问题~the method setCharacterEncoding(string) is undefined for the type HttpServletResponse [问题点数:20分]

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response乱码 response.setCharacterEncoding("UTF-8")不生效的原因及解决方法
本文主要讲述response乱码原因及 response.setCharacterEncoding("UTF-8")不生效的原因及解决方法 一、response乱码 1、首先,response返回有两种,一种是字节流outputstream,一种是字符流printwrite。 申明:这里为了方便起见,所有输出都统一用UTF-8编码。...
request和response的setCharacterEncoding()方法
转载自: https://blog.csdn.net/kong_lev/article/details/73071198 1、pageEncoding=”UTF-8”的作用是设置JSP编译成Servlet时使用的编码。 2、contentType=”text/html;charset=UTF-8”的作用是指定服务器响应给浏览器的编码。   JSP要经过两次的“编码”,第一阶段会用pa...
setLocale(java.util.Locale), setCharacterEncoding(java.lang.String),setContentType(java.lang.String ...
对于setCharacterEncoding(java.lang.String),这个方法是javax.servlet.ServletRequest和javax.servlet.ServletResponse都有的。ServletRequest用它来设置对来自客户端请求的字节流的解码方式,ServletResponse用它来设置发送给客户端的字节流的编码方式。例如:ServletResponse....
问题">解决为什么已经设置了request.setCharacterEncoding("utf-8");POST请求仍然乱码的问题
一、原网站解释:https://www.cnblogs.com/NextLight/p/8481359.html 二、我遇到的<em>问题</em>和解决方案 我遇到的<em>问题</em>是下面这个,实测可用,已经解决掉: 解决方式二: 类似与之前get请求的处理方法,先解码,再编码 String str = new String(getParameter(&amp;quot;message&amp;quot;).getBytes(&amp;quot;ISO-8859-1&amp;quot;),&amp;quot;UT...
request.setCharacterEncoding()
一、request.setCharacterEncoding():用来确保发往服务器的参数的编码格式,设置从request中取得的值或从数据库中取出的值。 指定后可以通过request.getParameter()获取自己想要的字符串,如果没有提前指定,则会按照服务器端默认的“iso-8859-1”来进行编码; 注意:该方法只对post请求有效,对get请求无效;对于get请求,应该在server...
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///////////////rn// 代码如下rn///////////////rnrnrnrnrnrnrnrnrnrnrnrnrnrnrn rn create.jsprnrnrn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrnrn///////////////////////rn// 下面是错误信息:rn//////////////////////*rnAn error occurred at line: 68 in the jsp file: /create.jsprnGenerated servlet error:rnThe <em>method</em> equlas(String) is <em>undefined</em> for the <em>type</em> Stringrn/////////////////////*/rn// JDK1.5 + Tomcat 5.5rn
The method addBatch(String) is undefined for the type String
String.addBatch(sql1);报错rn这是 DAOTest类rn[code=java]rnimport java.sql.Connection;rnimport java.sql.DriverManager;rnimport java.sql.ResultSet;rnimport java.sql.SQLException;rnimport java.sql.Statement;rnrnpublic class DAOTest rn Connection conn;rn Statement stmt;rn ResultSet rs;rn public Connection getConn() rn return conn;rn rn public Statement getStmt() rn return stmt;rn rn public ResultSet getRs() rn return rs;rn rn public DAOTest(Connection conn) rn this.conn=conn;rn try rn stmt=conn.createStatement();rn catch (SQLException e) rn // TODO Auto-generated catch blockrn e.printStackTrace();rn rn rn public void createTable() throws SQLException rn stmt.executeUpdate("drop table if exists 'jdbc_test'");rn String sql="create table jdbc_test(id int,name varchar(100))";rn stmt.executeUpdate(sql);rn System.out.println("jdbc_test表建立完成");rn rn public void insert() throws SQLExceptionrn String sql1="insert into jdbc_test values(1,'tom')";rn String sql2="insert into jdbc_test values(2,'张三')";rn String sql3="insert into jdbc_test values(3,'999')";rn String.addBatch(sql1);rn String.addBatch(sql2);rn String.addBatch(sql3);rn rn int[] results=stmt.executeBatch();rn for(int i=0;i
The method getSumByNum(String) is undefined for the type CardInfoDao
[code=Java]org.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: 439 in the jsp file: /index.jsprnThe <em>method</em> getSumByNum(String) is <em>undefined</em> for the <em>type</em> CardInfoDaorn436: PayInfo payInfo1=(PayInfo)payInfos1.get(i);rn437: eSum = Integer.parseInt(payInfo1.getCardNum().sub<em>string</em>(10,12));rn438: int moneySum = 0;rn439: moneySum = cid1.getSumByNum(payInfo1.getCardNum());rn440: %>rn441: rn442: rnrnrnStacktrace:rn org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)rn org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)rn org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:423)rn org.apache.jasper.compiler.Compiler.compile(Compiler.java:308)rn org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)rn org.apache.jasper.compiler.Compiler.compile(Compiler.java:273)rn org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)rn org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)rn org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)rn org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)rn javax.servlet.http.HttpServlet.service(HttpServlet.java:803)[/code]rn有getSumByNum这个方法,public int getSumByNum(String cardNum)rnrn上文中有定义CardInfoDao cid1 = new CardInfoDao();rnrnpayInfo1.getCardNum()返回的是String。rnrn请高手帮忙看一下会是哪里的<em>问题</em>,在线等。。。
The method wirte(String) is undefined for the type FileWriter
各位看官,帮忙看看,自己看了好久硬是没出来rnfw.write("\");theFloaters.play();");rnfw.wirte("\");theFloaters.addItem('followDiv2',1,'document.documentElement.clientHeight-458',\"");rn第一句不会报错 但是第二句会报错rn这个是什么原因啊~rn谢谢了!
The method getParametersValues(String) is undefined for the type HttpServletRequest
while(rs.next())rn %>rn rn >rn rn rn rn rn rn ).trim();rn这2行代码执行的时候报错:rnThe <em>method</em> getParametersValues(String) is <em>undefined</em> for the <em>type</em> HttpServletRequestrn方法未定义......rn什么意思 大家解释一下什么原因啊!rn
The method getDispatcherType() is undefined for the type HttpServletRequest 升级到tomcat8
配置项目,从tomcat低版本,放到tomcat8时,正常的项目居然报错了: The <em>method</em> getDispatcherType() is <em>undefined</em> for the <em>type</em> HttpServletRequest 从网上查资料,找可能出现这个<em>问题</em>的因素: 1可能是环境变量,检查了没<em>问题</em> 2有人说jar包冲突 对于servlet-api.jar这个包,原来工
一个问题 HttpServletResponse 怎么没有提供setCharacterEncoding()方法
代码片段如下 protected void encodeResponse( HttpServletResponse aResponse ) { // handle utf-8 chars in the
The method getServletContext() is undefined for the type HttpServletRequest
public void parseRequest(HttpServletRequest request){         System.out.println("parseRequest:"+request.getParameter("username")); System.out.println("realPath:"+request.getServletContext().getReal
关于jsp中获取错误码的问题request.getAttribute("javax.servlet.error.status_code")
request.getAttribute("javax.servlet.error.status_code")、 我想知道javax.servlet.error.status_code这个属性在哪里设
解决HttpServletResponse输出的中文乱码问题
首先,response返回有两种,一种是字节流outputstream,一种是字符流printwrite。 申明:这里为了方便起见,所有输出都统一用UTF-8编码。 先说字节流,要输出“中国",给输出流的必须是转换为utf-8的“中国”,还要告诉浏览器,用utf8来解析数据 //这句话的意思,是让浏览器用utf8来解析返回的数据         response.se
如何解决The method getIdcard() is undefined for the type String
这事封装对象的代码rnpackage cn.itcast.domain;rnrnpublic class Student rnrn private String idcard;rn private String examid;rn private String name;rn private String location;rn private double grade;rn rn rn public String getIdcard() rn return idcard;rn rn public void setIdcard(String idcard) rn this.idcard = idcard;rn rn public String getExamid() rn return examid;rn rn public void setExamid(String examid) rn this.examid = examid;rn rn public String getName() rn return name;rn rn public void setName(String name) rn this.name = name;rn rn public String getLocation() rn return location;rn rn public void setLocation(String location) rn this.location = location;rn rn public double getGrade() rn return grade;rn rn public void setGrade(double grade) rn this.grade = grade;rn rn rnrn这事操作代码rnimport cn.itcast.utils.XmlUtils;rnrnpublic class StudentDao rnrnrn public void add(String s)rn rn try rn Document document = XmlUtils.getDocument();rn rn //创建封装学生信息的标签rn Element student_tag = document.createElement("student"); rn student_tag.setAttribute("idcard", s.getIdcard());rn student_tag.setAttribute("examid", s.getExamid()); rn rn catch (Exception e) rn throw new RuntimeException(e);rn rn rn rnrn这里的getIdcard()和getExamid()方法会出现The <em>method</em> getIdcard() is <em>undefined</em> for the <em>type</em> String的错误啊!
The method **() is undefined for the type
在类中定义了该方法 rn类型正确rn在jsp页面上引用 为什么提示这样的错误rn请指点!
The method getParmaeter(String) is undefined for the type HttpServletRequest
rnrnrnrnrnrnrnrnrnrnrnrnrn rn 注册检查rnrnrnrnrnrnrnrnrnrnrnrnrnrnrnrnrn rn rn 用户注册rn rn rn rn rn rn rn rnrnrnrnrn rn rn rn rn rn  rn rn rn rn rn rn rn  rn rn rn rn rn *用 户 名: rn 用户名大于4小于20个字符rnrn rn *密 码:rn rn rn 密码大于6小于20个字符rnrn rn *重复密码: rn 必须与上面一致rnrn rn *电子邮箱: rnrnE-MAIL必须符合规则rnrn *性 别:rn 男 女rn 性别不能为空rnrnrn rn *QQ号码: rn rn qq不能为空rnrn rn *问 题:rn rnrnrn rn *答 案:rn rnrnrn rn 个人介绍:rn rnrn rn 看不清楚换一张rn rn rn rn 验证码:rn rn rn rnrnrnrn rn rn  rn rn rn rn rn rn rn  rn rn rn rn rn rnrnrn
The method executeUpdate(String) is undefined for the type DataBase
<em>问题</em>如下:rnorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: 70 in the jsp file: /JavaBeanTest/Vote.jsprnThe <em>method</em> executeUpdate(String) is <em>undefined</em> for the <em>type</em> DataBasern67: ++count;rn68: //鏇存敼鏁版嵁搴撳唴瀹�rn69: String s1 = "update vote set count = " + count + " where id = " + s;rn70: int n = DataBase.executeUpdate(s1 );rn71: if ( n > 0)rn72: rn73: out.print( "鎶曠エ鎴愬姛!!");rnrnrnStacktrace:rn org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:95)rn org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)rn org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:457)rn org.apache.jasper.compiler.Compiler.compile(Compiler.java:367)rn org.apache.jasper.compiler.Compiler.compile(Compiler.java:345)rn org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)rn org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594)rn org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:342)rn org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)rn org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)rn javax.servlet.http.HttpServlet.service(HttpServlet.java:722)rnrnrn我的JSP页面:rn 0)rn rn out.print( "投票成功!!");rn rn rn %>rnDataBase类:rnrnrn/*数据库连接类*/rnpackage com.db;rnimport java.sql.*;rnrnpublic class DataBase rn private static Connection con = null;rn private static Statement st = null;rn private static ResultSet rs = null;rn rn /*建立桥接器函数*/rn private static void forName()rn rn tryrn rn Class.forName("com.mysql.jdbc.Driver");rn rn catch (ClassNotFoundException e) rn rn e.printStackTrace();rn rn rn rn public static ResultSet executeQuery(String str)rn rn rn //建立桥接器rn forName();rn try rn rn //建立连接rn con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test1", "root", "");rn //建立SQL对象rn st = con.createStatement( ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);rn //执行查询rn rs = st.executeQuery(str);rn rn catch (SQLException e) rn rn e.printStackTrace();rn rn return rs;rn rn rn public static int executeUpdate(String str)rn rn int n = 0;rn //建立桥接器rn forName();rn try rn rn //建立连接rn con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test1", "root", "");rn //建立SQL对象rn st = con.createStatement( ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);rn //执行查询rn n = st.executeUpdate(str);rn rn catch (SQLException e) rn rn e.printStackTrace();rn rn return n;rn rnrnrn
没有为类型 HttpServletResponse 定义方法 setCharacterEncoding(String)
没有为类型 HttpServletResponse 定义方法 setCharacterEncoding(String)rnrn请问这是什么原因?
req.setCharacterEncoding的错误,不知道是为什么?应该怎样解决
我在写一个servlet的时候使用 res.setContentType("text/html; charset=GBK"); req.setCharacterEncoding("GBK"); 编译提
javax.servlet.http.Cookie.setHttpOnly(Z)V
java.lang.NoSuchMethodError: javax.servlet.http.Cookie.setHttpOnly(Z)V使用tomcat6 转换为7 即可在Servlet 3.0中增加对Cookie(请注意,这里所说的Cookie,仅指和Session互动的Cookie,即人们常说的会话Cookie)较为全面的操作API。最为突出特性:支持直接修改Session ID的名称(默...
JavaWeb中servlet中response.setCharacterEncoding,getRealPath方法未定义的解决
1,删除j2ee支持包
jfinal报错The method renderText(String) is undefined for the type HelloController
跟着jfinal文档的第一个demo学习的时候,发现运行不了,报错The <em>method</em> renderText(String) is <em>undefined</em> for the <em>type</em> HelloController 然后就看代码,找是不是漏了jar包,再次跟源码比较的时候才发现原来controller类HelloController忘了继承Controller类了。继承Controller类以后就好了真
如何解决The method getId() is undefined for the type String问题 java web问题
(1)package com.share.ORM; import com.share.ORM.NewsColumns; /** * NewsColumns entity. @author MyEcli
请问 the method validate(String,String) is undefined for the type User是什么问题
[color=#FF0000]后台提示[/color]rnrnrnrn[color=#FF0000]validate方法[/color]rnrn public static User validate(String username, String password)rn throws UserNotFoundException, PasswordNotCorrectException rn User u = null;rn Connection conn = DB.getConn();rn String sql = "select * from user where username = '" + username + "'";rn Statement stmt = DB.getStmt(conn);rn ResultSet rs = DB.getRs(stmt, sql);rn try rn if (!rs.next()) rn throw new UserNotFoundException("用户不存在:" + username);rn else rn if (!password.equals(rs.getString("password"))) rn throw new PasswordNotCorrectException("密码不正确哦!");rn rn u = new User();rn u.setId(rs.getInt("id"));rn u.setUsername(rs.getString("username"));rn u.setPassword(rs.getString("password"));rn u.setPhone(rs.getString("phone"));rn u.setAddr(rs.getString("addr"));rn u.setRdate(rs.getTimestamp("rdate"));rn rnrn catch (SQLException e) rn e.printStackTrace();rn finally rn DB.close(rs);rn DB.close(stmt);rn DB.close(conn);rn rn rn return u;rn rnrnrn[color=#FF0000]login.jsp[/color]rnrnrnrnrnrnrnrn rnrnrn rn rn rn rn rn rn rn rn 用户登录rn rn rn rn admin name:rn rn rn rn admin password:rn rn rn rn rn rn rnrnrn rnrnrnrnrn[color=#FF0000]User.java[/color]rnrnpackage com;rnrnimport java.sql.*;rnimport java.util.*;rnimport java.util.Date;rnrnimport com.util.DB;rnimport com.exception.*;rnrnpublic class User rn private int id;rn private String username;rn private String password;rn private String phone;rn private String addr;rn private Date Rdate;rnrn public int getId() rn return id;rn rnrn public void setId(int id) rn this.id = id;rn rnrn public String getUsername() rn return username;rn rnrn public void setUsername(String username) rn this.username = username;rn rnrn public String getPassword() rn return password;rn rnrn public void setPassword(String password) rn this.password = password;rn rnrn public String getPhone() rn return phone;rn rnrn public void setPhone(String phone) rn this.phone = phone;rn rnrn public String getAddr() rn return addr;rn rnrn public void setAddr(String addr) rn this.addr = addr;rn rnrn public Date getRdate() rn return Rdate;rn rnrn public void setRdate(Date rdate) rn Rdate = rdate;rn rnrn public void save() rn Connection conn = DB.getConn();rn String sql = "insert into user values(null,?, ?, ?, ?, ?) ";rn PreparedStatement pstmt = DB.getPStmt(conn, sql);rn try rn pstmt.setString(1, username);rn pstmt.setString(2, password);rn pstmt.setString(3, phone);rn pstmt.setString(4, addr);rn pstmt.setTimestamp(5, new Timestamp(Rdate.getTime()));rn pstmt.executeUpdate();rn catch (SQLException e) rn e.printStackTrace();rn finally rn DB.close(conn);rn rn rnrn // public static boolean userExists(String username)rn // //check the table to find out username exitstrn // return false;rn // rn // public static boolean isPasswordCorrect(String username)rn // return false;rn // rnrn public static User validate(String username, String password)rn throws UserNotFoundException, PasswordNotCorrectException rn User u = null;rn Connection conn = DB.getConn();rn String sql = "select * from user where username = '" + username + "'";rn Statement stmt = DB.getStmt(conn);rn ResultSet rs = DB.getRs(stmt, sql);rn try rn if (!rs.next()) rn throw new UserNotFoundException("用户不存在:" + username);rn else rn if (!password.equals(rs.getString("password"))) rn throw new PasswordNotCorrectException("密码不正确哦!");rn rn u = new User();rn u.setId(rs.getInt("id"));rn u.setUsername(rs.getString("username"));rn u.setPassword(rs.getString("password"));rn u.setPhone(rs.getString("phone"));rn u.setAddr(rs.getString("addr"));rn u.setRdate(rs.getTimestamp("rdate"));rn rnrn catch (SQLException e) rn e.printStackTrace();rn finally rn DB.close(rs);rn DB.close(stmt);rn DB.close(conn);rn rn rn return u;rn rnrn
The method getHibernateTemplate() is undefined for the type XX
[code=XML]rnrnrnrn rn rn rn rn rn rn rn rn rn rn rn org.hibernate.dialect.MySQLDialectrn truern rn rn rn rn com/entity/A.hbm.xmlrn com/entity/B.hbm.xmlrn com/entity/C.hbm.xmlrn rn rn rn rn com.entityrn rn rn rnrnrn rn rn rn rn rnrn rn rn rn rn rn rnrn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrn rn rnrn[/code]rnrnrnJAVA测试类获取dao保存数据都没有<em>问题</em>,使用页面保存在获取调用dao时就出现dao对象为空!rnrn rnrnpublic class DServer rn rn private BDAO dao;rn rn rn public BDAO getBDao() rn return dao;rn rnrnrn public void setDao(BDAO dao) rn this.dao = dao;rn rnrnrn public boolean save(C obj)rn System.out.println(dao);rn System.out.println(obj);rn dao.save(obj);rn rn return true;rn rnrnrnrn异常:rnThe <em>method</em> getHibernateTemplate() is <em>undefined</em> for the <em>type</em> DServer ??rn急rn
The method getJspApplicationContext(ServletContext) is undefined for the type
项目之前都是好好的,运行正常,但不知啥原因,突然不能正常运行,所有访问都报这个错误码,其它项目可以正常运行,rn在网上找了一圈,都是说建立web项目时生成servlet-api.jar,jsp-api.jar与tomcat的包有冲突,比tomca版本低rn但我没有发现我的项目有重复的这些包,大家没有遇到这个<em>问题</em>rnrn2014-3-31 9:38:37 org.apache.jasper.compiler.TldLocationsCache tldScanJarrn信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.rn2014-3-31 9:38:39 org.apache.catalina.core.StandardWrapperValve invokern严重: Servlet.service() for servlet [jsp] in context with path [/MobileHospital_bank] threw exception [Unable to compile class for JSP: rnrnAn error occurred at line: [36] in the generated java file: [D:\apache-tomcat-7.0.42\work\Catalina\localhost\test_project\org\apache\jsp\index_jsp.java]rnThe <em>method</em> getJspApplicationContext(ServletContext) is <em>undefined</em> for the <em>type</em> JspFactoryrnrnStacktrace:] with root causernorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: [36] in the generated java file: [D:\apache-tomcat-7.0.42\work\Catalina\localhost\test_project\org\apache\jsp\index_jsp.java]rnThe <em>method</em> getJspApplicationContext(ServletContext) is <em>undefined</em> for the <em>type</em> JspFactoryrnrnStacktrace:rn at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103)rn at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:366)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:468)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)rn at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:96)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)rn at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)rn at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)rn at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)rn at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)rn at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)rn at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)rn at java.lang.Thread.run(Thread.java:662)rn
The method getPartNum() is undefined for the type UserDaoImpl
[code=Java]严重: Servlet.service() for servlet jsp threw exceptionrnorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: 28 in the jsp file: /<em>method</em>.jsprnThe <em>method</em> getPartNum() is <em>undefined</em> for the <em>type</em> UserDaoImplrn25: rn26: rn27: rn28: tolNum:rn29: rn30: rnrnrnStacktrace:rn at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)rn at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)rn at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)rn at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)rn at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)rn at java.lang.Thread.run(Thread.java:619)[/code]rn我明明在UserDaoImpl中定义了getPartNum()的方法,但是为什么回出这样的错误呢?
The method getTextContent() is undefined for the type Node
import org.w3c.dom.Node;rn为什么这里的node.getTextContent()方法在jdk下可以适用,当我把程序迁移到web项目下的时候总是提示这个方法不可用。是怎么回事那?
jeeplus 使用:The method setShi(String) is undefined for the type addRow_tag
在使用jeeplus中,使用自定义tag添加自定义属性提示:The <em>method</em> setShi(String) is <em>undefined</em> for the <em>type</em> addRow_tag 原因:在框架jar包里(org.jeeframework.gencode.1.5.jar)里的tag/web/table 里,已经写死了tag类。如果想在原有类基础上添加属性且不改框架源码,可以复制一个addRo
The method isEmpty(String) is undefined for the type StringUtils解决办法
在myecplise开发spring项目是出现The <em>method</em> isEmpty(String) is <em>undefined</em> for the <em>type</em> StringUtils解决办法把导入的//import org.springframework.util.StringUtils; 改成 import org.apache.commons.lang.StringUtils;注:需要导入org.ap...
打war包时出现The method encodeToString(byte[]) is undefined for the type Base64
在war包中出现错误 解决方法:     这是由于jar包冲突,查看lib文件夹中是否有低版本的commons-codec.jar(这个方法是从1.4开始的)
Access restriction: The method encode(byte[]) from the type CharacterEncoder
今天在运行一个b/s项目时,完事之后发现多创建了server,分别是tomcat6和tomcat7,然后刚好这个项目用的是tomcat6,想着也用完了就把服务删除掉,当时服务里还包含这个项目在删除的时候,提示也没仔细看,等再编译完事之后,就报如下图错误: 后来网上一搜就发现,是eclipse的设置<em>问题</em>: 这个是eclipse设置<em>问题</em>,它默认把这些受访问限制的API设成了ERROR
JAVA 使用BASE64提示Access restriction: The method 'CharacterEncoder.encodeBuffer(byte[])' is not API
JAVA 使用BASE64提示 Access restriction: The <em>method</em>'CharacterEncoder.encodeBuffer(byte[])' is not API (restriction on requiredlibrary 'C:\Program Files\Java\jre1.8.0_51\lib\rt.jar') 解决方法如下面的图解所示: 1、
The method getSingleResult() is undefined for the type Query
关联的代码提取下rnrn rn 出现的错误rn
The method getActualTypeArguments() is undefined for the type ParameterizedType
public abstract class HibernateDaorn private Class clazz;rn protected HibernateDao() rn ParameterizedType <em>type</em>=(ParameterizedType)getClass().getGenericSuperclass();rn clazz=(Class)<em>type</em>.[color=#FF0000]getActualTypeArguments()[/color][0];rn rn rn红色部分报错 为什么啊?
The method getBytes() is undefined for the type Long
这种错误怎么解决,求大神指导
奇怪的问题:The method a() is undefined for the type print
如题:[color=#FF0000]The <em>method</em> a() is <em>undefined</em> for the <em>type</em> print[/color]rn我把print.java放在页面中则正确rn=================test.jsp============rnrnrnrnrnrnrnrnrn============print.java===============rnpackage com.cjlu.tools;rnpublic class printrnrn rn public String a()rn rn return "CHEN";rn rnrnrnrn[color=#339966]--------------------------------------------------------------------rn以下内容为自动编辑的内容,并非楼主的发贴内容,此仅用于显示而已,并无任何其他特殊作用rn楼主【ch_space】截止到2008-08-04 15:03:25的历史汇总数据(不包括此帖):rn发帖的总数量:1 发帖的总分数:20 每贴平均分数:20 rn回帖的总数量:1 得分贴总数量:0 回帖的得分率:0% rn结贴的总数量:1 结贴的总分数:20 rn无满意结贴数:0 无满意结贴分:0 rn未结的帖子数:0 未结的总分数:0 rn结贴的百分比:100.00% 结分的百分比:100.00% rn无满意结贴率:0.00 % 无满意结分率:0.00 % rn敬礼![img=http://p.blog.csdn.net/images/p_blog_csdn_net/java2000_net/381633/o_medal1.gif][/img][/color]rn取消马甲机器人,请点这里:[url=http://www.java2000.net/mycsdn/robotStop.jsp?usern=ch_space][/url]
项目代码报:The method xx方法( ) is undefined for the type XX类
一般报这个错,三种情况: (1)导错包了,比如 本来导入第二个包,你却导入了第一个包。 这种错误好发现,因为编辑器会提示你,MapUtils cannot be resolved ,修改包即可。 (2)你虽然在项目中导入了这个jar包,但是当前版本的jar,不支持这个方法。                      明明导入了,怎么没
The method encode(byte[]) from the type CharacterEncoder is not accessible due to restriction on req
今天刚从cvs上更新了项目,然后就报了一个错,如下图: 查了查说是MyEclipse配置的错误,默认的配置将调用一些访问受限的API设成了ERROR,只要设置为warnning即可,如下图: 转自http://blog.csdn.net/zp357252539/article/details/51429819
The method setConfig(RequestConfig) is undefined for the type HttpGet
今天在写一个httpclient的请求时,引入了httpclient4.5.6的jar包,报这个错误 后来经过调试,发现是引入的jar包与tomcat8自带的httpclient4.2.1jar包冲突,先将tomcat8的library删掉,导入httpclient4.5.6的相关jar包,再导入tomacat的library,<em>问题</em>解决。我估计删除tomcat自带的httpclient4.2.1...
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The <em>method</em> getItemNo() is <em>undefined</em> for the <em>type</em> Item怎么解决 public class ItemDao4OracleImpl implements
RequestConfig、HttpClient
一、RequestConfigBuilder(org.apache.http.client.config.RequestConfig.Builder) 是RequestConfig(org.apache.http.client.config.RequestConfig) 的内部类,专门用于创建RequestConfig。我经常这样创建RequestConfig: RequestCon...
求教JSP高手,The method delete(String) is undefined for the type conn
源码是这样的。rn在usermanger.jsp用代码导入到delete.jsp中rn删除rnrndelete.jsp源码如下rnrnrnrnrnrn rn rn rn My JSP 'wrong.jsp' starting pagern rn rn rn rn rn rn rnrn rn rn rn rn rnrn rn rnrnrnConn.jsp源码如下rnpackage Conn;rnimport java.sql.*;rnpublic class connrn String sDBDriver="sun.jdbc.odbc.JdbcOdbcDriver";rn String sConnStr="jdbc:odbc:test";rn Connection connect=null;rn ResultSet rs=null;rn public conn()rn tryrn Class.forName(sDBDriver);rn catch(java.lang.ClassNotFoundException e)rn rn System.err.println(e.getMessage());rn rn public ResultSet executeQuery(String sql) rn //执行查询数据库操作的方法rn tryrn connect=DriverManager.getConnection(sConnStr); rn //连接Access数据库rn Statement stmt=connect.createStatement(); rn //创建向数据库提交查询语句的Statement对象rn rs=stmt.executeQuery(sql);rn //将查询结果保存再结果集rs中rn catch(SQLException ex)System.err.println(ex.getMessage());return rs;rn rn public String delete(String sql) rn rn PreparedStatement pre=null;rn int num=0;rn try rn connect=DriverManager.getConnection(sConnStr);rn pre=connect.prepareStatement(sql);rn num=pre.executeUpdate();rn if(num>0)rn return "1";rn rn catch (SQLException e) rn // TODO Auto-generated catch blockrn e.printStackTrace();rn rn return "0";rn rnrnrnrntomcat显示的错误为:rnorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: 31 in the jsp file: /delete.jsprnThe <em>method</em> delete(String) is <em>undefined</em> for the <em>type</em> connrn28: String n = request.getParameter("id");rn29: if(n.equals("1"))rn30: String sql="delete from denglu where pkid=1";rn31: connDBBean2.delete(sql);rn32: response.sendRedirect("usermanger.jsp");rn33: rn34: rnrnrnconn.java中明明有delete方法啊,为什么行,求教。
The method init(String) is undefined for the type GoodsField 在线等!!
GoodsField.javarnpackage com.netshop;rnimport java.sql.*;rnimport java.text.*;rnpublic class GoodsField extends executeWayrnrn private long ID;rn private String name;rn private int tag;rn public GoodsField()rn rn ID=0;rn name="";rn tag=0; rn rn public String getName()rn rn return this.name;rn rn public void setName(String name)rn rn this.name=name;rn rn rn public int getTag()rn rn return this.tag;rn rn public void setTag(int tag)rn rn this.tag=tag;rn rn public boolean init(String webID)rn rn String strSql="select * from goodsField where name='"+webID+"'";rn tryrn rn ResultSet rs=super.exeSqlQuery(strSql);rn if(rs.next())rn rn ID=rs.getLong("ID");rn name=rs.getString("name");rn tag=rs.getInt("tag");rn return true;rn rn elsern rn return false;rn rn rn catch(Exception ex)rn rn System.out.println(ex.toString());rn return false;rn rn rnrnquery.jsprnrnrn rnrnrn运行时提示The <em>method</em> init(String) is <em>undefined</em> for the <em>type</em> GoodsFieldrn着GoodsField里可是有init()啊?求解
The method getDataSource(HttpServletRequest) is undefined for the type LoginAction
package com.struts.chaptertwo;rnimport javax.servlet.http.HttpServletRequest;rnimport javax.servlet.http.HttpServletResponse;rnimport org.apache.struts.action.Action;rnimport org.apache.struts.action.ActionForm;rnimport org.apache.struts.action.ActionForward;rnimport org.apache.struts.action.ActionMapping;rnrnimport javax.sql.DataSource;rnimport java.sql.Connection;rnimport java.sql.ResultSet;rnimport java.sql.SQLException;rnimport java.sql.Statement;rnrnpublic class LoginAction extends Actionrn public ActionForward execute(ActionMapping mapping, ActionForm form,rn HttpServletRequest request, HttpServletResponse response) rn rn LoginActionForm loginActionForm=(LoginActionForm)form;rn String username=loginActionForm.getUsername();rn String password=loginActionForm.getPassword();rn rn rn rn DataSource ds=[color=#FF6600]getDataSource[/color](request);rn Connection conn=ds.getConnection();rn Statement stmt=conn.createStatement();rn String sqlStr="select * from loginuser where username='"+username+"' and password='"+password+"'";rn ResultSet rs=stmt.executeQuery(sqlStr);rn Boolean result=false;rn if(rs.next())rn rn result =true;rn rn rn elsern rn result=false;rn rn conn.close();rn rn if(result)rn return mapping.findForward("wellcome");rnrn elsern rn return mapping.findForward("wrong");rn rn rnrn
The method querySubCategory(int) is undefined for the type GoodsCatedao
该方法存在为什么报The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedao错误呢?rn具体错误:rn2010-7-7 18:24:22 org.apache.catalina.core.StandardWrapperValve invokern严重: Servlet.service() for servlet default threw exceptionrnjava.lang.Error: Unresolved compilation problems: rn The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedaorn The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedaorn The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedaornrn at kaiqi.goods.actions.GoodsCateAction.searchJLExecute(GoodsCateAction.java:531)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn at java.lang.reflect.Method.invoke(Method.java:585)rn at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:404)rn at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:267)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:229)rn at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)rn at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:167)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvoc
The method prevous() is undefined for the type ResultSet 错误信息
------------------------出现这样的 错误信息----------------------------------45: %> rn46: rn47: rn-------------------------------m * n 的代码--------------------------------------rn源程序rn rn rn rn rn rn rn
httpclient中PostMethod和HttpPost
PostMethod String str=""; String url="http://10.224.229.22:8086/stl-crm-itf/v1/foss/canDebitIsBeBebt/canDebitIsBeBebt"; String requestStr="{\"requestEntity\":{\"paidMethod\":\"DT\",\"deliveryCust
问题">request.getRealPath("/")过期问题
request.getRealPath("") 这个方法已经不推荐使用了
The method getRealPath(String) from the type ServletRequest is deprecated
File tempFile = new File(fileName);// 构造临时对象       // String savePath=tempFile.getName();       // //返回上传文件在客户端的完整路径名称       // request.setAttribute(&quot;filename&quot;, savePath); //File file = new File(requ...
request.getRealPath 过期解决
例子: String fileUrl = request.getSession().getServletContext().getRealPath("/upload")+"/stafftemplate.xls"; request.getRealPath("") 这个方法已经不推荐使用了,那代替它的是什么方法呢? 下面就是替代它的方法: request.getSession().getS
rs.close();报错The method close() is undefined for the type Resultset?
跟着视频做个很简单的数据库连接和关闭,结果出现这个错误,网上找了一堆没跟我一样的。。。rn错误提示rnThe <em>method</em> close() is <em>undefined</em> for the <em>type</em> Resultsetrnrn代码如下rnrn```rnpackage com.zkz.magSystem.com;rnrnimport java.sql.Connection;rnimport java.sql.DriverManager;rnimport java.sql.PreparedStatement;rnimport java.sql.SQLException;rnrnimport com.mysql.cj.protocol.Resultset;rnrnpublic class BaseDAO rn public static Connection getConnection() throws Exceptionrn rn Class.forName("com.mysql.jdbc.Driver");rn return DriverManager.getConnection("jdbc:mysql://localhost:3306/exam","root","12345");rn rn rn public static void close(Connection conn,PreparedStatement ps,Resultset rs)rn try rn if(rs != null) rs.close();rn if(ps != null) ps.close();rn if(conn !=null && !conn.isClosed()) conn.close();rn catch (SQLException e) rn // TODO Auto-generated catch blockrn e.printStackTrace();rn rn rnrn```
The method screenshot(int, int) is undefined for the type Surface
下载的截屏代码,下面这行代码出错:rnmScreenBitmap = Surface.[color=#FF0000]screenshot[/color]((int) dims[0], (int) dims[1]);rn提示:rnThe <em>method</em> screenshot(int, int) is <em>undefined</em> for the <em>type</em> Surfacernrn还有rnimport android.hardware.CameraSound;rnimport android.os.ServiceManager;rnimport android.os.SystemProperties;rn这三行语句也出错,提示rnThe import android.hardware.CameraSound cannot be resolvedrnrn这是什么原因造成的?是因为API版本不同吗?
急!!the method getTextContent() is undefined for the type Element
package dom;rn/**rn * parse xml filern * @author Administratorrn *rn */rnimport javax.xml.parsers.*;rnimport org.w3c.dom.*;rnrnpublic class ParseXMLByDom rn rn //get document object by parse filern public Document getDocumentByFile()throws Exceptionrn DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance();rn DocumentBuilder db=dbf.newDocumentBuilder();rn Document doc=db.parse("student.xml");rn return doc;rn rn //parse xml filern public void parseXMLFile(Document doc)throws Exceptionrn //获得student元素的ID属性值rn getStudentAttrValue(doc);rn //获得student 的ID=101的子元素文本的内容rn //getChildEleText(doc);rn rn public void getStudentAttrValue(Document doc)rn NodeList nodeLst=doc.getElementsByTagName("student");rn int len=nodeLst.getLength();rn for(int i=0;i"+text+"");rn rn rn rn /**rn * @param argsrn */rn public static void main(String[] args) rn ParseXMLByDom parseXML=new ParseXMLByDom();rn tryrn parseXML.getStudentAttrValue(parseXML.getDocumentByFile());rn catch(Exception ex)rn ex.printStackTrace();rn rnrn rnrnrn 为什么String text=childEle.getTextContent();报错呢??怎么解决啊??
问题:The method add(String, Component) in the type Container......
[color=#0000FF]程序1:[/color]rnimport java.awt.*;rnimport java.awt.event.*;rnimport javax.swing.*;rnrnpublic class Bounce rn rn public static void main(String[] args) rn EventQueue.invokeLater(new Runnable()rn rn public void run()rn rn JFrame frame=new BounceFrame();rn frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);rn frame.setVisible(true);rn rn rn );rnrn rnrnrnrnclass BounceFrame extends JFramernrn public BounceFrame()rn rn setSize(DEFAULT_WIDTH,DEFAULT_HEIGH);rn setTitle("Bounce");rn comp=new BallComponent();rn [color=#FF0000]add(comp,BorderLayout.CENTER);[/color]rn JPanel buttonPanel=new JPanel();rn addButton(buttonPanel,"Start",new ActionListener()rn rn public void actionPerformed(ActionEvent event)rn rn addBall();rn rn );rn addButton(buttonPanel,"Close",new ActionListener()rn rn public void actionPerformed(ActionEvent event)rn rn System.exit(0);rn rn );rn rn rn public void addButton(Container c, String title, ActionListener listener)rn rn JButton button=new JButton(title);rn c.add(button);rn button.addActionListener(listener);rn rn public void addBall()rn rn tryrn rn Ball ball=new Ball();rn comp.add(ball);rn for(int i=1;i<=STEPS;i++)rn rn [color=#FF0000]ball.move(comp.getBounds());rn comp.paint(comp.getGraphics());[/color] Thread.sleep(DELAY);rn rn catch(InterruptedException e)rn rn rn rn rn private BallComponent comp;rn public static final int DEFAULT_WIDTH=450;rn public static final int DEFAULT_HEIGH=350;rn public static final int STEPS=1000;rn public static final int DELAY=3;rnrn[color=#0000FF]程序2:[/color]rnimport java.awt.geom.Ellipse2D;rnimport java.awt.geom.Rectangle2D;rnrnrnpublic class Ball rnrn public void move(Rectangle2D bounds)rn rn x+=dx;rn y+=dy;rn if( x =bounds.getMaxX())rn rn x=bounds.getMaxX()-XSIZE;rn dx=-dx;rn rn if(y=bounds.getMaxY())rn rn y=bounds.getMaxY()-YSIZE;rn dy=-dy;rn rn rn public Ellipse2D getShape()rn rn return new Ellipse2D.Double(x,y,XSIZE,YSIZE);rn rnprivate static final int XSIZE=15;rnprivate static final int YSIZE=15;rn private double x=0;rn private double y=0;rn private double dx=1;rn private double dy=1;rn rnrn[color=#3366FF]程序3:[/color]rnrnimport java.awt.*;rnimport java.util.*;rnimport javax.swing.*;rnpublic class BallComponent rn public void add(Ball b)rn rn balls.add(b);rn rn public void paintComponent(Graphics g)rn rn [color=#FF0000]super.paintComponent(g);[/color] rn Graphics2D g2=(Graphics2D) g;rn for(Ball b : balls)rn rn g2.fill(b.getShape());rn rn rn rn private ArrayList balls=new ArrayList();rnrn在程序1中红色部分是有错误的,报错信息如下:rnThe <em>method</em> add(String, Component) in the <em>type</em> Container is not applicable for the arguments (BallComponent, String)rn The <em>method</em> getBounds() is <em>undefined</em> for the <em>type</em> BallComponentrn The <em>method</em> getGraphics() is <em>undefined</em> for the <em>type</em> BallComponentrn请问为什么会报着几个错误,该如何进行修改?rn在程序3中红色部分也是有错误的,不知道出错原因是什么?rn请高人帮忙解答一下,非常感谢。rn因为下面写不了了,只有在这儿写了,经过下面的修改后,再在程序1中加一行代码add(comp,BorderLayout.CENTER);就OK 了
HttpServletResponse的setContentType和setCharacterEncoding具体有什么区别?
HttpServletResponse的setContentType和setCharacterEncoding具体有什么区别?rnrn两者都可以设置编码,那么有何区别呢?为什么要有两个方法呢?rnresp.setContentType("text/html;charset=utf-8");rnresp.setCharacterEncoding("utf-8");rn如果要设置编码,使用setContentType不就够了么?
getRealPath
The <em>method</em> getRealPath(String) from the <em>type</em> ServletRequest is deprecatedrequest.getRealPath("") 这个方法 不推荐使用 Deprecated. As of Version 2.1 of the Java Servlet API, use ServletContext.getRealPath(java.lang.String) in
getRealPath方法过时(有删除线)
getRealPath()加了删除线,表示开发包升级不推荐使用了!   如下: String path = ServletActionContext.getRequest().getRealPath("/xx");   解决代替方法:   HttpServletRequest request = ServletActionContext.getRequest(); String p
request.getRealPath()方法不推荐使用
ServletActionContext.getRequest().getRealPath("");getRealPath上面有删除线是因为已经不推荐这样使用了 The <em>method</em> getRealPath(String) from the <em>type</em> ServletRequest is deprecated 可以使用 ServletActionContext.getRequest().
The method getServletContext is undefined for the type HttpServletRequest
ServletContext servletContext = request.getServletContext(); 在myeclipse中,request中没有getServletContext()方法。出错原因,jar包版本不一致 可以改写为 ServletContext servletContext = getServletContext(); ...
有关getServletContext
public void parseRequest(HttpServletRequest request){ System.out.println("parseRequest:"+request.get
undefined method `owner' for #问题
我在model里定义了owner方法,如下:rndef ownerrn owner_id ? User.finds(:first, :conditions => "users.id = #owner_id") : nilrn endrn但是调用时却提示未定义的方法,调用代码如下:rnrn :rn rnrn这是什么<em>问题</em>呢??
undefined type 问题
以前没做过java程序,最近要调一个已经做好程序的分页代码,把源程序导入到myecplise中rn发现出现了很多红叉叉,在网上查了下,编译报错rn主要是2个方面rn (提示the import com.jspsmart can not be resolved)rnrnrnrn rn 无标题文档rn rnrnrnrn
undefined for the type
rn2012-5-8 16:06:43 org.apache.catalina.startup.HostConfig deployDirectoryrn信息: Deploying web application directory ROOTrn2012-5-8 16:06:44 org.apache.coyote.http11.Http11AprProtocol startrn信息: Starting Coyote HTTP/1.1 on http-8080rn2012-5-8 16:06:44 org.apache.coyote.ajp.AjpAprProtocol startrn信息: Starting Coyote AJP/1.3 on ajp-8009rn2012-5-8 16:06:44 org.apache.catalina.startup.Catalina startrn信息: Server startup in 9662 msrn2012-5-8 16:06:57 org.apache.catalina.core.StandardWrapperValve invokern严重: Servlet.service() for servlet jsp threw exceptionrnorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: 393 in the jsp file: /Club/index.jsprnThe <em>method</em> getT() is <em>undefined</em> for the <em>type</em> ActIfrn390: rn391: rn395: rn396: rnrnrnStacktrace:rn at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)rn at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)rn at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:861)rn at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)rn at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1584)rn at java.lang.Thread.run(Unknown Source)rn
The method getAttribute(String) in the type HttpSession is not applicable fo
The <em>method</em> getAttribute(String) in the <em>type</em> HttpSession is not applicable for the arguments (boolean)中getAttribute获取不到
The method add(string) in the type ArrayList is not applicable for the a
rnimport java.util.ArrayList;rnrnpublic class APP2 rnrn public static void main(String[] args) rn ArrayList list = new ArrayList();rn list.add("SE");rn list.add("EE");rn list.add("ME");rn list.add("SE");rn list.add("EE");rn list.remove("SE");rn System.out.print(list);rn rnrnrnrn为什么add这里显示The <em>method</em> add(<em>string</em>) in the <em>type</em> ArrayList is not applicable for the arguments (String)rn编译错误,求解
The method getDispatcherType() is undefined for the type HttpServletRequest错误解决方法
使用Eclipse Luna版本,jdk1.7和tomcat8.0开发JAVA EE应用。写一个简单的JSP部署后访问报JSP编译错误,具体错误信息如下: The <em>method</em> getDispatcherType() is <em>undefined</em> for the <em>type</em> HttpServletRequest Stacktrace: org.apache.jasper....
The method getDispatcherType() is undefined for the type HttpServletRequest解决办法
我和小伙伴一起做一个项目,他从我的github上clone代码到自己机器运行出现这个错误 后来检查出来试因为tomcat版本不一致,我用的8.0.27,他是8.0.23 给他装了8.0.27的tomcat之后就好了
The method getDispatcherType() is undefined for the type HttpServletRequest
web项目访问时就报错,新建的一个jsp文件里面没有任何的内容也报错,错误:The <em>method</em> getDispatcherType() is <em>undefined</em> for the <em>type</em> HttpServletRequest 严重: Servlet.service() for servlet [jsp] in context with path [/studentManage] threw
问题“The method getDispatcherType() is undefined for the type HttpServletRequest”
原来正常运行的项目,加了些功能后,突然遇到了 个错误: 严重: Servlet.service() for servlet [jsp] in context with path [/smsm1] threw exception [Unable to compile class for JSP:  An error occurred at line: [65] in the gene
The method list(String, Object[]) is ambiguous for the type BaseHibernateDao
@Overridern public List listAll(int pn, int pageSize) rn return list(HQL_LIST_ALL, pn, pageSize);rn rn rn @Overridern public List pre(PK pk, int pn, int pageSize) rn if(pk == null) rn return list(HQL_LIST_ALL, pn, pageSize);rn rn //倒序,重排rn List result = list(HQL_OPTIMIZE_PRE_LIST_ALL, 1, pageSize, pk);rn Collections.reverse(result);rn return result;rn rn @Overridern public List next(PK pk, int pn, int pageSize) rn if(pk == null) rn return list(HQL_LIST_ALL, pn, pageSize);rn rn return list(HQL_OPTIMIZE_NEXT_LIST_ALL, 1, pageSize, pk);rn rnrn @Overridern public void flush() rn getSession().flush();rn rnrn @Overridern public void clear() rn getSession().clear();rn rnrn protected long getIdResult(String hql, Object... paramlist) rn long result = -1;rn List list = list(hql, paramlist);rn if (list != null && list.size() > 0) rn return ((Number) list.get(0)).longValue();rn rn return result;rn rnrn protected List listSelf(final String hql, final int pn, final int pageSize, final Object... paramlist) rn return this. list(hql, pn, pageSize, paramlist);rn rnrnrn /**rn * for inrn */rn @SuppressWarnings("unchecked")rn protected List listWithIn(final String hql,final int start, final int length, final Map> map, final Object... paramlist) rn Query query = getSession().createQuery(hql);rn setParameters(query, paramlist);rn for (Entry> e : map.entrySet()) rn query.setParameterList(e.getKey(), e.getValue());rn rn if (start > -1 && length > -1) rn query.setMaxResults(length);rn if (start != 0) rn query.setFirstResult(start);rn rn rn List results = query.list();rn return results;rn rnrn @SuppressWarnings("unchecked")rn protected List list(final String hql, final int pn, final int pageSize, final Object... paramlist) rn Query query = getSession().createQuery(hql);rn setParameters(query, paramlist);rn if (pn > -1 && pageSize > -1) rn query.setMaxResults(pageSize);rn int start = PageUtil.getPageStart(pn, pageSize);rn if (start != 0) rn query.setFirstResult(start);rn rn rn if (pn < 0) rn query.setFirstResult(0);rn rn List results = query.list();rn return results;rn rn
undefined local variable or method
初学者<em>问题</em>:rn在controllers写了这段代码rnclass WikiStatController < ApplicationControllerrn scaffold:wiki_statrn def listrn @wiki_stats = wiki_stat.find_allrn end rnendrnrnmodels已经创建,同时在views中已经创建了list.rhtmlrn代码如何:rnrnrn 软件部wiki统计 rnrnrn 软件部wiki统计rnrn rn rn authorrn allcountrnrnrnrn rn rn rnrnrnrnrnrnrnrn但是在运行时确提示下列错误:rnNameError in Wiki statController#list rn<em>undefined</em> local variable or <em>method</em> `wiki_stat' for #rnRAILS_ROOT: C:/Ruby/wikirnrnApplication Trace | Framework Trace | Full Trace rnapp/controllers/wiki_stat_controller.rb:4:in `list'rnrn我的mysql数据库表为wiki_stats,字段为author,allcount。在只有scaffold:wiki_stat这段代码时页面上能运行,但我通过list运行时确错误了,不知道是什么原因引起的。望赐教!!!!
The method getParameterMap() is undefined
所需包已经导入,而且也已经重新编译过,为什么还会出现这种情况,请高手回答!
undefined method `find_all' for #
我只是一个很简单的例子啊,为什么会不行?rnrnclass BookController < ApplicationControllerrn scaffold:bookrn def listrn @books = Book.find_allrn endrnendrnrn还是书上的例子
use of undefined type 'C_Recordset'的问题
我在函数中加入if(m_adodc.GetRecordset().GetEof()==1)...rn编译出错:rnD:\vc编程\ADOData\ADODataDlg.cpp(197) : error C2027: use of <em>undefined</em> <em>type</em> 'C_Recordset'rnd:\vc编程\adodata\adodc.h(14) : see declaration of 'C_Recordset'rnD:\vc编程\ADOData\ADODataDlg.cpp(197) : error C2228: left of '.GetEof' must have class/struct/union <em>type</em>rnError executing cl.exe.rnADOData.exe - 2 error(s), 0 warning(s)rn请各位帮我看看<em>问题</em>出在哪儿?谢谢!!
The method getbean(String) is undefined for the type StuNewAddAction
package com.yourcompany.struts.action; import java.util.List; import javax.servlet.http.HttpServletR
The method configure() is undefined for the type Configuration
Configuration config=new Configuration().configure(); 这是代码,为什么引包了还是出现标题的错误
The method getDispatcherType() is undefined for the type HttpServletRequest的解决方法
很有可能是使用了tomcat8,把tomcat的lib包下面的jsp-api.jar换成tomcat7的。亲测,it works!
The method getWriter() is undefined for the type HttpServletRequest的问题
The <em>method</em> getWriter() is <em>undefined</em> for the <em>type</em> HttpServletRequest的<em>问题</em> 突然出现了The <em>method</em> getWriter() is <em>undefined</em> for the <em>type</em> HttpServletRequest的<em>问题</em>,然后在网上找说是servlet-api的<em>问题</em>,说是删了这个包就没<em>问题</em>了,但是删了发现错误更多了,我用的是...
undefined method 'rectangle' for main
错误信息是:n<em>undefined</em> <em>method</em> 'rectangle' for main:object(NoMethod Error)n这个是ruby的错误提示,不知道是意思,请大神帮忙解决n代码如下:nclass Rectanglen def initialize(wdth,hgt)n @width = wdthn @height = hgtn endn def width=(wdth)n @width = wdthn endnendnnr = Rectangle(2,3)nputs r.width = 5nputs r.widthn
undefined method `default_scope' for #
最近运行别人的工程,报错rn<em>undefined</em> <em>method</em> `default_scope' for #rn原工程是rails2.2的,插件一大堆,gem list也一大堆,rn搞不懂这个错是怎么回事?有高手能给点头绪?rn
method(String)问题
void go(String s)s="bbb";rn然后执行rnString s="aaa";rngo(s);rnSystem.out.println(s);rn为什么s没被更改?s不是对象引用吗?
hibernate中出现The method configure() is undefined for the type Configuration
rn Configuration cfg = new Configuration();rn rn SessionFactory sf=cfg.configure().buildSessionFactory();rn 上述代码显示如题所示的错误,求大神指导!!!rnrnrn
为什么始终会出现The method setListAdapter(SimpleAdapter) is undefined for the type
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