再线等简单的问题,高手来阿
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:16: cannot resolve s
ymbol
symbol : variable DatabaseConn
location: class com.wuxin.ContactBean
conn=DatabaseConn.getConnection();
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:37: cannot resolve s
ymbol
symbol : class PageBean
location: class com.wuxin.ContactBean
PageBean pageBean=new PageBean(this);
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:37: cannot resolve s
ymbol
symbol : class PageBean
location: class com.wuxin.ContactBean
PageBean pageBean=new PageBean(this);
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:62: cannot resolve s
ymbol
symbol : class pageBean
location: class com.wuxin.ContactBean
pageBean curPage=pageNum;
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:63: cannot resolve s
ymbol
symbol : class pageBean
location: class com.wuxin.ContactBean
pageBean data=v;
^
7 errors
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes>javac "D:\Tomcat 5.0\webapps\ROOT\WEB
-INF\classes\ContactBean.java"
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:3: package com.util
does not exist
import com.util.*;
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:33: cannot resolve s
ymbol
symbol : class PageBean
location: class com.wuxin.ContactBean
public PageBean listData(String page)throws Exception
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:16: cannot resolve s
ymbol
symbol : variable DatabaseConn
location: class com.wuxin.ContactBean
conn=DatabaseConn.getConnection();
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:37: cannot resolve s
ymbol
symbol : class PageBean
location: class com.wuxin.ContactBean
PageBean pageBean=new PageBean(this);
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:37: cannot resolve s
ymbol
symbol : class PageBean
location: class com.wuxin.ContactBean
PageBean pageBean=new PageBean(this);
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:62: cannot resolve s
ymbol
symbol : class pageBean
location: class com.wuxin.ContactBean
pageBean curPage=pageNum;
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactBean.java:63: cannot resolve s
ymbol
symbol : class pageBean
location: class com.wuxin.ContactBean
pageBean data=v;
^
7 errors
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes>javac "D:\Tomcat 5.0\webapps\ROOT\WEB
-INF\classes\ContactServlet.java"
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:3: package javax.
servlet.http does not exist
import javax.servlet.http.*;
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:6: package javax.
servlet.http does not exist
public class ContactServlet extends javax.servlet.http.HttpServlet
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:11: cannot resolv
e symbol
symbol : class HttpServletRequest
location: class com.wuxin.ContactServlet
public void doGet(HttpServletRequest request,HttpServletResponse respons
e)throws javax.servlet.ServletException,java.io.IOException
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:11: cannot resolv
e symbol
symbol : class HttpServletResponse
location: class com.wuxin.ContactServlet
public void doGet(HttpServletRequest request,HttpServletResponse respons
e)throws javax.servlet.ServletException,java.io.IOException
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:11: package javax
.servlet does not exist
public void doGet(HttpServletRequest request,HttpServletResponse respons
e)throws javax.servlet.ServletException,java.io.IOException
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:30: cannot resolv
e symbol
symbol : class HttpServletRequest
location: class com.wuxin.ContactServlet
public void doPost(HttpServletRequest request,HttpServletResponse respon
se)throws javax.servlet.ServletException,java.io.IOException
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:30: cannot resolv
e symbol
symbol : class HttpServletResponse
location: class com.wuxin.ContactServlet
public void doPost(HttpServletRequest request,HttpServletResponse respon
se)throws javax.servlet.ServletException,java.io.IOException
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:30: package javax
.servlet does not exist
public void doPost(HttpServletRequest request,HttpServletResponse respon
se)throws javax.servlet.ServletException,java.io.IOException
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:14: cannot resolv
e symbol
symbol : class PrintWriter
location: class com.wuxin.ContactServlet
PrintWriter out=response.getWriter();
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:17: cannot resolv
e symbol
symbol : class ContactBean
location: class com.wuxin.ContactServlet
ContactBean contact=new ContactBean();
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:17: cannot resolv
e symbol
symbol : class ContactBean
location: class com.wuxin.ContactServlet
ContactBean contact=new ContactBean();
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:18: cannot resolv
e symbol
symbol : class PageBean
location: class com.wuxin.ContactServlet
PageBean pageCtl=contact.listData((String)request.getPar
ameter("jumpPage"));
^
D:\Tomcat 5.0\webapps\ROOT\WEB-INF\classes\ContactServlet.java:27: package javax
.servlet does not exist
javax.servlet.RequestDispatcher dis=request.getRequestDispatcher
("/viewcontact");
^
13 errors
运行的时候出现这样的问题是什么原因阿
我的这个java程序是
package com.wuxin;
import javax.servlet.http.*;
import java.sql.*;
public class ContactServlet extends javax.servlet.http.HttpServlet
{
/**
***处理客户端产生的GET请求
**/
public void doGet(HttpServletRequest request,HttpServletResponse response)throws javax.servlet.ServletException,java.io.IOException
{
response.setContentType("text/html");
PrintWriter out=response.getWriter();
try
{
ContactBean contact=new ContactBean();
PageBean pageCtl=contact.listData((String)request.getParameter("jumpPage"));
//把PageBean保存在request中
request.setAttribute("pageCtl",pageCtl);
}
catch(Exception e)
{
e.printStackTrace();
}
//把试图派发到目的
javax.servlet.RequestDispatcher dis=request.getRequestDispatcher("/viewcontact");
dis.forward(request,response);
}
public void doPost(HttpServletRequest request,HttpServletResponse response)throws javax.servlet.ServletException,java.io.IOException
{
doGet(request,response);
}
}