HTTP Status 500 是什么错误？

[rjxianson]

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /login_in.jsp at line 10

7: <%@include file="inc/mhead.inc"%>
8: <%
9: String sid = request.getParameter("id");
10: int id = Integer.parseInt(sid);
11: String sql = "select * from memberslist where id=" + id + "";
12: Sql.dbconnection();
13: Sql.dbhandle(sql, 1);


Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:524)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:435)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


root cause

java.lang.NumberFormatException: null
java.lang.Integer.parseInt(Integer.java:415)
java.lang.Integer.parseInt(Integer.java:497)
org.apache.jsp.login_005fin_jsp._jspService(login_005fin_jsp.java:140)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


note The full stack trace of the root cause is available in the Apache Tomcat/6.0.13 logs.


--------------------------------------------------------------------------------

Apache Tomcat/6.0.13

各位大侠如何解救啊？

[wqkjj]

后台处理错误了

org.apache.jasper.JasperException: An exception occurred processing JSP page /login_in.jsp at line 10

9: String sid = request.getParameter("id");
10: int id = Integer.parseInt(sid);

java.lang.NumberFormatException: null
java.lang.Integer.parseInt(Integer.java:415)
--------------------------------------------------
说明你的输入参数id可能为空或者不是数字

[JavaNet的牛肉粉丝]

500 是服务器严重错误。看你的异常好像这个NumberFormatException数字格式化的时候异常了。
9: String sid = request.getParameter("id");
10: int id = Integer.parseInt(sid);
你的sid没有得到值，得到NULL,所以在转换成int的时候就异常了。

[yuchensuifeng]

可以参考楼上的，事实上，如果你传的id不是数字格式的，就会出这个错误，顺带问下，你这个是想搞报表麽？

[zhangyong200807]

500错误，也可能是你服务器配置有关。行了。在二楼的指导下，扑捉一下那个错误，看是不是还有报警。。是的话。

[古布]

向当前这个页面跳转的URL后面缺少id参数和值。

[e_d_z]

我也遇到这样一个问题，求大神指导！ HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: javax.servlet.ServletException: java.sql.SQLException: Invalid authorization specification, message from server: "Access denied for user 'javatest'@'localhost' (using password: YES)" org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:532) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:440) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) root cause javax.servlet.ServletException: java.sql.SQLException: Invalid authorization specification, message from server: "Access denied for user 'javatest'@'localhost' (using password: YES)" org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:915) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:844) org.apache.jsp.index_jsp._jspService(index_jsp.java:220) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) root cause java.sql.SQLException: Invalid authorization specification, message from server: "Access denied for user 'javatest'@'localhost' (using password: YES)" com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1977) com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1900) com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:2471) com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:813) com.mysql.jdbc.Connection.createNewIO(Connection.java:1771) com.mysql.jdbc.Connection.<init>(Connection.java:440) com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:400) java.sql.DriverManager.getConnection(Unknown Source) java.sql.DriverManager.getConnection(Unknown Source) org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(DefaultConnectionBuilder.java:39) org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:159) org.logicalcobwebs.proxool.ConnectionPool.getConnection(ConnectionPool.java:217) org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:89) java.sql.DriverManager.getConnection(Unknown Source) java.sql.DriverManager.getConnection(Unknown Source) wm.bean.DB.executeQuery(DB.java:23) wm.bean.page.getCount(page.java:45) wm.bean.page.myQuery(page.java:63) org.apache.jsp.index_jsp._jspService(index_jsp.java:105) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) note The full stack trace of the root cause is available in the Apache Tomcat/7.0.8 logs. Apache Tomcat/7.0.8