使用重写url mod时遇到问题
我的问题是在使用它时，我转到admincp的登录表单
输入用户名和密码后输入HTTP 500状态，但tomcat日志中没有堆栈跟踪???我的代码
struts.xml中
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="admincp" namespace="/admincp" extends="struts-default">
<interceptors>
<interceptor name="login" class="org.dejavu.software.interceptor.LoginInterceptor" />
<interceptor-stack name="stack-with-login">
<interceptor-ref name="login"/>
<interceptor-ref name="defaultStack"/>
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="stack-with-login"/>
<global-results>
<result name="login">login.jsp</result>
</global-results>
<action name="logincp" class="org.dejavu.software.view.AdminLoginAction">
<interceptor-ref name="defaultStack" />
<result name="success">dashboard.jsp</result>
<result name="input">login.jsp</result>
<result name="error">login.jsp</result>
</action>
</package>
</struts>
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>dejavuSoft</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>UrlRewriteFilter</filter-name>
<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
<init-param>
<param-name>logLevel</param-name>
<param-value>WARN</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>UrlRewriteFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>FORWARD</dispatcher>
<dispatcher>REQUEST</dispatcher>
</filter-mapping>
</web-app>
的Login.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html>
<html>
<head>
<title>Deja vu! | Login - Admin Control Panel</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="css/login.css" />
</head>
<body>
<img src="img/loginLogo.png" id="logo"/>
<s:actionerror/>
<s:form action="logincp">
<s:textfield name="username" value="username..." id="txtusername" onfocus="if(this.value==this.defaultValue) this.value='';" onblur="if(this.value=='') this.value=this.defaultValue;"/>
<s:password name="password" value="password..." id="txtpassword" onfocus="if(this.value==this.defaultValue) this.value='';" onblur="if(this.value=='') this.value=this.defaultValue;"/><br/>
<s:submit value="Enter Admin Panel" id="btLogin"/>
</s:form>
<img src="img/dejavu.png" id="icon"/>
<div id="forget">
Forget Password | Forget Username
</div>
</body>
<footer>
Footer
</footer>
</html>
登录操作
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package org.dejavu.software.view;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import java.util.Map;
import org.apache.struts2.interceptor.SessionAware;
import org.dejavu.software.dao.UserDAO;
import org.dejavu.software.model.GroupMember;
import org.dejavu.software.model.User;
/**
*
* @author Administrator
*/
public class AdminLoginAction extends ActionSupport {
private static final long serialVersionUID = -1457633455929689099L;
private User user;
private String username, password;
private String role;
private UserDAO userDAO;
private GroupMember group;
public AdminLoginAction() {
userDAO = new UserDAO();
}
@Override
public String execute() {
String result = null;
if (getUsername().length() != 0 && getPassword().length() != 0) {
setUser(userDAO.checkUsernamePassword(getUsername(), getPassword()));
if (getUser() != null) {
for (GroupMember g : getUser().getGroups()) {
boolean admincp = g.getAdminpermission().contains("1");
if (admincp == true) {
Map session = ActionContext.getContext().getSession();
session.put("userLogged", getUsername());
session.put("passwordLogged", getPassword());
result = "success";
} else {
result = "error";
}
}
}
}
return result;
}
@Override
public void validate() {
if (getUsername().length() == 0) {
addFieldError("username", "Username is required");
}
if (getPassword().length() == 0) {
addFieldError("password", getText("Password is required"));
}
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRole() {
return role;
}
public void setRole(String role) {
this.role = role;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public GroupMember getGroup() {
return group;
}
public void setGroup(GroupMember group) {
this.group = group;
}
}
网络错误：
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
org.apache.struts2.impl.StrutsActionProxy.getErrorMessage(StrutsActionProxy.java:69)
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:501)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:432)
org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:213)
org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:171)
org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.22 logs.