SpringMVC中的异常处理

这是个WebProject，用到的是spring-framework-3.1.1.RELEASE

首先是web.xml
[html] <?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
        <servlet-name>user</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>user</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <filter>
        <filter-name>SpringCharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>SpringCharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <welcome-file-list>
        <welcome-file>/WEB-INF/jsp/login.jsp</welcome-file>
    </welcome-file-list>
</web-app>

然后是SpringMVC的配置文件user-servlet.xml
[html]
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                        http://www.springframework.org/schema/mvc
                        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
                        http://www.springframework.org/schema/context
                        http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <context:component-scan base-package="com.jadyer"/>

    <mvc:annotation-driven/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

下面是用户登录页面//WEB-INF//jsp//login.jsp
[html]
<%@ page language="java" pageEncoding="UTF-8"%>
<form action="<%=request.getContextPath()%>/user/login" method="POST">
    username: <input type="text" name="username"/><br/>
    password: <input type="password" name="password"/><br/>
    <input type="submit" value="登录"/>
</form>

下面是用户登录失败页面//WEB-INF//jsp//error.jsp
[html]
<%@ page language="java" pageEncoding="UTF-8"%>
${myex.message}

下面是用户登录成功页面//WEB-INF//jsp//user//loginSuccess.jsp
[html]
<%@ page language="java" pageEncoding="UTF-8"%>
welcome: ${loginUser.nickname}

接下来是用到的实体类User.java
[java]
package com.jadyer.model;

/**
* User
* @author 宏宇
* @create May 12, 2012 1:24:43 AM
*/
public class User {
    private String username;
    private String nickname;
    private String password;
    private String email;
    /*==四个属性的getter()、setter()略==*/
    public User() {}
    public User(String username, String nickname, String password, String email) {
        this.username = username;
        this.nickname = nickname;
        this.password = password;
        this.email = email;
    }
}

然后是自定义的异常类UserException.java
[java]
package com.jadyer.exception;

/**
* UserException
* @author http://blog.csdn/net/jadyer
* @create May 12, 2012 6:43:29 PM
*/
@SuppressWarnings("serial")
public class UserException extends RuntimeException {
    public UserException() {
        super();
    }

    public UserException(String message, Throwable cause) {
        super(message, cause);
    }

    public UserException(

补充：软件开发 , Java ,