struts2整合spring实现拦截器

Struts 2框架整合Spring很简单
1.首先确定所需的包



2.WEB-INF目录下建立web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" 
	xmlns="http://java.sun.com/xml/ns/j2ee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
	http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<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>
	</filter-mapping>
	<listener>
	   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

3.建立struts2的action等类LoginAction.java

package com.struts2test;

import service.LoginService;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport {
	private String username;
	private String password;
	private LoginService loginService;
	public void setLoginService(LoginService loginService) {
		this.loginService = loginService;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return password;
	}
	public void setPassword(String password) {
		this.password = password;
	}

	/**
	 * 默认执行execute方法
	 */
	public String execute() throws Exception {
		if (loginService.isLogin(username, password)) {
			return SUCCESS;
		} else {
			ActionContext.getContext().put("errorMess", "失败了！");
			return INPUT;
		}
	}
}

自定义struts2的拦截器MyInterceptor.java

package com.struts2test;

import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;

public class MyInterceptor implements Interceptor {

	private static final long serialVersionUID = 1L;

	public void destroy() {

	}

	public void init() {
	}

	public String intercept(ActionInvocation invocation) throws Exception {
		System.out.println("进入Action前执行");
		// 执行目标方法 (调用下一个拦截器, 或执行Action)
		final String res = invocation.invoke();
		System.out.println("进入Action后执行");
		return res;
	}
}

登录表单的验证xml，LoginAction-validation.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE validators PUBLIC 
"-//OpenSymphony Group//XWork Validator 1.0.2//EN" 
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
    <field name="username">
        <field-validator type="requiredstring">
            <message>请输入用户名</message>
        </field-validator>
    </field>

    <field name="password">
        <field-validator type="requiredstring">
            <message>请输入密码</message>
        </field-validator>
        <field-validator type="stringlength">
            <param name="minLength">6</param>
            <param name="maxLength">10</param>
            <message>密码长度只能在3 和 10 之间.</message>
        </field-validator>
    </field>
</validators>

接下来，列出处理登录业务逻辑的接口和实现类。
LoginService.java

package service;

public interface LoginService {
	public boolean isLogin(String username,String password);
}

5.LoginServiceImpl.java

package service.impl;

import service.LoginService;

public class LoginServiceImpl implements LoginService {

	public boolean isLogin(String username, String password) {
		if("admin".equalsIgnoreCase(username)&&"123456".equalsIgnoreCase(password))
		{
			return true;
		}
		return false;
	}

}

src目录下建立struts.xml和struts.properties文件

<?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="mldn" namespace="" extends="struts-default">
<interceptors>
	<interceptor name="MyInterceptor" class="com.struts2test.MyInterceptor"></interceptor>
	<interceptor-stack name="myInterceptorStack">
		<interceptor-ref name="MyInterceptor"/>
		<interceptor-ref name="defaultStack"/>
	</interceptor-stack>
</interceptors>
	
		<action name="login">
		   <result name="success">/login.jsp</result>
		</action>
		
		<action name="checklogin" class="com.struts2test.LoginAction">
		   <result name="success">/success.jsp</result>
		   <result name="input">/login.jsp</result>
		   <interceptor-ref name="myInterceptorStack"></interceptor-ref>
		</action>
	</package>
</struts>

struts.properties

struts.action.extension=action
struts.tag.altSyntax=true
struts.devMode=true
struts.ui.theme=simple
struts.ui.templateDir=WEB-INF/d_template

WEB-INF/d_template是我将struts-core*中的template解出来，然后放到项目的WEB-INF下,在struts.properties中重新修改了simple下的fielderror.ftl文件，将该文件中的 <li>和 </li>删除了。
WEB-INF下增加applicationContext.xml，用来定义spring的注入类。

<?xml version="1.0" encoding="UTF-8"?>
<beans
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

<bean id="loginService" class="service.impl.LoginServiceImpl"/></beans>

定义web页面login.jsp

<%@ page language="java" pageEncoding="UTF-8" isELIgnored="false"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
  <head>
    <title>登录系统</title>
  </head>
  <body>
  		<h2>登录系统   ${errorMess}</h2>
  		<hr>
  	  	<form action="checklogin.action" method="post">
  	  		用户名：<input type="text" name="username">
  	  		<s:fielderror cssStyle="color: red">
  	  		  <s:param>username</s:param>
            </s:fielderror><br>
  	  		密  码：<input type="text" name="password" >
  	  		<s:fielderror cssStyle="color: red">
  	  		  <s:param>password</s:param>
            </s:fielderror><br>
  	  		<input type="submit" value="发送">
  	  	</form>
  	  	<s:fielderror cssStyle="color: red"></s:fielderror>
  </body>
</html>

大概就是如此了，附件为完整文件。

评论

2 楼 lz958942 2014-05-27  

您的是无用功

1 楼 qing878 2010-11-17  

  你这和SPRING有关系么 ···· 一堆 ╮(╯▽╰)╭