Spring整合Struts2(1)
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Spring整合Struts2的步骤
1、先配置运行一个Struts2工程。
* 拷贝相关jar包到lib目录下
* 拷贝struts.xml到src目录下
* 在web.xml中加入Struts2的拦截器
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
2、配置Spring:
* 相关jar包拷贝到lib目录下。
* 在src目录下创建Spring的配置文件:bean.xml
* 在web.xml文件中加入ContextLoaderListener,用来创建Spring容器:
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:bean.xml</param-value>
</context-param>
<!-- 使用ContextLoaderListener初始化Spring容器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
3、Struts2和Spring的整合
* 把struts2-spring-plugin-2.2.3.1.jar拷贝到lib路径下
* 把Struts2的Action的创建交给Spring
* 在Struts2的配置文件中配置Action时,class属性指定为Spring中生成的Action的bean ID。
注意:必须配置Struts2的Action的scope为prototype
具体的实例如下:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="login">
用户名:<input type="text" name="username"> <br/>
密 码:<input type="text" name="password"> <br/>
<input type="submit" value="提交"> <input type="reset" value="重置"> <br/>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<a href="login.jsp">登陆页面</a> <br/>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
登陆成功!<br/>
你的用户名是${username },密码是${password }.
</body>
</html>
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/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>ss</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:bean.xml</param-value>
</context-param>
<!-- 使用ContextLoaderListener初始化Spring容器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<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>
</web-app>
package cn.hnpi.lis.action;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private String username;
private String password;
public String login(){
if(username == null || password == null ||
username.trim().equals("") || password.trim().equals("")){
return LOGIN;
}else{
return SUCCESS;
}
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}
bean.xml
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
">
<!-- 由Spring生成Struts2的Action -->
<bean id="loginAction" class="cn.hnpi.lis.action.LoginAction" scope="prototype"></bean>
</beans>
<?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>
<constant name="struts.devMode" value="false" />
<constant name="struts.i18n.encoding" value="UTF-8" />
<package name="default" namespace="/" extends="struts-default">
<!-- 没有Spring时的配置方式
<action name="login" class="cn.hnpi.lis.action.LoginAction" method="login">
<result name="success">login_success.jsp</result>
<result name="login">login.jsp</result>
</action>
-->
<!-- 由Spring创建Action -->
<action name="login" class="loginAction" method="login">
<result name="success">login_success.jsp</result>
<result name="login">login.jsp</result>
</action>
</package>
</struts>
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