注:spring的作用就是实例化bean,整合struts实际上就是使用spring管理action类的过程。
1、导入jar包
导入struts和spring的jar,struts还需要一个struts2-spring-plugin-2.3.4.1.jar。
2、web.xml
需要配置struts和spring。
<?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>spring_struts2</display-name> <!-- 指定spring的配置文件,默认从web根目录寻找配置文件,我们可以通过spring提供的classpath:前缀指定从类路径下寻找 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 对Spring容器进行实例化 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置sturts2 --> <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> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
3、struts.xml
action的class不是bean类本身,而是spring的bean的id名称
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.devMode" value="true" /> <package name="ru" namespace="/" extends="struts-default"> <default-action-ref name="index" /> <global-results> <result name="error">/error.jsp</result> </global-results> <action name="login" class="loginaction"> <result name="sucess"> /jsp/logsucess.jsp </result> <result name="error"> /jsp/logerror.jsp </result> </action> </package> </struts>
4、LoginAction.java(action类)
里面的对象属性由spring负责实例化。
package com.ru.action; import com.opensymphony.xwork2.ActionSupport; import com.ru.service.UserCheck; public class LoginAction extends ActionSupport { private String username; private String password; private UserCheck uc; public void setUc(UserCheck uc) { this.uc = uc; } public void setUsername(String username) { this.username = username; } public void setPassword(String password) { this.password = password; } @Override public String execute() throws Exception { if(uc.result(username, password)=="sucess"){ return "sucess"; }else{ return "error"; } } }
5、UserCheck.java(这个是业务逻辑层的判断代码)
package com.ru.service; public class UserCheck { public String result(String username,String password){ if("ru".equals(username)&&"123".equals(password)){ return "sucess"; }else{ return "error"; } } }
6、applicationContext.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <!-- services --> <!-- 配置一个业务逻辑bean --> <bean id="usercheck" class="com.ru.service.UserCheck"/> <!-- 配置一个action --> <bean id="loginaction" class="com.ru.action.LoginAction"> <property name="uc" ref="usercheck"/> </bean> </beans>
7、login.jsp
注意的是:action实现的是重定向,说以需要完整访问路径,这里使用<base href="<%=basePath%>">,获取完整路径
- <%@pagelanguage="java"contentType="text/html;charset=UTF-8"
- pageEncoding="UTF-8"%>
- <%@tagliburi="/struts-tags"prefix="s"%>
- <%
- Stringpath=request.getContextPath();
- StringbasePath=request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
- %>
- <!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
- <basehref="<%=basePath%>">
- <metahttp-equiv="Content-Type"content="text/html;charset=UTF-8">
- <title>Inserttitlehere</title>
- </head>
- <body>
- <!--使用struts标签创建一个表单-->
- <s:formaction="login"method="post">
- <s:textfieldkey="用户名"name="username"></s:textfield>
- <s:passwordkey="密 码"name="password"></s:password>
- <s:submitvalue="登录"></s:submit>
- </s:form>
- </body>
- </html>