2014-08-08
学习李刚老师的j2ee整合struts2+spring3
JAR包链接
http://download.csdn.net/detail/u010393809/7732235
项目outline
1.引入JAR包，上面已经贴了JAR包下载链接
2.配置Struts2，只需要引入struts2必需的那几个包，此时暂时不要引入struts2-spring-plugin-2.2.1.jar，不然会抛出javaPointerNull的异常
配置web.xml;
配置struts.xml
<struts>
<constant name="struts.configuration.xml.reload" value="true"/>
<package name="admin" namespace="/admin" extends="struts-default" >
<action name="hello">
<result>/index.jsp</result>
</action>
</package>
</struts>
地址栏输入http://localhost:8080/SSH/admin/hello可以访问index.jsp，可知Struts2的包没有问题，能完成正常功能
下面开始整合Struts2+Spring3
1.将剩下的JAR包全部引入
2.1./content/login.jsp
<%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %> <%@taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>登录页面</title> </head> <body> <h3>用户登录</h3> <s:form action="loginPro"> <s:textfield name="username" label="用户名"/><br/> <s:textfield name="password" label="密码"/><br/> <s:submit value="登录" theme="simple"/> <s:reset value="重设" theme="simple"/> </s:form> </body> </html>
2.2./content/welcome.jsp
<%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %> <%@taglib prefix="s" uri="/struts-tags"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>成功页面</title> </head> <body> 您已经登录! <s:property value="tip"/> </body> </html>
2.3./content/error.jsp
<%@ page contentType="text/html; charset=GBK" language="java" errorPage="" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>错误页面</title> </head> <body> 您不能登录! </body> </html>
3.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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_3_0.xsd" version="3.0">
<!-- 初始化
<context-param>
<param-name>contextConfigLocation</param-name> -->
<!-- 如果有多个文件，在文件之间用英文逗号隔开 -->
<!-- <param-value>/WEB-INF/applicationContext.xml,/WEB-INF/applicationContext-db.xml
</param-value> -->
<!-- <param-value>/WEB-INF/applicationContext.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>
<!-- Struts2的常规web.xml配置 -->
<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>
</web-app>
4.org.crazyit.app.action/LoginAction.java
package org.crazyit.app.action;
import com.opensymphony.xwork2.Action;
import org.crazyit.app.service.*;
public class LoginAction
implements Action
{
//下面是用于封装用户请求参数的两个属性
private String username;
private String password;
//用于封装处理结果的属性
private String tip;
//系统所用的业务逻辑组件
private MyService ms;
//设置注入业务逻辑组件所必需的setter方法
public void setMs(MyService ms)
{
this.ms = ms;
}
//username属性的setter和getter方法
public void setUsername(String username)
{
this.username = username;
}
public String getUsername()
{
return this.username;
}
//password属性所必需的setter和getter方法
public void setPassword(String password)
{
this.password = password;
}
public String getPassword()
{
return this.password;
}
//tip属性的getter和setter方法
public void setTip(String tip)
{
this.tip = tip;
}
public String getTip()
{
return this.tip;
}
//处理用户请求的execute方法
public String execute() throws Exception
{
//调用业务逻辑组件的valid方法来
//验证用户输入的用户名和密码是否正确
if (ms.valid(getUsername(), getPassword()))
{
setTip("哈哈，整合成功！");
return SUCCESS;
}
else
{
return ERROR;
}
}
}
5.org.crazyit.app.service.MyService.java
package org.crazyit.app.service;
public interface MyService
{
boolean valid(String username , String pass);
}
6.org.crazyit.app.service.impl.MyServiceImpl.java
package org.crazyit.app.service.impl;
import org.crazyit.app.service.*;
public class MyServiceImpl
implements MyService
{
public boolean valid(String username , String pass)
{
//此处只是简单示范，故直接判断用户名、密码
//是否符合要求
if ( username.equals("hzm")
&& pass.equals("123456") )
{
return true;
}
return false;
}
}
7.struts.xml
<?xml version="1.0" encoding="GBK"?>
<!-- 指定Struts 2配置文件的DTD信息 -->
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<!-- Struts 2配置文件的根元素 -->
<struts>
<!-- 配置了系列常量 -->
<constant name="struts.i18n.encoding" value="GBK"/>
<constant name="struts.devMode" value="true"/>
<package name="lee" extends="struts-default">
<!-- 定义处理用户请求的Action，该Action的class属性不是实际处理类
, 而是Spring容器中的Bean实例-->
<action name="loginPro" class="loginAction">
<!-- 为两个逻辑视图配置视图页面 -->
<result name="error">/content/error.jsp</result>
<result name="success">/content/welcome.jsp</result>
</action>
<!-- 让用户直接访问该应用时列出所有视图页面 -->
<action name="*">
<result>/content/{1}.jsp</result>
</action>
</package>
</struts>
8.applicationContext.xml
<?xml version="1.0" encoding="GBK"?> <!-- Spring配置文件的根元素，使用spring-beans-3.0.xsd语义约束 --> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <!-- 定义一个业务逻辑组件，实现类为MyServiceImp --> <bean id="myService" class="org.crazyit.app.service.impl.MyServiceImpl"/> <!-- 让Spring管理的Action实例 --> <bean id="loginAction" class="org.crazyit.app.action.LoginAction" scope="prototype"> <!-- 依赖注入业务逻辑组件 --> <property name="ms" ref="myService"/> </bean> </beans>
输入http://localhost:8080/SSH/login，进入登录页面
根据逻辑判断，将跳转到/welcome.jsp或者/error.jsp
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