Spring与Struts整合——让Spring管理控制器

川长思鸟来 2021-07-24 21:49 228阅读 0赞

**一 Web配置**

<?xml version="1.0" encoding="GBK"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
        http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
        
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener
            </listener-class>
        </listener>
        
        <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>

**二 applicationContext.xml配置**

<?xml version="1.0" encoding="GBK"?>
    <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://www.springframework.org/schema/beans"
        xmlns:p="http://www.springframework.org/schema/p"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
        
        <bean id="myService"
            class="org.crazyit.app.service.impl.MyServiceImpl"/>
        
        <bean id="loginAction" class="org.crazyit.app.action.LoginAction"
            scope="prototype" p:ms-ref="myService"/>
    </beans>

**三 视图**

1 loginForm.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="login">
        <s:textfield name="username" label="用户名"/>
        <s:textfield name="password" label="密码"/>
        <tr align="center">
            <td colspan="2">
            <s:submit value="登录" theme="simple"/>
            <s:reset value="重设" theme="simple"/>
            </td>
        </tr>
    </s:form>
    </body>
    </html>

2 welcome.jsp

3 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>

**四 Struts配置**

<?xml version="1.0" encoding="GBK"?>
    
    <!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.i18n.encoding" value="GBK"/>
        <constant name="struts.devMode" value="true"/>
        <constant name="struts.enable.DynamicMethodInvocation" value="false"/>
        <package name="lee" extends="struts-default">
            
            <action name="login" class="loginAction">
                
                <result name="error">/WEB-INF/content/error.jsp</result>
                <result>/WEB-INF/content/welcome.jsp</result>
            </action>
            
            <action name="*">
                <result>/WEB-INF/content/{1}.jsp</result>
            </action>
        </package>
    </struts>

**五 action**

package org.crazyit.app.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    import org.crazyit.app.service.*;
    
    public class LoginAction extends ActionSupport
    {
        // 下面是用于封装用户请求参数的两个成员变量
        private String username;
        private String password;
        // 系统所用的业务逻辑组件
        private MyService ms;
        // 设值注入业务逻辑组件所必需的setter方法
        public void setMs(MyService ms)
        {
            this.ms = ms;
        }
        // username的setter和getter方法
        public void setUsername(String username)
        {
            this.username = username;
        }
        public String getUsername()
        {
            return this.username;
        }
        // password的setter和getter方法
        public void setPassword(String password)
        {
            this.password = password;
        }
        public String getPassword()
        {
            return this.password;
        }
    
    
        // 处理用户请求的execute方法
        public String execute() throws Exception
        {
            // 调用业务逻辑组件的validLogin()方法
            // 验证用户输入的用户名和密码是否正确
            if (ms.validLogin(getUsername(), getPassword()) > 0)
            {
                addActionMessage("哈哈，整合成功！");
                return SUCCESS;
            }
            return ERROR;
        }
    }

**六 Service**

1 接口

package org.crazyit.app.service;
    
    public interface MyService
    {
        int validLogin(String username , String pass);
    }

2 实现类

package org.crazyit.app.service.impl;
    
    import org.crazyit.app.service.*;
    
    public class MyServiceImpl implements MyService
    {
        public int validLogin(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("crazyit.org")
                && pass.equals("leegang") )
            {
                return 99;
            }
            return -1;
        }
    }

**七 测试**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/d53796b612504c17aadde6d835f2cc27.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70 1]: /images/20210724/1205765480df488591b1ac42b43f5f85.png