Struts2+Spring+Mybatis环境搭建

来源：互联网发布：java爬虫技术编辑：程序博客网时间：2024/05/18 00:26

1. 首先创建一个Dynamic Web Project，名为SSM_Example

在WEB_INF目录下创建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/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"          version="2.5">        <display-name>SSM_Example</display-name>        <welcome-file-list>        <welcome-file>login.jsp</welcome-file>    </welcome-file-list></web-app>

2. 把struts2所需的jar包放到工程的WEB-INF\lib目录下

所需的jar包有：

commons-fileupload-1.3.1.jarcommons-io-2.2.jarcommons-lang-2.4.jarcommons-lang3-3.1.jarcommons-logging-1.1.3.jarcommons-logging-api-1.1.jarfreemarker-2.3.19.jarjavassist-3.11.0.GA.jarognl-3.0.6.jarstruts2-core-2.3.16.3.jarxwork-core-2.3.16.3.jar

在src目录下创建struts.xml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>    <constant name="struts.devMode" value="true" />    <package name="default" namespace="/" extends="struts-default">        <action name="login" class="loginAction" method="execute">            <result name="success">/jsp/home.jsp</result>            <result name="error">login.jsp</result>        </action>    </package></struts>

在web.xml中添加如下代码

<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>

在WebContent根目录创建login.jsp

<%@ 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>Welcome to login page</title></head><body>    login page    <form action="login" method="post">        UserName<input type="text" name="userName"/><br/>        Password<input type="password" name="password"/><br/>        <input type="submit" value="login"/>    </form></body></html>

在WebContent目录下创建jsp文件夹，在文件夹里创建home.jsp

<%@ 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>Welcome to home page</title></head><body>    home page</body></html>

在src中创建com.ssm.action包，在包下创建LoginAction类，LoginAction类继承ActionSupport

package com.ssm.action;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import com.opensymphony.xwork2.ActionSupport;import com.ssm.dto.User;import com.ssm.service.ILoginService;@Controllerpublic class LoginAction extends ActionSupport {/** * serialVersionUID. */private static final long serialVersionUID = 1L;private String userName;private String password;public void setUserName(String userName) {this.userName = userName;}public void setPassword(String password) {this.password = password;}@Overridepublic String execute() throws Exception {return SUCCESS;}}

3. 配置Spring，把Spring的jar包放在lib目录下：

aopalliance-1.0.jar  spring-aop-3.0.2.RELEASE.jar  spring-beans-3.0.5.RELEASE.jar  spring-context-3.0.5.RELEASE.jar  spring-core-3.0.5.RELEASE.jar  spring-expression-3.0.5.RELEASE.jar  spring-jdbc-3.0.5.RELEASE.jar  spring-tx-3.0.5.RELEASE.jar  spring-web-3.0.5.RELEASE.jar  struts2-spring-plugin-2.3.16.3.jar

在WebContent下创建config/applicationContext.xml文件

<?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:aop="http://www.springframework.org/schema/aop"    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"    xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd     http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">    <!-- enable component scanning (beware that this does not enable mapper         scanning!) -->    <context:component-scan base-package="com.ssm.*" />    <!-- enable autowire -->    <context:annotation-config />    <!-- enable transaction demarcation with annotations -->    <tx:annotation-driven />    </beans>

在web.xml中添加

<listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>/config/applicationContext.xml</param-value>    </context-param>

在struts.xml中添加

<constant name="struts.objectFactory" value="spring"></constant>

4. 配置Mybatis，把所需的jar包放到lib目录下

commons-dbcp2-2.0.1.jarcommons-pool2-2.2.jarmybatis-3.2.6.jarmybatis-spring-1.2.2.jarmysql-connector-java-5.1.13.jar

创建com.ssm.dto包，并创建User.java，在mysql数据库中创建名为javadb的数据库，然后创建User表，对应User这个POJO类

package com.ssm.dto;public class User {private String userName;private String password;private int userType;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;}public int getUserType() {return userType;}public void setUserType(int userType) {this.userType = userType;}}

创建com.ssm.dao包，并创建UserMapper.java

package com.ssm.dao;import com.ssm.dto.User;public interface UserMapper {User getUser(String userName);}

在com.ssm.dao目录下创建同名的UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.ssm.dao.UserMapper">    <select id="getUser" parameterType="String" resultType="User">        select *        from user where username = #{userName}    </select></mapper>

在applicationContext.xml中添加如下内容

<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource"        destroy-method="close">        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>        <property name="url" value="jdbc:mysql://localhost:3306/javadb"></property>        <property name="username" value="root"></property>        <property name="password" value=""></property>    </bean>    <!-- transaction manager, use JtaTransactionManager for global tx -->    <bean id="transactionManager"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource" />    </bean>    <!-- define the SqlSessionFactory -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource" />        <property name="typeAliasesPackage" value="com.ssm.dto" />    </bean>    <!-- scan for mappers and let them be autowired -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.ssm.dao" />    </bean>

创建com.ssm.service包，并创建ILoginService接口

package com.ssm.service;import com.ssm.dto.User;public interface ILoginService {User Login(String userName);}

在com.ssm.service目录下创建实现ILoginService的类LoginServiceImpl.java

package com.ssm.service;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import com.ssm.dao.UserMapper;import com.ssm.dto.User;@Servicepublic class LoginServiceImpl implements ILoginService {@AutowiredUserMapper userMapper;@Overridepublic User Login(String userName) {return userMapper.getUser(userName);}}

然后在LoginAction中添加如下代码

@AutowiredILoginService loginServiceImpl;@Overridepublic String execute() throws Exception {User user = loginServiceImpl.Login(userName);if(null != user){if(user.getPassword().equals(password)){return SUCCESS;}else{return ERROR;}}else{return ERROR;}}

到这里项目创建完毕，接下来运行程序，在浏览器中访问http://localhost:8089/SSM_Example/

在页面中输入正确的UserName和Password就能访问到home page页面，否则页面不跳转。

5. 项目创建的目录结构如下

0 0