struts2 + spring3 + mybatis3

1. 框架下载

struts2: http://struts.apache.org/ 下载 struts-2.3.14-all.zip

spring3: http://www.springsource.org/spring-framework 下载 spring-framework-3.2.2-dist.zip

mybatis3: http://code.google.com/p/mybatis/ 下载 mybatis-3.2.2.zip 和 mybatis-spring-1.2.0-bundle.zip

2. 建示例工程

在Eclipse中新建示例工程，步骤就不详述了，我把工程取名为ssm_example。

3. struts2配置

3.1 src下创建struts.xml配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <!DOCTYPE struts PUBLIC
  3. "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
  4. "http://struts.apache.org/dtds/struts-2.0.dtd">
  5. <struts>
  6. <constant name="struts.devMode" value="true" />
  7. <package name="basic" extends="struts-default">
  8. <action name="index" class="cn.ssm.sample.action.IndexAction" method="execute">
  9. <result name="success">/WEB-INF/jsp/Index.jsp</result>
  10. </action>
  11. </package>
  12. </struts>
<?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="basic" extends="struts-default">

		<action name="index" class="cn.ssm.sample.action.IndexAction" method="execute">

			<result name="success">/WEB-INF/jsp/Index.jsp</result>

		</action>

	</package>

</struts>

3.2 修改web.xml

  1. <filter>
  2. <filter-name>struts2</filter-name>
  3. <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  4. </filter>
  5. <filter-mapping>
  6. <filter-name>struts2</filter-name>
  7. <url-pattern>/*</url-pattern>
  8. </filter-mapping>
<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>

3.3 从解压的struts-2.3.14-all的lib文件夹下，挑选了必须的和比较常用的jar包，放入WEB-INF/lib的文件夹下

  1. commons-fileupload-1.2.2.jar
  2. commons-io-2.0.1.jar
  3. commons-lang-2.4.jar
  4. commons-lang3-3.1.jar
  5. commons-logging-1.1.1.jar
  6. commons-logging-api-1.1.jar
  7. freemarker-2.3.19.jar
  8. javassist-3.11.0.GA.jar
  9. ognl-3.0.6.jar
  10. struts2-core-2.3.14.jar
  11. xwork-core-2.3.14.jar
commons-fileupload-1.2.2.jar

commons-io-2.0.1.jar

commons-lang-2.4.jar

commons-lang3-3.1.jar

commons-logging-1.1.1.jar

commons-logging-api-1.1.jar

freemarker-2.3.19.jar

javassist-3.11.0.GA.jar

ognl-3.0.6.jar

struts2-core-2.3.14.jar

xwork-core-2.3.14.jar

3.4 建个测试用的IndexAction.java和Index.jsp

  1. package cn.ssm.sample.action;
  2. import com.opensymphony.xwork2.ActionSupport;
  3. public class IndexAction extends ActionSupport{
  4. @Override
  5. public String execute() throws Exception {
  6. // TODO Auto-generated method stub
  7. return super.execute();
  8. }
  9. }
package cn.ssm.sample.action;

import com.opensymphony.xwork2.ActionSupport;

public class IndexAction extends ActionSupport{

	@Override

	public String execute() throws Exception {

		// TODO Auto-generated method stub

		return super.execute();

	}

}
  1. <%@ page language="java" contentType="text/html; charset=UTF-8"
  2. pageEncoding="UTF-8"%>
  3. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  4. <html>
  5. <head>
  6. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  7. <title>Insert title here</title>
  8. </head>
  9. <body>
  10. Hello world!
  11. </body>
  12. </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>

	Hello world!

</body>

</html>

3.5 测试struts2

运行服务，在浏览器输入http://localhost:8080/ssm_example/index，如果配置没有错误，那么会出现Hello world！

4. spring3配置

4.1 config/spring下创建applicationContext.xml配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
  4. xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
  5. xmlns:context="http://www.springframework.org/schema/context"
  6. xsi:schemaLocation="
  7. http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
  8. http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
  9. http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
  10. http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
  11. http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
  12. <!-- enable component scanning (beware that this does not enable mapper
  13. scanning!) -->
  14. <context:component-scan
  15. base-package="cn.ssm.sample.action,cn.ssm.sample.service" />
  16. <!-- enable autowire -->
  17. <context:annotation-config />
  18. <!-- enable transaction demarcation with annotations -->
  19. <tx:annotation-driven />
  20. </beans>
<?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="cn.ssm.sample.action,cn.ssm.sample.service" />

	<!-- enable autowire -->

	<context:annotation-config />

	<!-- enable transaction demarcation with annotations -->

	<tx:annotation-driven />

</beans>

4.2 修改web.xml

  1. <listener>
  2. <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  3. </listener>
  4. <context-param>
  5. <param-name>contextConfigLocation</param-name>
  6. <param-value>/WEB-INF/classes/applicationContext.xml
  7. </param-value>
  8. </context-param>
	<listener>

		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

	</listener>

	<context-param>

		<param-name>contextConfigLocation</param-name>

		<param-value>/WEB-INF/classes/applicationContext.xml

        </param-value>

	</context-param>

4.3 添加相关jar包

  1. aopalliance-1.0.jar
  2. spring-aop-3.2.2.RELEASE.jar
  3. spring-beans-3.2.2.RELEASE.jar
  4. spring-context-3.2.2.RELEASE.jar
  5. spring-core-3.2.2.RELEASE.jar
  6. spring-expression-3.2.2.RELEASE.jar
  7. spring-jdbc-3.2.2.RELEASE.jar
  8. spring-tx-3.2.2.RELEASE.jar
  9. spring-web-3.2.2.RELEASE.jar
  10. struts2-spring-plugin-2.3.14.jar
aopalliance-1.0.jar

spring-aop-3.2.2.RELEASE.jar

spring-beans-3.2.2.RELEASE.jar

spring-context-3.2.2.RELEASE.jar

spring-core-3.2.2.RELEASE.jar

spring-expression-3.2.2.RELEASE.jar

spring-jdbc-3.2.2.RELEASE.jar

spring-tx-3.2.2.RELEASE.jar

spring-web-3.2.2.RELEASE.jar

struts2-spring-plugin-2.3.14.jar

4.4 修改struts.xml文件

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

并且把class="cn.ssm.sample.action.IndexAction"改成class="indexAction"

4.5 修改Action

在IndexAction的类上，加上@Controller，这样Spring就能自动实例化成indexAction对象了。

4.6 测试spring

运行服务，在浏览器输入http://localhost:8080/ssm_example/index，如果配置没有错误，那么依然会出现Hello world！

5. mybatis3配置

5.1 数据库准备

这里采用mysql，下面的sql文来运行。

  1. CREATE SCHEMA `ssmsample` DEFAULT CHARACTER SET utf8 ;
  2. CREATE  TABLE `ssmsample`.`user` (`id` INT NOT NULL AUTO_INCREMENT, `name` VARCHAR(45) NULL, PRIMARY KEY('id') );
  3. INSERT INTO `ssmsample`.`user` (`id`,`name`) VALUES (1,'Ethan');
CREATE SCHEMA `ssmsample` DEFAULT CHARACTER SET utf8 ;

CREATE  TABLE `ssmsample`.`user` (`id` INT NOT NULL AUTO_INCREMENT, `name` VARCHAR(45) NULL, PRIMARY KEY('id') );

INSERT INTO `ssmsample`.`user` (`id`,`name`) VALUES (1,'Ethan');

5.2 修改applicationContext.xml

  1. <!-- 数据源配置 -->
  2. <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
  3. destroy-method="close">
  4. <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
  5. <property name="url"
  6. value="jdbc:mysql://localhost:3306/ssmsample?useUnicode=true&characterEncoding=utf8"></property>
  7. <property name="username" value="root"></property>
  8. <property name="password" value="admin"></property>
  9. </bean>
  10. <!-- transaction manager, use JtaTransactionManager for global tx -->
  11. <bean id="transactionManager"
  12. class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  13. <property name="dataSource" ref="dataSource" />
  14. </bean>
  15. <!-- define the SqlSessionFactory -->
  16. <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  17. <property name="dataSource" ref="dataSource" />
  18. <property name="typeAliasesPackage" value="cn.ssm.sample.dto" />
  19. </bean>
  20. <!-- scan for mappers and let them be autowired -->
  21. <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  22. <property name="basePackage" value="cn.ssm.sample.dao" />
  23. </bean>
	<!-- 数据源配置 -->

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"

		destroy-method="close">

		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>

		<property name="url"

			value="jdbc:mysql://localhost:3306/ssmsample?useUnicode=true&characterEncoding=utf8"></property>

		<property name="username" value="root"></property>

		<property name="password" value="admin"></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="cn.ssm.sample.dto" />

    </bean>

    <!-- scan for mappers and let them be autowired -->

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="cn.ssm.sample.dao" />

    </bean>

5.3 创建和修改相关类

UserMapper.java

  1. package cn.ssm.sample.dao;
  2. import cn.ssm.sample.dto.User;
  3. public interface UserMapper {
  4. User getUser(int id);
  5. }
package cn.ssm.sample.dao;

import cn.ssm.sample.dto.User;

public interface UserMapper {

	User getUser(int id);

}

UserMapper.xml（和UserMapper.java同目录）

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  3. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  4. <mapper namespace="cn.ssm.sample.dao.UserMapper">
  5. <select id="getUser" parameterType="int" resultType="User">
  6. SELECT *
  7. From user where id = #{id}
  8. </select>
  9. </mapper>
<?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="cn.ssm.sample.dao.UserMapper">

	<select id="getUser" parameterType="int" resultType="User">

		SELECT *

		From user where id = #{id}

	</select>

</mapper>

User.java

  1. package cn.ssm.sample.dto;
  2. public class User {
  3. int id;
  4. String name;
  5. public int getId() {
  6. return id;
  7. }
  8. public void setId(int id) {
  9. this.id = id;
  10. }
  11. public String getName() {
  12. return name;
  13. }
  14. public void setName(String name) {
  15. this.name = name;
  16. }
  17. }
package cn.ssm.sample.dto;

public class User {

	int id;

	String name;

	public int getId() {

		return id;

	}

	public void setId(int id) {

		this.id = id;

	}

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

}

IndexSvr.java

  1. package cn.ssm.sample.service;
  2. import org.springframework.beans.factory.annotation.Autowired;
  3. import org.springframework.stereotype.Service;
  4. import cn.ssm.sample.dao.UserMapper;
  5. import cn.ssm.sample.dto.User;
  6. @Service
  7. public class IndexSvr {
  8. @Autowired
  9. UserMapper userMapper;
  10. public User getUser(int id) {
  11. return userMapper.getUser(id);
  12. }
  13. }
package cn.ssm.sample.service;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import cn.ssm.sample.dao.UserMapper;

import cn.ssm.sample.dto.User;

@Service

public class IndexSvr {

	@Autowired

	UserMapper userMapper;

	public User getUser(int id) {

		return userMapper.getUser(id);

	}

}

IndexAction.java

  1. package cn.ssm.sample.action;
  2. import org.springframework.beans.factory.annotation.Autowired;
  3. import org.springframework.stereotype.Controller;
  4. import cn.ssm.sample.dto.User;
  5. import cn.ssm.sample.service.IndexSvr;
  6. import com.opensymphony.xwork2.ActionSupport;
  7. @Controller
  8. public class IndexAction extends ActionSupport{
  9. private User user;
  10. public User getUser() {
  11. return user;
  12. }
  13. public void setUser(User user) {
  14. this.user = user;
  15. }
  16. @Autowired
  17. IndexSvr indexSvr;
  18. @Override
  19. public String execute() throws Exception {
  20. user = indexSvr.getUser(1);
  21. return super.execute();
  22. }
  23. }
package cn.ssm.sample.action;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import cn.ssm.sample.dto.User;

import cn.ssm.sample.service.IndexSvr;

import com.opensymphony.xwork2.ActionSupport;

@Controller

public class IndexAction extends ActionSupport{

	private User user;

	public User getUser() {

		return user;

	}

	public void setUser(User user) {

		this.user = user;

	}

	@Autowired

	IndexSvr indexSvr;

	@Override

	public String execute() throws Exception {

		user = indexSvr.getUser(1);

		return super.execute();

	}

}

index.jsp

  1. <%@ page language="java" contentType="text/html; charset=UTF-8"
  2. pageEncoding="UTF-8"%>
  3. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  4. <html>
  5. <head>
  6. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  7. <title>Insert title here</title>
  8. </head>
  9. <body>
  10. Hello world! ${user.name }
  11. </body>
  12. </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>

	Hello world! ${user.name }

</body>

</html>

5.4 添加jar包

  1. commons-dbcp-1.4.jar
  2. commons-pool-1.6.jar
  3. mybatis-3.2.2.jar
  4. mybatis-spring-1.2.0.jar
  5. mysql-connector-java-5.1.13-bin.jar
commons-dbcp-1.4.jar

commons-pool-1.6.jar

mybatis-3.2.2.jar

mybatis-spring-1.2.0.jar

mysql-connector-java-5.1.13-bin.jar

5.5 测试ssm

运行服务，在浏览器输入http://localhost:8080/ssm_example/index，如果配置没有错误，那么依然会出现Hello world！Ethan

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