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1、配置h2，连接池，MyBatis Maven依赖；
<!-- spring与数据库访问集成（非Hibernate） --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.1.4.RELEASE</version> </dependency> <!-- h2数据库核心包 --> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <version>1.4.189</version> </dependency> <!-- 添加druid连接池包 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.12</version> </dependency> <!-- 添加mybatis的核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.8</version> </dependency> <!-- 添加mybatis与Spring整合的核心包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency>
2、spring.xml中增加连接池配置；
<!-- 引入属性文件,config.properties位于src/main/resources目录下 --> <context:property-placeholder location="classpath:config.properties"/> <!-- ========================================配置数据源========================================= --> <!-- 配置数据源，使用的是alibaba的Druid(德鲁伊)数据源 --> <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <property name="url" value="${jdbc_url}" /> <property name="username" value="${jdbc_username}" /> <property name="password" value="${jdbc_password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="0" /> <!-- 连接池最大使用连接数量 --> <property name="maxActive" value="20" /> <!-- 连接池最大空闲 --> <property name="maxIdle" value="20" /> <!-- 连接池最小空闲 --> <property name="minIdle" value="0" /> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="60000" /> <!-- <property name="poolPreparedStatements" value="true" /> <property name="maxPoolPreparedStatementPerConnectionSize" value="33" /> --> <property name="validationQuery" value="${validationQuery}" /> <property name="testOnBorrow" value="false" /> <property name="testOnReturn" value="false" /> <property name="testWhileIdle" value="true" /> <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 --> <property name="timeBetweenEvictionRunsMillis" value="60000" /> <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 --> <property name="minEvictableIdleTimeMillis" value="25200000" /> <!-- 打开removeAbandoned功能 --> <property name="removeAbandoned" value="true" /> <!-- 1800秒，也就是30分钟 --> <property name="removeAbandonedTimeout" value="1800" /> <!-- 关闭abanded连接时输出错误日志 --> <property name="logAbandoned" value="true" /> <!-- 监控数据库 --> <!-- <property name="filters" value="stat" /> --> <property name="filters" value="mergeStat" /> </bean>
3、配置数据库连接信息；
driverClassName=org.h2.Driver
validationQuery=SELECT 1
jdbc_url=jdbc:h2:tcp://localhost/D:/software/h2/db/h2learn
jdbc_username=sa
jdbc_password=sa
4、增加pojo，dao，service，action层相应测试类；
package com.coshaho.learn.pojo; public class User { private int id; private String username; private String password; private String description; public int getId() { return id; } public void setId(int id) { this.id = id; } 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 String getDescription() { return description; } public void setDescription(String description) { this.description = description; } }
package com.coshaho.learn.dao; import com.coshaho.learn.pojo.User; public interface UserDao { User getUser(int id); int insertUser(User user); int updateUser(User user); int deleteUser(int id); int getUserNum(User user); }
package com.coshaho.learn.service; import com.coshaho.learn.pojo.User; public interface UserServiceI { User getUser(int id); int insertUser(User user); int updateUser(User user); int deleteUser(int id); int getUserNum(User user); }
package com.coshaho.learn.service.impl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.coshaho.learn.dao.UserDao; import com.coshaho.learn.pojo.User; import com.coshaho.learn.service.UserServiceI; @Service("userServiceImpl") public class UserServiceImpl implements UserServiceI { @Autowired private UserDao userDao; public User getUser(int id) { return userDao.getUser(id); } public int insertUser(User user) { return userDao.insertUser(user); } public int updateUser(User user) { return userDao.updateUser(user); } public int deleteUser(int id) { return userDao.deleteUser(id); } public int getUserNum(User user) { return userDao.getUserNum(user); } }
package com.coshaho.learn.action; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import com.coshaho.learn.pojo.User; import com.coshaho.learn.service.UserServiceI; @Controller("loginDB") public class LoginDBAction { @Autowired private UserServiceI userService; private String username; private String password; 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 String authority() { User user = new User(); user.setUsername(username); user.setPassword(password); if(userService.getUserNum(user) > 0 ) { return "success"; } return "error"; } }
5、增加MyBatis映射文件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.coshaho.learn.dao.UserDao"> <select id="getUser" parameterType="int" resultType="com.coshaho.learn.pojo.User"> SELECT * FROM USER WHERE ID=#{id} </select> <select id="getUserNum" parameterType="com.coshaho.learn.pojo.User" resultType="int"> SELECT count(0) FROM USER WHERE USERNAME=#{username} AND PASSWORD=#{password} </select> <insert id="insertUser" parameterType="com.coshaho.learn.pojo.User"> insert into user(id, username, password, description) values(#{id,jdbcType=INTEGER},#{username,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR},#{description,jdbcType=VARCHAR}); </insert> <update id="updateUser" parameterType="com.coshaho.learn.pojo.User"> update user <set> <if test="username!=null"> username=#{username,jdbcType=VARCHAR}, </if> <if test="password!=null"> password=#{password,jdbcType=VARCHAR}, </if> <if test="description!=null"> description=#{description,jdbcType=VARCHAR}, </if> </set> where id=#{id,jdbcType=INTEGER} </update> <delete id="deleteUser" parameterType="int"> delete from user where id=#{id} </delete> </mapper>
注：映射文件中namespace要和dao层接口名称一致。
6、spring.xml中集成MyBatis；
<!-- ========================================针对myBatis的配置项============================== --> <!-- 配置sqlSessionFactory --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="mapperLocations" value="classpath:com/coshaho/learn/pojo/*.xml"/> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.coshaho.learn.dao"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> </bean>
7、配置struts2文件;
<action name="authorityDB" class="loginDB" method="authority"> <result name="success">/success.jsp</result> <result name="error">/error.jsp</result> </action>
8、H2数据库USER表并插入测试数据；
9、增加登陆页面logindb.jsp；
<html> <head> <%String path = request.getContextPath();%> </head> <body> <form action="<%=path%>/framework/authorityDB.action" method="post"> UserName:<input type="text" name="username"/><p/> Password:<input type="password" name="password"/><p/> <input type="submit" name="submit"/> </form> </body> </html>
9、启动tomcat，访问http://localhost:8080/FrameIntegrationWeb/logindb.jsp。
Spring，Struts2，MyBatis，Activiti，Maven，H2，Tomcat集成（三）
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原文地址：http://www.cnblogs.com/coshaho/p/5079483.html
