(收藏）MyBatis与Spring集成

http://wdmcygah.iteye.com/blog/2148881

1）spring-mybatis.xml：集成的配置，三种方式选择一种即可。

<?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:context="http://www.springframework.org/schema/context" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans  
    http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context.xsd"> 
 
    <context:component-scan base-package="com.research.mybatis"></context:component-scan> 
 
    <!-- 创建SqlSessionFactory，同时指定数据源 --> 
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 
        <property name="dataSource" ref="dataSource" /> 
        <property name="configLocation" 
            value="classpath:generator/spring/spring-mybatis-config.xml"></property> 
    </bean> 
 
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 
        destroy-method="close"> 
        <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
        <property name="url" 
            value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=utf8&amp;generateSimpleParameterMetadata=true" /> 
        <property name="username" value="root" /> 
        <property name="password" value="root" /> 
    </bean> 
     
    <!-- 方式1、使用继承SqlSessionDaoSupport方式 --> 
    <bean id="mybatisSpringDaoUseDaoSupport" 
        class="com.research.mybatis.spring.MybatisSpringDaoUseDaoSupport"> 
        <property name="sqlSessionFactory" ref="sqlSessionFactory" /> 
    </bean> 
 
    <!-- 方式2、使用sqlSessionTemplate方式 --> 
    <bean id="mybatisSpringDaoUseTemplate" class="com.research.mybatis.spring.MybatisSpringDaoUseTemplate"> 
        <property name="sqlSession" ref="sqlSession"></property> 
    </bean> 
 
    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate"> 
        <constructor-arg ref="sqlSessionFactory"></constructor-arg> 
    </bean> 
 
    <!-- 方式3、使用扫描Mapper类的方式 --> 
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 
        <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> 
        <property name="basePackage" value="com.research.mybatis.generator.dao"></property> 
    </bean> 
 
</beans> 

（2）spring-mybatis-config.xml：这个是MyBatis相关的配置，不需要配置太多，因为集成的时候环境配置、数据源配置、事务配置都交给Spring去管理了。

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE configuration 
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
  "http://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration> 
    <typeAliases> 
        <typeAlias alias="AgentInvokeGenerate" type="com.research.mybatis.generator.model.AgentInvokeGenerate"/> 
    </typeAliases> 
    <mappers> 
        <mapper resource="generator/mapper/AgentInvokeGenerateMapper.xml"></mapper> 
    </mappers> 
</configuration> 
（3）AgentInvokeGenerateMapper.xml：具体Sql

<?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.research.mybatis.generator.dao.AgentInvokeGenerateMapper"> 
   
  <resultMap id="BaseResultMap" type="com.research.mybatis.generator.model.AgentInvokeGenerate"> 
    <id column="ID" jdbcType="CHAR" property="ID" /> 
    <result column="DB_FLAG" jdbcType="VARCHAR" property="dbFlag" /> 
    <result column="STATUS" jdbcType="CHAR" property="STATUS" /> 
  </resultMap> 
   
  <select id="selectByPrimaryKey" parameterType="java.lang.String" resultMap="BaseResultMap"> 
    select  
    <include refid="Base_Column_List" /> 
    from agent_info 
    where ID = #{ID,jdbcType=CHAR} 
  </select> 
</mapper> 

具体调用的代码如下：

（1）使用SqlSessionTemplate方式：

package com.research.mybatis.spring; 
 
import org.apache.ibatis.session.SqlSession; 
 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
public class MybatisSpringDaoUseTemplate { 
 
    private SqlSession sqlSession; 
     
    public AgentInvokeGenerate getAgentInvokeById(String id){ 
        return sqlSession.selectOne("com.research.mybatis.generator.dao.AgentInvokeGenerateMapper.selectByPrimaryKey", id); 
    } 
 
    public SqlSession getSqlSession() { 
        return sqlSession; 
    } 
 
    public void setSqlSession(SqlSession sqlSession) { 
        this.sqlSession = sqlSession; 
    }      
} 

（2）使用SqlSessionDaoSupport方式：

package com.research.mybatis.spring; 
 
import org.mybatis.spring.support.SqlSessionDaoSupport; 
import org.springframework.stereotype.Repository; 
 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
@Repository 
public class MybatisSpringDaoUseDaoSupport extends SqlSessionDaoSupport{ 
 
    public AgentInvokeGenerate getAgentInvokeById(String id){ 
        return getSqlSession().selectOne("com.research.mybatis.generator.dao.AgentInvokeGenerateMapper.selectByPrimaryKey", id); 
    }  
} 

（3）使用Mapper方式：

package com.research.mybatis.spring; 
 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.stereotype.Repository; 
 
import com.research.mybatis.generator.dao.AgentInvokeGenerateMapper; 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
@Repository 
public class MybatisSpringDaoUseMapper { 
 
    @Autowired 
    private AgentInvokeGenerateMapper mapper; 
     
    public AgentInvokeGenerate getAgentInvokeById(String id){ 
        return mapper.selectByPrimaryKey(id); 
    } 
} 

   相关实体类和Mapper类：

package com.research.mybatis.generator.model; 
 
public class AgentInvokeGenerate { 
    private String ID; 
 
    private String dbFlag; 
 
    private String STATUS; 
 
    public String getID() { 
        return ID; 
    } 
 
    public void setID(String ID) { 
        this.ID = ID == null ? null : ID.trim(); 
    } 
 
    public String getDbFlag() { 
        return dbFlag; 
    } 
 
    public void setDbFlag(String dbFlag) { 
        this.dbFlag = dbFlag == null ? null : dbFlag.trim(); 
    } 
 
    public String getSTATUS() { 
        return STATUS; 
    } 
 
    public void setSTATUS(String STATUS) { 
        this.STATUS = STATUS == null ? null : STATUS.trim(); 
    } 
} 


package com.research.mybatis.generator.dao; 
 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
public interface AgentInvokeGenerateMapper { 
 
    AgentInvokeGenerate selectByPrimaryKey(String ID); 
} 

具体测试类如下（使用TestNG）：

（1）使用SqlSessionTemplate方式的测试类：

package com.research.mybatis.spring; 
 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.test.context.ContextConfiguration; 
import org.springframework.test.context.testng.AbstractTestNGSpringContextTests; 
import org.testng.Assert; 
import org.testng.annotations.Test; 
 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
@ContextConfiguration(locations="classpath:/generator/spring/spring-mybatis.xml") 
public class MybatisSpringDaoUseTemplateTest extends AbstractTestNGSpringContextTests{ 
 
  @Autowired 
  private MybatisSpringDaoUseTemplate dao; 
     
  @Test 
  public void getAgentInvokeById() { 
    String id = "001"; 
    AgentInvokeGenerate ai = dao.getAgentInvokeById(id); 
    Assert.assertTrue("000".equals(ai.getDbFlag())); 
  } 
} 

（2）使用SqlSessionDaoSupport方式的测试类：

package com.research.mybatis.spring; 
 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.test.context.ContextConfiguration; 
import org.springframework.test.context.testng.AbstractTestNGSpringContextTests; 
import org.testng.Assert; 
import org.testng.annotations.Test; 
 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
@ContextConfiguration(locations="classpath:/generator/spring/spring-mybatis.xml") 
public class MybatisSpringDaoUseDaoSupportTest extends AbstractTestNGSpringContextTests{ 
 
  @Autowired 
  private MybatisSpringDaoUseDaoSupport dao; 
     
  @Test 
  public void getAgentInvokeById() { 
    String id = "001"; 
    AgentInvokeGenerate ai = dao.getAgentInvokeById(id); 
    Assert.assertTrue("000".equals(ai.getDbFlag())); 
  } 
} 

（3）使用Mapper方式的测试类：

package com.research.mybatis.spring; 
 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.test.context.ContextConfiguration; 
import org.springframework.test.context.testng.AbstractTestNGSpringContextTests; 
import org.testng.Assert; 
import org.testng.annotations.Test; 
 
import com.research.mybatis.generator.model.AgentInvokeGenerate; 
 
@ContextConfiguration(locations="classpath:/generator/spring/spring-mybatis.xml") 
public class MybatisSpringDaoUseMapperTest extends AbstractTestNGSpringContextTests{ 
 
  @Autowired 
  private MybatisSpringDaoUseMapper dao; 
     
  @Test 
  public void getAgentInvokeById() { 
    String id = "001"; 
    AgentInvokeGenerate ai = dao.getAgentInvokeById(id); 
    Assert.assertTrue("000".equals(ai.getDbFlag())); 
  } 
}