Mybatis Ibatis Spring整合方式

mybatis ibatis sprin

mybatis是ibatis的升级版，spring也有自带mybatis的orm。所以，搭建ibatis的框架也会有多种方式（我这里mybatis是3.0的，ibatis是2.3的，spring是3.0的，数据库是mysql）。下面介绍3中方式

1，只是用mybatis3。

2，使用mybatis3+spring3(使用mybatis的SqlSessionFactory )。

3，使用ibatis2.3+spring(使用spring自带的ibatis)

spring的orm包中只有ibatis，没有mybatis。而mybatis和ibatis还是有些区别的，比如配置文件属性不同。

 

第一种方式(只使用mybatis)：

1）jar包：

cglib-2.2.jar
asm-3.1.jar
mysql-connector-java-3.1.13.jar
mybatis-3.0.5.jar

junit.jar

2）mybatis配置文件：

xml version="1.0" encoding="UTF-8" ?>>
<configuration>

    <settings>

        <setting name="cacheEnabled" value="true"/>

        <setting name="lazyLoadingEnabled" value="true"/>

        <setting name="aggressiveLazyLoading" value="true"/>

        <setting name="multipleResultSetsEnabled" value="true"/>

        <setting name="useColumnLabel" value="true"/>

        <setting name="useGeneratedKeys" value="true"/>

        <setting name="autoMappingBehavior" value="PARTIAL"/>

        <setting name="defaultExecutorType" value="SIMPLE"/>

        <setting name="defaultStatementTimeout" value="25000"/>
    settings>


    <typeAliases>
        <typeAlias alias="pageAccessURL"  type="com.lgm.mybatis.model.PageAccessURL" />
    typeAliases>

    <environments default="development">

        <environment id="development1">

        <environment id="development2">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="com.mysql.jdbc.Driver"/>
                <property name="url" value="jdbc:mysql://localhost:3306/appdb"/>
                <property name="username" value="root"/>
                <property name="password" value="123456"/>

                <property name="poolMaximumActiveConnections" value="10"/>

                <property name="poolMaximumIdleConnections" value="5"/>

                <property name="poolMaximumCheckoutTime" value="20000"/>

                <property name="poolTimeToWait" value="20000"/>

                <property name="poolPingQuery" value="NO PING QUERY SET"/>

                <property name="poolPingEnabled" value="false"/>

                <property name="poolPingConnectionsNotUsedFor" value="0"/>
            dataSource>
        environment>


        <environment id="development3">
            <transactionManager type="JDBC"/>
            <dataSource type="JNDI">
                <property name="data_source" value="java:comp/env/jndi/mybatis"/>
                <property name="env.encoding" value="UTF8"/>

    <mappers>
        <mapper resource="com/lgm/mybatis/config/pageAccessURL.xml"/>
    mappers>

configuration>

 

其中属性是数据源环境配置，可以配置多个数据源配置。每个属性代表一种配置方式。

加载事务配置 和数据源配置。

  有两种配置方式，分别是JDBC和MANAGED，详细说明见配置注释。

有三种配置方式，分别是UNPOOLED、POOLED、JNDI，详细说明见配置注释。

定义别名，使用指定的别名来定义。

注：关于JNDI的配置，见tomcat的几种JNDI配置方法

3）mybatis的sql映射配置文件：

xml version="1.0" encoding="UTF-8" ?>

"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="pageAccessURL" >



    <select id="selectPageAccessURL" parameterType="int" resultType="pageAccessURL" >
        select * from tables where URL_ID = #{id}
    select>

    <select id="selectPageAccessURLByClass" parameterType="pageAccessURL" resultType="pageAccessURL">
        select * from tables where URL_ID = #{urlId} and URL = #{url}
    select>


    <sql id="usercolumns">URL_ID as urlId,url,moduleId,state,marksql>
    <select id="selectPageAccessURL2" parameterType="int" resultType="pageAccessURL">
        select <include refid="usercolumns" />
        from tables where URL_ID = #{id}
    select>




        <setting name="cacheEnabled" value="true"/>

        <setting name="lazyLoadingEnabled" value="true"/>

        <setting name="aggressiveLazyLoading" value="true"/>

        <setting name="multipleResultSetsEnabled" value="true"/>

        <setting name="useColumnLabel" value="true"/>

        <setting name="useGeneratedKeys" value="true"/>

        <setting name="autoMappingBehavior" value="PARTIAL"/>

        <setting name="defaultExecutorType" value="SIMPLE"/>

        <setting name="defaultStatementTimeout" value="25000"/>
    settings>


    <typeAliases>
        <typeAlias alias="pageAccessURL"  type="com.lgm.mybatis.model.PageAccessURL" />
    typeAliases>



    <mappers>
        <mapper resource="com/lgm/mybatis/config/pageAccessURL.xml"/>
    mappers>

configuration>

使用了spring管理的话，这里就不用设置数据源等其他配置了

5）mybatis的sql映射文件配置：

同方式一配置的sql映射文件配置

6）配置DAO层：

public class PageAccessURLManager {


    private SqlSessionFactory sqlSessionFactory ;

    public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
        this.sqlSessionFactory = sqlSessionFactory;
    }

    public PageAccessURL getPageAccessURL(int url_id){
        PageAccessURL page = (PageAccessURL)sqlSessionFactory.openSession().selectOne("selectPageAccessURL",url_id);
        System.out.println(page.getUrl());
        return page;
    }
}

7）测试：

public void testSelect() {
    ApplicationContext tx = new ClassPathXmlApplicationContext("applicationContext.xml");
    PageAccessURLManager page = (PageAccessURLManager)tx.getBean("pageAccessURLManager");
    page.getPageAccessURL(123456);
}

 

 

 

第三种方式(ibatis2.3+spring3)：

1)jar包：

mysql-connector-java-3.1.13.jar
log4j-1.2.16.jar
org.springframework.aop-3.0.5.RELEASE.jar
org.springframework.beans-3.0.5.RELEASE.jar
org.springframework.core-3.0.5.RELEASE.jar
org.springframework.orm-3.0.5.RELEASE.jar
org.springframework.web-3.0.5.RELEASE.jar
org.springframework.web.servlet-3.0.5.RELEASE.jar
org.springframework.context-3.0.5.RELEASE.jar
org.springframework.context.support-3.0.5.RELEASE.jar
commons-logging-1.1.1.jar
spring-asm-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
commons-dbcp-1.2.2.jar
commons-pool-1.3.jar
ibatis-2.3.0.677.jar

junit.jar

2)spring配置文件：

applicationContext.xml

 

xml version="1.0" encoding="UTF-8" ?>
>

<beans>
    <import resource="applicationContext-dao.xml" />
beans>

applicationContext-dao.xml

xml version="1.0" encoding="UTF-8" ?>
>

<beans>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    bean>

    <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
        <property name="configLocation" value="classpath:mybatis-config-mappings.xml" />
        <property name="dataSource" ref="dataSource" />
    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/appdb" />
        <property name="username" value="root" />
        <property name="password" value="123456" />
        <property name="maxActive" value="100" />
        <property name="maxIdle" value="5" />
        <property name="minEvictableIdleTimeMillis" value="300000" />
        <property name="timeBetweenEvictionRunsMillis" value="120000" />
        <property name="validationQuery" value="SELECT 1" />
        <property name="testWhileIdle" value="true" />
        <property name="testOnReturn" value="true" />
        <property name="testOnBorrow" value="true" />
    bean>

    <bean id="pageAccessURLManager" class="com.lgm.mybatis.manager.PageAccessURLManager">
        <property name="sqlMapClient" ref="sqlMapClient" />
    bean>

beans>

 

3）ibatis配置文件：

xml version="1.0" encoding="UTF-8" ?>
>

<sqlMapConfig>
    <settings cacheModelsEnabled="true" enhancementEnabled="true"
        lazyLoadingEnabled="true" maxRequests="32" maxSessions="10"
        maxTransactions="5" useStatementNamespaces="false" />


    <typeAlias alias="pageAccessURL"  type="com.lgm.mybatis.model.PageAccessURL" />

    <sqlMap resource="com/lgm/mybatis/config/pageAccessURL.xml"/>

sqlMapConfig>

4)ibatis的sql映射配置文件：

xml version="1.0" encoding="UTF-8" ?>
>
<sqlMap namespace="pageAccessURL">

    <cacheModel id="productCache" type="LRU">
        <flushInterval hours="24"/>
        <property name="size" value="1000" />
    cacheModel>

    <select id="selectPageAccessURL" parameterClass="int" resultClass="pageAccessURL" cacheModel="productCache">
        select * from PAGE_ACCESS_URL where URL_ID = #id#
    select>

    <select id="selectPageAccessURLByClass" parameterClass="pageAccessURL" resultClass="pageAccessURL">
        select * from PAGE_ACCESS_URL where URL_ID = #urlId# and URL = #url#
    select>

    <sql id="usercolumns">URL_ID as urlId,url,moduleId,state,marksql>
    <select id="selectPageAccessURL2" parameterClass="int" resultClass="pageAccessURL">
        select <include refid="usercolumns" />
        from PAGE_ACCESS_URL where URL_ID = #id#
    select>

    <insert id="insertTest" >
        <selectKey keyProperty="id" resultClass="int" >
            SELECT FLOOR(1 + (RAND() * 1000000));
        selectKey>
        insert into table values(xx,xx);
    insert>

sqlMap>

5）配置DAO层：

public class PageAccessURLManager {

    private SqlMapClient sqlMapClient ;
    public void setSqlMapClient(SqlMapClient sqlMapClient) {
        this.sqlMapClient = sqlMapClient;
    }

    public void getPageAccessURL(int urlId) throws SQLException{
        PageAccessURL page = (PageAccessURL)this.sqlMapClient.queryForObject("selectPageAccessURL", urlId);
        System.out.println(page.getUrl());
    }

}

注意：请仔细对比mybatis和ibatis的配置区别。

6）测试：

同方式二的测试；