mybatis三剑客

http://blog.csdn.net/google_webmaster/article/details/72996887

1。mybatis-plugin插件

特点，idea安装好这个插件之后，可以在dao层的方法中直接跳转到mapper中，十分方便，还有排错的功能。
直接搜索这个插件安装就行。

2。generatorConfig.xml 自动生成插件pojo，mapper，dao接口

只需要在数据库建好表，在generatorConfig.xml中配置就行了。
需要在pom中添加以下依赖

    <dependency>
      <groupId>org.mybatis.generatorgroupId>
      <artifactId>mybatis-generator-coreartifactId>
      <version>1.3.2version>
      <scope>testscope>
    dependency>

  <plugins>
      <plugin>
        <groupId>org.mybatis.generatorgroupId>
        <artifactId>mybatis-generator-maven-pluginartifactId>
        <version>1.3.2version>
        <configuration>
          <verbose>trueverbose>
          <overwrite>trueoverwrite>
        configuration>
      plugin>

generatorConfig.xml

<generatorConfiguration>

    
    <classPathEntry
            location="G:\tool\apache-maven-3.5.2\repository\mysql\mysql-connector-java\5.1.30\mysql-connector-java-5.1.30.jar" />

    <context id="MysqlTables" targetRuntime="MyBatis3">

        
        

        
        
        <commentGenerator>
            
            <property name="suppressAllComments" value="true" />
        commentGenerator>

        
        
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://localhost:3306/mama-bike"
                        userId="root" password="root">
        jdbcConnection>

        
        
        
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        javaTypeResolver>


        
        
        
        <javaModelGenerator targetPackage="com.coder520.mamabike.fee.entity"
                            targetProject="G:\IDEAworkspace\mama-bike\src\main\java"
                             >
            
            <property name="enableSubPackages" value="true" />
            
            <property name="trimStrings" value="true" />
        javaModelGenerator>

        
        
        <sqlMapGenerator targetPackage="com.coder520.mamabike.fee.dao"
                         targetProject="G:\IDEAworkspace\mama-bike\src\main\java">
            <property name="enableSubPackages" value="true" />
        sqlMapGenerator>

        
        
        <javaClientGenerator targetPackage="mappers"
                             targetProject="./src/main/resources"
                             type="XMLMAPPER">
            <property name="enableSubPackages" value="true" />
        javaClientGenerator>

        
        
        
        
        <table  tableName="ride_fee" domainObjectName="RideFee"
                enableInsert="true" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false"
                enableSelectByExample="false" selectByExampleQueryId="false">
            
            
            
            
        table>




    context>
generatorConfiguration>

3，分页插件

pom

    <dependency>
      <groupId>com.github.pagehelpergroupId>
      <artifactId>pagehelperartifactId>
      <version>4.1.0version>
    dependency>

    <dependency>
      <groupId>com.github.miemiedevgroupId>
      <artifactId>mybatis-paginatorartifactId>
      <version>1.2.17version>
    dependency>

    <dependency>
      <groupId>com.github.jsqlparsergroupId>
      <artifactId>jsqlparserartifactId>
      <version>0.9.4version>
    dependency>

然后需要在spring的配置文件中配置一下。具体是需要在datasource中配置需要加一个,这里就直接把全部的xml贴进来了
applicationContext-datasource.xml

<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.xsd
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">

    <context:component-scan base-package="com.mmall" annotation-config="true"/>

    <bean id="propertyConfigurer"
          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="order" value="2"/>
        <property name="ignoreUnresolvablePlaceholders" value="true"/>
        <property name="locations">
            <list>
                <value>classpath:datasource.propertiesvalue>
            list>
        property>
        <property name="fileEncoding" value="utf-8"/>
    bean>


    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${db.driverClassName}"/>
        <property name="url" value="${db.url}"/>
        <property name="username" value="${db.username}"/>
        <property name="password" value="${db.password}"/>
        
        <property name="initialSize" value="${db.initialSize}"/>
        
        <property name="maxActive" value="${db.maxActive}"/>
        
        <property name="maxIdle" value="${db.maxIdle}"/>
        
        <property name="minIdle" value="${db.minIdle}"/>
        
        <property name="maxWait" value="${db.maxWait}"/>
        
         
        <property name="defaultAutoCommit" value="${db.defaultAutoCommit}"/>
        
         
        
         
        
        <property name="minEvictableIdleTimeMillis" value="${db.minEvictableIdleTimeMillis}"/>

        
        <property name="timeBetweenEvictionRunsMillis" value="40000"/>
        
        <property name="testWhileIdle" value="true"/>
        
        <property name="validationQuery" value="SELECT 1 FROM dual"/>
    bean>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath*:mappers/*Mapper.xml">property>

        
        <property name="plugins">
            <array>
                <bean class="com.github.pagehelper.PageHelper">
                    <property name="properties">
                        <value>
                            dialect=mysql
                        value>
                    property>
                bean>
            array>
        property>

    bean>

    <bean name="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.mmall.dao"/>
    bean>

    
    <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
        <property name="rollbackOnCommitFailure" value="true"/>
    bean>


beans>