idea创建mybatis maven逆向工程

mybatis逆向工程可以通过数据库的表，直接生成对应的实体类以及mapper.java mapper.xml文件，可以大大提高我们的开发效率

创建逆向工程的步骤：
1. 创建maven项目
2. 在pom.xml核心配置文件中加入mybatis逆向工程插件

 <build>
        <plugins>
            <plugin>
                <groupId>org.mybatis.generatorgroupId>
                <artifactId>mybatis-generator-maven-pluginartifactId>
                <version>1.3.5version>
                <configuration>
                    <verbose>trueverbose>
                    <overwrite>trueoverwrite>
                configuration>
            plugin>
        plugins>
        <resources>
            <resource>
                <directory>src/main/javadirectory>
                <includes>
                    <include>**/*.xmlinclude>
                includes>
            resource>
        resources>
    build>

3.为项目添加依赖 -> 数据库驱动依赖

   <dependencies>
       <dependency>
           <groupId>mysqlgroupId>
           <artifactId>mysql-connector-javaartifactId>
           <version>5.1.34version>
       dependency>
   dependencies>

4.创建逆向工程的配置文件 generatorConfig.xml

<generatorConfiguration>
    
    <classPathEntry
            location="E:\maven\LocalWareHouse\mysql\mysql-connector-java\5.1.34\mysql-connector-java-5.1.34.jar" />

    <context id="scm_mysql_tables" targetRuntime="MyBatis3">
        
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
            <property name="suppressDate" value="true" />
        commentGenerator>

        
        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
        connectionURL="jdbc:mysql://localhost:3306/easybuy?characterEncoding=UTF-8"
                        userId="root"
                        password="root">
        jdbcConnection>

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

        
        <javaModelGenerator targetPackage="com.hd.entity"
                            targetProject="src">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        javaModelGenerator>

        
        <sqlMapGenerator targetPackage="com.hd.mapper"
                         targetProject="src">
            <property name="enableSubPackages" value="true" />
        sqlMapGenerator>

        
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.hd.mapper"
                             targetProject="src">
            <property name="enableSubPackages" value="true" />
        javaClientGenerator>

        
        <table schema="mybatis" tableName="easybuy_news" domainObjectName="News"
               enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false"
               selectByExampleQueryId="false">
        table>
    context>
generatorConfiguration>

5.双击下图对应位置，自动生成代码