mybatis-generator插件的使用及相关配置

mybatis-generator主要用于逆向工程，根据数据库来生成实体类以及mapper映射文件

1.第一步先添加依赖

<dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>5.1.6version>
    dependency>

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

2.在build标签中对插件进行配置

<plugin>
          <groupId>org.mybatis.generatorgroupId>
          <artifactId>mybatis-generator-maven-pluginartifactId>
          <version>1.3.2version>
          <configuration>
            <configurationFile>src/main/resources/generatorConfig.xmlconfigurationFile>
            <verbose>trueverbose>
            <overwrite>trueoverwrite>
          configuration>
          <dependencies>
            <dependency>
              <groupId>mysqlgroupId>
              <artifactId>mysql-connector-javaartifactId>
              <version>5.1.46version>
            dependency>
          dependencies>
        plugin>

3.在pom文件指定的配置文件路径下添加插件的配置文件

generatorConfig.xml

<?xml version="1.0" encoding="utf-8" ?>
DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <context id="default" targetRuntime="Mybatis3">
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
        commentGenerator>

        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/estore_db" userId="root" password="123456"/>
        <javaTypeResolver >
            <property name="forceBigDecimals" value="false"/>
        javaTypeResolver>
        <javaModelGenerator targetPackage="cn.estore.pojo" targetProject=".\src\main\java">
            <property name="enableSubPackage" value="false"/>
            <property name="trimStrings" value="true"/>
        javaModelGenerator>
        <sqlMapGenerator targetPackage="cn.estore.mapper" targetProject="./src/main/java">
            <property name="enableSubPackages" value="false"/>
        sqlMapGenerator>
        <javaClientGenerator type="XMLMAPPER" targetPackage="cn.estore.mapper" targetProject=".\src\main\java">
            <property name="enableSubPackages" value="false"/>
        javaClientGenerator>
        <table tableName="tb_link"/>
        <table tableName="tb_board"/>
        <table tableName="tb_payment_mode"/>
        <table tableName="tb_user"/>
        <table tableName="tb_category_main"/>
        <table tableName="tb_category_branch"/>
        <table tableName="tb_bill"/>
        <table tableName="tb_product"/>
        <table tableName="tb_bill_item"/>
        <table tableName="tb_user_cart"/>
    context>
generatorConfiguration>

4.运行插件，即可在项目中生成实体类以及数据库映射文件

 5.mapper映射文件在运行时可能会没有被编译，需要在build标签中添加resources配置

 <resources>
            <resource>
                <directory>src/main/javadirectory>
                <includes>
                    <include>**/*.*include>
                includes>
                
            resource>
            <resource>
                <directory>src/main/resourcesdirectory>
                <includes>
                    <include>**/*.*include>
                includes>
                
            resource>
        resources>