Mybatis 逆向工程 数据库生成mapper

1、添加 pom 依赖：

        <!-- 逆向工程 -->        <dependency>            <groupId>org.mybatis.generator</groupId>            <artifactId>mybatis-generator</artifactId>            <version>1.3.4</version>        </dependency>        <dependency>            <groupId>org.mybatis.generator</groupId>            <artifactId>mybatis-generator-maven-plugin</artifactId>            <version>1.3.4</version>        </dependency>        <!--====================-->

添加配置：

<!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="testTables" targetRuntime="MyBatis3">        <commentGenerator>            <!-- 是否去除自动生成的注释 true：是 ： false:否 -->            <property name="suppressAllComments" value="true"/>        </commentGenerator>        <!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->        <jdbcConnection driverClass="com.mysql.jdbc.Driver"                        connectionURL="jdbc:mysql://rm-bp14b4ud3l5yoy3f6po.mysql.rds.aliyuncs.com:3306/zhongshu_prod_db" userId="root"                        password="Liyi880301">        </jdbcConnection>        <!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer，为 true时把JDBC DECIMAL 和            NUMERIC 类型解析为java.math.BigDecimal -->        <javaTypeResolver>            <property name="forceBigDecimals" value="true"/>        </javaTypeResolver>        <!-- targetProject:生成PO类的位置 -->        <javaModelGenerator targetPackage="com.zhongshu.vegetables.bean"                            targetProject=".\src">            <!-- enableSubPackages:是否让schema作为包的后缀 -->            <property name="enableSubPackages" value="false"/>            <!-- 从数据库返回的值被清理前后的空格 -->            <property name="trimStrings" value="true"/>        </javaModelGenerator>        <!-- targetProject:mapper映射文件生成的位置 -->        <sqlMapGenerator targetPackage="com.zhongshu.vegetables.mapper"                         targetProject=".\src">            <!-- enableSubPackages:是否让schema作为包的后缀 -->            <property name="enableSubPackages" value="false"/>        </sqlMapGenerator>        <!-- targetPackage：mapper接口生成的位置 -->        <!--生成Dao类存放位置-->        <javaClientGenerator type="XMLMAPPER"                             targetPackage="com.zhongshu.vegetables.dao"                             targetProject=".\src">            <!-- enableSubPackages:是否让schema作为包的后缀 -->            <property name="enableSubPackages" value="false"/>        </javaClientGenerator>        <!-- 指定数据库表 -->        <table schema="" tableName="area"></table>        <table schema="" tableName="category"></table>        <table schema="" tableName="common"></table>        <table schema="" tableName="dictionary"></table>        <table schema="" tableName="item"></table>        <table schema="" tableName="menu"></table>        <table schema="" tableName="menu_role"></table>        <table schema="" tableName="user"></table>        <table schema="" tableName="order"></table>        <table schema="" tableName="order_detail"></table>        <table schema="" tableName="receive_address"></table>        <table schema="" tableName="role"></table>        <table schema="" tableName="shop_cart"></table>        <table schema="" tableName="unit"></table>        <table schema="" tableName="version"></table>    </context></generatorConfiguration>

执行代码

package com.zhongshu.vegetables.utils;import java.io.File;import java.io.IOException;import java.util.ArrayList;import java.util.List;import org.mybatis.generator.api.MyBatisGenerator;import org.mybatis.generator.config.Configuration;import org.mybatis.generator.config.xml.ConfigurationParser;import org.mybatis.generator.exception.XMLParserException;import org.mybatis.generator.internal.DefaultShellCallback;public class GeneratorSqlmap {    public void generator() throws Exception{        List<String> warnings = new ArrayList<String>();        boolean overwrite = true;        //指定 逆向工程配置文件        File configFile = new File("./src/main/resources/generatorConfig.xml");        ConfigurationParser cp = new ConfigurationParser(warnings);        Configuration config = cp.parseConfiguration(configFile);        DefaultShellCallback callback = new DefaultShellCallback(overwrite);        MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config,                callback, warnings);        myBatisGenerator.generate(null);    }     public static void main(String[] args) throws Exception {        try {            GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();            generatorSqlmap.generator();        } catch (Exception e) {            e.printStackTrace();        }    }}