配置文件

<?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>

    <classPathEntry location="D:\IdeaWorkspace\mysql-connector-java-6.0.4.jar" />

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

        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <!-- 是否去除自动生成的注释true：是： false:否 -->
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>

        <jdbcConnection driverClass="com.mysql.jdbc.Driver"
                        connectionURL="jdbc:mysql://rm-uf61g96k2y8v18s45o.mysql.rds.aliyuncs.com:3306/user_00"
                        userId="root"
                        password="Dlq!@#$">
        </jdbcConnection>

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

        <!--
            model存放位置
            targetProject：当前项目下的路径
            targetPackage：路径下的包名
        -->
        <javaModelGenerator targetPackage="com.dlq.blog.model" targetProject="src\main\java">
            <!-- 是否使用schema.table生成子包 -->
            <property name="enableSubPackages" value="false" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>

        <!-- mapper文件存放位置 -->
        <sqlMapGenerator targetPackage="com.dlq.blog.model.mapper"  targetProject="src\main\java">
            <property name="enableSubPackages" value="false" />
        </sqlMapGenerator>
        
        <!-- mapper类存放位置 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.dlq.blog.model"  targetProject="src\main\java">
            <property name="enableSubPackages" value="false" />
        </javaClientGenerator>

        <!-- 表相关信息 -->
        <table schema="user_00" tableName="user_00" domainObjectName="User" >
        </table>

        <!--<table tableName="user_00" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false"
               enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
        </table>-->

    </context>
</generatorConfiguration>

代码

package com.dlq.blog.test;

import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.internal.DefaultShellCallback;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

/**
 * @author donglq
 * @date 2017/10/11 21:36
 */
public class MybatisGenerator {

    public static void main(String[] args) {
        try {
            List<String> warnings = new ArrayList<String>();
            boolean overwrite = true;
            File configFile = new File("src/test/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);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

jar包

mysql:mysql-connector-java:5.1.25
org.mybatis.generator:mybatis-generator-core:1.3.5