目录
首先导入我们的jar包
链接:https://pan.baidu.com/s/1Ent3kAwOagOZLT0XxDLEeA
提取码:zqpu
建立一个com.geyao.generator的包
generator的java类
package com.geyao.generator;
import java.io.File;
import java.util.*;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;public class generator {public static void main(String[] args) throws Exception {List<String> warnings = new ArrayList<String>();boolean overwrite = true;// 指定配置文件File configFile = new File("src/generator.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);}}
配置文件
generator.xml放在配置src文件下
<?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="DB2Tables" targetRuntime="MyBatis3"><commentGenerator><!-- 是否去除自动生成的注释 --><property name="suppressAllComments" value="true"/></commentGenerator><!-- Mysql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://localhost:3306/blog_gp1701?serverTimezone=GMT%2B8"userId="root"password="123"></jdbcConnection><!-- Oracle数据库<jdbcConnection driverClass="oracle.jdbc.OracleDriver"connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:yycg"userId="yycg"password="yycg"></jdbcConnection> --><!-- 默认为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="false" /></javaTypeResolver><!-- targetProject:生成POJO类的位置 --><javaModelGenerator targetPackage="com.geyao.mybatis.pojo" 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.geyao.mybatis.mapper" targetProject=".\src"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /></sqlMapGenerator><!-- targetProject:mapper接口生成的的位置 --><javaClientGenerator type="XMLMAPPER" targetPackage="com.geyao.mybatis.mapper" targetProject=".\src"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /></javaClientGenerator><!-- 指定数据表 <table schema="" tableName="tb_content"></table><table schema="" tableName="tb_content_category"></table><table schema="" tableName="tb_item"></table><table schema="" tableName="tb_item_cat"></table><table schema="" tableName="tb_item_desc"></table><table schema="" tableName="tb_item_param"></table><table schema="" tableName="tb_item_param_item"></table><table schema="" tableName="tb_order"></table><table schema="" tableName="tb_order_item"></table><table schema="" tableName="tb_order_shipping"></table><table schema="" tableName="tb_user"></table>--><table schema="" tableName="blog"></table><!-- 有些表的字段需要指定java类型 <table schema="DB2ADMIN" tableName="ALLTYPES" domainObjectName="Customer" ><property name="useActualColumnNames" value="true"/><generatedKey column="ID" sqlStatement="DB2" identity="true" /><columnOverride column="DATE_FIELD" property="startDate" /><ignoreColumn column="FRED" /><columnOverride column="LONG_VARCHAR_FIELD" jdbcType="VARCHAR" /></table> --></context>
</generatorConfiguration>
修改配置文件
指定数据库表 我的数据库表示blog
右键项目---refresh
出现相关目录
创建完成