转自：https://idig8.com/2018/08/29/xiaochengxujavashizhanspringbootbanmybatisnixiangshengchenggongju32/
我们的整个项目的构建和分层已经完毕了，现在需要通过一个工具将我们整个数据库，反向升成pojo和mybatis类。源码：https://github.com/limingios/wxProgram.git 中的wx-springboot
代码生成器
逆向生成mysql对应的pojo和mybatis通过单独的一个工程不影响现有的业务逻辑。
- mybatis-generatorConfig工程
通过源码里面的sql生成对应的表结构和表数据。
mybatis-generatorConfig的pom文件
4.0.0
com.idig8
0.0.1-SNAPSHOT
mybatis-generatorConfig
UTF-8
org.springframework.boot
spring-boot-starter-log4j
1.3.8.RELEASE
com.alibaba
druid
1.1.0
com.alibaba
druid-spring-boot-starter
1.1.0
mysql
mysql-connector-java
5.1.41
org.mybatis.spring.boot
mybatis-spring-boot-starter
1.3.1
tk.mybatis
mapper-spring-boot-starter
1.2.4
com.github.pagehelper
pagehelper-spring-boot-starter
1.2.3
org.mybatis.generator
mybatis-generator-core
1.3.2
compile
true
添加generatorConfig.xml文件
GeneratorDisplay.java类
package com.idig8.mybatis.utils;
import java.io.File;
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.internal.DefaultShellCallback;
public class GeneratorDisplay {
public void generator() throws Exception{
List warnings = new ArrayList();
boolean overwrite = true;
//指定 逆向工程配置文件
File configFile = new File("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 {
GeneratorDisplay generatorSqlmap = new GeneratorDisplay();
generatorSqlmap.generator();
} catch (Exception e) {
e.printStackTrace();
}
}
}
添加MyMapper.java文件
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2016 [email protected]
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.idig8.utils;
import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.MySqlMapper;
public interface MyMapper extends Mapper, MySqlMapper {
//TODO
//FIXME 特别注意，该接口不能被扫描到，否则会出错
}
- 运行GeneratorDisplay的main方法
- 复制com.idig8.mapper目录到wx-springboot-mapper项目下
-
复制com.idig8.pojo 目录到wx-springboot-pojo项目下
-
复制com.idig8.utils 目录到wx-springboot-common项目下
-
复制resources mapper到wx-springboot-api的resources里面
PS：mybatis-generatorConfig 可以看成一个单独的项目，主要的目的就是为了升成对应的mapper.xml和对应的pojo实体类，mapper对应的实体。