mybatis-plus 代码生成器
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.3</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.4.1</version>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-engine-core</artifactId>
<version>2.3</version>
</dependency>
package com.example.mybatisplusdemo;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.config.DataSourceConfig;
import com.baomidou.mybatisplus.generator.config.GlobalConfig;
import com.baomidou.mybatisplus.generator.config.PackageConfig;
import com.baomidou.mybatisplus.generator.config.StrategyConfig;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
/**
* @author author
* @date 2021/8/3
*/
public class CodeGenerator {
public static void main(String[] args) {
// 代码生成器
AutoGenerator mpg = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
String projectPath = System.getProperty("user.dir");
// gc.setOutputDir(projectPath + "/src/main/java");
gc.setOutputDir(projectPath + "/mybatis-plus-demo/src/main/java"); // mybatis-plus-demo 是maven子模块名
gc.setAuthor("zhanglianwei");
gc.setOpen(false);
gc.setServiceName("%sService");
// gc.setSwagger2(true); 实体属性 Swagger2 注解
mpg.setGlobalConfig(gc);
// 数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl("jdbc:mysql://192.168.20.16:3306/test?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=GMT%2B8");
dsc.setDriverName("com.mysql.cj.jdbc.Driver");
dsc.setSchemaName("test");
dsc.setUsername("root");
dsc.setPassword("pwd");
dsc.setDbType(DbType.MYSQL);
mpg.setDataSource(dsc);
// 包配置
PackageConfig pc = new PackageConfig();
// pc.setModuleName(scanner("模块名"));
pc.setModuleName("mybatisplusdemo");
pc.setParent("com.example");
pc.setController("controller");
pc.setEntity("domain");
pc.setService("service");
pc.setServiceImpl("service.impl");
pc.setMapper("mapper");
pc.setXml("mapper.mapper");
mpg.setPackageInfo(pc);
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
strategy.setEntityLombokModel(true);
strategy.setRestControllerStyle(true);
strategy.setInclude("student"); // 表名,可多个表名,逗号隔开
strategy.setControllerMappingHyphenStyle(true);
mpg.setStrategy(strategy);
mpg.execute();
}
}
生成结构:
生成代码后,运行可能会出现 找不到 xml 的错误:org.apache.ibatis.binding.BindingException: Invalid bound statement (not found):
解决办法:
1、需要在pom 中添加配置 , 发现xml resource ,因为 默认资源(resource)是在 resources 文件夹下的
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
</build>
2、配置文件中 application.yml 、application.properties
mybatis-plus:
mapper-locations: classpath:com/example/mybatisplusdemo/mapper/*.xml # 映射文件位置,默认:classpath*:/mapper/**/*.xml
另外,生成的映射文件可以复制到 resources 文件夹下,这样 就不用在pom文件中添加发现xml的配置,但仍需要在 application.yml 、application.properties 中 配置 映射文件的位置
mybatis-plus:
mapper-locations: classpath:/mapper/*.xml # 映射文件位置
https://mp.baomidou.com/guide/generator.html
mybatis-plus 代码生成器 和 mybatisX 等插件 功能类似