在Spring Boot项目中使用MyBatis-Plus进行代码逆向生成，可以通过MyBatis-Plus提供的代码生成器来快速生成实体类、Mapper接口、Service接口及其实现类等。以下是一个简单的示例步骤：
代码逆向生成
1.添加依赖：
在pom.xml文件中添加MyBatis-Plus和代码生成器相关的依赖。
<!-- Spring Boot Starter Data JPA -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- MyBatis-Plus -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.5.7</version>
</dependency>
<!-- MyBatis-Plus Generator -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>3.5.7</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.31</version> <!-- 使用合适的版本号 -->
</dependency>
<!-- MySQL 驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.23</version>
</dependency>2.写代码生成器：
创建一个Java类，用于配置和运行代码生成器。
public class CodeGenerator {
// 你的数据库连接信息
private static final String URL = "jdbc:mysql://localhost:3306/my_db?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=UTC";
private static final String USERNAME = "root";
private static final String PASSWORD = "123456";
public static void main(String[] args) {
FastAutoGenerator.create(URL, USERNAME, PASSWORD)
.globalConfig(builder -> builder
.author("xiaochen")
.outputDir(Paths.get(System.getProperty("user.dir")) + "/src/main/java")
.commentDate("yyyy-MM-dd")
.enableSwagger()
)
.packageConfig(builder -> builder
.parent("com.demo")
.entity("entity")
.controller("controller")
.service("service")
.serviceImpl("service.impl")
.mapper("mapper")
.xml("mapper.xml")
)
.strategyConfig(builder -> builder
.addInclude("user_test")
.entityBuilder()
.enableLombok()
)
.templateEngine(new FreemarkerTemplateEngine())
.execute();
}
}3.运行代码生成器：
运行CodeGenerator类的main方法，代码生成器将会根据配置生成相应的代码文件。
通过以上步骤，你可以快速生成MyBatis-Plus所需的实体类、Mapper接口、Service接口及其实现类等代码，大大提高开发效率。
续：
当然也可以自定义controller,配置如下：
1.修改controller模板
将其放在 resources 下的 templates 目录下
package ${package.Controller};
import org.springframework.web.bind.annotation.RequestMapping;
<#if restControllerStyle>
import org.springframework.web.bind.annotation.RestController;
<#else>
import org.springframework.stereotype.Controller;
</#if>
<#if superControllerClassPackage??>
import ${superControllerClassPackage};
</#if>
import ${package.Entity}.${entity};
<#if generateService>
import ${package.Service}.${table.serviceName};
</#if>
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestParam;
import java.util.List;
/**
* <p>
* ${table.comment!} 前端 控制器
* </p>
*
* @author ${author}
* @since ${date}
*/
<#if restControllerStyle>
@RestController
<#else>
@Controller
</#if>
@RequestMapping("<#if package.ModuleName?? && package.ModuleName != "">/${package.ModuleName}</#if>/<#if controllerMappingHyphenStyle>${controllerMappingHyphen}<#else>${table.entityPath}</#if>")
<#if kotlin>
class ${table.controllerName}<#if superControllerClass??> : ${superControllerClass}()</#if>
<#else>
<#if superControllerClass??>
public class ${table.controllerName} extends ${superControllerClass} {
<#else>
public class ${table.controllerName} {
</#if>
@Autowired
private ${table.serviceName} ${(table.serviceName?substring(1))?uncap_first};
/**
* 查询所有
*/
@GetMapping
public List<${entity}> getAll() {
return ${(table.serviceName?substring(1))?uncap_first}.list();
}
/**
* 根据id查询
*/
@GetMapping("/{id}")
public ${entity} getById(@PathVariable Long id) {
return ${(table.serviceName?substring(1))?uncap_first}.getById(id);
}
/**
* 添加
*/
@PostMapping
public boolean add(@RequestBody ${entity} ${entity?uncap_first}) {
return ${(table.serviceName?substring(1))?uncap_first}.save(${entity?uncap_first});
}
/**
* 修改
*/
@PutMapping("/{id}")
public boolean update(@PathVariable Integer id, @RequestBody ${entity} ${entity?uncap_first}) {
${entity?uncap_first}.setId(id);
return ${(table.serviceName?substring(1))?uncap_first}.updateById(${entity?uncap_first});
}
/**
* 删除
*/
@DeleteMapping("/{id}")
public boolean delete(@PathVariable Long id) {
return ${(table.serviceName?substring(1))?uncap_first}.removeById(id);
}
}
</#if>
2.在strategyConfig配置中添加如下代码
.controllerBuilder().enableRestStyle().template("templates/controller.java")3.测试：
生成效果如下：
/**
* <p>
* 前端 控制器
* </p>
*
* @author xiaochen
* @since 2024-07-05
*/
@RestController
@RequestMapping("/userTest")
public class UserTestController {
@Autowired
private IUserTestService userTestService;
/**
* 查询所有
*/
@GetMapping
public List<UserTest> getAll() {
return userTestService.list();
}
/**
* 根据id查询
*/
@GetMapping("/{id}")
public UserTest getById(@PathVariable Long id) {
return userTestService.getById(id);
}
/**
* 添加
*/
@PostMapping
public boolean add(@RequestBody UserTest userTest) {
return userTestService.save(userTest);
}
/**
* 修改
*/
@PutMapping("/{id}")
public boolean update(@PathVariable Integer id, @RequestBody UserTest userTest) {
userTest.setId(id);
return userTestService.updateById(userTest);
}
/**
* 删除
*/
@DeleteMapping("/{id}")
public boolean delete(@PathVariable Long id) {
return userTestService.removeById(id);
}
}
