MyBatis在SpringBoot2中的Spring Cloud Config配置中心集成

蜗牛互联网技术资讯2024-11-0740

在Spring Boot 2中集成MyBatis和Spring Cloud Config配置中心，可以按照以下步骤进行操作：

1. 添加依赖

首先，在你的pom.xml文件中添加必要的依赖：

<dependencies> <!-- Spring Boot Starter Web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- Spring Boot Starter MyBatis --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-mybatis</artifactId> </dependency> <!-- Spring Boot Starter Data JPA --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <!-- Spring Cloud Config Client --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> <!-- H2 Database (or any other database you are using) --> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <scope>runtime</scope> </dependency> <!-- Other dependencies --></dependencies>

2. 配置Spring Cloud Config Client

在你的application.yml或application.properties文件中配置Spring Cloud Config Client：

spring: application: name: my-service cloud: config: uri: http://localhost:8888 username: config-client password: config-client

3. 配置MyBatis

在你的application.yml或application.properties文件中配置MyBatis：

mybatis: type-aliases-package: com.example.demo.entity mapper-locations: classpath:mapper/*.xml

4. 创建实体类

创建一个简单的实体类，例如User：

package com.example.demo.entity; import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id; public class User { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String name; private Integer age; // Getters and Setters}

5. 创建Mapper接口

创建一个MyBatis的Mapper接口：

package com.example.demo.mapper; import com.example.demo.entity.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select; import java.util.List; @Mapperpublic interface UserMapper { @Select("SELECT * FROM users") List<User> findAll();
}

6. 创建Service层

创建一个Service层来调用Mapper接口：

package com.example.demo.service; import com.example.demo.entity.User;
import com.example.demo.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service; import java.util.List; @Servicepublic class UserService { @Autowired private UserMapper userMapper; public List<User> findAll() { return userMapper.findAll();
    }
}

7. 创建Controller层

创建一个Controller层来提供API接口：

package com.example.demo.controller; import com.example.demo.entity.User;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController; import java.util.List; @RestControllerpublic class UserController { @Autowired private UserService userService; @GetMapping("/users") public List<User> findAll() { return userService.findAll();
    }
}

8. 启动类

创建一个Spring Boot启动类：

package com.example.demo; import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplicationpublic class DemoApplication { public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}