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1.新建maven项目
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先新建一个maven项目,勾选上creat a simple project,填写groupid,artifactid
2.建立项目结构
3.添加依赖
org.springframework.boot spring-boot-starter-parent 2.0.3.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-starter-web org.mybatis.spring.boot mybatis-spring-boot-starter 1.3.2 MySQL mysql-connector-java junit junit org.springframework.boot spring-boot-maven-plugin
4.代码编写
在包的最外层添加启动类
package com.lee.test; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cache.annotation.EnableCaching; @SpringBootApplication @EnableCaching public class Application { public static void main(String[] args) { SpringApplication.run(Application.class, args); } }
实体类
package com.lee.test.pojo; import org.springframework.stereotype.Component; @Component public class User { private int id; private String name; private String telephone; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getTelephone() { return telephone; } public void setTelephone(String telephone) { this.telephone = telephone; } }
mapper接口
package com.lee.test.mapper; import java.util.List; import org.apache.ibatis.annotations.Mapper; import com.lee.test.pojo.User; @Mapper public interface UserMapper { ListgetUser(int id); }
service接口
package com.lee.test.service; import java.util.List; import com.lee.test.pojo.User; public interface UserService { public ListgetUser(int id); }
service接口实现
package com.lee.test.service; import java.util.List; import com.lee.test.pojo.User; public interface UserService { public ListgetUser(int id); }
controller层
package com.lee.test.controller; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; import com.lee.test.pojo.User; import com.lee.test.service.UserService; @RestController public class UserController { @Autowired private UserService userService; @RequestMapping("/getUser") public ListgetUser(@RequestParam("id") int id) { return userService.getUser(id); } }
还有mapper.xml的实现
<?xml version="1.0" encoding="UTF-8"?>
最后是一些配置在application.properties中
spring.datasource.driverClassName=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8 spring.datasource.username=root spring.datasource.password=root mybatis.mapper-locations: classpath:mapper/*.xml
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。