一、创建Springboot的配置文件:application.properties,并添加MyBatis依赖
SpringApplication 会从
application.properties
文件中加载配置信息,下面是添加Spring配置信息的文件目录顺序:
当前目录下的/config子目录中
当前目录中
一个 classpath 包下的 /config
目录中
classpath 根目录中
大家根据自己习惯来即可。
(1)application.properties 文件配置如下:
spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://127.0.0.1/test spring.datasource.username=root spring.datasource.password=root
(2)添加 MyBatis 以及 MYSQL
<!-- SpringBoot - MyBatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.2.0</version> </dependency> <!-- Mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency>
二、创建POJO、Mapper、Service 以及 Controler
(1)User.java
package org.rcddup.app.domain;public class User { private Long id; private String name; private Short age; private Short status; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Short getAge() { return age; } public void setAge(Short age) { this.age = age; } public Short getStatus() { return status; } public void setStatus(Short status) { this.status = status; } }
(2)UserMapper.java
package org.rcddup.app.dao; import java.util.List; import org.apache.ibatis.annotations.Mapper; import org.apache.ibatis.annotations.Select; import org.rcddup.app.domain.User; @Mapperpublic interface UserMapper { @Select("select id, name, age, status from user") List<User> listUser(); @Select("select id, name, age, status from user where id=#{id}") User getUserById(Long id); }
(3)IUserService.java
package org.rcddup.app.service; import java.util.List; import org.rcddup.app.domain.User; public interface IUserService { List<User> listUser(); User getUserById(Long id); }
(4)UserService.java
package org.rcddup.app.service.impl; import java.util.List; import org.rcddup.app.dao.UserMapper; import org.rcddup.app.domain.User; import org.rcddup.app.service.IUserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; @Servicepublic class UserService implements IUserService{ @Autowired private UserMapper userMapper; @Override public List<User> listUser() { return userMapper.listUser(); } @Override public User getUserById(Long id) { return userMapper.getUserById(id); } }
(5)UserController.java
package org.rcddup.app.web.controller; import java.util.List; import org.rcddup.app.domain.User; import org.rcddup.app.service.IUserService;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("/user")public class UserController { @Autowired private IUserService userService; @RequestMapping("/list") public List<User> list() { return userService.listUser(); } @RequestMapping("/get") public User list(Long id) { return userService.getUserById(id); } }
重新启动 App.java
输入:http://localhost:8080/user/get?id=1
输入:http://localhost:8080/user/list
到此,SpringBoot整合Mybatis就成功了。
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