SpringBoot整合Mybatis
练手用的,目前只有单表，后续更新1V多、多V1和多V多
搭建springboot基础环境
这个不在这里细说了，网上多的是。
项目结构
主要分为如下几部分:
- pom.xml
- mybatis.xml
- application.properties
- bean
- dao
- service
- controller
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.miracle</groupId>
<artifactId>testplatform</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>testplatform</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>
</project>
application.properties
#日志配置
logging.file.path=./log/platform.log
logging.file.max-size=10MB
logging.level.com.miracle=debug
#数据库配置
spring.datasource.url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
mybatis.config-location=classpath:mybatis/mybatis-config.xml
Test.java
package com.miracle.bean;
/**
* 功能描述：
*
* @Author: Miracle
* @Date: 2020/4/16 17:05
*/
public class Test {
private int id;
private String name;
private int age;
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 int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "Test{" +
"id=" + this.getId() +
", name='" + this.getName() + '\'' +
", age=" + this.getAge() +
'}';
}
}
TestDao.java
package com.miracle.dao;
import com.miracle.bean.Test;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;
import java.util.List;
/**
* 功能描述：
*
* @Author: Miracle
* @Date: 2020/4/16 18:35
*/
@Repository
@Mapper
public interface TestDao {
Test getTestById(int id);
List<Test> getAllTest();
void insertTest(Test test);
void updateTestById(Test test);
}
TestService.java
package com.miracle.service;
import com.miracle.bean.Test;
import com.miracle.dao.TestDao;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
* 功能描述：
*
* @Author: Miracle
* @Date: 2020/4/16 19:33
*/
@Service
public class TestService {
@Autowired
private TestDao testDao;
public Test getTestById(int id){
return testDao.getTestById(id);
}
public List<Test> getAllTest() {
return testDao.getAllTest();
}
public void insertTest(Test test) {
testDao.insertTest(test);
}
public void updateTestById(Test test) {
testDao.updateTestById(test);
}
}
TestController.java
package com.miracle.controller;
import com.miracle.bean.Test;
import com.miracle.service.TestService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* 功能描述：
*
* @Author: Miracle
* @Date: 2020/4/16 17:09
*/
@RestController
@RequestMapping("/test")
public class TestController {
Logger logger = LoggerFactory.getLogger(TestController.class);
@Autowired
TestService testService;
@RequestMapping(value = "/getTest",method = RequestMethod.GET)
public Test getTest(){
Test test = new Test();
test.setName("Miracle");
test.setId(1);
test.setAge(22);
return test;
}
@RequestMapping(value = "/getAllTest",method = RequestMethod.GET)
public List<Test> getAllTest(){
return testService.getAllTest();
}
@RequestMapping(value = "/getTestById",method = RequestMethod.GET)
public Test getTestById(int id){
return testService.getTestById(id);
}
@RequestMapping(value = "/insertTest",method = RequestMethod.POST)
public void insertTest(@RequestBody Test test){
testService.insertTest(test);
}
@RequestMapping(value = "/updateTest",method = RequestMethod.POST)
public void updateTestById(@RequestBody Test test){
testService.updateTestById(test);
}
@RequestMapping(value = "/addTest",method = RequestMethod.POST)
public void addTest(@RequestBody Test test){
logger.info(test.getName()+"-"+test.toString());
}
}
mybatis-config.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<package name="com.miracle.bean"/>
</typeAliases>
<mappers>
<mapper resource="mybatis/mapper/TestMapper.xml"/>
</mappers>
</configuration>
TestMapper.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.miracle.dao.TestDao">
<select id="getTestById" parameterType="int" resultType="Test">
select id,name,age from test where id = #{id}
</select>
<select id="getAllTest" resultType="Test">
select id,name,age from test
</select>
<insert id="insertTest" parameterType="Test" useGeneratedKeys="true" keyColumn="id" keyProperty="id">
insert into test (name,age) values(#{name},#{age})
</insert>
<update id="updateTestById" parameterType="Test" >
update test set name=#{name},age=#{age} where id=#{id}
</update>
</mapper>
sql
DROP TABLE IF EXISTS `test`;
CREATE TABLE `test` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) DEFAULT NULL,
`age` int(11) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=latin1;
-- ----------------------------
-- Records of test
-- ----------------------------
INSERT INTO `test` VALUES ('1', 'm1', '11');
INSERT INTO `test` VALUES ('2', 'm2', '12');
INSERT INTO `test` VALUES ('3', 'm2', '12');
INSERT INTO `test` VALUES ('4', 'm4', '14');
INSERT INTO `test` VALUES ('5', 'm5', '15');
因为年轻，所有没有失败。
