spring boot+mybatis操作数据库

 使用的是阿里的驱动包,数据库是mysql

首先是pom文件:

    4.0.0

    com.springboot
    springboot
    0.0.1-SNAPSHOT
    jar

    springboot
    Demo project for Spring Boot

    
        org.springframework.boot
        spring-boot-starter-parent
        2.0.3.RELEASE
         
    

    
        UTF-8
        UTF-8
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter-jdbc
        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
            mysql
            mysql-connector-java
            runtime
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
        
            com.alibaba
            druid
            1.0.25
        
        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            1.3.1
        
    

     
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        

    

然后是配置文件:application.yml  这个文件是自己创建的

spring:
  datasource:
    url: ****
    driverClassName: *****
    username: ****
    password: ****
    type: com.alibaba.druid.pool.DruidDataSource
mybatis:
  type-aliases-package: com.springboot.springboot.model
  mapper-locations: classpath:*/*.xml

springboot的入口类:

package com.springboot.springboot;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.springboot.springboot.dao")
public class SpringbootApplication {

    public static void main(String[] args) {

        SpringApplication.run(SpringbootApplication.class, args);
    }
}

model 实体类:

package com.springboot.springboot.model;

/**
 * @Title: Student
 * @Package com.springboot.springboot.model
 * * @author  邓玉龙
 * @Description:
 * @date 2018-06-15 11:05
 */

public class Student {
    private int id;
    private String name;
    private int age;
    private String sex;

    public Student(){}
    public Student(int id, String name, int age, String sex) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.sex = sex;
    }

    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;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    @Override
    public String toString() {
        return "Student{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", age=" + age +
                ", sex='" + sex + '\'' +
                '}';
    }
}

Mapper.xml文件:

    
        
        
        
        
    

    
        insert into Student(ID,Name,Age,Sex)values (
        #{id,jdbcType=INTEGER},#{name,jdbcType=VARCHAR},
        #{age,jdbcType=INTEGER},#{sex,jdbcType=VARCHAR})
    

Dao 的接口

package com.springboot.springboot.dao;

import com.springboot.springboot.model.Student;

import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

/**
 * @Title: StudentMapper
 * @Package com.springboot.springboot.dao
 * * @author  邓玉龙
 * @Description:
 * @date 2018-06-15 11:16
 */


public interface StudentMapper {

    void saveStudent(Student student);
}

Service实现类和接口:

package com.springboot.springboot.service;

import com.springboot.springboot.model.Student;

/**
 * @Title: StudentService
 * @Package com.springboot.springboot.service
 * * @author  邓玉龙
 * @Description:
 * @date 2018-06-15 11:31
 */
public interface StudentService {
     void saveStudent(Student student);
}

 

package com.springboot.springboot.service;

import com.springboot.springboot.dao.StudentMapper;
import com.springboot.springboot.model.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;

/**
 * @Title: StudentServiceImpl
 * @Package com.springboot.springboot.service
 * * @author  邓玉龙
 * @Description:
 * @date 2018-06-15 11:31
 */

@Transactional
@Service
public class StudentServiceImpl implements StudentService{
    @Resource
    private StudentMapper studentMapper;

    public void saveStudent(Student student){
        System.out.println("保存数据开始");
        student.setId(1);
        student.setName("小美眉");
        student.setAge(18);
        student.setSex("36E");
        studentMapper.saveStudent(student);

    }
}

最后是controller层:

package com.springboot.springboot.controller;

import com.springboot.springboot.model.Student;
import com.springboot.springboot.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Title: StudentController
 * @Package com.springboot.springboot.controller
 * * @author  邓玉龙
 * @Description:
 * @date 2018-06-15 15:08
 */
@RestController
public class StudentController {
    @Autowired
    private StudentService studentService;
    @GetMapping(value="/save")
    public void sTest(){

        studentService.saveStudent(new Student());
    }

}

最后启动入口类然后访问这个方法: http://localhost:8080/save

 

https://blog.csdn.net/qq_38128218/article/details/80706447