SpringBoot+MyBatis 访问Mysql

一、引入依赖

SpringBoot版本

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.0.RELEASE</version>
    </parent>

在pom.xml引入mybatis-spring-boot-starter的依赖：

<!-- https://mvnrepository.com/artifact/org.mybatis.spring.boot/mybatis-spring-boot-starter -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.1</version>
        </dependency>

引入数据库连接依赖：

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

二、引入数据源

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/dbtest?useUnicode=true&characterEncoding=utf-8&useSSL=false
spring.datasource.username=root
spring.datasource.password=***

 

三、实体类

package com.yms.demo.domain.pojo;

public class Test {

    private Integer id;
    private String username;
    private String password;
    private String time;

   get...set...
}



import java.io.Serializable;

public class Result implements Serializable {

    private boolean isSuccess;
    private String message;

    public Result(boolean isSuccess, String message) {
        this.isSuccess = isSuccess;
        this.message = message;
    }

    get...set...
}


工具类：

import java.text.SimpleDateFormat;
import java.util.Date;

public class DateHelpler {
    private static String datePattern = "yyyy-MM-dd";
    private static String timePattern = "yyyy-MM-dd HH:mm";
    private static String dateMoth = "yyyy-MM";
    private static String timePattern2 = "yyyy-MM-dd HH:mm:ss";
    private static String timeForAlarm = "yyyy.MM.dd HH:mm:ss";
    private static String timePattern3 = "yyyy年MM月dd日HH时";

    public static String getDateNow() {
        Date date = new Date();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(timePattern2);
        String timeStampStr = simpleDateFormat.format(date);
        return timeStampStr;
    }
}

 

四、dao层

package com.yms.demo.dao;

import com.yms.demo.domain.pojo.Test;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface TestMapper {

    @Insert("insert into test (username,password,time)values(#{username}, #{password}, #{time})")
    Integer add(@Param("username") String username, @Param("password") String passwrd, @Param("time") String time);

    @Update("update test set password = #{password}, time = #{time} where username = #{username}")
    Integer update(@Param("username") String username, @Param("password") String password, @Param("time") String time);

    @Delete("delete from test where id = #{id}")
    Integer delete(@Param("id") Integer id);

    @Select("select * from test where id = #{id}")
    Test findOne(@Param("id") Integer id);

    @Select("select * from test")
    List<Test> findAll();

}

五、service层

package com.yms.demo.service;

import com.yms.demo.common.utils.DateHelpler;
import com.yms.demo.dao.TestMapper;
import com.yms.demo.domain.pojo.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class TestService{

    @Autowired
    private TestMapper testMapper;


    public Integer add(String username, String passwrd) {

        String time = DateHelpler.getDateNow();
        return testMapper.add(username,passwrd,time);
    }


    public Integer update(String username, String password) {
        String time = DateHelpler.getDateNow();
        return testMapper.update(username,password,time);
    }


    public Integer delete(Integer id) {
        return testMapper.delete(id);
    }


    public Test findOne(Integer id) {
        return testMapper.findOne(id);
    }


    public List<Test> findAll() {
        return testMapper.findAll();
    }

}

六、Webcontroller层

package com.yms.demo.web;

import com.yms.demo.domain.entity.Result;
import com.yms.demo.domain.pojo.Test;
import com.yms.demo.service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("/test")
public class TestController {

    @Autowired
    private TestService testService;

    @RequestMapping("/findAll")
    public List<Test> findAll() {
        return testService.findAll();
    }

    @RequestMapping("/findOne")
    public Test findOne(Integer id) {
        return testService.findOne(id);
    }

    @PostMapping("/add")
    public Result add(@RequestBody Test test) {

        try {
            testService.add(test.getUsername(),test.getPassword());
            return new Result(true,"add成功");
        } catch (Exception e) {
            return new Result(false,"add失败");
        }

    }
    @RequestMapping("/delete")
    public Result delete(Integer id) {

        try {
            testService.delete(id);
            return new Result(true,"delete成功");
        } catch (Exception e) {
            return new Result(false,"delete失败");
        }

    }

    @PostMapping("/update")
    public Result update(@RequestBody Test test) {

        try {
            testService.update(test.getUsername(),test.getPassword());
            return new Result(true,"update成功");
        } catch (Exception e) {
            return new Result(false,"update失败");
        }

    }

}