我要评论<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-web</artifactid>
</dependency>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-test</artifactid>
<scope>test</scope>
</dependency>
<dependency>
<groupid>mysql</groupid>
<artifactid>mysql-connector-java</artifactid>
<version>5.1.47</version>
</dependency>
<dependency>
<groupid>org.mybatis.spring.boot</groupid>
<artifactid>mybatis-spring-boot-starter</artifactid>
<version>1.3.0</version>
</dependency>
<dependency>
<groupid>com.alibaba</groupid>
<artifactid>druid-spring-boot-starter</artifactid>
<version>1.1.16</version>
</dependency>
<dependency>
<groupid>org.projectlombok</groupid>
<artifactid>lombok</artifactid>
<version>1.18.10</version>
</dependency>
package com.example.mybatis.repository;
import com.example.mybatis.domain.smscoupon;
import org.apache.ibatis.annotations.param;
/**
* @author shanks on 2019-11-09
*/
public interface smscoupondao {
smscoupon querybyid(@param("id") integer id);
}
<?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.example.mybatis.repository.smscoupondao">
<resultmap type="com.example.mybatis.domain.smscoupon" id="smscouponmap">
<result property="id" column="id" jdbctype="integer"/>
<result property="type" column="type" jdbctype="integer"/>
<result property="name" column="name" jdbctype="varchar"/>
<result property="platform" column="platform" jdbctype="integer"/>
<result property="count" column="count" jdbctype="integer"/>
<result property="amount" column="amount" jdbctype="numeric"/>
<result property="perlimit" column="per_limit" jdbctype="integer"/>
<result property="minpoint" column="min_point" jdbctype="numeric"/>
<result property="starttime" column="start_time" jdbctype="timestamp"/>
<result property="endtime" column="end_time" jdbctype="timestamp"/>
<result property="usetype" column="use_type" jdbctype="integer"/>
<result property="note" column="note" jdbctype="varchar"/>
<result property="publishcount" column="publish_count" jdbctype="integer"/>
<result property="usecount" column="use_count" jdbctype="integer"/>
<result property="receivecount" column="receive_count" jdbctype="integer"/>
<result property="enabletime" column="enable_time" jdbctype="timestamp"/>
<result property="code" column="code" jdbctype="varchar"/>
<result property="memberlevel" column="member_level" jdbctype="integer"/>
</resultmap>
<!--查询单个-->
<select id="querybyid" resultmap="smscouponmap">
select
id, type, name, platform, count, amount, per_limit, min_point, start_time, end_time, use_type, note, publish_count, use_count, receive_count, enable_time, code, member_level
from mall.sms_coupon
where id = #{id}
</select>
</mapper>
package com.example.mybatis.config;
import org.mybatis.spring.annotation.mapperscan;
import org.springframework.context.annotation.configuration;
/**
* @author shanks on 2019-11-09
*/
@configuration
@mapperscan("com.example.mybatis.repository")
public class mybatisconfig {
}
spring:
datasource:
#数据源基本配置
url: jdbc:mysql://localhost:3306/mall?allowmultiqueries=true&characterencoding=utf-8&usessl=false
type: com.alibaba.druid.pool.druiddatasource
driver-class-name: com.mysql.jdbc.driver
username: root
password: 123456
druid:
#连接池配置， 初始化大小，最小，最大
initial-size: 5
max-active: 10
#配置获取连接等待超时的时间
max-wait: 60000
#配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
time-between-eviction-runs-millis: 60000
#配置一个连接在池中最小生存的时间，单位是毫秒
min-evictable-idle-time-millis: 300000
validation-query: select 1
test-while-idle: true
test-on-borrow: false
test-on-return: false
mybatis:
mapper-locations: classpath:mybatis/mapper/*.xml
package com.example.mybatis.web;
import com.example.mybatis.domain.smscoupon;
import com.example.mybatis.service.smscouponservice;
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;
/**
* @author shanks on 2019-11-09
*/
@restcontroller
@requestmapping("/voucher/web/")
public class smscouponcontroller {
@autowired
smscouponservice smscouponservice;
@requestmapping("/querysmscoupondetail")
public smscoupon querysmscoupondetail(@requestparam("id") int id){
smscoupon smscoupon = smscouponservice.querysmscoupondetail(id);
return smscoupon;
}
}
package com.example.mybatis.service;
import com.example.mybatis.domain.smscoupon;
/**
* @author shanks on 2019-11-09
*/
public interface smscouponservice {
smscoupon querysmscoupondetail(int id);
}
package com.example.mybatis.service.impl;
import com.example.mybatis.domain.smscoupon;
import com.example.mybatis.repository.smscoupondao;
import com.example.mybatis.service.smscouponservice;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.service;
/**
* @author shanks on 2019-11-09
*/
@service
public class smscouponserviceimpl implements smscouponservice {
@autowired
private smscoupondao smscoupondao;
@override
public smscoupon querysmscoupondetail(int id) {
smscoupon smscoupon = smscoupondao.querybyid(id);
return smscoupon;
}
}
package com.example.mybatis;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
@springbootapplication
public class demomybatisapplication {
public static void main(string[] args) {
springapplication.run(demomybatisapplication.class, args);
}
}
源代码：https://gitee.com/shanksv/springboot-mybatis.git
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