摘要：歷史文章如何在安裝最新版安裝安裝最新版教程內(nèi)容備注本系列開發(fā)工具均為構(gòu)建項(xiàng)目，選擇四個(gè)基本的依賴。層與其實(shí)現(xiàn)，這個(gè)比較簡(jiǎn)單，一般做過項(xiàng)目的都了解層，我這邊構(gòu)建了一個(gè)方法，通過獲取信息。

本博客 貓叔的博客，轉(zhuǎn)載請(qǐng)申明出處
本系列教程為HMStrange項(xiàng)目附帶。

如何在VMware12安裝Centos7.6最新版

Centos7.6安裝Java8

Centos7.6安裝MySQL+Redis（最新版）

備注：本系列開發(fā)工具均為IDEA

大家可以看看pom文件

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.1.4.RELEASE
         
    
    com.myself.mybatis
    datademo
    0.0.1-SNAPSHOT
    datademo
    Demo project for Spring Boot

    
        1.8
    

    
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.mybatis.spring.boot
            mybatis-spring-boot-starter
            2.0.1
        

        
            mysql
            mysql-connector-java
            runtime
        
        
            org.projectlombok
            lombok
            true
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        
    

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

DDL

CREATE TABLE `t_msg` (
  `id` int(11) NOT NULL,
  `message` varchar(255) DEFAULT NULL COMMENT "信息",
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

spring:
  datasource:
    url: jdbc:mysql://192.168.192.133:3306/datademo?characterEncoding=utf-8&useSSL=false
    username: root
    password: password
    driver-class-name: com.mysql.cj.jdbc.Driver
mybatis:
  mapper-locations: classpath*:mapper/*Mapper.xml
  type-aliases-package: com.myself.mybatis.entity

package com.myself.mybatis.entity;

import lombok.Data;

import java.io.Serializable;

/**
 * Created by MySelf on 2019/4/9.
 */
@Data
public class TMsg implements Serializable {

    private Integer id;

    private String message;

}

package com.myself.mybatis.mapper;

import com.myself.mybatis.entity.TMsg;
import org.apache.ibatis.annotations.Mapper;

/**
 * Created by MySelf on 2019/4/9.
 */
@Mapper
public interface TMsgMapper {

    public TMsg findById(Integer id);

}

    
        SELECT id,message from t_msg WHERE id = #{id}
    

我這邊就單純一個(gè)方法，大家可以擴(kuò)展自己的方法。

package com.myself.mybatis.service;

import com.myself.mybatis.entity.TMsg;

/**
 * Created by MySelf on 2019/4/9.
 */
public interface TMsgService {

    public TMsg findById(Integer id);

}

package com.myself.mybatis.service.impl;

import com.myself.mybatis.entity.TMsg;
import com.myself.mybatis.mapper.TMsgMapper;
import com.myself.mybatis.service.TMsgService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * Created by MySelf on 2019/4/9.
 */
@Service
public class TMsgServiceImpl implements TMsgService {

    @Autowired
    private TMsgMapper tMsgMapper;

    @Override
    public TMsg findById(Integer id) {
        return tMsgMapper.findById(id);
    }
}

package com.myself.mybatis.controller;

import com.myself.mybatis.entity.TMsg;
import com.myself.mybatis.service.TMsgService;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * Created by MySelf on 2019/4/9.
 */
@RestController
@RequestMapping("/msg")
public class TMsgController {

    @Autowired
    private TMsgService tMsgService;

    @GetMapping("/getMsg")
    public String getMsg(@Param("id") Integer id){
        TMsg tMsg = tMsgService.findById(id);
        return tMsg.getMessage();
    }

}

歡迎到HMStrange項(xiàng)目進(jìn)行下載：https://github.com/UncleCatMy...

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