SpringBoot整合Mybatis-XML版

Pom

<!--jdbc start-->
<dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!--jdbc end-->
<!--mybatis-starter start-->
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.1.2</version>
</dependency>
<!--mybatis-starter end -->
<!-- druid start -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version>
</dependency>
<!--druid end-->
<!--mysql驱动 start-->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
</dependency>
<!--mysql驱动 end-->
<!--log4j start-->
<dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>1.2.17</version>
</dependency>
<!--log4j end-->

yml

spring:
  datasource:
    #   数据源基本配置
    url: jdbc:mysql://172.16.0.192:3306/mybatis
    username: root
    password: 123456
    driver-class-name: com.mysql.cj.jdbc.Driver
    initialization-mode: always #表示始终都要执行初始化，2.x以上版本需要加上这行配置
    schema:
      - classpath:sql/employee.sql
      - classpath:sql/department.sql
    type: com.alibaba.druid.pool.DruidDataSource
    #   数据源其他配置
    initialSize: 5
    minIdle: 5
    maxActive: 20
    maxWait: 60000
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: SELECT 1 FROM DUAL
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    poolPreparedStatements: true
    #   配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
    filters: stat,wall,log4j
    maxPoolPreparedStatementPerConnectionSize: 20
    useGlobalDataSourceStat: true
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500


mybatis:
  config-location: classpath:mybatis/mybatis-config.xml #指定全局配置文件的位置
  mapper-locations: classpath:mybatis/mapper/*.xml  #指定sql映射文件的位置

entity

package cn.zysheep.springboot.entity;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Employee {
    private Integer id;
    private String lastName;
    private Integer gender;
    private String email;
    private Integer dId;
}

Mapper

package cn.zysheep.springboot.mapper;

import cn.zysheep.springboot.entity.Employee;

public interface EmployeeMapper {
    public Employee getEmployeeById(int id);

    public int insertEmployee(Employee employee);
}

EmployeeMapper.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="cn.zysheep.springboot.mapper.EmployeeMapper">
    <select id="getEmployeeById" resultType="cn.zysheep.springboot.entity.Employee">
        select * from employee where id = #{id}
    </select>

    <insert id="insertEmployee" parameterType="cn.zysheep.springboot.entity.Employee">
        insert into employee(lastName,email,gender,d_id) values (#{lastName},#{email},#{gender},#{dId})
    </insert>
</mapper>

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>
    <settings>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        # 驼峰映射
    </settings>
</configuration>

config

package cn.zysheep.springboot.config;

import org.apache.ibatis.session.Configuration;
import org.mybatis.spring.boot.autoconfigure.ConfigurationCustomizer;
import org.springframework.context.annotation.Bean;

//自定义MyBatis的配置规则；给容器中添加一个ConfigurationCustomizer；
@org.springframework.context.annotation.Configuration
public class MybatisConfig {

    @Bean
    public ConfigurationCustomizer configurationCustomizer() {
        return new ConfigurationCustomizer() {
            @Override
            public void customize(Configuration configuration) {
                configuration.setMapUnderscoreToCamelCase(true);
            }
        };
    }
}

controller

package cn.zysheep.springboot.controller;


import cn.zysheep.springboot.entity.Employee;
import cn.zysheep.springboot.mapper.EmployeeMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class EmplyeeController {

    @Autowired
    EmployeeMapper employeeMapper;

    @GetMapping("/emp/{id}")
    public Employee getEmployeeById(@PathVariable("id") int id) {
        return employeeMapper.getEmployeeById(id);
    }

    @GetMapping("/emp")
    public Employee insertEmployee(Employee employee) {
        employeeMapper.insertEmployee(employee);
        return employee;
    }
}

@MapperScan

@MapperScan("cn.zysheep.springboot.mapper")
@SpringBootApplication
public class Springboot06DataMybatisXmlApplication {

    public static void main(String[] args) {
        SpringApplication.run(Springboot06DataMybatisXmlApplication.class, args);
    }

}

sql

/*
Navicat MySQL Data Transfer

Source Server         : 本地
Source Server Version : 50528
Source Host           : 127.0.0.1:3306
Source Database       : restful_crud

Target Server Type    : MYSQL
Target Server Version : 50528
File Encoding         : 65001

*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for employee
-- ----------------------------
DROP TABLE IF EXISTS `employee`;
CREATE TABLE `employee` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `lastName` varchar(255) DEFAULT NULL,
  `email` varchar(255) DEFAULT NULL,
  `gender` int(2) DEFAULT NULL,
  `d_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;