配置 pom.xml

    <dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>1.3.1</version>
    </dependency>

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

        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin
 
>
            <!-- mybatis generator 自動生成程式碼外掛 -->
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <configuration
 
>
                    <configurationFile>${basedir}/src/main/resources/generator/generatorConfig.xml</configurationFile>
                    <overwrite>true</overwrite>
                    <verbose>true</verbose>
                </configuration>
            </plugin>
        </plugins>
    </build>

配置 application.yml

server:
  port: 8081
spring:
    datasource:
        name: test
        url: jdbc:mysql://101.201.117.102:3306/smb-web?useUnicode=true&useSSL=false&characterEncoding=UTF-8
        username: root
        password: sp6161266
        # 使用druid資料來源
        type: com.alibaba.druid.pool.DruidDataSource
        driver-class-name: com.mysql.jdbc.Driver
        filters: stat
        maxActive: 20
        initialSize: 1
        maxWait: 60000
        minIdle: 1
        timeBetweenEvictionRunsMillis: 60000
        minEvictableIdleTimeMillis: 300000
        validationQuery: select 'x'
        testWhileIdle: true
        testOnBorrow: false
        testOnReturn: false
        poolPreparedStatements: true
        maxOpenPreparedStatements: 20

mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.shaonaozu.demo100.*.model

專案完整結構

Test表

CREATE TABLE `test` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(255) DEFAULT '',
  `content` varchar(255) DEFAULT '',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;

Test實體類

package com.shaonaozu.demo100.test.model;

public class Test {
    private Integer id;

    private String title;

    private String content;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title == null ? null : title.trim();
    }

    public String getContent() {
        return content;
    }

    public void setContent(String content) {
        this.content = content == null ? null : content.trim();
    }
}

TestMapper.java

package com.shaonaozu.demo100.test.dao;

import com.shaonaozu.demo100.test.model.Test;
import org.springframework.stereotype.Component;

@Component
public interface TestMapper {
    int deleteByPrimaryKey(Integer id);

    int insert(Test record);

    int insertSelective(Test record);

    Test selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(Test record);

    int updateByPrimaryKey(Test record);
}

TestMapper.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="com.shaonaozu.demo100.test.dao.TestMapper" >
  <resultMap id="BaseResultMap" type="com.shaonaozu.demo100.test.model.Test" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="title" property="title" jdbcType="VARCHAR" />
    <result column="content" property="content" jdbcType="VARCHAR" />
  </resultMap>
  <sql id="Base_Column_List" >
    id, title, content
  </sql>
  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    select 
    <include refid="Base_Column_List" />
    from test
    where id = #{id,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from test
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <insert id="insert" parameterType="com.shaonaozu.demo100.test.model.Test" >
    insert into test (id, title, content
      )
    values (#{id,jdbcType=INTEGER}, #{title,jdbcType=VARCHAR}, #{content,jdbcType=VARCHAR}
      )
  </insert>
  <insert id="insertSelective" parameterType="com.shaonaozu.demo100.test.model.Test" >
    insert into test
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        id,
      </if>
      <if test="title != null" >
        title,
      </if>
      <if test="content != null" >
        content,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        #{id,jdbcType=INTEGER},
      </if>
      <if test="title != null" >
        #{title,jdbcType=VARCHAR},
      </if>
      <if test="content != null" >
        #{content,jdbcType=VARCHAR},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.shaonaozu.demo100.test.model.Test" >
    update test
    <set >
      <if test="title != null" >
        title = #{title,jdbcType=VARCHAR},
      </if>
      <if test="content != null" >
        content = #{content,jdbcType=VARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.shaonaozu.demo100.test.model.Test" >
    update test
    set title = #{title,jdbcType=VARCHAR},
      content = #{content,jdbcType=VARCHAR}
    where id = #{id,jdbcType=INTEGER}
  </update>
</mapper>

TestService

package com.shaonaozu.demo100.test.service;

import com.shaonaozu.demo100.base.R;
import com.shaonaozu.demo100.base.enums.REnums;
import com.shaonaozu.demo100.base.exception.RException;
import com.shaonaozu.demo100.test.dao.TestMapper;
import com.shaonaozu.demo100.test.model.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class TestService {

    @Autowired
    private TestMapper testMapper;

    public R test1(Integer id) throws Exception {
        R r = new R();
        Test test = testMapper.selectByPrimaryKey(id);
        if (test == null) {
            throw new RException(REnums.NO_DATA);
        }
        return r.setData(test);
    }

    public void test2(Test test) throws Exception {
        testMapper.insertSelective(test);
    }
}

TestServiceTest.java

package com.shaonaozu.demo100.test.service;

import com.shaonaozu.demo100.base.R;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;


@RunWith(SpringRunner.class)
@SpringBootTest
public class TestServiceTest {

    @Autowired
    private TestService testService;


    @Test
    public void test1() throws Exception {
        R r = testService.test1(3);
        System.out.println(r.toString());
       // Assert.assertEquals(new Integer(11), new Integer(9));
    }

    @Test
    public void test2() throws Exception {
        com.shaonaozu.demo100.test.model.Test test = new com.shaonaozu.demo100.test.model.Test();
        test.setTitle("(*^_^*)");
        test.setContent("嘻嘻1111111111");
        testService.test2(test);

    }

}

執行 test2() 後，資料表結果：