springboot mybatis整合

1：build.gradle 添加依赖包

compile group: 'org.postgresql', name: 'postgresql', version: '42.2.4'
compile group: 'org.mybatis.spring.boot', name: 'mybatis-spring-boot-starter', version: '1.3.0'

2：测试代码

（1）FwjlVo.java

@Data
public class FwjlVo {
    private Integer id;
    private String yhid;
    private String gnid;
    private String czsj;
    private String ip;
    private String content;
}

（2）FwjlDao.java

@Mapper
public interface FwjlDao {
    int add(FwjlVo fwjlVo);

    FwjlVo getFwjlById(int id);

    List<FwjlVo> getFwjlList();
}

（3）FwjlService.java

@Service
public interface FwjlService {
    boolean add(FwjlVo fwjlVo);

    FwjlVo getFwjlById(int id);

    List<FwjlVo> getFwjlList();
}

（4）FwjlServiceImpl.java

@Component
public class FwjlServiceImpl implements FwjlService{
    @Resource
    private FwjlDao fwjlDao;

    @Override
    public boolean add(FwjlVo fwjlVo) {
        return fwjlDao.add(fwjlVo) > 0;
    }

    @Override
    public FwjlVo getFwjlById(int id) {
        return fwjlDao.getFwjlById(id);
    }

    @Override
    public List<FwjlVo> getFwjlList() {
        return fwjlDao.getFwjlList();
    }
}

3：配置文件

（1）application.properties

#===============PostgreSQL config=====================
spring.datasource.url=jdbc:postgresql://127.0.0.1:5432/test
spring.datasource.username=test
spring.datasource.password=test
spring.datasource.driverClassName=org.postgresql.Driver

#===============Mybatis config=====================
mybatis.mapper-locations=classpath:mapper/*Mapper.xml
mybatis.type-aliases-package=com.example.demo.xtxx

（2）FwjlMapper.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.example.demo.xtxx.FwjlDao">
    <resultMap id="BaseResultMap" type="com.example.demo.xtxx.FwjlVo" >
        <id column="id" property="id" jdbcType="INTEGER" />
        <result column="yhid" property="yhid" jdbcType="VARCHAR" />
        <result column="gnid" property="gnid" jdbcType="VARCHAR" />
        <result column="czsj" property="czsj" jdbcType="VARCHAR" />
        <result column="ip" property="ip" jdbcType="VARCHAR" />
        <result column="content" property="content" jdbcType="VARCHAR" />
    </resultMap>

    <insert id="add" parameterType="com.example.demo.xtxx.FwjlVo">
        INSERT  INTO xtxx_fwjl(yhid,gnid,ip,content)
        VALUES (#{yhid,jdbcType=VARCHAR},#{gnid,jdbcType=VARCHAR},#{ip,jdbcType=VARCHAR},#{content,jdbcType=VARCHAR})
    </insert>

    <select id="getFwjlById" parameterType="java.lang.Integer"  resultMap="BaseResultMap">
        SELECT id,yhid,gnid,to_char(czsj, 'YYYY-MM-DD HH24:MI:SS') czsj,ip,content FROM xtxx_fwjl WHERE id=#{id,jdbcType=INTEGER}
    </select>

    <select id="getFwjlList" resultMap="BaseResultMap">
        SELECT id,yhid,gnid,to_char(czsj, 'YYYY-MM-DD HH24:MI:SS') czsj,ip,content FROM xtxx_fwjl
    </select>
</mapper>

4：测试

　　@Autowired
    FwjlService fwjlService;

    @RequestMapping(
            value = "addFwjl",
            method = RequestMethod.POST
    )
    public String addFwjl(@RequestBody FwjlVo vo){
        boolean flag = fwjlService.add(vo);

        int no = 0;
        String msg = "保存失败";

        if(flag){
            no = 1;
            msg = "保存成功";
        }

        Map<String,Object> map = new HashMap<String,Object>();
        map.put("no", no);
        map.put("msg", msg);

        Gson gson = new Gson();

        return gson.toJson(map);
    }

    @RequestMapping(
            value = "getFwjl",
            method = RequestMethod.GET
    )
    public String getFwjl(@RequestParam(required = true) int id){
        FwjlVo fwjlVo = fwjlService.getFwjlById(id);
        Gson gson = new Gson();

        return gson.toJson(fwjlVo);
    }

    @RequestMapping(
            value = "getFwjlList",
            method = RequestMethod.GET
    )
    public String getFwjlList(){
        List<FwjlVo> list = fwjlService.getFwjlList();
        Gson gson = new Gson();

        return gson.toJson(list);
    }