Mybatis通用Mapper(springboot环境下使用)

1、添加pom文件依赖

<!--mapper -->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>1.1.4</version>
</dependency>

2、实体类

package com.ahut.entity;

import java.io.Serializable;
import java.util.Date;

import com.ahut.core.enums.SexEnum;

/**
*
* @ClassName: Demo
* @Description:
* @author cheng
* @date 2017年11月21日 下午8:32:59
*/
public class Demo implements Serializable {

/**
*
*/
private static final long serialVersionUID = 4122974131420281791L;

private Date birthDay;
private String userName;
private int age;
private String id;
private SexEnum sex;

public Demo() {
super();
// TODO Auto-generated constructor stub
}

@Override
public String toString() {
return "Demo [id=" + id + ", userName=" + userName + ", age=" + age + ", birthDay=" + birthDay + ", sex=" + sex
+ "]";
}

public String getId() {
return id;
}

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

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public Date getBirthDay() {
return birthDay;
}

public void setBirthDay(Date birthDay) {
this.birthDay = birthDay;
}

public SexEnum getSex() {
return sex;
}

public void setSex(SexEnum sex) {
this.sex = sex;
}

}

3、dao层

package com.ahut.mapper;

import com.ahut.entity.Demo;

import tk.mybatis.mapper.common.Mapper;

/**
*
* @ClassName: DemoWithNoXmlMapper
* @Description:
* @author cheng
* @date 2017年11月22日 下午4:34:13
*/
public interface DemoWithNoXmlMapper extends Mapper<Demo> {

}

4、service层

package com.ahut.service;

import java.util.List;

import com.ahut.entity.Demo;

/**
*
* @ClassName: DemoWithNoXmlService
* @Description:
* @author cheng
* @date 2017年11月22日 下午4:34:09
*/
public interface DemoWithNoXmlService {

/**
*
* @Title: selectAll
* @Description: 查询
* @return
*/
List<Demo> selectAll();
}

package com.ahut.serviceimpl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.ahut.entity.Demo;
import com.ahut.mapper.DemoWithNoXmlMapper;
import com.ahut.service.DemoWithNoXmlService;

/**
*
* @ClassName: DemoWithNoXmlServiceImpl
* @Description:
* @author cheng
* @date 2017年11月22日 下午4:37:01
*/
@Service
@Transactional
public class DemoWithNoXmlServiceImpl implements DemoWithNoXmlService {

@Autowired
private DemoWithNoXmlMapper dao;

/**
*
*/
@Override
public List<Demo> selectAll() {
return dao.selectAll();
}

}

5、测试

package com.ahut.serviceimpl;

import java.util.List;

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;

import com.ahut.entity.Demo;

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

@Autowired
private DemoWithNoXmlServiceImpl service;

/**
*
* @Title: testSelectAll
* @Description:
*/
@Test
public void testSelectAll() {
int resultNum = 0;
List<Demo> demoList = service.selectAll();
for (Demo demo : demoList) {
System.out.println("" + (++resultNum));
System.out.println(demo);
}
}

}

SELECT birth_day,user_name,age,id,sex FROM demo