Spring Boot学习之旅：（十五）使用JdbcTemplate

在原有的基础上添加 mysql 连接和jpa 依赖

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

创建一个model

package com.wen.boot.model;

import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

import com.alibaba.fastjson.annotation.JSONField;

@Entity
public class User {
private int id;
private String name;
private int age;
@JSONField(format="yyyy-mm-dd HH:mm")
private Date createTime;
private String remakes;

/** serialize  是否需要序列化
* @return the remakes
*/
@JSONField(serialize=false)
public String getRemakes() {
return remakes;
}

public void setRemakes(String remakes) {
this.remakes = remakes;
}

public Date getCreateTime() {
return createTime;
}

public void setCreateTime(Date createTime) {
this.createTime = createTime;
}

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
public int getId() {
return id;
}

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

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

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

}

dao

public interface IUserDao {
public User getUserById(int id);
}

dao 实现

@Repository("userDao")
public class UserDaoImpl implements IUserDao {

@Resource
private JdbcTemplate jdbcTemplate;
public User getUserById(int id) {
String sql="select * from user where id=?";
RowMapper<User> user=new BeanPropertyRowMapper<User>(User.class);
return jdbcTemplate.queryForObject(sql,user,id);

}
}

service

public interface IUserService {
public User getUserById(int id);
}

service 实现

@Service
public class UserServiceImpl implements  IUserService{

@Resource(name="userDao")
private IUserDao userDao;
public User getUserById(int id) {
return userDao.getUserById(id);
}
}

controller

@RestController
@RequestMapping("/user")
public class HelloContreller {
private Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
public IUserService userService;
@GetMapping("/{id}")
public User getUser(@PathVariable int id) {

return userService.getUserById(id);
}
}

启动工程 浏览器输入

http://localhost:8080/user/1

查看查询结果



本片文章只做整合JdbcTemplate 只做了简单的查询 如果还要实现其他的方法可以参考

http://www.cnblogs.com/heyongjun1997/p/5964256.html 这篇博客

文章地址：http://www.haha174.top/article/details/257327

项目源码： https://github.com/haha174/boot.git