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Springboot演示小Demo
模拟数据库演示springboot小测试
1、编写一个实体类:user
1 package com.wisezone.test; 2 3 import java.io.Serializable; 4 5 public class User implements Serializable { 6 7 private Integer userId;//用户id 8 private String userName;//用户名 9 private String age;//用户年龄 10 private String address;//用户地址 11 12 public Integer getUserId() { 13 return userId; 14 } 15 public void setUserId(Integer userId) { 16 this.userId = userId; 17 } 18 19 public String getUserName() { 20 return userName; 21 } 22 public void setUserName(String userName) { 23 this.userName = userName; 24 } 25 26 public String getAge() { 27 return age; 28 } 29 public void setAge(String age) { 30 this.age = age; 31 } 32 33 public String getAddress() { 34 return address; 35 } 36 public void setAddress(String address) { 37 this.address = address; 38 } 39 40 }
2、编写一个dao:userDao
1 package com.wisezone.test; 2 3 import org.slf4j.Logger; 4 import org.slf4j.LoggerFactory; 5 import org.springframework.stereotype.Repository; 6 7 @Repository 8 public class UserDao { 9 private static final Logger logger = LoggerFactory.getLogger(UserDao.class); 10 11 public User findUser(String userName) { 12 logger.info("根据用户名查询:{}",userName); 13 User user = new User(); 14 user.setUserId(10); 15 user.setUserName("上海上海"); 16 user.setAge("20"); 17 user.setAddress("上海市浦东新区上浦路888弄888号888室"); 18 return user; 19 } 20 }
3、编写一个service:userService
1 package com.wisezone.test; 2 3 import org.springframework.beans.factory.annotation.Autowired; 4 import org.springframework.stereotype.Service; 5 6 @Service 7 public class UserService { 8 9 @Autowired 10 private UserDao userDao; 11 12 public User findUserByUserName(String userName) { 13 return userDao.findUser(userName); 14 } 15 }
4、编写一个controller:userController
1 package com.wisezone.test; 2 3 import org.springframework.beans.factory.annotation.Autowired; 4 import org.springframework.stereotype.Controller; 5 import org.springframework.web.bind.annotation.RequestMapping; 6 import org.springframework.web.bind.annotation.ResponseBody; 7 8 9 @RequestMapping("user") 10 @Controller 11 public class UserController 12 { 13 @Autowired 14 private UserService userService; 15 16 @RequestMapping("find") 17 @ResponseBody 18 public User findUser(String userName) { 19 20 return userService.findUserByUserName(userName); 21 } 22 }
5、main方法测试
1 package com.wisezone.test; 2 3 import org.springframework.boot.SpringApplication; 4 import org.springframework.boot.autoconfigure.SpringBootApplication; 5 6 @SpringBootApplication 7 public class Application { 8 9 public static void main(String[] args) { 10 SpringApplication.run(Application.class, args); 11 } 12 }
Console:
浏览器:http://localhost:8080/user/find/?userName=hello
Springboot演示小Demo
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