File --> new -->project -->Spring Initalizr -->next 选择Spring web 然后finish创建项目
第二步：在src/main 目录下创建webapp （第二步为了验证创建项目是否正常） 第三步：写接口文件 创建实体类 UserBean
package com.example.demo.entiy;
public class UserBean {
private String name;
private String password;
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public String getPassword(){
return password;
}
public void setPassword(String password){
this.password = password;
}
public String toString(){
return "{name:'"+name+"',"+"password:'"+password+"'}";
}
}
创建 UserService
package com.example.demo.service;
import com.example.demo.entiy.UserBean;
import org.springframework.stereotype.Service;
@Service
public interface UserService {
public UserBean getUserInfo();
public String setUserInfo(String username, String password);
}
创建 UserServiceImpl
package com.example.demo.impl;
import com.example.demo.entiy.UserBean;
import com.example.demo.service.UserService;
import org.springframework.stereotype.Service;
@Service
public class UserServiceImpl implements UserService {
public UserBean getUserInfo(){
UserBean user = new UserBean();
user.setName("jack");
user.setPassword("12341234");
return user;
}
@Override
public String setUserInfo(String username, String password) {
if(username == null || username.isEmpty()){
return "用户名不可为空";
}
if(password == null || password.isEmpty()){
return "密码不可为空";
}
return "登陆成功";
}
}
创建 UserController
package com.example.demo.control;
import com.example.demo.entiy.*;
import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
@RestController
public class UserController {
@Resource
UserService userService;
@RequestMapping(value = "/getUserItem")
public String getUserItem(){
UserBean user = userService.getUserInfo();
return user.toString();
}
@RequestMapping(value = "/login")
@ResponseBody
public String login(HttpServletRequest request, String username, String password){
String s = userService.setUserInfo(username, password);
return s;
}
}
请求地址:
http://localhost:8080/getUserItem
http://localhost:8080/login (post方式 参数：username，password)
