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package cn.itcast.mybatis.controller;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.http.HttpStatus;

import org.springframework.http.ResponseEntity;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.ResponseBody;

import cn.itcast.mybatis.pojo.User;

import cn.itcast.mybatis.service.NewUserService;

@RequestMapping("restful/user")

@Controller

public class RestUserController {

@Autowired

private NewUserService newUserService;

/**

* 根据用户id查询用户数据

*

* @param id

* @return

*/

@RequestMapping(value = "{id}", method = RequestMethod.GET)

@ResponseBody

public ResponseEntity queryUserById(@PathVariable("id") Long id) {

try {

User user = this.newUserService.queryUserById(id);

if (null == user) {

// 资源不存在，响应404

return ResponseEntity.status(HttpStatus.NOT_FOUND).body(null);

}

// 200

// return ResponseEntity.status(HttpStatus.OK).body(user);

return ResponseEntity.ok(user);

} catch (Exception e) {

e.printStackTrace();

}

// 500

return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);

}

/**

* 新增用户

*

* @param user

* @return

*/

@RequestMapping(method = RequestMethod.POST)

public ResponseEntity saveUser(User user) {

try {

this.newUserService.saveUser(user);

return ResponseEntity.status(HttpStatus.CREATED).build();

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

// 500

return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);

}

/**

* 更新用户资源

*

* @param user

* @return

*/

@RequestMapping(method = RequestMethod.PUT)

public ResponseEntity updateUser(User user) {

try {

this.newUserService.updateUser(user);

return ResponseEntity.status(HttpStatus.NO_CONTENT).build();

} catch (Exception e) {

e.printStackTrace();

}

// 500

return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);

}

/**

* 删除用户资源

*

* @param user

* @return

*/

@RequestMapping(method = RequestMethod.DELETE)

public ResponseEntity deleteUser(@RequestParam(value = "id", defaultValue = "0") Long id) {

try {

if (id.intValue() == 0) {

// 请求参数有误

return ResponseEntity.status(HttpStatus.BAD_REQUEST).build();

}

this.newUserService.deleteUserById(id);

// 204

return ResponseEntity.status(HttpStatus.NO_CONTENT).build();

} catch (Exception e) {

e.printStackTrace();

}

// 500

return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);

}

}