Jeecg 实现RESTful风格

package org.jeecgframework.web.rest.controller;

import java.net.URI;

/**
* TSUser的Restful API的Controller.
*
* @author liuht
*/
@Controller
@RequestMapping(value = "/user")
public class UserRestController {

@Autowired
private UserService userService;

@Autowired
private Validator validator;

/**
* 访问地址：http://localhost:8080/jeecg/rest/user
* @return
*/
@RequestMapping(method = RequestMethod.GET)
@ResponseBody
public List<TSUser> list() {
List<TSUser> listUsers=userService.getList(TSUser.class);
return listUsers;
}

/**
* 访问地址：http://localhost:8080/jeecg/rest/user/{id}
* @param id
* @return
*/
@RequestMapping(value = "/{id}", method = RequestMethod.GET)
@ResponseBody
public ResponseEntity<?> get(@PathVariable("id") String id) {
TSUser task = userService.get(TSUser.class, id);
if (task == null) {
return new ResponseEntity(HttpStatus.NOT_FOUND);
}
return new ResponseEntity(task, HttpStatus.OK);
}

@RequestMapping(method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
public ResponseEntity<?> create(@RequestBody TSUser user, UriComponentsBuilder uriBuilder) {
//调用JSR303 Bean Validator进行校验，如果出错返回含400错误码及json格式的错误信息.
Set<ConstraintViolation<TSUser>> failures = validator.validate(user);
if (!failures.isEmpty()) {
return new ResponseEntity(BeanValidators.extractPropertyAndMessage(failures), HttpStatus.BAD_REQUEST);
}

//保存用户
userService.save(user);

//按照Restful风格约定，创建指向新任务的url, 也可以直接返回id或对象.
String id = user.getId();
URI uri = uriBuilder.path("/rest/user/" + id).build().toUri();
HttpHeaders headers = new HttpHeaders();
headers.setLocation(uri);

return new ResponseEntity(headers, HttpStatus.CREATED);
}

@RequestMapping(value = "/{id}", method = RequestMethod.PUT, consumes = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<?> update(@RequestBody TSUser user) {
//调用JSR303 Bean Validator进行校验，如果出错返回含400错误码及json格式的错误信息.
Set<ConstraintViolation<TSUser>> failures = validator.validate(user);
if (!failures.isEmpty()) {
return new ResponseEntity(BeanValidators.extractPropertyAndMessage(failures), HttpStatus.BAD_REQUEST);
}

//保存
userService.saveOrUpdate(user);

//按Restful约定，返回204状态码, 无内容. 也可以返回200状态码.
return new ResponseEntity(HttpStatus.NO_CONTENT);
}

@RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
@ResponseStatus(HttpStatus.NO_CONTENT)
public void delete(@PathVariable("id") String id) {
userService.deleteEntityById(TSUser.class, id);
}
}