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 list() {
		List 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> 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> 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);
	}
}