[英]Is it possible in Spring MVC to have void handlers for requests?
Is it possible in Spring MVC to have void handler for request? 在Spring MVC中是否可能有用于请求的void处理程序?
Suppose I have a simple controller, which doesn't need to interact with any view. 假设我有一个简单的控制器,不需要与任何视图进行交互。
@Controller
@RequestMapping("/cursor")
public class CursorController {
@RequestMapping(value = "/{id}", method = PUT)
public void setter(@PathVariable("id") int id) {
AnswerController.setCursor(id);
}
}
UPD UPD
@Controller
@RequestMapping("/cursor")
public class CursorController {
@RequestMapping(value = "/{id}", method = PUT)
public ResponseEntity<String> update(@PathVariable("id") int id) {
AnswerController.setCursor(id);
return new ResponseEntity<String>(HttpStatus.NO_CONTENT);
}
}
you can return void
, then you have to mark the method with 您可以return void
,然后必须将方法标记为
@ResponseStatus(value = HttpStatus.OK)
you don't need @ResponseBody
@ResponseStatus(value = HttpStatus.OK)
您不需要@ResponseBody
@RequestMapping(value = "/updateSomeData" method = RequestMethod.POST)
@ResponseStatus(value = HttpStatus.OK)
public void defaultMethod(...) {
...
}
Only get methods return a 200 status code
implicity, all others you have do one of three things: 只有get方法隐式地返回200 status code
,所有其他方法都可以做以下三件事之一:
Return void and mark the method with @ResponseStatus(value = HttpStatus.OK)
返回void并使用@ResponseStatus(value = HttpStatus.OK)
标记该方法
Return An object and mark it with @ResponseBody
返回一个对象并用@ResponseBody
标记它
Return an HttpEntity
instance 返回一个HttpEntity
实例
Also refer this for interesting information . 另请参阅此以获得有趣的信息 。
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