java - 在运行时创建@RestController

Question

我在使用 REST 服务器和 REST 客户端的应用程序中使用 Spring Boot。当我让人们选择 URL 映射时，就会出现问题，因为那时我需要使用此 URL 映射动态创建 REST Controller :

@SpringBootApplication
public static void main(String[] args){
  SpringApplication.run(MyClass.class);
  String urlMapping = "/url/url";
  CreateNewRestController c = new CreateNewRestController(urlMapping);
}

@RestController
public class CreateNewRestController{
   String url;
   public CreateNewRestController(String url){
      this.url = url
   }

   @RequestMapping(value = this.url,method = RequestMethod.GET)
   public String getHello(){
       return "Hello";
   }
}

“当您可以在 RequestMapping 中使用常量字符串时，为什么还要使用 url 变量？”你可能会问。但这是一个简单的示例，我需要使用变量参数创建 RequestMapping。

Answer 1

Github link - here

我找到了我的问题的答案，也许是实时使用 RequestMapping 的解决方案。我创建了一个 RestController，它接受所有 HTTP 请求，请求请求 HashMap ，其中包含 uri 映射(如键)和类 Controller (如值)。

通用 Controller :

@RestController
public class GeneralController {

HashMap<String,PersonalizedController> petitions = new HashMap<String,PersonalizedController>();

 @RequestMapping("**")
 public ResponseEntity<Object> index(HttpServletRequest request,HttpServletResponse response,@RequestBody Object body) {

    // Inicialization zone -  this zone don't must exist
        petitions.put("/dir/esta1", new PersonalizedController("esta1"));
        petitions.put("/dir/esta2", new PersonalizedController("esta2"));
    //-------------------------------------------------

    return handlePetition(request,response);
  }

 private ResponseEntity<Object> handlePetition(HttpServletRequest request, HttpServletResponse response) {
    // TODO Auto-generated method stub
    String petition = request.getRequestURI();
    String method = request.getMethod();

    return petitions.get(petition).makePetition(method,new String());
 }
}

Controller 类:

public class PersonalizedController {

private String name;

public PersonalizedController(String name) {
    this.name = name;
}

public ResponseEntity<Object> makePetition(String method,Object body) {
    // TODO Auto-generated method stub
    switch (method) {
    case "GET":
        return doGet(body);
    case "POST":
        return doPost(body);
    case "PUT":
        return doPut(body);
    case "DELETE":
        return doDelete(body);
    default:
        return new ResponseEntity<Object>("",HttpStatus.METHOD_NOT_ALLOWED);
    }
}

public ResponseEntity<Object> doGet(Object body) {
    return new ResponseEntity<Object>("["+name+"] GET",HttpStatus.OK);
}

public ResponseEntity<Object> doPost(Object body) {
    return new ResponseEntity<Object>("["+name+"] POST",HttpStatus.OK);
}

public ResponseEntity<Object> doDelete(Object body) {
    return new ResponseEntity<Object>("["+name+"] DELETE",HttpStatus.OK);
}

public ResponseEntity<Object> doPut(Object body) {
    return new ResponseEntity<Object>("["+name+"] PUT",HttpStatus.OK);
}

}