HTTP
模拟 501 Not Implemented 响应
The server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
查看完整参考 →1 HTTP 响应
HTTP/1.1 501 Not Implemented
Content-Type: application/json
Date: Tue, 25 Feb 2026 12:00:00 GMT
Content-Length: 55
{
"error": "server_error",
"message": "Not Implemented"
}
2 使用 curl 测试
curl -i https://httpbin.org/status/501
3 在您的框架中返回 501 Not Implemented
django
from django.http import JsonResponse
def my_view(request):
return JsonResponse(
{"error": "server_error", "message": "Not Implemented"},
status=501,
)
flask
from flask import Flask, jsonify
app = Flask(__name__)
@app.route("/endpoint")
def my_endpoint():
return jsonify({"error": "server_error", "message": "Not Implemented"}), 501
fastapi
from fastapi import FastAPI
from fastapi.responses import JSONResponse
app = FastAPI()
@app.get("/endpoint")
def my_endpoint():
return JSONResponse(
content={"error": "server_error", "message": "Not Implemented"},
status_code=501,
)
express.js
// Express.js
app.get('/endpoint', (req, res) => {
res.status(501).json({"error": "server_error", "message": "Not Implemented"});
});
spring boot
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.util.Map;
@RestController
public class MyController {
@GetMapping("/endpoint")
public ResponseEntity<Map<String, Object>> myEndpoint() {
return ResponseEntity
.status(501)
.body(Map.of("error", "not_implemented",
"message", "Not Implemented"));
}
}
go net/http
package main
import (
"encoding/json"
"net/http"
)
func myHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(501)
json.NewEncoder(w).Encode(map[string]string{
"error": "not_implemented",
"message": "Not Implemented",
})
}
ruby on rails
class MyController < ApplicationController
def my_action
render json: {"error": "server_error", "message": "Not Implemented"},
status: :not_implemented
end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
Results.Json(
new { error = "not_implemented", message = "Not Implemented" },
statusCode: 501
)
);