FTP
模拟 331 Username OK, Need Password 响应
User name okay, need password. The server recognized the username and is waiting for the corresponding password to complete authentication.
查看完整参考 →1 HTTP 响应
HTTP/1.1 331 Username OK, Need Password Content-Type: application/json Date: Tue, 25 Feb 2026 12:00:00 GMT
2 使用 curl 测试
curl -i https://httpbin.org/status/331
3 在您的框架中返回 331 Username OK, Need Password
django
from django.http import HttpResponse
def my_view(request):
return HttpResponse(status=331) # Username OK, Need Password
flask
from flask import Flask
app = Flask(__name__)
@app.route("/endpoint")
def my_endpoint():
return "", 331 # Username OK, Need Password
fastapi
from fastapi import FastAPI
from fastapi.responses import Response
app = FastAPI()
@app.get("/endpoint")
def my_endpoint():
return Response(status_code=331) # Username OK, Need Password
express.js
// Express.js
app.get('/endpoint', (req, res) => {
res.sendStatus(331); // Username OK, Need Password
});
spring boot
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
@RestController
public class MyController {
@GetMapping("/endpoint")
public ResponseEntity<Void> myEndpoint() {
return ResponseEntity
.status(331) // Username OK, Need Password
.build();
}
}
go net/http
package main
import "net/http"
func myHandler(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(331) // Username OK, Need Password
}
ruby on rails
class MyController < ApplicationController
def my_action
head :username_ok,_need_password
end
end
asp.net core
// ASP.NET Core Minimal API
app.MapGet("/endpoint", () =>
Results.StatusCode(331) // Username OK, Need Password
);