Question

我正在使用ESPAsyncWebServer库与使用ESP32创建的WiFi AP上的客户端进行交互。我正在尝试部署一个强制验证用户名和密码的门户网站。

    #include <WiFi.h>
    #include <DNSServer.h>
    #include "ESPAsyncWebServer.h"

    DNSServer dnsServer;
    AsyncWebServer server(80);

    class CaptiveRequestHandler : public AsyncWebHandler {
    public:

      bool canHandle(AsyncWebServerRequest *request){
        return true;
      }
      CaptiveRequestHandler() {}
      virtual ~CaptiveRequestHandler() {}
      void handleRequest(AsyncWebServerRequest *request) 
      {
        AsyncResponseStream *response = request->beginResponseStream("text/html");
        if(request->url() == "/newuser")
        {
          int params = request->params();
          for(int i=0;i<params;i++)
          {
            AsyncWebParameter* p = request->getParam(i);
            if(p->isFile())
            {
              Serial.printf("FILE[%s]: %s, size: %u\n", p->name().c_str(), p->value().c_str(), p->size());
            }
            else if(p->isPost())
            {
              Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
            } 
            else 
            {
              Serial.printf("GET[%s]: %s\n", p->name().c_str(), p->value().c_str());
            }
          }

          response->print("<!DOCTYPE html><html><head><title>Captive Portal</title></head><body>");
          response->print("<p>Hello!</p>");
          response->printf("<p>You were trying to reach: http://%s%s</p>", request->host().c_str(), request->url().c_str());
          response->printf("<p>Try opening <a href='http://%s'>this link</a> instead</p>", WiFi.softAPIP().toString().c_str());
          response->print("</body></html>");
        }
        request->send(response);
      }
    };


    void setup(){
      //other setup stuff...
      WiFi.mode(WIFI_AP);
      WiFi.softAP("Project WiFi");
      Serial.begin(115200);
      dnsServer.start(53, "*", WiFi.softAPIP());
      server.addHandler(new CaptiveRequestHandler()).setFilter(ON_AP_FILTER);//only when requested from AP  
      //more handlers...
      server.begin();
    }

    void loop(){
      dnsServer.processNextRequest();
      delay(1000);
    }

问题是由于某种原因，我无法获取POST参数。

我尝试使用POST Man发送POST请求，但是它根本不会在串行监视器中列出参数。它与GET Request一起工作。

ESP32无法在串行监视器中获取POST参数

0 个答案: