我正在尝试捕获HTTP请求并使用C将其存储在数组中。我怎么可能这样做？
我得到的请求是以下形式：
POST /box/update HTTP/1.1
Accept : application/json
Content-Type : application/x-www-form-urlencoded
host:121.158.41.104:1338
content-length : 83
Connection : close
serial=1234&pin=1234&poweState=true&startState=true&temperature=11&macAdress=113
到目前为止，我已尝试过代码：
/*
WiFi Web Server
A simple web server that shows the value of the analog input pins.
using a WiFi shield.
This example is written for a network using WPA encryption. For
WEP or WPA, change the Wifi.begin() call accordingly.
Circuit:
* WiFi shield attached
* Analog inputs attached to pins A0 through A5 (optional)
created 13 July 2010
by dlf (Metodo2 srl)
modified 31 May 2012
by Tom Igoe
*/
#include <SPI.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
// your network name also called SSID
char ssid[] = "MySSID";
// your network password
char password[] = "MyPassword";
// your network key Index number (needed only for WEP)
int keyIndex = 0;
WiFiServer server(Mport);
int array_number = 3;
void setup() {
Serial.begin(115200); // initialize serial communication
pinMode(RED_LED, OUTPUT); // set the LED pin mode
// attempt to connect to Wifi network:
Serial.print("Attempting to connect to Network named: ");
// print the network name (SSID);
Serial.println(ssid);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
WiFi.begin(ssid, password);
while ( WiFi.status() != WL_CONNECTED) {
// print dots while we wait to connect
Serial.print(".");
delay(300);
}
Serial.println("\nYou're connected to the network");
Serial.println("Waiting for an ip address");
while (WiFi.localIP() == INADDR_NONE) {
// print dots while we wait for an ip addresss
Serial.print(".");
delay(300);
}
// you're connected now, so print out the status
printWifiStatus();
Serial.println("Starting webserver on port 80");
server.begin(); // start the web server on port 80
Serial.println("Webserver started!");
}
void loop() {
// listen for incoming clients
WiFiClient client = server.available();
String buffer = "";
String post_str1 = "";
/*
int temperatures;
String macAddresses;
*/
String status_message;
int status_code;
boolean powerStates[3]= {true,true,true};
boolean startStates[3]= {true,true,true};
//int temperatures[3]={11,22,33};
char * macAddresses[3] = {"155","156","157"};
char * temperatures[3] = {"11","22","33"};
// powerStates[3]
//startStates[3]
/*
temperatures = 11;
macAddresses = "155";
*/
status_code = 1;
status_message = "success";
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
int check = 0;
while (client.connected()) {
if (client.available()) {
char c = client.read();
buffer +=c;
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
//if(c == '\n' && currentLineIsBlank){
if(buffer.indexOf("true")>=0||buffer.indexOf("false")>=0){
// you're starting a new line
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: application/json");
client.println();
client.print("{\"serial\":\"");
client.print("1234");
client.print("\",\"pin\":\"");
client.print("1234");
client.print("\",\"powerStates\":");
client.print("[1,1,1]");
client.print(",\"startStates\":");
client.print("[1,1,1]");
client.print(",\"temperatures\":");
client.print("[11,22,33]");
client.print(",\"macAddresses\":");
client.print("[\"125\",\"136\",\"137\"]");
/*
client.print("\",\"powerStates\":");
client.print("[\"true\",\"true\",\"true\"]");
client.print(",\"startStates\":");
client.print("[\"false\",\"false\",\"false\"]");
client.print(",\"temperatures\":");
client.print("[\"11\",\"22\",\"33\"]");
client.print(",\"macAddresses\":");
client.print("[\"155\",\"156\",\"157\"]");
*/
client.print(",\"status_code\":");
client.print(status_code);
client.print(",\"status_message\":\"");
client.print(status_message);
client.print("\"}");
Serial.print("\n\r");
Serial.print("{\"serial\":\"");
Serial.print("1234");
Serial.print("\",\"pin\":\"");
Serial.print("1234");
Serial.print("\",\"powerStates\":");
Serial.print("[\"true\",\"true\",\"true\"]");
Serial.print(",\"startStates\":");
Serial.print("[\"true\",\"true\",\"true\"]");
Serial.print(",\"temperatures\":");
Serial.print("[\"11\",\"22\",\"33\"]");
Serial.print(",\"macAddresses\":");
Serial.print("[\"155\",\"156\",\"157\"]");
Serial.print(",\"status_code\":");
Serial.print(status_code);
Serial.print(",\"status_message\":\"");
Serial.print(status_message);
Serial.print("\"}");
Serial.print("\n\r");
buffer="";
check==0;
break;
}
if(c == '\n'){
currentLineIsBlank=true;
}
else if (c !='\r'){
currentLineIsBlank=false;
}
}// carrage
}//client avable
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disonnected");
}//if client
}//while
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("Network Name: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
我的程序需要存储每个变量和值以供进一步使用。我已经能够在我的控制台上读取此请求和输出，但更进一步，我被卡住了。
答案 0 :(得分：1)
我不知道你尝试了什么，因为我正在使用Stack Overflow for Android（buggy）而且我看不到你的整个代码缓冲区
请在下次代码中具体说明
如果你想存储缓冲区，你会得到一个数组（请求）
我能想到的最好方法是使用2D指针进行动态内存分配。
您可以从该代码开始
#include <stdio.h>
#include <stdlib.h>
#define MAX_BUF 1024
char* arrOfBuffers[1000]; // stored requests
int requests = 0; // number of http requests stored
const char* getHttp(const char* URL)
{
char* buf;
// Some http GET functions
// send(socket, "GET / HTTP/1.0", ...);
// ...
// memset(buf 0, MAX_BUF)
// ...
// recv(socket, buf, sizeof(buf), ...);
// ...
// Save it
buf = "some buffer"; // example
arrOfBuffers[requests] = buf;
puts(arrOfBuffers[requests]);
++requests;
return buf;
}
int main ()
{
for(int i = 0; i <= 1000; ++i) // 1000 requests
{
char* request = (char*)calloc(1, 80);
sprintf(request, "http://www.stackoverflow.com/users/%d/", i);
getHttp(request);
}
return 0;
}
我真的想要为我的代码制作一个真实的实例，但我现在不能使用套接字库因为我是PC afk。