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我想将我的 NODEMCU wifi 模块连接到实时服务器，然后与其他 API 通信。当我GET使用内容调用简单方法时，plain-text一切正常，调用POSTand时出现问题JSON data。虽然我的服务器 API 似乎在 ARC（Rest API 测试应用程序）上运行良好。

与

  1. 视窗 10
  2. Arduino IDE 1.8.12
  3. Linux Live Server（托管在 BIGROCK 上）
  4. 安全域 (https://)
  5. API目录权限为755

实时服务器

<?php
if (strtoupper($_SERVER['REQUEST_METHOD']) != 'POST') {
throw new Exception('Only POST requests are allowed');
}

$content_type = isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : '';
if (stripos($content_type, 'application/json') === false) {
throw new Exception('Content-Type must be application/json');
}

$body = file_get_contents("php://input");
$object = json_decode($body, true);
if (!is_array($object)) {
throw new Exception('Failed to decode JSON object');
}

print_r($object);
?>

Arduino IDE

#include <ESP8266WiFi.h>

const char* ssid = "**********";
const char* password = "**********";
const char* host = "www.ameyakrishi.com";

void setup()
{

Serial.begin(115200);
delay(2000);
Serial.print("[Connecting to "); Serial.print(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");delay(500);
}
Serial.println("  Connected]");delay(1000);
}


void loop()
{
WiFiClient client;
Serial.print("[Connecting to "); Serial.print(host);delay(500);
if (client.connect(host, 80))
{
Serial.println("  Connected]");delay(1000);

String postData = "{\"key\":\"papa\",\"val\":999}";
client.print(String("POST /automation/app.php") + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Content-Type: application/json \r\n" +
"Content-Length: " + postData.length() + "\r\n" +
"Connection: close\r\n" +
"\r\n"
);

while (client.connected() || client.available())
{
if (client.available())
{
String line = client.readStringUntil('\n');
Serial.println(line);
}
}

client.stop();
Serial.println("\n[Disconnected]");delay(1000);
}
else
{
Serial.println("connection failed!]");delay(1000);
client.stop();
}
delay(30000);

}

串行监视器输出 所有连接都成功，然后500 Internal Server Error以格式打印响应。

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