【已解决】Failed to connect to 172.16.0.26 port 8787: Address already in use

云端更新于2022-07-21

新整个webman，放到Linux上，写个简单的方法：

public function index(Request $request)
{
    return response('hello webman');
}

windows本地，写个for循环：

for ($i = 0; $i < 10000; $i++) {
    echo '循环：' . $i . '=>' . request_get($url) . PHP_EOL;
}

request_get方法：

function request_get(string $url, int $timeout = 10)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

    $rs = curl_exec($ch);
    if (curl_errno($ch)) {
        $err_msg = curl_error($ch);
        curl_close($ch);
        return json_encode(['code' => 50, 'msg' => $err_msg]);
    } else {
        curl_close($ch);
        return $rs;
    }
}

结果后期提示：

Failed to connect to 172.16.0.26 port 8787: Address already in use

1个回答

xiuwang 2022-07-21

curl是短连接，每次请求会占用本地一个端口，请求完毕后这个端口不会立刻释放。本地端口有限，当本地端口被快速用完就会报这个 Address already in use 错误了。
curl用长连接，也就是不主动curl_close，这样就不会不断的消耗本地端口，应该就不会报错了，request_get改成

function request_get(string $url, int $timeout = 10)
{
    static $ch;
    $ch = $ch ?: curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);

    $rs = curl_exec($ch);
    if (curl_errno($ch)) {
        $err_msg = curl_error($ch);
        //curl_close($ch);
        return json_encode(['code' => 50, 'msg' => $err_msg]);
    } else {
        //curl_close($ch);
        return $rs;
    }
}