为什么我无法连接到网址？

Question

String log_url = "http://192.168.1.11/Rep/logini.php";

URL url = new URL(log_url);

HttpURLConnection connection =(HttpURLConnection)url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
connection.setDoInput(true);
connection.connect();
OutputStream outputStream = connection.getOutputStream();
BufferedWriter bufferedWriter = new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8"));
String post_data = URLEncoder.encode("name", "UTF-8") + "=" + URLEncoder.encode(nam, "UTF-8") + "&" + 
    URLEncoder.encode("username", "UTF-8") + "=" + URLEncoder.encode(loc, "UTF-8");
bufferedWriter.write(post_data);
bufferedWriter.flush();
bufferedWriter.close();
outputStream.close();
connection.disconnect();

执行此代码时，我无法连接到此行中的url.Disconnecting OutputStream outputStream = connection.getOutputStream();。

控制台中的消息如下：

handlePacket：cmd=0x1，cmdSet=0xC7，len=0x14，id=0x400024DF， 标志=0x0，dataLen=0x9 01-27 16:59:55.848 12282-12289/com.example.focture.medicalrep D/jdwp：sendBufferedRequest : len=0x34

Answer 1

看起来您正在尝试连接到您自己...

如果这是你的 ip 192.168.1.11 那么使用 localhost 代替

String log_url = "http://localhost/Rep/logini.php"; 

Answer 2

检查一下

String post_data = URLEncoder.encode("name", "UTF-8") + "=" + URLEncoder.encode(nam, "UTF-8") + "&" + 
    URLEncoder.encode("username", "UTF-8") + "=" + URLEncoder.encode(loc, "UTF-8");
    URL obj = new URL("http://192.168.1.11/Rep/logini.php");
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();
    con.setRequestMethod("POST");
    con.setDoOutput(true);
    OutputStream os = con.getOutputStream();
    os.write(post_data.getBytes());
    os.flush();
    os.close();
    int responseCode = con.getResponseCode();
    System.out.println("POST Response Code :: " + responseCode);

    if (responseCode == HttpURLConnection.HTTP_OK) { //success
        BufferedReader in = new BufferedReader(new InputStreamReader(
                con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        // print result
        System.out.println(response.toString());
    } else {
        System.out.println("POST request not worked");
    }