Question

以下是我尝试通过红色氧气服务器发送短信的代码

以下是我正在执行的代码 final String requestURL =“http://www.redoxygen.net/sms.dll?Action=SendSMS”;

    final StringBuilder stringBuilder = new StringBuilder();
    try {
        stringBuilder.append("AccountId=").append(URLEncoder.encode("****", "UTF-8"))
                .append("&Email=").append(URLEncoder.encode("*******", "UTF-8"))
                .append("&Password=").append(URLEncoder.encode("******", "UTF-8"))
                .append("&Recipient=").append(URLEncoder.encode("******", "UTF-8"))
                .append("&Message=").append(URLEncoder.encode("hello", "UTF-8"));
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }

    final URL address;
    try {
        address = new URL(requestURL);
    } catch (MalformedURLException e) {
        throw new RuntimeException(e);
    }

    final HttpURLConnection connection;
    try {
        connection = (HttpURLConnection) address.openConnection();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    try {
        connection.setRequestMethod("POST");
    } catch (ProtocolException e) {
        throw new RuntimeException(e);
    }
    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setConnectTimeout(100000000);

    DataOutputStream output = null;
    try {
        output = new DataOutputStream(connection.getOutputStream());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    try {
        output.writeBytes(stringBuilder.toString());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

执行时我得到以下异常：

java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:525)
at sun.net.NetworkClient.doConnect(NetworkClient.java:158)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.http.HttpClient.New(HttpClient.java:323)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:860)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:801)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:726)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:904)
at com.nextenders.server.LoginServlet.SendSMS(LoginServlet.java:143)

我尝试增加连接timeout并关闭防火墙等等但没有运气。任何人都可以帮我跟踪问题？

这是我正在遵循的教程： http://www.redoxygen.com/developers/java/

我的代码中的“ * ”是网关的凭据。

Answer 1

以下代码在我与其他网站进行测试后运行正常（因为我没有访问您的消息传递API）：

    final String requestURL = "http://www.redoxygen.net/sms.dll?Action=SendSMS";
    final StringBuilder stringBuilder = new StringBuilder();
    try {
        stringBuilder.append("AccountId=").append(URLEncoder.encode("****", "UTF-8"))
                .append("&Email=").append(URLEncoder.encode("*******", "UTF-8"))
                .append("&Password=").append(URLEncoder.encode("******", "UTF-8"))
                .append("&Recipient=").append(URLEncoder.encode("******", "UTF-8"))
                .append("&Message=").append(URLEncoder.encode("hello", "UTF-8"));
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException(e);
    }

    final URL address;
    try {
        address = new URL(requestURL);
    } catch (MalformedURLException e) {
        throw new RuntimeException(e);
    }

    final HttpURLConnection connection;
    try {
        connection = (HttpURLConnection) address.openConnection();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    try {
        connection.setRequestMethod("POST");
    } catch (ProtocolException e) {
        throw new RuntimeException(e);
    }
    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setConnectTimeout(100000000);

    try {
        connection.connect();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    final DataOutputStream output;
    try {
        output = new DataOutputStream(connection.getOutputStream());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    try {
        output.writeUTF(stringBuilder.toString());
    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    final InputStream inputStream;
    try {
        inputStream = connection.getInputStream();
    } catch (IOException e) {
        final char[] buffer = new char[0x10000];
        final StringBuilder stackBuilder = new StringBuilder();
        final Reader in;
        try {
            in = new InputStreamReader(connection.getErrorStream(), "UTF-8");
        } catch (UnsupportedEncodingException ex) {
            throw new RuntimeException(ex);
        }
        try {
            int read;
            do {
                read = in.read(buffer, 0, buffer.length);
                if (read > 0) {
                    stackBuilder.append(buffer, 0, read);
                }
            } while (read >= 0);
            System.out.println("Error response code from server. Error was:");
            System.out.println(stackBuilder.toString());
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        } finally {
            try {
                in.close();
            } catch (IOException ex) {
                throw new RuntimeException(ex);
            }
        }
        throw new RuntimeException(e);
    }

    final char[] buffer = new char[0x10000];
    final StringBuilder stackBuilder = new StringBuilder();
    final Reader in;
    try {
        in = new InputStreamReader(inputStream, "UTF-8");
    } catch (UnsupportedEncodingException ex) {
        throw new RuntimeException(ex);
    }
    try {
        int read;
        do {
            read = in.read(buffer, 0, buffer.length);
            if (read > 0) {
                stackBuilder.append(buffer, 0, read);
            }
        } while (read >= 0);
        System.out.println(stackBuilder.toString());
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    } finally {
        try {
            in.close();
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        }
    }

它将toString各种流，并在流未连接时进行错误处理最重要的更改是使用DataOutputStream.writeUTF方法而不仅仅使用write方法 - 这将确保正确编码POST数据。我不认为这是你的问题，问题出在connect上您使用的示例代码似乎没有意识到Java命名约定或最佳实践，我已经大大整理了它可以将流读取器拉出并分成单独的方法以避免重复我建议把它指向另一个网站（我用过我的作品）并看看你是否得到输出。

Answer 2

这是一个网络拓扑问题。您无法从您所在的位置连接到该网站。一些干预防火墙，可能是你自己的，正在阻止它。和你的netadmin交谈。

Java Socket连接超时错误联系SMS网关时出现错误

2 个答案: