我正在尝试通过 Java 中的 telnet 发送 HTML POST 请求，我有一些必须发送的 XML 内容。但是当我尝试在 java 中实现时，我收到“连接重置”错误。但是当我通过 putty(unix) 执行此操作时，我得到了正确的响应 xml。
我使用的 Java 程序：（导致连接重置错误）
public class Telnet {public static void main(String[] args) throws Exception {
Socket socket = new Socket("hostname", 10020);
String xmled = "<?xml version=1.0?><methodCall><methodName>GetVoucherDetails</methodName><params><param><value><struct><member><name>serialNumber</name><value><string>1038291567</string></value></member><member><name>networkOperatorId</name><value><string>vno2</string></value></member></struct></value></param></params></methodCall>";
System.out.println("Params: " + xmled);
try {
Writer out = new OutputStreamWriter(socket.getOutputStream(), "UTF-8");
out.write("POST /someContext HTTP/1.1\r\n");
out.write("Accept: text/xml\r\n");
out.write("Connection: close\r\n");
out.write("Content-Length: 489\r\n");
out.write("Content-Type: text/xml\r\n");
out.write("Host: ws2258:10010\r\n");
out.write("User-Agent: ADM/2.4/6.2\r\n");
out.write("Authorization: Basic cHBtc3VzZXI6dnNfJF9wcG11NWVy\r\n");
out.write(xmled);
out.write("\r\n");
out.flush();
InputStream inputstream = socket.getInputStream();
InputStreamReader inputstreamreader = new InputStreamReader(inputstream);
BufferedReader bufferedreader = new BufferedReader(inputstreamreader);
String string = null;
string = bufferedreader.readLine();
System.out.println(string);
while ((string = bufferedreader.readLine()) != null) {
System.out.println("Received " + string);
}
} catch(Exception e) {
e.printStackTrace();
} finally {
socket.close();
}
}
}
请给我一些建议，我是套接字编程的新手。