android 使用Ntrip协议，socket连接获取接入点，登录模式

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前段时间出差去解决一个问题，就是获取接入点，还有登录模式。手机网络差分设置的问题，在这过程是使用Ntrip协议的。这个有点坑的地方，是在于服务器那边是不是按照协议来标准处理这些验证数据。首先是一个socket连接，socket连接上了发送协议。这个协议就是Ntrip来做的。
Ntrip协议的下载地址：点击

1、使用背景

2、代码socket连接

package com.aualarm.util;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;

import android.os.Handler;
import android.os.Message;
import android.util.Log;

public class ClientInfoThread extends Thread{
	
	Socket socket = null;
	Handler handler;
	String host = "10.10.100.254";  // 默认：tcp server    端口 20108
	int port = 8899;                //默认端口888	
	boolean need_send_cmd = false;
	
	DataInputStream dis = null;
	DataOutputStream dos = null;
	
	public ClientInfoThread(Handler handler) {				
		this.handler = handler;				
	}
	
	public void set_host_port(String host,int port) {
		this.host = host;
		this.port = port;
	}
	
	public void run() {
		try {		  
		  byte readBuffer[] = new byte[64];		  
		  
  	      try {
		    //socket = new Socket(host,port);
  	    	socket = new Socket();
  	    	
  	    	SocketAddress socketAddress = new InetSocketAddress(host,port);
  	    	socket.connect(socketAddress,2000);
  	    	
		    socket.setSoTimeout(2000);
		    socket.setTcpNoDelay(true);		    
		  
		    dis = new DataInputStream(new BufferedInputStream(socket.getInputStream()));
		    dos = new DataOutputStream(new BufferedOutputStream(socket.getOutputStream()));
		    
		    PublicInfo.connected_server = true;
		    Message msg = new Message();
			msg.what = 0x1236;
			msg.obj = readBuffer;			
			handler.sendMessage(msg);
		    
		    while (!Thread.interrupted()) {		      
		      if (PublicInfo.need_send_cmd) {
		    	  PublicInfo.need_send_cmd = false;
		    	  Log.i("Show", PublicInfo.buf.toString());
		    	  dos.write(PublicInfo.buf, 0, PublicInfo.buf_length);
			      dos.flush();
		      }
		      int count = 0;
			  try {
					count = dis.read(readBuffer);
			   } catch (IOException e) {
					continue;
			   }
			   if (count < 1)
					continue;
			    String line = null;
			    line = new String(readBuffer, 0, count);
				Message msg2 = new Message();
				msg2.what = 0x1234;
				msg2.obj = line;	
				msg2.arg1 = count;
				handler.sendMessage(msg2);
		    }
		    
		    
		    }finally {
		      if (dos != null)	  
			    dos.close();
			  if (dis != null)
			    dis.close();
			  if (socket != null)
			    socket.close();
			  PublicInfo.info_thread_exit = true;
			  PublicInfo.connected_server = false;
		    }					  		 			  		  
		} catch (Exception e) {
			e.printStackTrace();
			
			Message msg = new Message();
			msg.what = 0x1235;
			msg.obj = e.getMessage();
			handler.sendMessage(msg);
		}
	}

}

public class PublicInfo {
	public static byte buf[] = null;
	public static int buf_length;
	public static boolean need_send_cmd;
	public static boolean recv_thread_exit;
	public static boolean info_thread_exit;
	public static boolean connected_server;
}

这个是socket连接启动的，一般都要开一个线程来连接的。

if (PublicInfo.connected_server) { // 已经连接服务器的，需要断开后重新连接  
    disconnect_server();  
}  
PublicInfo.connected_server = false;  
client_info_thread = new ClientInfoThread(netMessageHandle);  
client_info_thread.set_host_port("10.10.100.254",  
        SharePreferenceUtil.DEVICE_PORT);  
client_info_thread.start();

线程接收到数据，在界面上处理的消息机制。

// 消息 handler 对象  
Handler netMessageHandle = new Handler() {  
    public void handleMessage(Message msg) {  
        // 如果消息是 0x1234,则是从 线程中 传输过来的数据  
        if (msg.what == 0x1234) {  
            show_result(msg.obj.toString(), msg.arg1); // 将 缓冲区的数据显示到 UI  
        }  
        // 如果消息是 0x1234,则是从 线程中 传输过来的数据  
        if (msg.what == 0x1235) {  
            Toast.makeText(getApplicationContext(),  
                    getString(R.string.MainNetClose) + msg.obj,  
                    Toast.LENGTH_LONG).show();  
        }  
        if (msg.what == 0x1236) {  
      
        }  
    }  
  
          
};

3、Ntrip协议

a、连接成功后的，获取接入点协议

GET /HTTP/1.1  
User-Agent: NTRIP NETSET_DEBUG  
Accept: */*  
Connection: close  
Authorization: Basic MDE5MzowNzEw  

String strResult[] = strDataString.split("STR;");  
for (int i = 1; i < strResult.length; i++) {  
    StreamDetails temDetails = new StreamDetails();  
  
    // 第二次按";"标志，截取字符串  
    String strFinallResult[] = strResult[i].split(";");  
    temDetails.strMountpoint = strFinallResult[0];  
    add(temDetails);  
}

b、登录模式

GET /RTCM31 HTTP/1.1  
User-Agent: NTRIP 54168078020418  
Accept: */*  
Connection: close  
Authorization: Basic dGVzdDoyOTc4MzE=

//用户密码转化为Base64编码          
String userPassword = "test" + ":" + "297831";  
String base64UserPassword = "";  
try {  
    base64UserPassword = URLDecoder.decode(Base64.encodeToString(userPassword.getBytes(), Base64.NO_WRAP), "UTF-8");  
} catch (UnsupportedEncodingException e) {  
    // TODO Auto-generated catch block  
    e.printStackTrace();  
}  

android 使用Ntrip协议，socket连接获取接入点，登录模式

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原文地址：http://blog.csdn.net/qq_16064871/article/details/52254991