如何使用socket编程测量Android的数据包丢失？ [英] How to measure Packet loss in Android using socket programming?
本文介绍了如何使用socket编程测量Android的数据包丢失？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在开发的Android应用程序，我需要从服务器通信，而我做了套接字编程的帮助，现在我需要找到丢包率在我的连接，因此没有任何 API 或任何方式找到socket编程数据包丢失。
我附上从哪里接到来自服务器的消息客户端我的code片段。
{尝试
插座=新的Socket（dstAddress，dstPort）;
DataOutputStream类=新DataOutputStream类（
socket.getOutputStream（））;
DataInputStream以=新DataInputStream所（socket.getInputStream（））;
dataOutputStream.writeUTF（名）;
dataOutputStream.flush（）; 字符串myArray的=;
INT I = 0;
而（！goOut）{
标志= 0;
如果（dataInputStream.available（）大于0）{
MSGLOG + = dataInputStream.readUTF（）;
标志= 1;
MainActivity.this.runOnUiThread（新的Runnable（）{ @覆盖
公共无效的run（）{
chatMsg.setText（MSGLOG）;
}
}）; Log.d（DERE，MSGLOG）; myArray的= MSGLOG +;
Log.v（有，myArray的）;
}
//Log.v(\"ARE，myArray的[0]）;
如果（标志== 1）
收到（myarray的）; 如果（！msgToSend.equals（））{
dataOutputStream.writeUTF（msgToSend）;
dataOutputStream.flush（）;
msgToSend =;
}
}
//Looper.loop（）; }赶上（UnknownHostException异常五）{
e.printStackTrace（）;
最后弦乐为EString = e.toString（）;
MainActivity.this.runOnUiThread（新的Runnable（）{ @覆盖
公共无效的run（）{
Toast.makeText（MainActivity.this，为EString，Toast.LENGTH_LONG）.show（）;
} }）;
解决方案
检查低于code。
公共无效平（）
{
字符串结果= NULL;
INT pingCount = 5;
的String [] = rttPacket新的String [3];
的String [] =丢包新的String [1];
尝试{
// URL =192.168.4.31;
字符串pingCmd =平-c+ pingCount ++ URL; // URL; //
串pingResult =;
运行R =调用Runtime.getRuntime（）;
进程p = r.exec（pingCmd）;
在的BufferedReader =新的BufferedReader（新的InputStreamReader（
p.getInputStream（）））;
串inputLine;
而（（inputLine = in.readLine（））！= NULL）{
pingResult + = inputLine;
}
附寄（）;
ProcessSyncResponse（pingResult，URL）;
}
}公共字符串ProcessSyncResponse（字符串pingResult，字符串URL）{
字符串pingdataResult = NULL;
尝试{
INT索引2 = pingResult.indexOf（％丢包）;
INT索引1 = pingResult.indexOf（RTT最小/平均/最大/ MDEV =）;
如果（索引1大于0）{
字符串parsedTime =（pingResult.substring（索引1 + 23））;
rttPacket = parsedTime.split（/）;
}其他{
rttPacket [0] =0;
rttPacket [1] =0;
rttPacket [2] =0;
}
如果（索引2大于0）{
串parsedPacket =;
INT finalIndex =索引2 + -3;
字符串parsedintitalIndex = pingResult.substring（finalIndex，
索引2）;
parsedintitalIndex = parsedintitalIndex.replaceAll（
（，）|（,,）|（），）; parsedPacket + = parsedintitalIndex;
parsedPacket + =（pingResult.substring（索引2））;
丢包= parsedPacket.split（％）; }其他{
丢包[0] =0;
}
}赶上（例外五）{
e.printStackTrace（）;
}
}
log.v（TAG，丢包％+丢包[0]）;
log.v（TAG，丢包AVG+ rttPacket [0]）;
log.v（TAG，丢包最小+ rttPacket [1]）;
log.v（TAG，丢包最大+ rttPacket [2]）;
很高兴，如果它为你工作。
I am developing an application for android where i need to communicate from server and i did that with the help of socket programming, now i need to find Packet Loss in my connection, so is there any API or any way to find Packet Loss in socket programming.
I am attaching my code snippet where client received message from server.
try {
socket = new Socket(dstAddress, dstPort);
dataOutputStream = new DataOutputStream(
socket.getOutputStream());
dataInputStream = new DataInputStream(socket.getInputStream());
dataOutputStream.writeUTF(name);
dataOutputStream.flush();
String myArray = "";
int i=0;
while (!goOut) {
flag=0;
if (dataInputStream.available() > 0) {
msgLog += dataInputStream.readUTF();
flag=1;
MainActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
chatMsg.setText(msgLog);
}
});
Log.d("DERE", msgLog);
myArray=msgLog+"";
Log.v("ARE", myArray);
}
//Log.v("ARE", myArray[0]);
if(flag==1)
received(myArray);
if(!msgToSend.equals("")){
dataOutputStream.writeUTF(msgToSend);
dataOutputStream.flush();
msgToSend = "";
}
}
//Looper.loop();
} catch (UnknownHostException e) {
e.printStackTrace();
final String eString = e.toString();
MainActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, eString, Toast.LENGTH_LONG).show();
}
});
解决方案
Check below code.
public void ping()
{
String result = null;
int pingCount=5;
String[] rttPacket = new String[3];
String[] packetLoss= new String[1];
try {
// url = "192.168.4.31";
String pingCmd = "ping -c " + pingCount + " " + url;// url;//
String pingResult = "";
Runtime r = Runtime.getRuntime();
Process p = r.exec(pingCmd);
BufferedReader in = new BufferedReader(new InputStreamReader(
p.getInputStream()));
String inputLine;
while ((inputLine = in.readLine()) != null) {
pingResult += inputLine;
}
in.close();
ProcessSyncResponse(pingResult, url);
}
} public String ProcessSyncResponse(String pingResult, String url) {
String pingdataResult = null;
try {
int index2 = pingResult.indexOf("% packet loss");
int index1 = pingResult.indexOf("rtt min/avg/max/mdev =");
if (index1 > 0) {
String parsedTime = (pingResult.substring(index1 + 23));
rttPacket = parsedTime.split("/");
} else {
rttPacket[0] = "0";
rttPacket[1] = "0";
rttPacket[2] = "0";
}
if (index2 > 0) {
String parsedPacket = "";
int finalIndex = index2 + -3;
String parsedintitalIndex = pingResult.substring(finalIndex,
index2);
parsedintitalIndex = parsedintitalIndex.replaceAll(
"(,)|(,,)|( )", "");
parsedPacket += parsedintitalIndex;
parsedPacket += (pingResult.substring(index2));
packetLoss = parsedPacket.split("%");
} else {
packetLoss[0] = "0";
}
} catch (Exception e) {
e.printStackTrace();
}
}
log.v(TAG," Packet Loss in %" +packetLoss[0]]);
log.v(TAG," Packet Loss AVG" +rttPacket[0]]);
log.v(TAG," Packet Loss Min" +rttPacket[1]]);
log.v(TAG," Packet Loss Max" +rttPacket[2]]);
Glad if it worked for you.
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