Android实时质量检测
传送门:CSDN
使用ping -n -i %f -c %d %s
命令实现网络质量检测,具体参数如下:
-n count 发送 count 指定的 ECHO 数据包数。默认值为 4
-i 生存时间
-c 路由隔离仓标识符
如图ping后返回的最后一行可以看到min/avg/max/stddev,我们主要从avg来判断当前的网络质量
- 通过Ping.startSniffer方法开始调用,urls规则可以看Ping里面的getIp方法,从第7位开始到下一个":"截至,获取具体域名来ping
Ping.startSniffer("https://www.baidu.com:");
- 在startSniffer中需要自己实现回调等方式把PingQuality.getQualityInt(s)获取的网络质量结果抛出
使用ping命令获取返回的string,然后解析后获取到avg来判断网络质量。
private static PingResult pingCmd(String address, int count, int interval) {
String ip = null;
try {
ip = getIp(address);
} catch (UnknownHostException e) {
// Log.e(TAG, "parseResult", e);
}
if (ip == null) {
sleepTime = 2000;
return new PingResult("", address, "", 0);
} else {
sleepTime = 200;
}
String cmd = String.format(Locale.US, "ping -n -i %f -c %d %s", ((double) interval / 1000), count, ip);
Process process = null;
StringBuilder str = new StringBuilder();
BufferedReader reader = null;
BufferedReader errorReader = null;
try {
process = Runtime.getRuntime().exec(cmd);
reader = new BufferedReader(new InputStreamReader(
process.getInputStream()));
String line;
errorReader = new BufferedReader(new InputStreamReader(
process.getErrorStream()));
while ((line = reader.readLine()) != null) {
str.append(line).append("\n");
}
while ((line = errorReader.readLine()) != null) {
str.append(line);
}
} catch (IOException e) {
Log.e(TAG, "pingCmd", e);
} finally {
try {
if (reader != null) {
reader.close();
}
if (errorReader != null) {
errorReader.close();
}
if (process != null) {
process.destroy();
}
} catch (Exception e) {
Log.e(TAG, "pingCmd", e);
}
}
return new PingResult(str.toString(), address, ip, interval);
}
public static class PingResult {
public final String result;
public final String ip;
public final String address;
public final int interval;
private static final String LAST_LINE_PREFIX = "rtt min/avg/max/mdev = ";
private static final String PACKET_WORDS = " packets transmitted";
private static final String RECEIVED_WORDS = " received";
private static final String LOSS_WORDS = "% packet loss";
public int sent;
public int packetLoss = -1;
public int dropped;
public float max;
public float min;
public float avg;
public float stddev;
public int count;
public int avgNumber;
public int lostNumber;
PingResult(String result, String address, String ip, int interval) {
this.result = result;
this.ip = ip;
this.interval = interval;
this.address = address;
parseResult();
}
static String trimNoneDigital(String s) {
if (s == null || s.length() == 0) {
return "";
}
char[] v = s.toCharArray();
char[] v2 = new char[v.length];
int j = 0;
for (char aV : v) {
if ((aV >= '0' && aV <= '9') || aV == '.') {
v2[j++] = aV;
}
}
return new String(v2, 0, j);
}
private void parseRttLine(String s) {
String s2 = s.substring(LAST_LINE_PREFIX.length(), s.length() - 3);
String[] l = s2.split("/");
if (l.length != 4) {
return;
}
min = Float.parseFloat(trimNoneDigital(l[0]));
avg = Float.parseFloat(trimNoneDigital(l[1]));
max = Float.parseFloat(trimNoneDigital(l[2]));
stddev = Float.parseFloat(trimNoneDigital(l[3]));
}
private void parsePacketLine(String s) {
String[] l = s.split(",");
if (l.length != 4) {
return;
}
if (l[0].length() > PACKET_WORDS.length()) {
String s2 = l[0].substring(0, l[0].length() - PACKET_WORDS.length());
count = Integer.parseInt(s2);
}
if (l[1].length() > RECEIVED_WORDS.length()) {
String s3 = l[1].substring(0, l[1].length() - RECEIVED_WORDS.length());
sent = Integer.parseInt(s3.trim());
}
if (l[2].length() > LOSS_WORDS.length()) {
String s4 = l[2].substring(0, l[2].length() - LOSS_WORDS.length());
packetLoss = Integer.parseInt(s4.trim());
}
dropped = count - sent;
}
private void parseResult() {
String[] rs = result.split("\n");
try {
for (String s : rs) {
if (s.contains(PACKET_WORDS)) {
parsePacketLine(s);
} else if (s.contains(LAST_LINE_PREFIX)) {
parseRttLine(s);
}
}
} catch (Exception e) {
Log.e(TAG, "parseResult", e);
}
}
@Override
public String toString() {
if (avg == 1) {
avgNumber = 0;
} else if (avg > 1 && avg <= 15) {
avgNumber = 1;
} else if (avg > 15 && avg <= 55) {
avgNumber = 2;
} else if (avg > 55 && avg <= 140) {
avgNumber = 3;
} else if (avg > 140 && avg <= 420) {
avgNumber = 4;
} else if (avg > 420) {
avgNumber = 5;
} else {
avgNumber = 6;
}
if (packetLoss == 0) {
lostNumber = 0;
} else if (packetLoss > 0 && packetLoss <= 2) {
lostNumber = 1;
} else if (packetLoss > 2 && packetLoss <= 5) {
lostNumber = 2;
} else if (packetLoss > 5 && packetLoss <= 8) {
lostNumber = 3;
} else if (packetLoss > 8 && packetLoss <= 13) {
lostNumber = 4;
} else if (packetLoss > 13) {
lostNumber = 5;
} else {
lostNumber = 6;
}
Log.e("ping", "avg: " + avg + " packetLoss: " + packetLoss);
if (lostNumber > avgNumber) {
return PingQuality.getDescription(lostNumber);
} else {
return PingQuality.getDescription(avgNumber);
}
// return "Result{" +
// "result='" + result + '\'' +
// ", ip='" + ip + '\'' +
// ", interval=" + interval +
// ", lastLinePrefix='" + LAST_LINE_PREFIX + '\'' +
// ", packetWords='" + PACKET_WORDS + '\'' +
// ", receivedWords='" + RECEIVED_WORDS + '\'' +
// ", sent=" + sent +
// ", dropped=" + dropped +
// ", max=" + max +
// ", min=" + min +
// ", avg=" + avg +
// ", stddev=" + stddev +
// ", count=" + count +
// ", packetLoss=" + packetLoss +
// '}';
}
}