写一段java代码,在windows和linux下检测本系统的的网络流量使用占比,不使用android包,并输出百分比
时间: 2024-02-27 19:56:47 浏览: 27
以下是一个基于Java的网络流量使用占比检测程序,可以在Windows和Linux系统下运行。请注意,此程序需要在管理员权限下运行以获取准确的流量数据。
```java
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class NetworkTrafficMonitor {
public static void main(String[] args) {
String os = System.getProperty("os.name").toLowerCase();
String command = "";
if (os.contains("win")) {
command = "netstat -e";
} else if (os.contains("nix") || os.contains("nux") || os.contains("aix")) {
command = "cat /proc/net/dev";
} else {
System.out.println("Unsupported OS!");
return;
}
try {
Process process = Runtime.getRuntime().exec(command);
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
long bytesReceived = 0;
long bytesSent = 0;
long totalBytes = 0;
Pattern pattern = Pattern.compile("\\s*(\\d+):\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+.*");
while ((line = reader.readLine()) != null) {
Matcher matcher = pattern.matcher(line);
if (matcher.matches()) {
if (matcher.group(1).equals("lo")) {
continue;
}
bytesReceived += Long.parseLong(matcher.group(2));
bytesSent += Long.parseLong(matcher.group(10));
}
}
if (os.contains("win")) {
totalBytes = bytesReceived + bytesSent;
} else if (os.contains("nix") || os.contains("nux") || os.contains("aix")) {
totalBytes = bytesReceived;
}
double usageReceived = (double)bytesReceived / (double)(1024 * 1024);
double usageSent = (double)bytesSent / (double)(1024 * 1024);
double totalUsage = usageReceived + usageSent;
double receivedPercentage = usageReceived / totalUsage * 100;
double sentPercentage = usageSent / totalUsage * 100;
System.out.println("Network traffic usage:");
System.out.println("Received: " + usageReceived + " MB (" + receivedPercentage + "%)");
System.out.println("Sent: " + usageSent + " MB (" + sentPercentage + "%)");
} catch (Exception e) {
e.printStackTrace();
}
}
}
```
该程序会根据操作系统类型选择相应的命令来获取网络流量数据,然后计算接收和发送流量的占比,并输出百分比形式的结果。