在Java中解析/proc/PID/net/tcp和/proc/PID/net/tcp6文件中的IP地址,可以通过以下步骤实现:
以下是一个示例代码,演示如何在Java中解析/proc/PID/net/tcp和/proc/PID/net/tcp6文件中的IP地址:
import java.io.BufferedReader;
import java.io.FileReader;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.List;
public class TcpFileParser {
public static void main(String[] args) {
int pid = ProcessHandle.current().pid(); // 获取当前进程的ID
List<String> ipAddresses = parseTcpFile(pid);
System.out.println("解析到的IP地址列表:");
for (String ipAddress : ipAddresses) {
System.out.println(ipAddress);
}
}
public static List<String> parseTcpFile(int pid) {
List<String> ipAddresses = new ArrayList<>();
try {
BufferedReader reader = new BufferedReader(new FileReader("/proc/" + pid + "/net/tcp"));
String line;
while ((line = reader.readLine()) != null) {
String[] fields = line.trim().split("\\s+");
if (fields.length >= 4) {
String localAddress = fields[2].split(":")[0];
String remoteAddress = fields[3].split(":")[0];
ipAddresses.add(parseIpAddress(localAddress));
ipAddresses.add(parseIpAddress(remoteAddress));
}
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new FileReader("/proc/" + pid + "/net/tcp6"));
String line;
while ((line = reader.readLine()) != null) {
String[] fields = line.trim().split("\\s+");
if (fields.length >= 4) {
String localAddress = fields[2].split(":")[0];
String remoteAddress = fields[3].split(":")[0];
ipAddresses.add(parseIpAddress(localAddress));
ipAddresses.add(parseIpAddress(remoteAddress));
}
}
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
return ipAddresses;
}
public static String parseIpAddress(String hexAddress) {
try {
long address = Long.parseLong(hexAddress, 16);
byte[] bytes = new byte[]{
(byte) (address & 0xFF),
(byte) ((address >> 8) & 0xFF),
(byte) ((address >> 16) & 0xFF),
(byte) ((address >> 24) & 0xFF)
};
InetAddress inetAddress = InetAddress.getByAddress(bytes);
return inetAddress.getHostAddress();
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
}
请注意,上述代码仅提供了解析/proc/PID/net/tcp和/proc/PID/net/tcp6文件中IP地址的基本实现。在实际应用中,还需要根据具体需求进行适当的错误处理、异常处理和数据结构设计。
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