java实现远程连接服务器，监控某个目录下的日志文件
来源：互联网 发布：二代身份证识别器java 编辑：程序博客网 时间：2024/06/01 11:03
import java.io.BufferedReader;import java.io.DataInputStream;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;import java.util.regex.Matcher;import java.util.regex.Pattern;import ch.ethz.ssh2.Connection;import ch.ethz.ssh2.SCPClient;import ch.ethz.ssh2.SFTPv3Client;import ch.ethz.ssh2.Session;import ch.ethz.ssh2.StreamGobbler;public class TestRemoteConnect { public static void main(String[] args) { String hostname = "xxx.xxx.xxx.xxx"; int port = 22; String username = "xxx"; String password = "xxx"; Connection conn = new Connection(hostname,port); Session ssh = null; try { //连接到主机 conn.connect(); //使用用户名和密码校验 boolean isconn = conn.authenticateWithPassword(username, password); if (!isconn) { System.out.println("用户名称或者是密码不正确"); } else { System.out.println("已经连接OK"); File folder = new File("D://logs"); if(!folder.exists()){ folder.mkdir(); } SCPClient clt = conn.createSCPClient(); ssh = conn.openSession(); ssh.execCommand("find /dev/shm/M/ -name '*.txt'"); InputStream is = new StreamGobbler(ssh.getStdout()); BufferedReader brs = new BufferedReader(new InputStreamReader(is)); while (true) { String line = brs.readLine(); if (line == null) { break; } clt.get(line, "D://logs"); List<File> lf = new ArrayList<File>(); test1 t = new test1(); lf = t.getFileList(new File("D://logs"),"txt"); for(File f:lf){ /*System.out.println(f.getPath());*/ String path=f.getPath(); File file = new File(path); try{ FileReader fr = new FileReader(file); BufferedReader br = new BufferedReader(fr); String s = null; Pattern p = Pattern.compile(".*?error.*?"); while((s = br.readLine()) != null){ Matcher m = p.matcher(s); if(m.find()) { /*System.out.println(m.matches());*/ System.out.println(line); System.out.println("find error!"); }/*else{ System.out.println("no error"); }*/ } br.close(); }catch(FileNotFoundException e){ System.err.println("file not found"); }catch(IOException e){ e.printStackTrace(); } } } } } catch (IOException e) { System.out.println(e.getMessage()); e.printStackTrace(); } finally { //连接的Session和Connection对象都需要关闭 if(ssh!=null) { ssh.close(); } if(conn!=null) { conn.close(); } } } public List<File> getFileList(File fileDir,String fileType){List<File> lfile = new ArrayList<File>();File[] fs = fileDir.listFiles();for(File f:fs){if(f.isFile()){if (fileType.equals(f.getName().substring(f.getName().lastIndexOf(".")+1, f.getName().length())))lfile.add(f);}else{List<File> ftemps = getFileList(f, fileType);lfile.addAll(ftemps);}}return lfile;}}
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