java實現讀寫服務器文件
這個主要實現的Java遠程訪問服務器的讀寫文件操作,自動登錄讀寫文件
pom.xml中要配置
<dependency>
<groupId>ch.ethz.ganymed</groupId>
<artifactId>ganymed-ssh2</artifactId>
<version>build210</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.jcraft/jsch -->
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
<version>0.1.54</version>
</dependency>
文件loginServer主要類中有個getProperties這個方法是配置服務器的地址信息的,需要先配置地址信息然後調用登錄去做登錄的操作LoginServer.login(LoginServer.getProperties(Config.Alertkey1 +“。json”),false );
如果這個單獨的看不懂你可以看看我在項目中是怎麽使用的項目中的服務器是內網服務器需要配置成你自己的服務器
https://github.com/MAXIAODONGS/Configure
LoginServer主要的工具類
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package com.maxd.upload;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import ch.ethz.ssh2.SCPClient;
import ch.ethz.ssh2.StreamGobbler;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.maxd.utils.Config;
public class LoginServer {
/**
* @param ip 服務器IP
* @param user 服務器用戶名
* @param pwd 服務器密碼
* @param port 端口
* @param privateKeyPath 可為空
* @param passphrase 可為空
* @param sourcePath 本地文件路徑
* @param destinationPath 上傳路徑
*/
private static void downLoadFile(String ip, String user, String pwd, String port, String privateKeyPath, String passphrase, String sourcePath, String destinationPath) {
doWrite(ip, user, pwd, port, privateKeyPath, passphrase, sourcePath, destinationPath);
}
/**
* 設置配置
* @param fileName
* @return
*/
public static Properties getProperties(String fileName) {
Properties properties = new Properties();
properties.setProperty("ip", Config.hostname);
properties.setProperty("user", Config.username);
properties.setProperty("pwd", Config.password);
properties.setProperty("port", String.valueOf(Config.port));
properties.setProperty("sourcePath", Config.sourcePath + fileName);
properties.setProperty("destinationPath", Config.destinationPath);
return properties;
}
/**
* @param properties
* @param isRead true表示讀取 false表示寫入
*/
public static void login(Properties properties, boolean isRead) {
String ip = properties.getProperty("ip");
String user = properties.getProperty("user");
String pwd = properties.getProperty("pwd");
String port = properties.getProperty("port");
String privateKeyPath = properties.getProperty("privateKeyPath");
String passphrase = properties.getProperty("passphrase");
String sourcePath = properties.getProperty("sourcePath");
String destinationPath = properties.getProperty("destinationPath");
if (!isRead) {
//寫入本地文件到遠程服務器
doWrite(ip, user, pwd, port, privateKeyPath, passphrase, sourcePath, destinationPath);
} else {
//讀取遠程文件到本地
readConnect();
}
}
/**
* @throws IOException
* @description 讀文件
*/
public static String readTxtFile(File fileName) throws IOException {
String result = null;
FileReader fileReader = null;
BufferedReader bufferedReader = null;
fileReader = new FileReader(fileName);
InputStreamReader isr = new InputStreamReader(new FileInputStream(fileName), "UTF-8");
BufferedReader bufferedReader1 = new BufferedReader(isr);
String read = null;
int count = 0;
while ((read = bufferedReader1.readLine()) != null) {
result = read + "\r\n";
count++;
}
if (bufferedReader != null) {
bufferedReader.close();
}
if (fileReader != null) {
fileReader.close();
}
return result;
}
/**
* @throws UnsupportedEncodingException
* @throws IOException
* @description 寫文件
*/
public static boolean writeTxtFile(String content, File fileName) throws UnsupportedEncodingException, IOException {
FileOutputStream o = null;
o = new FileOutputStream(fileName);
o.write(content.getBytes("UTF-8"));
o.close();
return true;
}
private static void doWrite(String ip, String user, String pwd, String port, String privateKeyPath, String passphrase, String sourcePath, String destinationPath) {
if (ip != null && !ip.equals("") && user != null && !user.equals("") && port != null && !port.equals("") && sourcePath != null && !sourcePath.equals("") && destinationPath != null && !destinationPath.equals("")) {
if (privateKeyPath != null && !privateKeyPath.equals("")) {
sshSftp2(ip, user, Integer.parseInt(port), privateKeyPath,
passphrase, sourcePath, destinationPath);
} else if (pwd != null && !pwd.equals("")) {
sshSftp(ip, user, pwd, Integer.parseInt(port), sourcePath,
destinationPath);
} else {
Console console = System.console();
System.out.print("Enter password:");
char[] readPassword = console.readPassword();
sshSftp(ip, user, new String(readPassword),
Integer.parseInt(port), sourcePath, destinationPath);
}
} else {
System.out.println("請先設置配置文件");
}
}
/**
* 密碼方式登錄
*
* @param ip
* @param user
* @param psw
* @param port
* @param sPath
* @param dPath
*/
private static void sshSftp(String ip, String user, String psw, int port,
String sPath, String dPath) {
System.out.println("password login");
Session session = null;
JSch jsch = new JSch();
try {
if (port <= 0) {
// 連接服務器,采用默認端口
session = jsch.getSession(user, ip);
} else {
// 采用指定的端口連接服務器
session = jsch.getSession(user, ip, port);
}
// 如果服務器連接不上,則拋出異常
if (session == null) {
throw new Exception("session is null");
}
// 設置登陸主機的密碼
session.setPassword(psw);// 設置密碼
// 設置第一次登陸的時候提示,可選值:(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
// 設置登陸超時時間
session.connect(300000);
UpLoadFile.upLoadFile(session, sPath, dPath);
//DownLoadFile.downLoadFile(session, sPath, dPath);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("success");
}
/**
* 密匙方式登錄
*
* @param ip
* @param user
* @param port
* @param privateKey
* @param passphrase
* @param sPath
* @param dPath
*/
private static void sshSftp2(String ip, String user, int port,
String privateKey, String passphrase, String sPath, String dPath) {
System.out.println("privateKey login");
Session session = null;
JSch jsch = new JSch();
try {
// 設置密鑰和密碼
// 支持密鑰的方式登陸,只需在jsch.getSession之前設置一下密鑰的相關信息就可以了
if (privateKey != null && !"".equals(privateKey)) {
if (passphrase != null && "".equals(passphrase)) {
// 設置帶口令的密鑰
jsch.addIdentity(privateKey, passphrase);
} else {
// 設置不帶口令的密鑰
jsch.addIdentity(privateKey);
}
}
if (port <= 0) {
// 連接服務器,采用默認端口
session = jsch.getSession(user, ip);
} else {
// 采用指定的端口連接服務器
session = jsch.getSession(user, ip, port);
}
// 如果服務器連接不上,則拋出異常
if (session == null) {
throw new Exception("session is null");
}
// 設置第一次登陸的時候提示,可選值:(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
// 設置登陸超時時間
session.connect(300000);
UpLoadFile.upLoadFile(session, sPath, dPath);
System.out.println("success");
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 讀取遠程文件到本地
*/
private static void readConnect() {
Connection conn = new Connection(Config.hostname, Config.port);
ch.ethz.ssh2.Session ssh = null;
try {
//連接到主機
conn.connect();
//使用用戶名和密碼校驗
boolean isconn = conn.authenticateWithPassword(Config.username, Config.password);
if (!isconn) {
System.out.println("用戶名稱或者是密碼不正確");
} else {
System.out.println("已經連接OK");
File folder = new File(Config.writePath);
if (!folder.exists()) {
folder.mkdir();
}
SCPClient clt = conn.createSCPClient();
ssh = conn.openSession();
ssh.execCommand("find /app/s3-configuration/ -name ‘*.json‘");
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, Config.writePath);
List<File> lf = new ArrayList<File>();
lf = getFileList(new File(Config.writePath), "json");
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();
}
}
System.out.println("文件輸出成功,請在" + Config.writePath + "中查看");
}
}
} catch (IOException e) {
System.out.println(e.getMessage());
e.printStackTrace();
} finally {
//連接的Session和Connection對象都需要關閉
if (ssh != null) {
ssh.close();
}
if (conn != null) {
conn.close();
}
}
}
private static 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;
}
}
package com.maxd.upload;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Scanner;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
public class UpLoadFile {
public static void upLoadFile(Session session, String sPath, String dPath) {
Channel channel = null;
try {
channel = (Channel) session.openChannel("sftp");
channel.connect(10000000);
ChannelSftp sftp = (ChannelSftp) channel;
try {
//上傳
sftp.cd(dPath);
Scanner scanner = new Scanner(System.in);
/* System.out.println(dPath + ":此目錄已存在,文件可能會被覆蓋!是否繼續y/n?");
String next = scanner.next();
if (!next.toLowerCase().equals("y")) {
return;
}*/
} catch (SftpException e) {
sftp.mkdir(dPath);
sftp.cd(dPath);
}
File file = new File(sPath);
copyFile(sftp, file, sftp.pwd());
} catch (Exception e) {
e.printStackTrace();
} finally {
session.disconnect();
channel.disconnect();
}
}
public static void copyFile(ChannelSftp sftp, File file, String pwd) {
if (file.isDirectory()) {
File[] list = file.listFiles();
try {
try {
String fileName = file.getName();
sftp.cd(pwd);
System.out.println("正在創建目錄:" + sftp.pwd() + "/" + fileName);
sftp.mkdir(fileName);
System.out.println("目錄創建成功:" + sftp.pwd() + "/" + fileName);
} catch (Exception e) {
// TODO: handle exception
}
pwd = pwd + "/" + file.getName();
try {
sftp.cd(file.getName());
} catch (SftpException e) {
// TODO: handle exception
e.printStackTrace();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (int i = 0; i < list.length; i++) {
copyFile(sftp, list[i], pwd);
}
} else {
try {
sftp.cd(pwd);
} catch (SftpException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
System.out.println("正在復制文件:" + file.getAbsolutePath());
InputStream instream = null;
OutputStream outstream = null;
try {
outstream = sftp.put(file.getName());
instream = new FileInputStream(file);
byte b[] = new byte[1024];
int n;
try {
while ((n = instream.read(b)) != -1) {
outstream.write(b, 0, n);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (SftpException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
outstream.flush();
outstream.close();
instream.close();
} catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
}
}
}
文件地址
https://github.com/MAXIAODONGS/Remote-operation-of-static-resources
java實現讀寫服務器文件