这个主要实现的Java远程访问服务器的读写文件操作，自动登录读写文件
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 -->
<dependency>
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
<version>0.1.54</version>
</dependency>
文件loginServer主要类中有个getProperties这个方法是配置服务器的地址信息的，需要先配置地址信息然后调用登录去做登录的操作LoginServer.login（LoginServer.getProperties（Config.Alertkey1 +“。json”），false ）;
如果这个单独的看不懂你可以看看我在项目中是怎么使用的项目中的服务器是内网服务器需要配置成你自己的服务器
https://github.com/MAXIAODONGS/Configure
LoginServer主要的工具类
-
-
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.Connection;
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 服务器IP
* @param user 服务器用户名
* @param pwd 服务器密码
* @param port 端口
* @param privateKeyPath 可为空
* @param passphrase 可为空
* @param sourcePath 本地文件路径
* @param destinationPath 上传路径
*/
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);
}
/**
* 设置配置
* @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表示读取 false表示写入
*/
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) {
//写入本地文件到远程服务器
doWrite(ip, user, pwd, port, privateKeyPath, passphrase, sourcePath, destinationPath);
} else {
//读取远程文件到本地
readConnect();
}
}
/**
* @throws IOException
* @description 读文件
*/
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 + " ";
count++;
}
if (bufferedReader != null) {
bufferedReader.close();
}
if (fileReader != null) {
fileReader.close();
}
return result;
}
/**
* @throws UnsupportedEncodingException
* @throws IOException
* @description 写文件
*/
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("请先设置配置文件");
}
}
/**
* 密码方式登录
*
* @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) {
// 连接服务器，采用默认端口
session = jsch.getSession(user, ip);
} else {
// 采用指定的端口连接服务器
session = jsch.getSession(user, ip, port);
}
// 如果服务器连接不上，则抛出异常
if (session == null) {
throw new Exception("session is null");
}
// 设置登陆主机的密码
session.setPassword(psw);// 设置密码
// 设置第一次登陆的时候提示，可选值：(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
// 设置登陆超时时间
session.connect(300000);
UpLoadFile.upLoadFile(session, sPath, dPath);
//DownLoadFile.downLoadFile(session, sPath, dPath);
} catch (Exception e) {
e.printStackTrace();
}
System.out.println("success");
}
/**
* 密匙方式登录
*
* @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 {
// 设置密钥和密码
// 支持密钥的方式登陆，只需在jsch.getSession之前设置一下密钥的相关信息就可以了
if (privateKey != null && !"".equals(privateKey)) {
if (passphrase != null && "".equals(passphrase)) {
// 设置带口令的密钥
jsch.addIdentity(privateKey, passphrase);
} else {
// 设置不带口令的密钥
jsch.addIdentity(privateKey);
}
}
if (port <= 0) {
// 连接服务器，采用默认端口
session = jsch.getSession(user, ip);
} else {
// 采用指定的端口连接服务器
session = jsch.getSession(user, ip, port);
}
// 如果服务器连接不上，则抛出异常
if (session == null) {
throw new Exception("session is null");
}
// 设置第一次登陆的时候提示，可选值：(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
// 设置登陆超时时间
session.connect(300000);
UpLoadFile.upLoadFile(session, sPath, dPath);
System.out.println("success");
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 读取远程文件到本地
*/
private static void readConnect() {
Connection conn = new Connection(Config.hostname, Config.port);
ch.ethz.ssh2.Session ssh = null;
try {
//连接到主机
conn.connect();
//使用用户名和密码校验
boolean isconn = conn.authenticateWithPassword(Config.username, Config.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(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("文件输出成功，请在" + Config.writePath + "中查看");
}
}
} 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();
}
}
}
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 {
//上传
sftp.cd(dPath);
Scanner scanner = new Scanner(System.in);
/* System.out.println(dPath + ":此目录已存在,文件可能会被覆盖!是否继续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("正在创建目录:" + sftp.pwd() + "/" + fileName);
sftp.mkdir(fileName);
System.out.println("目录创建成功:" + 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("正在复制文件:" + 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