java实现读写服务器文件
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
ch.ethz.ganymed
ganymed-ssh2
build210
com.jcraft
jsch
0.1.54
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 ）;
核心代码 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 + "\r\n";
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 lf = new ArrayList();
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 getFileList(File fileDir, String fileType) {
List lfile = new ArrayList();
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 ftemps = getFileList(f, fileType);
lfile.addAll(ftemps);
}
}
return lfile;
}
}
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