Ganymed实现基本的自动化部署API
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- Ganymed
SSH-2 for Java是一个纯Java实现的SHH2库,官网为http://www.ganymed.ethz.ch/ssh2/,最新的更新时间为2006年10月,在用之前,请仔细看一下FAQ,真的能避免很多很多问题
在google上找到的ganymed-ssh2的官网是http://www.ganymed.ethz.ch/ssh2/,进去看官网的英文简介可以看到该网站已经不维护该项目,并已经迁移到http://www.cleondris.ch/,在这个网站点击右上角的Contact,再点击open source就可以看到这个项目的新家,http://www.cleondris.ch/opensource/ssh2/,上面简单介绍了该项目能远程连接上远程机器,支持命令模式和shell模式,本地和远程端口转发,没有任何JCE依赖等,最后特别指出这个项目是为瑞士苏黎世的一个项目所创建。下面提供了2010-08-23发布的ganymed-ssh2-build251beta1.zip可供下载使用,下面还有在线文档和FAQ供开发者参考。 - JSch
采用java编写,使用ssh来操作远程服务器。JSch 是SSH2的一个纯Java实现。它允许你连接到一个sshd 服务器,支持文件的上传和下载,支持在远程机上执行shell命令、shell脚本、重启等操作。
但是这个类库偏向底层,仅是ssh2的实现,连文件夹的上传下载都不支持,并不是针对自动化部署的,编写的代码比较长,上手和实际使用起来不太方便,所以要对其进行必要的封装,比如封装连接的获取释放、文件夹和文件的拷贝、远程命令的执行等。 sshxcute
sshxcute 框架是对JSch 的简单封装,提供了更为便捷的 API 接口,提供了更加灵活实用的功能,从而可以让开发人员更加得心应手的使用。sshxcute 是一个框架,它允许工程师利用 Java 代码通过 SSH 连接远程执行 Linux/UNIX 系统上的命令或者脚本,这种方式不管是针对软件测试还是系统部署,都简化了自动化测试与系统环境部署的步骤。
但是它的封装比较简单,功能比较弱,只有上传和执行命令或脚本的功能。包装Ganymed。实现了文件的上传下载,文件夹的上传,远程执行命令,执行本地命令等基础API:
package base;
import java.io.IOException;
import java.io.InputStream;
public final class ExecLocakCommand {
public static final String processUseBasic(String cmd) {
Process p = null;
StringBuilder sb = new StringBuilder();
try {
String os = System.getProperty("os.name").toLowerCase();
if (os.startsWith("win")) {
String commands = "cmd /c " + cmd;
p = Runtime.getRuntime().exec(commands);
} else if (os.startsWith("linux")) {
String[] commands = new String[] { "/bin/sh", "-c", cmd };
p = Runtime.getRuntime().exec(commands);
}
String error = read(p.getErrorStream());
String outInfo = read(p.getInputStream());
String resultCode = "0";// 脚本中输出0表示命令执行成功
if (error.length() != 0) { // 如果错误流中有内容,表明脚本执行有问题
resultCode = "1";
}
sb.append(resultCode).append("\n");
sb.append(error).append("\n");
sb.append(outInfo);
p.waitFor();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
p.getErrorStream().close();
p.getInputStream().close();
p.getOutputStream().close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
public static final String read(InputStream in) throws IOException {
StringBuilder sb = new StringBuilder();
int ch;
while (-1 != (ch = in.read()))
sb.append((char) ch);
return sb.toString();
}
public static void main(String[] args) {
String comands = "dir";
//String comands = "ls ";
String ret = ExecLocakCommand.processUseBasic(comands);
System.out.println(ret);
}
}
package base;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;
public class propertyUtil {
private static Properties prop = new Properties();
private static void load(String fileName) {
try {
prop.load(new FileInputStream(fileName));
} catch (IOException e) {
e.printStackTrace();
}
}
public static String getProperty(String fileName, String key) {
load(fileName);
return prop.getProperty(key);
}
public static void setProper(String fileName, String key, String value) {
try {
load(fileName);
prop.setProperty(key, value);
FileOutputStream fos = new FileOutputStream(fileName);
prop.store(fos, null);
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
System.out.println(propertyUtil.getProperty("test.properties", "key"));
propertyUtil.setProper("test.properties", "key", "xxxx");
System.out.println(propertyUtil.getProperty("test.properties", "key"));
}
}
package base;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import com.google.common.base.Splitter;
import ch.ethz.ssh2.ChannelCondition;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.SCPClient;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;
public class RemoteExecutionApi {
private int port = 22;
private String username;
private String password;
public RemoteExecutionApi(int port, String username, String password) {
super();
this.port = port;
this.username = username;
this.password = password;
}
public RemoteExecutionApi(String username, String password) {
super();
this.username = username;
this.password = password;
}
// 下载文件,目前只能下载单个文件
public void getFile(String remoteFile, String localTargetDirectory, String ips) {
Iterable<String> result = Splitter.on(‘,‘).trimResults().omitEmptyStrings().split(ips);
for (String ip : result) {
Connection conn = new Connection(ip, port);
try {
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
System.err.println("authentication failed");
}
SCPClient client = new SCPClient(conn);
client.get(remoteFile, localTargetDirectory);
conn.close();
} catch (IOException ex) {
ex.printStackTrace();
// Logger operator
System.exit(2);
}
}
}
//上传文件或者文件夹
public void putFile(String localFile, String remoteTargetDirectory, String ips) {
Iterable<String> result = Splitter.on(‘,‘).trimResults().omitEmptyStrings().split(ips);
for (String ip : result) {
Connection conn = new Connection(ip, port);
try {
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
System.err.println("authentication failed");
}
// folder
if (new File(localFile).isDirectory()) {
// 先创建根目录
String dirName = new File(localFile).getName();
remoteTargetDirectory = remoteTargetDirectory + "/" + dirName;
Session sess1 = conn.openSession();
sess1.execCommand("mkdir -p " + remoteTargetDirectory);
sess1.waitForCondition(ChannelCondition.EOF, 0);
sess1.close();
putDir(conn, localFile, remoteTargetDirectory);
} else if (new File(localFile).isFile()) {// file
SCPClient client = new SCPClient(conn);
client.put(localFile, remoteTargetDirectory);
}
conn.close();
} catch (IOException ex) {
ex.printStackTrace();
// Logger operator
System.exit(2);
}
}
}
private void putDir(Connection conn, String localDirectory, String remoteTargetDirectory) throws IOException {
String[] fileList = new File(localDirectory).list();
for (String file : fileList) {
String fullFileName = localDirectory + new File(localDirectory).separator + file;
if (new File(fullFileName).isDirectory()) {
final String subDir = remoteTargetDirectory + "/" + file;
Session sess = conn.openSession();
sess.execCommand("mkdir " + subDir);
sess.waitForCondition(ChannelCondition.EOF, 0);
sess.close();
putDir(conn, fullFileName, subDir);
} else {
SCPClient client = new SCPClient(conn);
client.put(fullFileName, remoteTargetDirectory);
}
}
}
// 执行命令
public String runCommand(String command, String ips) {
StringBuilder sb = new StringBuilder();
Iterable<String> result = Splitter.on(‘,‘).trimResults().omitEmptyStrings().split(ips);
for (String ip : result) {
Connection conn = new Connection(ip, port);
try {
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
System.err.println("authentication failed");
}
Session sess = conn.openSession();
sess.execCommand(command);
InputStream stdout = new StreamGobbler(sess.getStdout());
BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
while (true) {
String line = br.readLine();
if (line == null)
break;
sb.append(line).append("\n");
}
System.out.println("ExitCode: " + sess.getExitStatus());
br.close();
sess.close();
conn.close();
} catch (IOException ex) {
ex.printStackTrace(System.err);
// Logger operator
System.exit(2);
}
}
return sb.toString();
}
// 删除临时文件
public void delTempDir(String remotePath, String ips) {
runCommand("rm -rf " + remotePath, ips);
}
// 修改配置文件
public void modfiyPropertyFile(String remoteFileName, String key, String value, String ips) {
String tempDir = "tempDir";
File folder = new File(tempDir);
folder.mkdirs();
Iterable<String> result = Splitter.on(‘,‘).trimResults().omitEmptyStrings().split(ips);
for (String ip : result) {
Connection conn = new Connection(ip, port);
try {
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
System.err.println("authentication failed");
}
SCPClient client = new SCPClient(conn);
client.get(remoteFileName, tempDir);
String tmpFileName = tempDir + File.separator
+ remoteFileName.substring(remoteFileName.lastIndexOf("/"));
propertyUtil.setProper(tmpFileName, key, value);
client.put(tmpFileName, remoteFileName.substring(0, remoteFileName.lastIndexOf(‘/‘)));
conn.close();
} catch (IOException ex) {
ex.printStackTrace(System.err);
// Logger operator
System.exit(2);
}
}
clearDir(folder);
}
private void clearDir(File file) {
if (file.isDirectory()) {
for (File f : file.listFiles()) {
clearDir(f);
f.delete();
}
}
file.delete();
}
// 在配置文件后添加新行
public void propertyFileAddNewline(String remoteFileName, String newline, String ips) {
runCommand("echo " + newline + " >> " + remoteFileName, ips);
}
// 重启机器
public void reboot(String ips) {
runCommand("reboot", ips);
}
// 执行本地命令
public String runLoaclCommand(String command) {
return ExecLocakCommand.processUseBasic(command);
}
public static void main(String[] args) {
RemoteExecutionApi client = new RemoteExecutionApi("root", "123456");
// client.getFile("/root/test.txt","C:", "192.168.238.129");
//client.putFile("D:\\test", "/root", "192.168.238.129");
// String ret = client.runCommand("ls /", "192.168.238.129");
// System.out.println(ret);
// client.putDir("D:\\test", "/root", "192.168.238.129");
// client.modfiyPropertyFile("/root/test.proprety", "key", "yyy",
// "192.168.238.129");
// client.propertyFileAddNewline("/root/xx.txt", "yyyyy=xxxxx",
// "192.168.238.129");
String ret = client.runLoaclCommand("dir");
System.out.println(ret);
System.out.println("----");
}
}
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