我需要从 java 执行(运行)驻留在服务器(Solaris)中的 shell 脚本。请帮助我如何从java执行文件?我尝试过 TelnetToClient 的 sendCommand() 。所以请帮助我从 GUI 运行文件。
程序是这样的。
TelnetToPort tele = new TelnetToPort("opmer3");
tele.login("root","root");
String command_ = "/usr/bin/bash /opt/nrl/logs/applications/ns/lccommands.sh";
tele.runComm(command_);
最佳答案
如果您正在寻找为您的 java 类执行任何脚本的优化解决方案,那么您可以将 Jsch 与 Google Expect4j 库结合使用。
对于 jsch,请转到 http://www.jcraft.com/jsch/
对于 Expect4j,请转到 http://code.google.com/p/expect4j/
以下是用于登录远程 java 类并执行文件的小代码示例。
private Expect4j SSH(String hostname, String username,String password, int port) throws Exception {
JSch jsch = new JSch();
Session session = jsch.getSession(username, hostname, port);
if (password != null) {
session.setPassword(password);
}
Hashtable<String,String> config = new Hashtable<String,String>();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
session.connect(60000);
channel = (ChannelShell) session.openChannel("shell");
Expect4j expect = new Expect4j(channel.getInputStream(), channel.getOutputStream());
channel.connect();
return expect;
}
此方法将打开到远程服务器的 SSH 流,expect4j 将使用该流来发送命令。
private boolean executeCommands() {
boolean isSuccess = true;
Closure closure = new Closure() {
public void run(ExpectState expectState) throws Exception {
buffer.append(expectState.getBuffer());
expectState.exp_continue();
}
};
List<Match> lstPattern = new ArrayList<Match>();
String[] regEx = SSHConstants.linuxPromptRegEx;
if (regEx != null && regEx.length > 0) {
synchronized (regEx) {
for (String regexElement : regEx) {//list of regx like, :>, /> etc. it is possible command prompts of your remote machine
try {
RegExpMatch mat = new RegExpMatch(regexElement, closure);
lstPattern.add(mat);
} catch (MalformedPatternException e) {
return false;
} catch(Exception e) {
return false;
}
}
lstPattern.add(new EofMatch( new Closure() { // should cause entire page to be collected
public void run(ExpectState state) {
}
}));
lstPattern.add(new TimeoutMatch(defaultTimeOut, new Closure() {
public void run(ExpectState state) {
}
}));
}
}
try {
Expect4j expect = SSH(objConfig.getHostAddress(), objConfig.getUserName(), objConfig.getPassword(), SSHConstants.SSH_PORT);
expect.setDefaultTimeout(defaultTimeOut);
if(isSuccess) {
for(String strCmd : lstCmds)
isSuccess = isSuccess(lstPattern,strCmd);
}
boolean isFailed = checkResult(expect.expect(lstPattern));
return !isFailed;
} catch (Exception ex) {
return false;
} finally {
closeConnection();
}
}
private boolean isSuccess(List<Match> objPattern,String strCommandPattern) {
try {
boolean isFailed = checkResult(expect.expect(objPattern));
if (!isFailed) {
expect.send(strCommandPattern);
expect.send("\r");
return true;
}
return false;
} catch (MalformedPatternException ex) {
return false;
} catch (Exception ex) {
return false;
}
}
希望这有帮助。
谢谢。
关于java - 需要从java执行shell脚本,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4601436/