Hi everyone:
i'm new here, and need a help from excellent developers.
two Q please:
1- how i can run a command by java?
i hava oracle, and need to run "tnsping" on the cmd shell.
so how i can execute tnsping?.
2- how i can analyze a line that i read from file?.
i.e: i need to read a file and search on some words in it.
how can i do this by java code.
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here is the code you need ;)
static class StreamGobbler extends Thread {
private InputStream is;
private StringBuilder message = new StringBuilder("");
StreamGobbler(InputStream is) {
this.is = is;
start();
}
public String getMessage() {
return message.toString();
}
public void run() {
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line;
try {
while((line = br.readLine())!=null) {
message.append(line+"\n");
}
} catch (IOException e) {
message.append(MessagePacket.toString(e));
}
}
}
public static String executeCommand(boolean wait, String...cmd) throws IOException, InterruptedException {
Runtime runtime = Runtime.getRuntime();
Process proc = runtime.exec(cmd);
StreamGobbler esg = new StreamGobbler(proc.getErrorStream());
StreamGobbler isg = new StreamGobbler(proc.getInputStream());
if(wait) {
proc.waitFor();
esg.join();
isg.join();
}
return esg.getMessage().trim().length()>0?esg.getMessage():isg.getMessage();
}
}
the wait parameter determines wether to wait till the command finishes. In that case you get the output as return String.