应用服务器上在线备份Oracle数据库代码

时间:2017-02-14 23:20 来源:linux.it.net.cn 作者:IT

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
class StreamGobbler extends Thread {
InputStream is;
String type;
StreamGobbler(InputStream is, String type) {
this.is = is;
this.type = type;
}
public void run() {
try {
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line=null;
while ( (line = br.readLine()) != null)
System.out.println(type + ">" + line);
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
public class Test {
public static void main(String args[]) {
args = new String[1];
args[0]="exp zcgl/zcgl@db190 file=d:/test.dmp";
if (args.length < 1) {
System.out.println("USAGE: java GoodWindowsExec <cmd>");
System.exit(1);
}
try {
String osName = System.getProperty("os.name" );
System.out.println(osName);
String[] cmd = new String[3];
if( osName.equals( "Windows NT" ) ) {
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
} else if( osName.equals( "Windows XP" ) ) {
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
} else if( osName.equals( "Windows 95" ) ) {
cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
} else if( osName.equals( "Windows Vista" ) ) {
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
}
Runtime rt = Runtime.getRuntime();
System.out.println("Execing " + cmd[0] + " " + cmd[1]
+ " " + cmd[2]);
Process proc = rt.exec(cmd);
// any error message?
StreamGobbler errorGobbler = new
StreamGobbler(proc.getErrorStream(), "");
// any output?
StreamGobbler outputGobbler = new
StreamGobbler(proc.getInputStream(), "");
// kick them off
errorGobbler.start();
outputGobbler.start();
// any error???
int exitVal = proc.waitFor();
System.out.println("ExitValue: " + exitVal);
} catch (Throwable t) {
t.printStackTrace();
}
}
}

做在线备份时，输出做一个修改，动态把输出内容传到浏览器页面上去。

(责任编辑：IT)