我正在ubuntu12.04和eclipse3.7上使用hadoop1.0.3,并且正在开发一个gui来使用windowbuiderpro执行hadoop作业。我需要从gui执行包含代码的jar文件。我已经成功地使用了runtime.getruntime.exec()方法。但是,虽然它确实执行特定于dfs的命令,但它不能执行.jar文件,就像发行版附带的piestimator一样。我的代码如下:
JButton btnYrhtrdsf = new JButton("Start Daemons");
btnYrhtrdsf.addMouseListener(new MouseAdapter()
{
@Override
public void mouseClicked(MouseEvent e)
{
try { //WORKING
Runtime.getRuntime().exec("/usr/local/hadoop/hadoop-1.0.3/bin/start-dfs.sh");
Runtime.getRuntime().exec("/usr/local/hadoop/hadoop-1.0.3/bin/start-mapred.sh");
}
catch (IOException e1) {
e1.printStackTrace();
}
}
});
contentPane.add(btnYrhtrdsf, "16, 10");
JButton btnMakeDirectory = new JButton("Make Folder in HDFS");
btnMakeDirectory.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {//WORKING
try {
Runtime.getRuntime().exec("/usr/local/hadoop/hadoop-1.0.3/bin/hadoop dfs -mkdir input2");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
contentPane.add(btnMakeDirectory, "12, 18");
JButton btnStopDaemons = new JButton("Stop Daemons");
btnStopDaemons.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
try { //WORKING
Runtime.getRuntime().exec("/usr/local/hadoop/hadoop-1.0.3/bin/stop-dfs.sh");
Runtime.getRuntime().exec("/usr/local/hadoop/hadoop-1.0.3/bin/stop-mapred.sh");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
contentPane.add(btnStopDaemons, "16, 18");
JButton btnPiestimator = new JButton("PiEstimator");
btnPiestimator.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
try { //PROBLEM!!!!!
Runtime.getRuntime().exec("/usr/local/hadoop/hadoop-1.0.3/bin/hadoop jar hadoop-examples-1.0.3.jar pi 2 5");
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
});
contentPane.add(btnPiestimator, "14, 26");
}
1条答案
按热度按时间6fe3ivhb1#
替换下一行
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