在myEclpise環(huán)境下，這種方法怎么不行？！例如，我在MyEclipse環(huán)境下給出的兩個(gè)程序：package multipleProcess;

/*
* Test3.java
*
* Created on 2007-9-27, 11:46:31
*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

import java.io.File;
import java.io.IOException;
import java.util.Map;

/**
*
* @author hadeslee
*/
public class test3 {
public static void main(String[] args) throws IOException{
//用一條指定的命令去構(gòu)造一個(gè)進(jìn)程生成器
ProcessBuilder pb=new ProcessBuilder("java","test2");

pb.start();
//讓這個(gè)進(jìn)程的工作區(qū)空間改為F:\dist
//這樣的話,它就會(huì)去F:\dist目錄下找Test.jar這個(gè)文件
//pb.directory(new File("d:\\dist"));
//得到進(jìn)程生成器的環(huán)境 變量,這個(gè)變量我們可以改,
//改了以后也會(huì)反應(yīng)到新起的進(jìn)程里面去
Map<String,String> map=pb.environment();
Process p=pb.start();
//然后就可以對(duì)p做自己想做的事情了
//自己這個(gè)時(shí)候就可以退出了
System.exit(0);
}
}
package multipleProcess;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;

/**
*
* @author hadeslee
*/
public class test2 extends JPanel{

private JTextField input;
private JButton go;

public test2() {
super(new BorderLayout());
initWindow();
}

private void initWindow() {
try {

go = new JButton("轉(zhuǎn)到");
input = new JTextField();
JPanel up = new JPanel(new BorderLayout());
up.add(input, BorderLayout.CENTER);
up.add(go, BorderLayout.EAST);
this.add(up, BorderLayout.NORTH);

} catch (Exception ex) { }
JFrame jf = new JFrame("JAVA瀏覽器");
jf.add(this, BorderLayout.CENTER);
jf.setSize(500, 300);
jf.setLocationRelativeTo(null);
jf.setVisible(true);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

public void actionPerformed(ActionEvent ae) {
doOpen();
}

private void doOpen() {
// try {
String text = input.getText();
if (text == null || text.equals("")) {
return;
}
if (!text.toLowerCase().startsWith("http://")) {
text = "http://" + text;
}
/* } catch (MalformedURLException ex) {
Logger.getLogger(Test1.class.getName()).log(Level.SEVERE, null, ex);
}*/
}

public static void main(String[] args) {
new test2();

}
}

當(dāng)然，上面的兩個(gè)程序，去掉package之后，在命令行下能得到預(yù)期結(jié)果，但在MyEclipse環(huán)境下，就得不到預(yù)期結(jié)果！
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@游客
因?yàn)閙yEclipse改變了程序運(yùn)行的進(jìn)程目錄  回復(fù)  更多評(píng)論