Java用CMD打开指定文件和文件夹

1、打开可执行程序(exe等)

public static void main(final String[] args) throws IOException {  
    openWindowsExe();  
    openExe();  
    openFile();  
}  

// 用 Java 调用windows系统的exe文件，比如notepad，calc之类  
public static void openWindowsExe() {  
    final Runtime runtime = Runtime.getRuntime();  
    Process process = null;  
    try {  
        final String command = "notepad";// 记事本  
        process = runtime.exec(command);  
    } catch (final Exception e) {  
        System.out.println("Error win exec!");  
    }  
}  

// 调用其他的可执行文件，例如：自己制作的exe，或是 下载 安装的软件.  
public static void openExe() {  
    final Runtime runtime = Runtime.getRuntime();  
    Process process = null;  

    try {  
        process = runtime.exec("C:\\Program Files\\Notepad++\\notepad++.exe");  

    } catch (final Exception e) {  
        System.out.println("Error exec!");  
    }  
}  

// 打开其他任意格式的文件，比如txt,word等  
public static void openFile() {  
    final Runtime runtime = Runtime.getRuntime();  
    Process process = null;//  
    final String cmd = "rundll32 url.dll FileProtocolHandler file://F:\\ECT项目资料\\建立EMF工程.txt";  
    try {  
        process = runtime.exec(cmd);  
    } catch (final Exception e) {  
        System.out.println("Error exec!");  
    }  
}  

2、调用cmd打开目录

public class OpenDirectory {
public static void main(String[] args) throws IOException {
String[] cmd = new String[5];
String url = "D:\\ZTarget";
cmd[0] = "cmd";
cmd[1] = "/c";
cmd[2] = "start";
cmd[3] = " ";
cmd[4] = url;
Runtime.getRuntime().exec(cmd);
}
}