JAVA解压rar文件

import java.io.BufferedReader;
import java.io.InputStreamReader;

/**
 * @author zhaoliangyuan
 * @E-mail [e-mail]
 * @dateTime 2010/7/20 上午 10:21:07 类说明:解壓壓縮文件
 */
public class Test22 {
	/**
	 * 
	 * 解压rar文件
	 * 
	 * 
	 * 
	 * @param targetPath
	 * 
	 * @param absolutePath
	 * 
	 */

	public void unRarFile(String targetPath, String absolutePath) {

		try {

			// 系统安装winrar的路径

			String cmd = "C:\\Program Files\\WinRAR\\winrar.exe";

			String unrarCmd = cmd + " x -r -p- -o+ " + absolutePath + " " + targetPath;

			Runtime rt = Runtime.getRuntime();

			Process pre = rt.exec(unrarCmd);

			InputStreamReader isr = new InputStreamReader(pre.getInputStream());

			BufferedReader bf = new BufferedReader(isr);

			String line = null;

			while ((line = bf.readLine()) != null) {

				line = line.trim();

				if ("".equals(line)) {

					continue;

				}

				System.out.println(line);

			}

			bf.close();

		} catch (Exception e) {
			System.out.println("解压发生异常");
		}
	}

	/**
	 * 
	 * @param args
	 * 
	 */

	public static void main(String[] args) {
		//須手動建立解壓後的文件夾

		String targetPath = "D:\\R000072";

		String rarFilePath = "D:\\apache-ant-1.6.5-bin.zip";

		Test22 unrar = new Test22();

		unrar.unRarFile(targetPath, rarFilePath);

	}

}