package UnZip;import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; public class UnRARFile {//系统安装的winRAR位置 private static final String WINRAR_PATH = "C:\\Program Files\\WinRAR\\WinRAR.exe"; /*** 解压方法* @param rarFilePath rar压缩文件路径* @param unFilePath 要解压的到指定的路径* @throws IOException IO异常* @throws InterruptedException */public static void unRARFile(String rarFilePath,String unFilePath) throws IOException, InterruptedException { File file = new File(unFilePath); if(!file.exists()) //如果发现指定解压的路径不存在，创建目录 { file.mkdirs(); } String cmd = WINRAR_PATH + " x -r -o+ -ibck -y " + rarFilePath+" "+ unFilePath; //需要执行的命令 Runtime runtime = Runtime.getRuntime(); //得到命令对象 Process process = runtime.exec(cmd); //获取执行命令过程中返回的流 //下面是打印出流的内容，查看是否有异常 InputStreamReader isr = new InputStreamReader(process.getInputStream(),"gbk"); BufferedReader br = new BufferedReader(isr);// String line;// while((line = br.readLine()) != null){// System.out.println(line);// }// br = new BufferedReader(new InputStreamReader(process.getErrorStream(),"gbk"));// while((line=br.readLine()) != null){// System.out.println(line);// }// process.waitFor();String str = null; while((str=br.readLine())!=null) { if(!"".equals(str.trim())&&str!=null) //如果当前行不为空 { System.out.println(str); } } br.close(); } public static void main(String args[]) throws InterruptedException{String rarPath = "C:\\Users\\zm\\Desktop\\Sping3.1.1.rar"; String unRarPath = "C:\\Users\\zm\\Desktop\\test"; try { UnRARFile.unRARFile(rarPath, unRarPath); } catch (IOException e) { System.out.println("出现异常...."); e.printStackTrace(); } }}
这个不太懂的地方是那个cmd命令，其他的地方都不太难。
