java执行cmd命令并获取输出结果

1.java执行cmd命令并获取输出结果

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

 import org.apache.commons.lang3.text.StrBuilder;

 /**
  *
  * @author user1
  */
 public class DeleteProgram {
     public static void run() {
         Runtime runtime = Runtime.getRuntime();
         try {
             BufferedReader br = new BufferedReader(new InputStreamReader(runtime.exec("ipconfig").getInputStream()));
             //StringBuffer b = new StringBuffer();
             String line=null;
             StringBuffer b=new StringBuffer();
             while ((line=br.readLine())!=null) {
                 b.append(line+"\n");
             }
             System.out.println(b.toString());
         } catch (Exception e) {
             e.printStackTrace();
         }

     }

     public static void main(String[] args) {
         DeleteProgram delp = new DeleteProgram();
         delp.run();
     }

 }

2.获取您需要的字段

public static String getbackage(String path){
     Process p;
        //test.bat中的命令是ipconfig/all
        String cmd = "aapt dump badging " + path;
//        String cmd="jarsigner -verify -verbose -certs C:\\Users\\Administrator\\Desktop\\PandaClient.apk";
        String resultstr = null;
        try
        {
            //执行命令
            p = Runtime.getRuntime().exec(cmd);
            //取得命令结果的输出流
            InputStream fis=p.getInputStream();
            //用一个读输出流类去读
            //用缓冲器读行
            BufferedReader br=new BufferedReader( new InputStreamReader(fis,"GB2312"));
            String line=null;
            //直到读完为止
            int i = 0;
            while((line=br.readLine())!=null)
            {
             if(line.contains("package:")){  //解析符合自己需要的內容，获取之后，直接返回。

              resultstr = line;
                  break;
             }
//                resultstr=line;
                i++;
            }
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        return resultstr;
}

     public static void main(String[] args) {
         String url="www.taobao.com";
         String response=null;
         response=getSingle(url);

         System.out.println(response);
     }