java servlet中执行linux命令

 

public HttpServletResponse execCmd(String cmd, HttpServletRequest request, HttpServletResponse response) throws IOException {
         
         
          StringBuffer output = new StringBuffer();
          Process p = null;
          try {
               p = Runtime.getRuntime().exec(cmd);
               p.waitFor();
              
               BufferedReader  reader =new BufferedReader(new InputStreamReader(p.getInputStream()));
              
               String line = "";
              
               while( (line = reader.readLine()) != null) {

                    output.append(line + "\n");
               }
              
              
          } catch (Exception e) {
               e.printStackTrace();
          }
         
         
          PrintWriter pw = response.getWriter();
          pw.write(output.toString());
         
          return response;
         
     }

 

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