类的反射机制

 public void exc( ){
   try {
   Properties p=new Properties();
//   p.load(MainTest.class.getResourceAsStream("/config.properties"));
   
//   String strMethod = p.getProperty("method");
//   Method objMethod =objClass.getMethod(strMethod,new Class[]{});
//   Object object= objClass.newInstance();
//   Object objRet = objMethod.invoke(object,new Object[]{}); 
//   System.out.println(objRet);
   Class objClass=Class.forName("com.test.Sdff");
   Object object = objClass.newInstance();
    String strMethod = p.getProperty("method");
    ArrayList<String> lstMethod= new ArrayList<String> ();
    lstMethod.add("test1");
    lstMethod.add("test2");
    lstMethod.add("test3");
    lstMethod.add("test4");
    lstMethod.add("test5");
    lstMethod.add("test6");
    boolean isExc = false;
    for (int i = 0; i < lstMethod.size(); i++) {
      String strCurrMethod = lstMethod.get(i);
     if(strMethod != null && strCurrMethod.equals(strMethod)){
      isExc = true;
     }
     if(isExc){
      Method objMethod =objClass.getMethod(strCurrMethod,new Class[]{});
       objMethod.invoke(object,new Object[]{});
     }
   }
   } catch (Exception e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
   
   
   //Properties属性的修改
//   Properties prop = new Properties();
//     try {
//      InputStream fis = this.getClass().getClassLoader()
//      .getResourceAsStream("FileParams.properties");
//      prop.load(fis);
//      OutputStream fos = new FileOutputStream("FileParams.properties");
//      prop.setProperty("content", "修改了");
//      prop.store(fos, "这里面到底该填什么？");
//
//      System.out.println(prop.getProperty("content"));
//     
//     } catch (Exception e) {
//      // TODO Auto-generated catch block
//      e.printStackTrace();
//     }
 }