反射的简单示例

package test.reflect;
import java.lang.reflect.*;
/**
 * //具体应用 return (Example) this.getHibernateTemplate().get(Example.class, id);
 * 反射就是在框架中会用到的更多~~
 */
public class ReflectTest { public static void main(String[] args) {
  Class inspect;
  try {
   Integer k1 = 1;
   // k1是对象
   Class c1 = k1.getClass();
   System.out.println(c1);
   // 类名
   Class c2 = Integer.class;
   System.out.println(c2);

   // 类中的明细
   inspect = Class.forName("java.lang.Long");   Method[] methods = inspect.getDeclaredMethods();
   for (int i = 0; i < methods.length; i++) {
    Method method = methods[i];
    // 返回类型
    Class returnVal = method.getReturnType();
    // 得到方法是 public private 类型
    int mods = returnVal.getModifiers();
    String modVal = Modifier.toString(mods);
    // 参数
    Class[] params = method.getParameterTypes();    System.out.println("Method:" + method.getName());
    System.out.println("modifiers:" + modVal);
    System.out.println("return type :" + returnVal);
    for (int j = 0; j < params.length; j++) {
     System.out.println("params:" + params[j].toString());
    }
    System.out
      .println("-------------------------------------------");
   }  } catch (ClassNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }}