黑马程序员——通过反射Proxy类的静态函数getProxyClass()来获取动态生成类的构造函数和方法

来源：互联网发布：linux 误删用户恢复编辑：程序博客网时间：2024/05/01 22:46

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代码演示：

<pre name="code" class="java">public class ProxyTest {public static void main(String[] args) {//获取类Proxy 字节码Class clszz = Proxy.getProxyClass(Collection.class.getClassLoader(), Collection.class);System.out.println(clszz.getName());Constructor[] constructors = clszz.getConstructors();//打印构造函数for(Constructor constructor : constructors){String name = constructor.getName();StringBuilder sb = new StringBuilder(name);sb.append('(');Class[] classParams = constructor.getParameterTypes();for(Class classParam : classParams){sb.append(classParam.getName()).append(',');}if(classParams.length != 0){sb.deleteCharAt(sb.length() - 1);}sb.append(')');System.out.println(sb);}//获取类类的方法Method[] methods = clszz.getMethods();for(Method method : methods){String name = method.getName();StringBuilder sb = new StringBuilder(name);sb.append('(');Class[] classParams = method.getParameterTypes();for(Class classParam : classParams){sb.append(classParam.getName()).append(',');}if(classParams.length != 0){sb.deleteCharAt(sb.length() - 1);}sb.append(')');System.out.println(sb);}}}

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