Dynamic agent design pattern of Java

Proxy: an operation class that specifically completes proxy requests. It is the parent class of all dynamic proxy classes. Through this class, implementation classes are dynamically generated for one or more interfaces.

The key to understanding the dynamic proxy is to understand the reflection mechanism of Java https://www.cnblogs.com/xiximayou/p/12073611.html As detailed in.

Specific example: generate corresponding implementation classes for testproxy interface through dynamic proxy.

TestProxy. java

TestProxyImpl. java

ProxyDemo. java

Test. java

Output:

Execute test1 execute test2 ------------- test1 method starts executing test1 method ends executing ------------- test2 method starts executing test2 method ends executing---------------