servlet 中实例化和初始化的区别
Difference between instantiation and initialization in servlets
我真的很困惑容器调用 servlet 时会发生什么。
有人可以帮助我了解当容器调用 servlet 时实例化和初始化是如何工作的吗？
为了加载 servlet 容器需要先 instantiate servlet class 然后在使用它之前，servlet 需要正确初始化
After the servlet object is instantiated, the container must initialize the servlet before it can handle requests from clients. Initialization is provided so that a servlet can read persistent configuration data, initialize costly resources (such as JDBC connections), and perform other one-time activities.
一般Java class需要加载到class加载器然后有时class也可以在使用前执行初始化代码
我真的很困惑容器调用 servlet 时会发生什么。
有人可以帮助我了解当容器调用 servlet 时实例化和初始化是如何工作的吗？
为了加载 servlet 容器需要先 instantiate servlet class 然后在使用它之前，servlet 需要正确初始化
After the servlet object is instantiated, the container must initialize the servlet before it can handle requests from clients. Initialization is provided so that a servlet can read persistent configuration data, initialize costly resources (such as JDBC connections), and perform other one-time activities.
一般Java class需要加载到class加载器然后有时class也可以在使用前执行初始化代码