"Spring" 2, <load-on-startup>0</load-on-startup> configuration

• Load-on-startup whether the token container is instantiated at startup and invokes the priority of its init () method.

• Its value indicates the order in which the servlet should be loaded

• A value of 0 or greater than 0 o'clock indicates that the container loads and initializes the servlet when the app is started;

• If the value is less than 0 or unspecified, the initialization function is called only on the first requested container in the servlet

• The smaller the positive value, the higher the servlet's priority, and the more loaded it will be when the app starts.

• When the values are the same, the containers are loaded in their own order of choice.

"Spring" 2, <load-on-startup>0</load-on-startup> configuration