Getbean method for simulating spring containers (MAVEN engineering)

The Getbean method of Spring container is implemented by reflection mechanism , and the following test program simulates the implementation principle of Getbean . .

Step one :p om.xml file configuration parse XML file Dom4j.jar

Step two : Configure the Bean label in the XML file

Step three : create the test class parsespringxmltest, set the member properties , because the bean The Scope property is not set in the label , so a Singleton is created by default using singleton . here to create a Map collection to save the created object .

Step four : Create a constructor , Initialize member properties

Step five : simulate the implementation of the Getbean method

Step six : test the program

Step Seven : console output ( end scattered flowers ... )

Getbean method for simulating spring containers (MAVEN engineering)