1. Build environment
1) Spring environment setup
2) spring integrates springmvc framework
Purpose: The method of the service object can be successfully called in the controller
When the project starts, load the configuration file of applicationContext.xml and configure it in web.xml
Inject the service object into the controller and call the method of the service object for debugging
3) Spring integrates the mybatis framework
Build and test mybatis environment
Write the main configuration file of mybatis-cofig.xml in the web project
Purpose: Configure all the contents in the mybatis-config.xml configuration file into the applicationContext.xml configuration file, and clear the contents of the mybatis configuration file at the same time.
Note: Since we are using the proxy dao mode, the specific implementation of dao is created by mybatis using the proxy method, so the mybatis configuration file cannot be deleted at this time.
2. Create database and tables
1. users user table
Create table
Insert data
2. emp staff table
Create table