Build MyBatis operation database

 

1. Download the MyBatis compressed package https://github.com/mybatis/mybatis-3/releases and select the appropriate version of MyBatis

　　

　　Unzip it to the specified directory, as follows:

　　

2. Create the form student

　　

　　Create entity class

　　

　　Create an interface

　　

3. Create the mapping file studentMapper.xml under the Dao package, and create the configuration file MyBatis.xml under the src folder

　　

　　Open studentMapper.xml, find the mybatis-3.3.0.pdf file in the downloaded MyBatis compressed package, and introduce the corresponding constraints

　　  

 

　　In the mapper mapping, directly write the sql statement namespace must have a value, the #{} braces must be consistent with the attribute name in the student entity class

　　

　　Open mybatis.xml, find the mybatis-3.3.0.pdf file in the downloaded MyBatis compressed package, introduce the corresponding constraints and

　　

　　Configure the mybatis.xml core configuration file

　　

4. Implement the studentDao interface

　　

5. Test

　　

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