Mybatis stored procedure, mybatis paging, mybatis one to many addition, deletion, modification and query

1、 The entity classes used are as follows:

Student. java

Group. Java

2、 Table structure corresponding to entity

Student table:

g_ Group table:

sequence:

3、 The mapping files of student and group are as follows. You can find them in the mapping file, including the addition, deletion, modification and query of mybatis, mybatis calling stored procedures, mybatis paging and mybatis one-to-one and many to many processing

XML files are marked with comments. When looking at them, they are combined with the following specific implementation, although it is a little messy

student. xml

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