What are the steps to query associations in MyBatis?

The steps for association querying in MyBatis are as follows:

1. In the Mapper XML file, use the tag to define the relationship. This tag contains two attributes: property and javaType. The property specifies the name of the associated property and javaType specifies the type of the associated property.
2. Inside the tag, use the primary key and other attributes associated with the tag definition. Here, the tag is used to map the primary key attribute, while the tag is used to map other attributes.
3. In the method requiring querying, perform a join query by calling methods in the Mapper interface. Add a @ResultMap annotation on the querying method to specify the result mapping for the join query.
4. When executing a query, MyBatis will automatically perform a join query based on the defined association in the XML tags. The results of the join query will be encapsulated into corresponding Java objects according to the defined attributes in the tags.
5. Finally, by obtaining the associated attributes of the query result, detailed information of the associated objects can be acquired.

In summary, the steps for conducting an association query in MyBatis involve defining the relationship, executing the query, and retrieving detailed information about the associated objects.