How to implement pessimistic locking in MyBatis?

11 months ago

William Carter

1 minute

One way to implement pessimistic locking in MyBatis is to use database locking statements. A common approach is to add the “FOR UPDATE” statement in the SQL query to lock the data. For example:

SELECT * FROM table_name WHERE id = #{id} FOR UPDATE;

In MyBatis, you can use methods of the Mapper interface to execute SQL statements with FOR UPDATE, for example:

@Select("SELECT * FROM table_name WHERE id = #{id} FOR UPDATE")
public Object selectForUpdate(int id);

Additionally, you can also use MyBatis plugins to achieve pessimistic locking by intercepting query statements and adding FOR UPDATE to lock the data. It is important to note that when using pessimistic locking, make sure that the transaction has been initiated, otherwise the locking will not be effective.