mybatis-plusand和or

MyBatis-Plus is an open-source persistence framework for Java applications. It is an extension to the MyBatis framework, providing additional features and functionalities to simplify database operations.

When it comes to combining conditions in MyBatis-Plus, you can use both "and" and "or" operators to construct complex queries. Here's how you can use them:

1. Using "and" operator:
You can use the `and` method to add multiple conditions together, which means all conditions must be true for a record to be included in the result. Here's an example:

   QueryWrapper<Entity> queryWrapper = new QueryWrapper<>();
   queryWrapper.eq("column1", value1)
               .and(wrapper -> wrapper.eq("column2", value2)
                                    .ne("column3", value3));

2. Using "or" operator:
You can use the `or` method to add multiple conditions together, which means any of the conditions can be true for a record to be included in the result. Here's an example:

   QueryWrapper<Entity> queryWrapper = new QueryWrapper<>();
   queryWrapper.eq("column1", value1)
               .or(wrapper -> wrapper.eq("column2", value2)
                                   .ne("column3", value3));

With these operators, you can build complex queries by combining multiple conditions in MyBatis-Plus.