mybatisplus中拼接or条件

可以使用MybatisPlus提供的Wrapper类和Lambda表达式来实现拼接OR条件，示例代码如下：

QueryWrapper<Entity> wrapper = new QueryWrapper<>();
wrapper.lambda().eq(Entity::getCode, "code")
    .or()
    .eq(Entity::getName, "name");
List<Entity> list = entityMapper.selectList(wrapper);

以上代码会查询code等于"code"或name等于"name"的数据。

相关问题

mybatisplus or拼接

MyBatis-Plus (also known as MyBatis++) is an enhanced wrapper library for MyBatis, which is a popular Java persistence framework. It provides additional features and simplifies the development process.

To perform OR conditions in MyBatis-Plus, you can use the `or` method provided by the QueryWrapper class. Here's an example:

QueryWrapper<User> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("age", 25)
    .or()
    .eq("age", 30);
List<User> userList = userMapper.selectList(queryWrapper);

In this example, we create a `QueryWrapper` object and call the `eq` method to specify the conditions. The `or` method is used to perform an OR operation between the conditions. Finally, we execute the query using the `selectList` method.

This will generate a SQL query like: `SELECT * FROM user WHERE age = 25 OR age = 30;`

You can chain multiple `or` methods to perform more complex OR conditions. Additionally, MyBatis-Plus provides other methods like `or` and `orNew` to handle more advanced scenarios.

mybatisplus拼接or

您可以使用MyBatis Plus的`QueryWrapper`类来拼接OR条件。以下是一个示例：

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;

// 创建QueryWrapper对象
QueryWrapper<Entity> queryWrapper = new QueryWrapper<>();

// 使用or方法拼接OR条件
queryWrapper.or(i -> i.eq("field1", value1)
                      .or()
                      .eq("field2", value2));

// 执行查询
List<Entity> entityList = entityMapper.selectList(queryWrapper);

在上面的示例中，我们使用`or`方法来创建一个逻辑块，并在块内使用`eq`方法来添加OR条件。您可以根据需要在逻辑块内添加更多的条件。

注意：上述示例中的`Entity`和`entityMapper`需要根据您的实际情况进行替换。