mybatis拦截器,获取SqlSessionFactory
时间: 2023-07-04 11:23:53 浏览: 237
MyBatis 拦截器是 MyBatis 提供的一种机制,可以在 SQL 执行过程中对 SQL 语句进行拦截和处理。如果您需要在 MyBatis 执行 SQL 语句时获取 SqlSessionFactory,可以通过拦截器的方式来实现。
具体实现方式如下:
1. 定义一个拦截器类,实现 Interceptor 接口:
```java
public class MyInterceptor implements Interceptor {
private SqlSessionFactory sqlSessionFactory;
@Override
public Object intercept(Invocation invocation) throws Throwable {
// 获取 SqlSession 对象
SqlSession sqlSession = (SqlSession) invocation.getArgs()[0];
// 获取 SqlSessionFactory 对象
sqlSessionFactory = sqlSession.getConfiguration().getSqlSessionFactory();
// 其他拦截处理逻辑
Object result = invocation.proceed();
// 返回处理结果
return result;
}
@Override
public Object plugin(Object target) {
return Plugin.wrap(target, this);
}
@Override
public void setProperties(Properties properties) {
// 设置自定义属性
}
}
```
2. 在 MyBatis 配置文件中配置拦截器:
```xml
<configuration>
<plugins>
<plugin interceptor="com.example.MyInterceptor">
<!-- 设置自定义属性 -->
</plugin>
</plugins>
<!-- 其他配置 -->
</configuration>
```
通过上述方式,您可以在 MyBatis 执行 SQL 语句时获取 SqlSessionFactory 对象,并进行相应的处理。
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