springboot

[ywcxx1994]

请问，springboot中，怎么添加两个createDateColumn，updateDateColumn属性

[xjs1919]

@Configuration public class MybatisConfig { @Bean public Interceptor getInterceptor(){ AutoDateInterceptor interceptor = new AutoDateInterceptor(); Properties properties = new Properties(); properties.put("createDateColumn", "create_date"); properties.put("updateDateColumn", "update_date"); interceptor.setProperties(properties); return interceptor; } }

[ywcxx1994]

我昨天自己测试，使用这种方式拦截器中的properties会 NPE ，然后我把properties对象当方法参数传进来，不自己new，结果也NPE，我怀疑每次请求拦截器都是不同的对象，因为容器默认的bean是单例嘛，然后我把拦截器中的properties声明为static类型，结果好了。作者能回答一下为什么NPE么？

xjs1919 notifications@github.com 于2019年4月24日周三 上午8:29写道：

@Configuration public class MybatisConfig { @Bean public Interceptor getInterceptor(){ AutoDateInterceptor interceptor = new AutoDateInterceptor(); Properties properties = new Properties(); properties.put("createDateColumn", "create_date"); properties.put("updateDateColumn", "update_date"); interceptor.setProperties(properties); return interceptor; } }

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[xjs1919]

不清楚，自己debug下吧