interceptor

I am trying to create an Audit table that will ends looking something like that : entity,id,property,oldValue,newValue,user,timestamp using hibernate EmptyInterceptor I expect that this table will have a lot of IO's . It seems that previouseState at onFlushDirty method is not working as I expected . how can I get the old value without fetching it from the db as shown here ? I was trying to follow this post public class AuditLogInterceptor extends EmptyInterceptor { private Set inserts = new HashSet(); private Set updates = new HashSet(); private Set deletes = new HashSet(); private Map oldies

In a Spring-mvc interceptor I want to access to the handler controller method public class CustomInterceptor implements HandlerInterceptor { public boolean preHandle( HttpServletRequest request,HttpServletResponse response, Object handler) { log.info(handler.getClass().getName()); //access to the controller class //I want to have the controller method ... return true; } ... } I have found : how-to-get-controller-method-name-in-spring-interceptor-prehandle-method But it only work around. I want the method name to access to the annotation. You can cast the Object handler to HandlerMethod .

I was working with the Http clase from Angular but I decide to make the migration and work with the new HttpClient , and I was trying to create a solution with Interceptors to manage the cases when I need to refresh the token and when I need to modify the header to put the Authorization Token. First I found these post and so many others : https://medium.com/@amcdnl/the-new-http-client-in-angular-4-3-754bd3ff83a8 https://medium.com/@ryanchenkie_40935/angular-authentication-using-the-http-client-and-http-interceptors-2f9d1540eb8 ... but those solutions are perfect if you just want to handle the

今天来总结一下Struts2的知识点，学习编程我的思路一般是这样的: 　　　　① why ?为什么要学这个技术（有什么优秀的地方，可以解决哪些问题？）。 　　　　②what ? 这个技术是什么玩意？有什么牛逼的地方值得我们学习，这个技术的核心是什么。 　　　　③How ？ 怎么学？基本技术都是自己自学的，我的学习思路就是，看视频，拿例子来学习知识，在敲代码的过程中理解问题。在此期间如果遇到不懂得或者是感觉很模糊的地方，及时的上网找相应的博客进行理解。基本上就是在敲代码中学习技术。并且对技术要及时的进行总结，但是我不推荐一个知识点总结一次，这样根本没有那么多的时间，最好的是看完之后，从全局出发，对整个知识进行积累和总结，在总结的过程中，多看一下其他人的博客，集思广益，收获会很大。 　　　　④Do ！ 做！做是什么？是理论到实践的必经之路，是你成为大牛的必经之路，找个项目，认真的做完，对一些常用的技巧和方法进行归纳整理，发布到自己的博客上，在做项目的时候，有很多的途径，我最喜欢 的是看视频了，只要你前面没偷懒，认真的学习了，在这个时候你就会发现都是so easy的事情。在做项目的时候，要注意的是，遇到不会的，或者是有新的理解一定要去探索，这样会知道的越来越多，同时为了防止遗忘，及时的对博客进行更新，或许你遇到的问题也可能是别人遇到的，这样你的人气值就上来了！ 　　比如对Struts2

I want to add spring mvc interceptor as part of Java config. I already have a xml based config for this but I am trying to move to a Java config. For interceptors, I know that it can be done like this from the spring documentation- @EnableWebMvc @Configuration public class WebConfig extends WebMvcConfigurerAdapter { @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new LocaleInterceptor()); } } But my interceptor is using a spring bean autowired into it like follows- public class LocaleInterceptor extends HandlerInterceptorAdaptor { @Autowired

I have several controllers that return the same generic Response object with @ResponseBody annotation, like this: @RequestMapping(value = "/status", method = RequestMethod.GET) @Transactional(readOnly = true) public @ResponseBody Response<StatusVM> status() I need to perform an operation on every controller, after the Response is returned. This operation will enrich the Response object with new data. I don't want to duplicate code, so I need a single point of intervention. I thought I could do this with Interceptors, however, according to the docs http://docs.spring.io/spring/docs/current

Tho there are many adhoc libraries supporting upload/download progress in angular2, I do not know how to do use native angular2 http api to show progress while doing upload/download. The reason why I want to use native http api is because I want to utilise http interceptors(http API wrappers) around native http api that validate, cache & enrich the actual http request being sent such as this & this Besides angular's http api is much more robust than any adhoc APIs There is this nice article about how to do upload/download using angular's http api But the article mentions that there is no

I was asked to implement castle dynamic proxy in my asp.net web application and i was going through couple of articles which i got from Castle Project and Code Project about castle dynamic proxy in asp.net web application.... Both articles delt with creating interceptors but i can't get the idea why interceptors are used with classes.... Why should i intercept my class which is behaving properly? Aaronaught Let's say that your class needs to do 3 things for a certain operation: Perform a security check; Log the method call; Cache the result. Let's further assume that your class doesn't know