interceptor

I'm using Spring-MVC with Spring Security for my web application. It includes user registration pages and private user panel. I have it set up currently with the following URL patterns: whatever/myapp/login user log in whatever/myapp/register?step=1 start registration whatever/myapp/account/** private area views (pages) whatever/myapp/pending view shown while post-registration processes complete whatever/myapp/blocked account blocked view whatever/myapp/register/retry if registration failed, allow retry Essentially, these URLs below should require user authentication, i.e. require log-in:

I'm using retrofit. To catch response i'm using Interceptor: OkHttpClient okHttpClient = new OkHttpClient(); okHttpClient.interceptors().add(myinterceptor); here is code of interceptor: new Interceptor() { @Override public Response intercept(Chain chain) throws IOException { Request request = chain.request(); Response response = chain.proceed(request); if (path.equals("/user")){ String stringJson = response.body().string(); JSONObject jsonObject = new JSONObject(stringJson); jsonObject.put("key",1); //here I need to set this new json to response and then return this response How to change body

I need to retry request inside of OkHttp Interceptor . For example there is incoming request which needs Authorization token. If Authorization token is expired, server returns response with 403 code. In this case I am retrieving a new token and trying to make call again by using the same chain object. But OkHttp throws an exception, which states that you cannot make two requests with the same chain object. java.lang.IllegalStateException: network interceptor org.app.api.modules.ApplicationApiHeaders@559da2 must call proceed() exactly once I wonder if there is a clean solution to this problem

使用Interceptor拦截器 Filter 是在 Servlet 规范中定义的，是 Servlet 容器支持的。而拦截器是在 Spring容器内的，是Spring框架支持的。Filter在只在 Servlet 前后起作用。Filters 通常将 请求和响应（request/response） 当做黑盒子，Filter通常不考虑servlet 的实现。拦截器能够深入到方法前后、异常抛出前后等，因此拦截器的使用具有更大的弹性。允许用户介入请求的生命周期，在请求过程中获取信息，Interceptor 通常和请求更加耦合。在Spring构架的程序中，要优先使用拦截器。几乎所有 Filter 能够做的事情，interceptor 都能够轻松的实现。 下面我们实现之前用Filter实现的验证登陆程序 实现HandlerInterceptor接口，在preHandle验证登陆 import org.slf4j.LoggerFactory import org.springframework.http.MediaType import org.springframework.web.servlet.HandlerInterceptor import org.springframework.web.servlet.ModelAndView import java.lang.Exception

What's the difference, really, between filters and interceptors? I realize that interceptors fire before and after an action, recursively, and filters can be configured to fire on actions and on certain url patterns. But how do you know when to use each one? In the book I'm reading on Struts 2, it seems that interceptors are being pushed and I even followed a tutorial to write an Authentication Interceptor to make sure a user is logged in. However, if the user tries to access a URL that doesn't have an action associated with it, the interceptor doesn't catch it, which means I'd have to

I'm trying to clear my concept about Interceptors in Java EE. I have read Java EE specification but I'm little confused about it. Please provide me some useful link or tutorial which could clear my concept. How, When, Why do we use interceptors? Interceptors are used to implement cross-cutting concerns, such as logging, auditing, and security, from the business logic. In Java EE 5, Interceptors were allowed only on EJBs. In Java EE 6, Interceptors became a new specification of its own, abstracted at a higher level so that it can be more generically applied to a broader set of specifications in

I've made an interceptor in my application that detects session loss (server sends an HTTP 419). In this case, I need to request a new session from the server, and then I would like to send the original request again automatically. Maybe I could save the request in a request interceptor, and then send it again, but there might be a simpler solution. Note that I have to use a specific webservice to create the session. angular.module('myapp', [ 'ngResource' ]).factory( 'MyInterceptor', function ($q, $rootScope) { return function (promise) { return promise.then(function (response) { // do

I am trying to use interceptors in Spring. I want to implement an interceptor on some methods to handle specific logic when these methods are called. I also want to be apart from using web framework, as am tending to use Spring as back end, without any headers. After searching, I think spring approach is called Aspects, could you please mention best practice to do this? In Spring there are two different constructs that get called "interceptors". First, there are Handler Interceptors , which are part of the Spring MVC framework, and allow you to add interceptor logic to web requests. I suspect

In my application I do the following Read from database: I Fetch items from database (In parallel, with context per each Task). Write to database: I Create a new Context and for each fetched item, I attach it to that new context I defined an Interceptor because I don't want that the EF will save the changes (I need to do it by myself, later, because of performance) The problem - after I call SaveChanges() method, the Interceptor being invoked and I have the SQL statement and it's OK. BUT, after the code is executed in the Interceptor side, there is an exception on the Context.SaveChanges()