interceptor

Can I access the entity in IDbCommandInterceptor in Entity Framework

烈酒焚心 提交于 2019-12-04 10:48:52
When implementing IDbCommandInterceptor, I can get access to the SQL command that has been created for the command/query. Is it also possible to get access to the actual entity object that is being persisted/retrieved whilst in the implemented methods? Here is some fantasy code to demonstrate what I would like to do: public class WidgetInterceptor : IDbCommandInterceptor { public void NonQueryExecuting(System.Data.Common.DbCommand command, DbCommandInterceptionContext<int> interceptionContext) { var widget = interceptionContext.Entity as Widget; if(widget != null) { //Perform tasks on widget

How do you 'intercept' all HTTP requests in an EmberJs app?

淺唱寂寞╮ 提交于 2019-12-04 09:55:19
I would like to be able to capture all HTTP requests and responses, and modify them, before they get to the rest of an EmberJs app. I would like to do this globally - across the entire app. I have not been able to find this digging through the API . How can this be done? (Modification is to perform some conditional logic based in certain headers, or to add or modify certain headers). In AngularJS, you can accomplish this using something like this: App.factory('AppHttpInterceptor', function($q) { return { request: function(req) { //modify request return req; }, response: function(res) { //

MVC interceptor vs Spring security filter vs something else…?

强颜欢笑 提交于 2019-12-04 08:13:39
问题 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,

微服务中如何使用RestTemplate优雅调用API(拦截器、异常处理、消息转换)

淺唱寂寞╮ 提交于 2019-12-04 08:03:37
关注我,可以获取最新知识、经典面试题以及技术分享   在微服务中, rest 服务互相调用是很普遍的,我们该如何优雅地调用,其实在Spring框架使用 RestTemplate 类可以优雅地进行 rest 服务互相调用,它简化了与 http 服务的通信方式,统一了 RESTful 的标准,封装了 http 链接,操作使用简便,还可以自定义RestTemplate所需的模式。其中: RestTemplate 默认使用 HttpMessageConverter 实例将 HTTP 消息转换成 POJO 或者从 POJO 转换成 HTTP 消息。默认情况下会注册主 mime 类型的转换器,但也可以通过 setMessageConverters 注册自定义转换器。 RestTemplate 使用了默认的 DefaultResponseErrorHandler ,对40X Bad Request 或50X internal 异常 error 等错误信息捕捉。 RestTemplate 还可以使用拦截器 interceptor ,进行对请求链接跟踪,以及统一head的设置。 <br> 其中, RestTemplate 还定义了很多的 REST 资源交互的方法,其中的大多数都对应于 HTTP 的方法,如下: 方法 解析 delete() 在特定的URL上对资源执行HTTP DELETE操作

NHibernate Interceptor - What is it

一个人想着一个人 提交于 2019-12-04 07:58:13
What is NHibernate Interceptor, and what purpose does it serve in an application? Also, in this article , I learned that using NHibernate makes a desktop application slower at startup, so to avoid this, I need to save the configuration in a file, and later load it from the saved file. How can I do that? I didn't find any examples in that tutorial. An interceptor allows you to execute additional functionality when an entity is retrieved / deleted / updated / inserted in the DB ... Interceptors article Hibernate doc other useful info About making your app slower: I'd suggest that you only have a

通过mybatis的拦截器实现分页

爱⌒轻易说出口 提交于 2019-12-04 06:02:19
很早有这个想法,但具体的实现一直没去做,网上正好找到2篇,怕以后找不到,特地记录一下,原文地址: https://my.oschina.net/gaoguofan/blog/753406 https://my.oschina.net/dendy/blog/385575 MyBatis 分页拦截器实现 拦截器的一个作用就是我们可以拦截某些方法的调用,我们可以选择在这些被拦截的方法执行前后加上某些逻辑,也可以在执行这些被拦截的方法时执行自己的逻辑而不再执行被拦截的方法。Mybatis拦截器设计的一个初衷就是为了供用户在某些时候可以实现自己的逻辑而不必去动Mybatis固有的逻辑。打个比方,对于Executor,Mybatis中有几种实现:BatchExecutor、ReuseExecutor、SimpleExecutor和CachingExecutor。这个时候如果你觉得这几种实现对于Executor接口的query方法都不能满足你的要求,那怎么办呢?是要去改源码吗?当然不。我们可以建立一个Mybatis拦截器用于拦截Executor接口的query方法,在拦截之后实现自己的query方法逻辑,之后可以选择是否继续执行原来的query方法。 Interceptor接口 对于拦截器Mybatis为我们提供了一个Interceptor接口,通过实现该接口就可以定义我们自己的拦截器

How to change the posted values with a spring mvc interceptor

血红的双手。 提交于 2019-12-04 05:27:44
问题 Does anyone know how to change the posted values with a spring mvc interceptor ? I have seen some examples but none about this subject. I know how to get them but i don't know how to modify them. @Component public class CultureInterceptor implements HandlerInterceptor { @Override public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3) throws Exception { } @Override public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,

Axios request interceptor not working

孤者浪人 提交于 2019-12-04 05:18:41
I'm trying to make axios working with a request interceptor. However before a request is made the interceptor is not triggered. What could be going wrong here? I've red already a lot about this problem but not found a solution so far. Could use some help here! This is my code: import VueRouter from 'vue-router'; import Login from './components/Login.vue' import Home from './components/Home.vue' import axios from 'axios'; window.Vue = require('vue'); window.axios = axios.create({ baseURL: 'http://localhost:8080', timeout: 10000, params: {} // do not remove this, its added to add params later in

How to get the invoker name in EJB interceptor's lifecycle event method

谁说胖子不能爱 提交于 2019-12-04 04:54:25
I use Java EE 5. I wrote an interceptor for all EJBs with three methods for logging: public class DefaultInterceptor { public static final String PREFIX = "!!!!!!!!!Interceptor:"; @PostConstruct public void postConstruct(InvocationContext ctx) { try { System.out.println(PREFIX + " postConstruct"); } catch (Exception ex) { throw new RuntimeException(ex); } } @PreDestroy public void preDestroy(InvocationContext ctx) { try { System.out.println(PREFIX + " predestroy"); System.out.println(PREFIX + "ctx.preceed=" + ctx.proceed()); } catch (Exception ex) { throw new RuntimeException(ex); } }

Spring 3 Interceptor Order

戏子无情 提交于 2019-12-04 04:16:48
I have a Spring 3 Web App that implements two interceptors. Im using a config class annotated @Configuration. The code is as follows: @Override public void addInterceptors(InterceptorRegistry registry) { // TODO Auto-generated method stub super.addInterceptors(registry); registry.addInterceptor(homeInterceptor()).addPathPatterns("/"); registry.addInterceptor(allInterceptor()); } No matter what order I add the interceptors to the registry, the allInterceptor's preHandle function is always called before the homeInterceptor's preHandle. Does anyone know how to control the order that interceptors