dwr

框架简介：DWR（Direct Web Remoting） 是一个用于改善web页面与Java类交互的远程服务器端Ajax开源框架，可以帮助开发人员开发包含AJAX技术的网站。它可以允许在浏览器里的代码使用运行在WEB服务器上的JAVA函数，就像它就在浏览器里一样。 本Demo实现的基本功能： 点击jsp界面的按钮，通过DWR调用到服务器端的java代码，在控制台打印出jsp输入框中的值 Demo构建流程： 1.新建Web工程 2.导入jar包：commons-logging-x.x.x.jar和dwr3.0.jar 3.在web.xml中加入DWR使用能力： <servlet> <servlet-name> dwr-invoker </servlet-name> <servlet-class> uk.ltd.getahead.dwr.DWRServlet</servlet-class > <init-param> <param-name> debug</param-name > <param-value> true</param-value > </init-param> <init-param> <param-name> crossDomainSessionSecurity</param-name > <param-value> false</param-value > <

There is a demo by IBM that shows how easy Reverse AJAX can be used with DWR 2. On the other hand, Scala/LIFT comes with built-in Reverse AJAX capability. Question: Any experience if this works fine with Spring MVC? Question: If you'd start from scratch, what are the pros and cons for preferring Scala/LIFT over DWR/Spring MVC Question: In Scala/LIFT, is the security handling as sophisticated as in Spring Security? Lift's Comet Architecture which was selected by Novell to power their Pulse product after they evaluated a number of different technologies. Lift's Comet implementation uses a single

I would like to request for an item class of collection (kind of specific reflection). But regarding to type erasure it seems not possible and also regarding to some topics I've read here on stack. There are some workarounds ( here ), but I'm curious if somebody know how is it done for example by DWR: http://directwebremoting.org/dwr/documentation/server/configuration/dwrxml/signatures.html or in case that there is some better workaround it would be great. Let's say we have something like: public String foo(List<String> possibleFoos) { and all I need to is find out that parameter possibleFoos

While using DWR in a intranet, will disadvantages like perfomance or security issues occur? Direct web remoting is a tool which uses Ajax request to contact a server from a js file. One thing I would watch out for is that your server will most likely get hit by more HTTP requests than if you have the (normal) full page HTTP delivery. Let me explain. When your web page is AJAX-enabled, your clients will end up creating more HTTP requests for (say) form filling, page-fragment regeneration etc. I've seen scenarios where developers have gone AJAX-crazy, and made the web page a largely dynamic

I'm new to Java Enterprise and to Spring but I have a strong grasp of standard Java. I am looking through an existing web application project. The project uses Tomcat/Spring/Hibernate which I understand is fairly common. It also uses DWR for remote method invocations. I'm finding it somewhat difficult to separate responsibilities: what Tomcat is responsible for, what Spring is responsible for, how a request gets from one to the other, and how the major pieces of Spring fit together. I've read a great deal of documentation on Spring, particularly about beans and bean factory and am still in

由于本人在实际项目开发中有涉及到流程跑批，每个节点顺序点击执行后必须刷新页面才能看到状态是否变更。从客户体验上来说，这点是非常差的，于是想到dwr和websocket实现实时消息推送浏览器，前者是一个用于改善web页面与Java类交互的远程服务器端Ajax开源框架，它可以允许在浏览器里的代码使用运行在WEB服务器上的JAVA方法，就像它就在浏览器里一样，但存在一定的java代码泄露风险，而后者是一种网络双工通讯TCP协议，长连接，需要客户端发起连接。两者实现起来都是相对比较简单的，下面来简单实现下dwr！ 实现步骤如下： 1、maven引jar <dependency> <groupId>org.directwebremoting</groupId> <artifactId>dwr</artifactId> <version>3.0.2-RELEASE</version> </dependency> 2、dwr无xml配置部分 package com.paic.commcc.support.dwr; import org.directwebremoting.Container; import org.directwebremoting.create.NewCreator; import org.directwebremoting.extend.Configurator;

I'd like to add some Comet/server push capabilities to a simple web application. I'm having trouble finding up to date information on how to do this. Can anyone point me to some examples, tutorials, blogs, or anything recent that walks you through using Comet with Spring MVC ? In case it matters, I'm using Freemarker to render the views, and JQuery for the JavaScript framework. Aside: I already know all about Lift and its awesome Comet support built-in. This app is a proof of concept that I've already implemented using Lift. Now I'm building it with Spring MVC to compare and contrast. Edit: I

Using jQuery AJAX, can we call a specific JAVA method (e.g. From an Action class) The returned data from that Java method would be used to fill in some HTML code. Please let me know if this can be done easily using jQuery (like it does in DWR)..Also for multiple data points in HTML, do we need to make multple AJAX requests? hvgotcodes The simple answer is you map your ajax calls to urls, which are in turned map to methods in your java code. The Ajax -> URI mapping happens on the client side (which ever js framework you are using, and the URI -> specific handler mapping happens within the java