request-object | 易学教程

Pass parameter from java class to jsp using ActionRequest Actionresponse

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问题 I have a function say : public void display(ActionRequest areq, ActionResponse ares) throws Exception,PortletException,IOException { String name= areq.getParameter("name"); String add= areq.getParameter("add"); String phone= areq.getParameter("phone"); } I have a jsp say disp.jsp which passes the user input to the above function display. Now I after doing some processing on the above data in display() function, I want to display the results on a jsp page say new.jsp. How should I go ahead

How to parse variables in querystring using Express?

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问题 I have a request being sent to the server: "/stuff?a=a&b=b&c=c" Using express, how do I get these values? I have tried the following... app.get( "/stuff?:a&:b&:c", function( req, res ){}); ...however it does not seem to recognize the route. Thanks (in advance) for your help. 回答1: It's not a good idea to use a query string inside a route. In Express logic you need create a route for "/stuff". The query string will be available in req.query . 回答2: You can declare your route directly with /stuff

How to parse variables in querystring using Express?

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I have a request being sent to the server: "/stuff?a=a&b=b&c=c" Using express, how do I get these values? I have tried the following... app.get( "/stuff?:a&:b&:c", function( req, res ){}); ...however it does not seem to recognize the route. Thanks (in advance) for your help. Dmitry Manannikov It's not a good idea to use a query string inside a route. In Express logic you need create a route for "/stuff". The query string will be available in req.query . You can declare your route directly with /stuff , then query parameters are accessible through req.query , which is a JSON object. Here's your

Using request.setAttribute in a JSP page

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问题 Is it possible to use request.setAttribute on a JSP page and then on HTML Submit get the same request attribute in the Servlet ? 回答1: No. Unfortunately the Request object is only available until the page finishes loading - once it's complete, you'll lose all values in it unless they've been stored somewhere. If you want to persist attributes through requests you need to either: Have a hidden input in your form, such as <input type="hidden" name="myhiddenvalue" value="<%= request.getParameter(