servlets

问题 I'm not able to understand why my simple configuration of DispatcherServlet to implement Spring MVC does not work. My web.xml looks like as follow: <?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>dispatcher</servlet-name> <servlet-class> org

问题 I'm completely new to Liferay. I have configured Orbeon Forms in Liferay by using the Proxy Portlet , finally I created an Orbeon form and sent the form data to a demo portlet (custom portlet). In the portlet I have created a servlet. If user save the orbeon form data then my servlet getting called and I'm able to get the form data. Now I need to get the current user name or userid in the servlet. In form builder I have send the orbeon form data to my servlet. properties-local.xml <property

问题 I have an app with a custom URL scheme set up, and I added the URL to the LSApplicationQueriesSchemes array in the Info.plist. If I go straight into Safari on the device or simulator and hit myapp:// then the app will open up. However, I have an externally hosted website with a servlet that calls response.redirect("myapp://") and when this is called, the app does not open. The servlet redirect works in iOS 9 and below. What changed in iOS 10 so that this call no longer works? It's odd that if

问题 I really need to use response.sendRedirect() method because my JSP(search.jsp) page is actually calling for a servlet <jsp:include page="/searchServlet" /> and in my searchServlet if I use the forward method (to the same page) I get a weird error (maybe because I'm calling it and forwarding all the time, I din't find the reason yet..) however I need to read an attribute in my JSP(search.jsp) page with a simple message like "Please provide valid data" However since I'm using my response to

问题 I am trying to make a maven login application using hibernate to persist the data onto a mysql database. I am deploying the application on a glassfish server. I am able to start the server and fill in data on the html form but once I submit the form, I get the following error logs: 2016-11-21T22:40:05.371-0500|Info: HHH000412: Hibernate Core {5.2.4.Final} 2016-11-21T22:40:05.379-0500|Info: HHH000206: hibernate.properties not found 2016-11-21T22:40:05.385-0500|Info: HHH000021: Bytecode

问题 In reference to my older unanswered question, I have a further error / problem that is partially related to it. generic linking, variables and paths in jsp When I include my header.jsp like this: <%@include file="/WEB-INF/view/jsp/common/header.jsp" %> It works fine. But does not if I do it like this: <%@include file="${pageContext.request.contextPath}/view/jsp/common/header.jsp" %> Error: HTTP Status 500 - /WEB-INF/view/jsp/common/login/login.jsp (line: 8, column: 1) File "${pageContext

问题 I am using approach from the "Accessing scoped proxy beans within Threads of" answer. However I am seeing rare deadlocks involving RequestAttributes object. The main reason of the deadlock is between the synchronized (this.sessionAttributesToUpdate) statement in the object and servlet session hash-map. Normally the instances of the object are created for each request, so they don't clash, but if I pass the object to another thread to use the session beans, the same object is used and it

问题 I am setting up a web service which will be reused for several different apps within the same tomcat. What I am looking to do is have a setup where I can reuse the servlet context XML but just have it pick up the correct properties file based on the servlet being setup. I have created a subclass of PropertyPlaceholderConfigurer which will allow me to request the properties file separately from the XML but I cannot figure out how to get the servlet name from within this class. Is this even

问题 I want to create a simple web page using servlet. This was one of my exam questions, I did my practical at exam, but it was not working as they expect, However now I want clarify my question. My question is there is a webpage and it divide into 2 parts. At the bottom part it should display a text box and a text area to enter comments. And also there is a submit button. When submit button clicks that entered comment should display at the top of the same page. To do this I have created a

问题 I am writing a servlet jsp under Glassfish to download a file from a website, do some processing and display the result in webpage. When I deploy the servlet, it get this error : java.io.IOException: Server returned HTTP response code: 503 for URL: www.websitename.com error. I check the status code 503 out and it turns out to be a server overload indicator. However, if I write a standalone program, accessing the same website, it works fine. What can be the reason of the IOException? 回答1: I