Assuming that you’ve the model and DB part already finished (as per the comments on the question), just create a servlet class and implement the doGet() method accordingly. It’s relatively simple, just retrieve the list of passengers from the DB, store it in request scope and forward to the JSP which should present it. The … Read more
You can only invoke methods with arguments in EL if you’re targeting and running a Servlet 3.0 compatible container (e.g. Tomcat 7, Glassfish 3, JBoss AS 6, etc) with a web.xml declared conform Servlet 3.0. This servlet version comes along with EL 2.2 which allows invoking arbitrary instance methods with arguments. Assuming that you’ve a … Read more
That will happen when you include server-specific libraries of a different server make/version in the /WEB-INF/lib of your web application, such as jsp-api.jar, el-api.jar, servlet-api.jar, etc. You need to remove them all. The /WEB-INF/lib should not contain any server-specific libraries. They belongs in the specific server itself (Tomcat has them in its /lib folder already). … Read more
Note: I tried combining answers to make a comprehensive list. I mentioned names where appropriate to give credit where it is due. There are many ways to solve this problem, with pros/cons associated with each: Pure JSP Solution As ScArcher2 mentioned above, a very easy and simple solution to the problem is to implement it … Read more
JSP is an old view technology and widely used in combination with JSF 1.x. Facelets (by some people overgeneralized as XHTML) is the successor of JSP and introduced as default view technology of JSF 2.x at end of 2009. When you were seeing JSPs, you were perhaps reading outdated books, tutorials or resources targeted on … Read more
I don’t know about the 302, but I tested the 301 on some browsers today, here the results: SCENARIO: user clicks link on domainX that points to domainA. domainA does a 301 redirect to domainB. IE8 referer when landing on domainB is: domainX (even when using InPrivate browsing and even when user opens link in … Read more
If you’re already on EL 3.0 (Java EE 7; WildFly, Tomcat 8, GlassFish 4, etc), then you could use the new += operator for this: <p>${not empty promoPrice ? ‘ONLY $’ += promoPrice : ‘FREE’}</p> If you’re however not on EL 3.0 yet, then use EL 2.2 (Java EE 7; JBoss AS 6/7, Tomcat 7, … Read more
Caused by: javax.servlet.ServletException: javax.servlet.jsp.JspTagException: Don’t know how to iterate over supplied “items” in <forEach> That will happen when the <c:forEach items> does not refer a valid object over which it can iterate. The object should be an Object[] (a plain array), a Collection, Map, Iterator, Enumeration or String (see also source code). Anything else can’t … Read more
I suggest you to use Struts Tags instead of plain HTML tags, and to extend ActionSupport (returning its Result constants instead of manually composing the result String, like “result”). That said, this is a tested and working example. Note: It won’t work on old versions of IE, but since you are using HTML5 in your … Read more
Issues related to: There is no Action mapped for namespace and action name associated with context path If you use URL to call an action, make sure this URL is mapped to the Struts configuration. To troubleshoot the issue with URL mapping you can use config-browser plugin. Simply add this plugin to your project dependencies … Read more