A slightly different question that I looked for here: “How do you pass an object to a tag file?” Answer: Use the “type” attribute of the attribute directive: <%@ attribute name=”field” required=”true” type=”com.mycompany.MyClass” %> The type defaults to java.lang.String, so without it you’ll get an error if you try to access object fields saying that … Read more
I know it’s an old question, but the tag library http://www.springframework.org/tags is provided by spring-webmvc package. With Maven it can be added to the project with the following lines to be added in the pom.xml <properties> <spring.version>3.0.6.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> Without Maven, just add that jar to your classpath. In any … Read more
It is an EL expression basically it outputs the value that result from evaluating the expression, to put it simply, it allows you to access the values of the properties of your Java beans using “dots” instead of using getters and setters, using it you can access instances of beans that can be in session, … Read more
css href link is incorrect. Use relative path instead: <link href=”https://stackoverflow.com/questions/css/loginstyle.css” rel=”stylesheet” type=”text/css”>
You could do something like this: <form method=”post” action=”target.html”> <input type=”hidden” name=”name” value=”value” /> <a onclick=”this.parentNode.submit();”>click here</a> </form>
Though CDATA works fine, using document.createElement is also a great choice.. Especially if you intend to append some value to a URL, say for cache busting.. <script type=”text/javascript”> var JSLink = “/Folder/sub_folder/version.js?version=” + Math.random(); var JSElement = document.createElement(‘script’); JSElement.src = JSLink; JSElement.onload = OnceLoaded; document.getElementsByTagName(‘head’)[0].appendChild(JSElement); function OnceLoaded() { // Once loaded.. load other JS or … Read more
Unfortunately, you will certainly have to change your method to: private <T> T evaluate(Class<T> clazz, String expression) and then pass clazz as your second parameter. Not as short as you expected.
Since Spring 3.0.3 there is EmbeddedValueResolverAware which will work same way as mentioned by another post which uses appContext.getBeanFactory().resolveEmbeddedValue(“${prop}”) call. To solve the problem: Make your class to implement EmbeddedValueResolverAware interface and you will get resolver injected for you Then where you will be able to retrieve properties as demonstrated in a code snippet: String … Read more
Make use of JSTL c:catch. <c:catch var=”exception”>${myObject.myAttribute}</c:catch> <c:if test=”${not empty exception}”>Attribute not available.</c:if>
There is a better way: <c:set var=”title” value=”${(empty title) ? ‘Default title’ : title}” /> No need for custom tag in Java nor tld. Just plain JSP EL and conditional operator. In my opinion it is shorter and cleaner than old: <c:if test=”${empty title}” > <c:set var=”title” value=”Default title” /> </c:if>