el

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duplicate <param>s in seam's pages.xml

Using seam, in pages.xml I can catch the value of a query string parameter and put it in a backing bean like so:[详细]

2023-04-07 03:14 分类：问答
Why does this JSP scriptlet fail with a NullPointerException?

I can print out开发者_高级运维 pageModel.foo using EL: ${pageModel.foo} But this scriptlet fails at the line where I check the length() of foo:[详细]

2023-04-06 13:52 分类：问答
Error in creating Seam Custom EL function

I tried to create a custom el function in seam 2.2 by following http://seamframework.org/Documentation/CreatingCustomELFunctions[详细]

2023-04-05 19:47 分类：问答
JSF2: Passing a method in an EL expression

is it possible to pass a method in an EL expression? I have one bean and two views. The second view has a button but which method the button triggers should be defined by the first view. So I have to[详细]

2023-04-05 13:40 分类：问答
Check if Cookie exists with JSP EL

I am trying to check if a cookie exists on a JSP page using the Expression Language. I have a cookie called persist which is set to either empty string or \"checked\".[详细]

2023-04-04 15:13 分类：问答
JSP EL ${stuff} syntax not working

I have two开发者_StackOverflow problems. The first one is that I\'m using JSP and that I can\'t solve. The second one is that I\'m getting an odd behavior.[详细]

2023-04-04 04:45 分类：问答
JSF 2.1 ValueExpression in action-attribute

Section 3.1.4 of the JSF 2.1 Specification says that all attributes of standard components are value expression enabled.[详细]

2023-04-03 14:53 分类：问答
Access message source from EL

Suppose I have the following message source file: title=foo somefield=bar ... I always access it in the following way开发者_如何学JAVA:[详细]

2023-04-03 06:58 分类：问答
How to test against enum values in JSTL EL test?

I have the following block in my JSP, which converts from ENUM values {CREATE, CREATE_FROM_CAMPAIGN, OPEN} into nice, readable status texts.[详细]

2023-04-01 14:50 分类：问答
Getting an EL in a Javascript file, loaded by @ResourceDependency

I\'m using @ResourceDependency annotation in a JSF component to add Javascript and CSS files into my JSF page.[详细]

2023-03-31 20:04 分类：问答