The tag is used for declaring scoped variables in JSP. CST The JSTL core library includes a second tag for managing scoped variables, . scope: false: false: java.lang.String: Scope for var. The tag directive is similar to the JSP page’s page directive but applies to tag files. It repeats the nested body content for fixed number of times or over collection. c:forEach: It is the basic iteration tag. As a result, if you need to access a JSTL variable value in a scriptletS, you can do so by calling the getAttribute() method on the appropriately scoped object (usually pageContext and request).. We can see examples of this below. The JSTL contains several tags that can remove scriplet code from a JSP page by providing some ready to use, already implemented common functionalities. Scope that has to admire the scope of variable that will store information. Target object whose property will be set. ), C9 © 2014, Mike Murach & Associates, Inc. Slide 2 Objectives Applied 1. variable can be set by using the tag within the body of another tag as in the following code snnipate: My book: java 8 In the preceding code snippet, the value for the bookname variable is set in the body of the tag. JSP Standard Tag Library(JSTL) is a standard library of readymade tags. In the program to elaborate this tag we use to set the salary of an employee in that some attributes like var variable that will store the info about output. As its name suggests, the action is used to delete a scoped variable, and takes two attributes. c:choose, c:when, c:otherwise: It is the simple conditional tag that includes its body content if the evaluated condition is true. We can also declare the name of the variable and its value in the var and value attributes respectively. Table 8-2 lists the tag directive attributes.. Table 8-2 tag Directive Attributes c:set 标签用于定义和存储变量，它可以定义变量是在 JSP 会话范围内还是 JavaBean 的属性中，可以使用该标签在页面中定义变量，而不用在 JSP 页面中嵌入打乱 HTML 排版的 Java 代码。：se JSTLS W variables are actually attributes, and by default are scoped at the page context level. c:forTokens: It iterates over tokens which is separated by the supplied delimeters. Must evaluate to a JavaBeans object with setter property property, or to a java.util.Map object. An … To remove the variable from given scope To catch the exception and wrap it into an object. As we mentioned earlier that the tag is used to set the property and its uses to evaluate the expression. property: false: true: java.lang.String: Name of the property to be set in the target object. Some of the elements in the tag directive appear in the tag element of a TLD (see Declaring Tag Handlers). To write something in JSP page, we can use EL also with this tag Same as or include directive redirect request to another resource To set the variable value in given scope. Declaring Tags. c:param Murach's Java Servlets/JSP (3rd Ed.