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Found 177 Articles for JSP
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The setProperty action sets the properties of a Bean. The Bean must have been previously defined before this action. There are two basic ways to use the setProperty action −You can use jsp:setProperty after, but outside of a jsp:useBean element, as given below − ... In this case, the jsp:setProperty is executed regardless of whether a new bean was instantiated or an existing bean was found.A second context in which jsp:setProperty can appear is inside the body of a jsp:useBean element, as given below − ... Here, the jsp:setProperty is executed only if ... Read More
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JSP comment marks to text or statements that the JSP container should ignore. A JSP comment is useful when you want to hide or "comment out", a part of your JSP page.Following is the syntax of the JSP comments −Following example shows the JSP Comments − A Comment Test A Test of Comments The above code will generate the following result −A Test of CommentsThere ... Read More
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The useBean action is quite versatile. It first searches for an existing object utilizing the id and scope variables. If an object is not found, it then tries to create the specified object.The simplest way to load a bean is as follows −Once a bean class is loaded, you can use jsp:setProperty and jsp:getProperty actions to modify and retrieve the bean properties.Following table lists out the attributes associated with the useBean action −Sr.No.Attribute & Description1classDesignates the full package name of the bean.2typeSpecifies the type of the variable that will refer to the object.3beanNameGives the name of the bean as specified ... Read More
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A JSP expression element contains a scripting language expression that is evaluated, converted to a String, and inserted where the expression appears in the JSP file.Because the value of an expression is converted to a String, you can use an expression within a line of text, whether or not it is tagged with HTML, in a JSP file.The expression element can contain any expression that is valid according to the Java Language Specification but you cannot use a semicolon to end an expression.Following is the syntax of JSP Expression −You can write the XML equivalent of the above syntax as ... Read More
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include action lets you insert files into the page being generated. The syntax looks like this −Unlike the include directive, which inserts the file at the time the JSP page is translated into a servlet, this action inserts the file at the time the page is requested.
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A declaration declares one or more variables or methods that you can use in Java code later in the JSP file. You must declare the variable or method before you use it in the JSP file.Following is the syntax for JSP Declarations −You can write the XML equivalent of the above syntax as follows − code fragment Following is an example of Object declaration in JSP Declarations −
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A declaration declares one or more variables or methods that you can use in Java code later in the JSP file. You must declare the variable or method before you use it in the JSP file.Following is the syntax for JSP Declarations −You can write the XML equivalent of the above syntax as follows − code fragment Following is an example for JSP Declarations −
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This action lets you insert files into the page being generated. The syntax looks like this −Unlike the include directive, which inserts the file at the time the JSP page is translated into a servlet, this action inserts the file at the time the page is requested.Following table lists out the attributes associated with the include action −S.No.Attribute & Description1pageThe relative URL of the page to be included.2flushThe boolean attribute determines whether the included resource has its buffer flushed before it is included.ExampleLet us define the following two files (a)date.jsp and (b) main.jsp as follows −Following is the content of ... Read More
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A scriptlet can contain any number of JAVA language statements, variable or method declarations, or expressions that are valid in the page scripting language.Following is the syntax of Scriptlet −You can write the XML equivalent of the above syntax as follows − code fragment Any text, HTML tags, or JSP elements you write must be outside the scriptlet. Following is the simple and first example for JSP − Hello World Hello World!