One of the advantages with JSP is that Designers gave many handles to control the behavior of container. One such one is autoFlush JSP attribute of page directive. 1. What is autoFlush JSP? autoFlush is one of the 14 attributes, JSP supports. It takes boolean values of true or false. It indicates the container to …
1. What is buffer JSP? JSP first writes the response data to the buffer and when the buffer is full, the data is sent to client. "buffer" is one of the 14 attributes of page directive. When the PrintWriter object is closed with out.close(), the unfilled buffer is flushed to the client. 2. What is …
"pageEncoding" is one of the 14 attributes supported by JSP page directive. pageEncoding is used to read correctly the file data characters available on OS file system by JSP. If pageEncoding attribute is ignored by the Programmer, sometimes, it may lead problems with Cyrillic and Chinese characters especially with PHP language. A file may contain …
"errorPage" and "isErrorPage" are the two of 14 attributes supported by page directive. Now let us what are errorPage isErrorPage exception JSP 1. What is "errorPage"? Any JSP file declared with errorPage, when generates exceptions, can send the exceptions to another JSP file that is declared with isErrorPage. errorPage attribute is used to specify the …
errorPage isErrorPage exception JSP page directive with Example Read More »
Content type in Servlets/JSP is nothing but the format of data being sent by Web server to client as response. It is received by the browser on the client system and displayed to the user. The general format and also the default is text/html, that is, either simple text or text with HTML tags (of …
"import" is one of the 14 attributes, JSP page directive supports. import JSP is used to import packages in JSP. Example: <%@ page import="java.util.List" %> : imports only one interface List <%@ page import="java.util.*" %> <%@ page import="java.net.*" %> <%@ page import="java.io.*" %> In the above three separate import statements, three packages are imported. JSP …
"page directive" is one of the 3 directives, Java supports. "page" directive gives information, to the container, that can be applied to whole JSP file (page). General Syntax: <%@ page attributeName=”value” %> To give the information, page directive comes with 14 attributes. Each attribute gives a special processing information to the container. JSP Page Directive …
JSP Page Directive Tutorial 14 Attributes Examples Read More »
JSP Directives Tutorial in Questions/Answers format for east understanding. 1. What is JSP directive? JSP directive directs or instructs the container how it should behave with a few aspects of JSP code processing. A JSP directive influences JSP code structure in general on the whole. A JSP directive gives the special instructions to container, the …
implicit object exception JSP Explanation Example Syntax "exception" is one of the 9 implicit objects, supported by Java. "exception" is an object of java.lang.Throwable, available to the programmer to be used directly in the code without creating it. The exception object cannot be used always and everywhere in the JSP code. It is specially used …
"response" is one of the 9 implicit objects, JSP supports. It is an object of javax.servlet.http.HttpServletResponse interface. This object is used by the Programmer to send cookies to the client, to use HTTP status codes in programming and to redirect the client to a new page. Following are some important methods of HttpServletResponse that can …
1. What is implicit object request JSP? request is one of the 9 implicit objects, JSP supports. request is an object of javax.servlet.http.HttpServletRequest interface. Being implicit, it comes into existence (or created) automatically and the Programmer can use the object in his code without the necessity of creation. 2. With implicit object request JSP, what …
We know the HTTP Protocol nature (stateless and connectionless) is to break the connection (earlier established between Web client with Web server) when the response is delivered to client. If the same client would like to send another request to the same server, it should establish a new connection and send a fresh request again. …
"out" is one of the 9 implicit objects, Java supports. It represents an object of javax.servlet.jsp.JspWriter, a subclass of character stream java.io.Writer. Any data given to implicit object out JSP goes as output stream which is sent to client as response. That is, Programmer uses out object to send data to client. It is equivalent …
"application" is one of the 9 implicit objects, JSP supports. The "application" object represents an object of javax.servlet.ServletContext interface. This we have seen in Servlets at Reading Servlets Context Parameter with Example. Let us write a different program with JSP code. implicit object application JSP represents a global object that can be used by all …
Note: It is advised to read about ServletConfig interface in Servlets where at length discussed its importance, methods. One example is also given using ServletConfig in Servlet web xml init param Example using ServletConfig. config is one of the 9 implicit objects, JSP supports. config is an object of javax.servlet.ServletConfig interface. This interface is used …
After learning Scriptlets, Expressions, Declarations and our own methods – all in one example, it is the time to learn about comments used in JSP. We know JSP code contains static HTML code and dynamic JSP code. There are two types of of comments supporting static HTML and one type of comment supporting dynamic JSP …
Note: It is advised to go through "JSP Scriptlet, Expression and Declaration – all in one example" to know their scope and usage in JSP coding before proceeding this topic. We know earlier, JSP Declaration represents a global area for the whole JSP file where programmer can declare variables and methods that can be used …
Scriptlet, Expression and Declaration are the three building blocks of JSP code. Let us see the appropriate places when to use them and finally we will do one example where all the three are used. Note: It is advised to go through the separate examples on Scriptlets, expressions and declarations before going through this. Here, …
Note: It is advised to go through Scriptlet and Expression before proceeding this Declaration. We know the three building blocks of JSP code are Scriptlet, Expression and Declaration. Let us focus on JSP Declaration here. JSP Declaration represents the global area of a JSP page where you can write global (instance) variables and methods. These …
Note: It is advised to read Scriptlet tutorial before proceeding this page. The main building blocks of JSP code are Scriptlet, Expression and Declaration. In this tutorial let us see how to and where to use JSP Expression. We know a JSP page contains both static code (written by Web Designer in simple HTML) and …
