Thread Safe JSP Pages

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How can I implement a thread-safe JSP page?

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You can make your JSPs thread-safe by having them implement the SingleThreadModel interface. This is done by adding the directive <%@ page isThreadSafe="false" %> within your JSP page.

2007-04-03, 6876👍, 0💬

Thread Safe JSP Pages
How can I implement a thread-safe JSP page? You can make your JSPs thread-safe by having them implement the SingleThreadModel interface. This is done by adding the directive <%@ page isThreadSafe="false" %> within your JSP page. 2007-04-03, 6877👍, 0💬

JComponent and Component
Why does JComponent have add() and remove() methods but Component does not? Because JComponent is a subclass of Container, and can contain other components and jcomponents. 2007-04-03, 5661👍, 0💬

Preventing JSP Pages Being Cached by Browsers
How do I prevent the output of my JSP or Servlet pages from being cached by the browser? You will need to set the appropriate HTTP header attributes to prevent the dynamic content output by the JSP page from being cached by the browser. Just execute the following scriptlet at the beginning of your J... 2007-04-03, 5588👍, 0💬

SingleThreadModel Deprecated
In the Servlet 2.4 specification SingleThreadModel has been deprecated, why? Because it is not practical to have such model. Whether you set isThreadSafe to true or false, you should take care of concurrent client requests to the JSP page by synchronizing access to any shared objects defined at the ... 2007-04-03, 5534👍, 0💬

Overriding JSP Methods
What JSP lifecycle methods can I override? You cannot override the _jspService() method within a JSP page. You can however, override the jspInit() and jspDestroy() methods within a JSP page. jspInit() can be useful for allocating resources like database connections, network connections, and so forth... 2007-04-03, 5483👍, 0💬

Stoping Errors Displayed on JSP Pages
How do you restrict page errors display in the JSP page? You first set "Errorpage" attribute of PAGE directory to the name of the error page (ie Errorpage="error.jsp") in your jsp page. Then in the error jsp page set "isErrorpage=TRUE". When an error occur in your jsp page it will automatically call... 2007-04-03, 5435👍, 0💬

Including Static Files
How do I include static files within a JSP page? Static resources should always be included using the JSP include directive. This way, the inclusion is performed just once during the translation phase. Do note that you should always supply a relative URL for the file attribute. Although you can also... 2007-04-03, 5376👍, 0💬

How to Retrieve SQLWarning
How to Retrieve SQLWarning? SQLWarning objects are a subclass of SQLException that deal with database access warnings. Warnings do not stop the execution of an application, as exceptions do. They simply alert the user that something did not happen as planned. A warning can be reported on a Connectio... 2007-04-03, 5352👍, 0💬

Browser Redirect in JSP Pages
How do I perform browser redirection from a JSP page? You can use the response implicit object to redirect the browser to a different resource, as: response.sendRedirect("http:// interview.fyicenter.com/"); 2007-04-03, 5281👍, 0💬

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