Server-Side Development Section Index | Page 3

Short answer: you can't. Fortunately, sessions expire automatically after a period of time; check your servlet engine documentation to see how to set this timeout period. I felt that there should...more

Look at the Tomcat IIS How to file located at the address : http://jakarta.apache.org/tomcat/jakarta-tomcat/src/doc/tomcat-iis-howto.html (or http://jakarta.apache.org/cvsweb/index.cgi/jakarta-t...more

No, there isn't. Remember, JSP is strictly a server-side technology, which is responsible for generating dynamic content in HTML, DHTML or XML format. Setting focus on specific input elements wi...more

It depends on the web server you are using to test your servlet. For instance, with Tomcat, you would replace the WAR file and the server notices the change and loads the new servlet on the next r...more

How can you copy a JavaScript variable to a JSP session variable without using cookies? I am trying to store the value of a SELECT object in a session variable so it can be accessed in other JSP's...more

The following CGI environment variables, and their descriptions, were taken from the CGI specification, at http://hoohoo.ncsa.uiuc.edu/cgi/env.html. Please see http://java.sun.com/products/servle...more

The Java Naming and Directory Interface (JNDI) is an application programming interface (API) for accessing different kinds of naming and directory services. JNDI is not specific to a particular n...more

Solution 1: Just use HTTP! This has nothing to do with servlets per se. Make sure the file is on your web server. Then you can either embed a link for your user to click, as <a href="run...more

You can't do this directly but it is easy to do indirectly using JavaScript. Essentially you return a page that has as its onLoad event code that opens a page and gets your new data. Your servle...more

A stateful session bean is an enterprise bean (EJB component) that acts as a server-side extension of the client that uses it. The stateful session bean is created by a client and will work for o...more

You can use the response implicit object to redirect the browser to a different resource, as: response.sendRedirect("http://www.foo.com/path/error.html"); You can also physically alter the Loc...more

You can use "JSP-style" comments to selectively block out code while debugging or simply to comment your scriptlets. JSP comments are not visible at the client. For example: <%-- the script...more

Yes. However, unlike servlets, you are not required to implement HTTP-protocol specific methods like doGet() or doPost() within your JSP page. You can obtain the data for the FORM input elements...more

On the client side, the client's browser must support form-based upload. Most modern browsers do, but there's no guarantee. For example, <FORM ENCTYPE='multipart/form-data' method='POST' ...more

To create an image or do image processing from Java, there are several packages and classes available. See the Purple Servlet References for a list. Once you have an image file in your servlet...more