How Servlets and JSPs Work

• Servlets

  Servlets are java code that produce HTML code. They run on the Web server. A servlet must be compiled into byte code before it can run.

  Here are some Web application files that use a very simple servlet:

  • convert.html -- creates a form that calls the servet.
  • TempServlet.java -- The java code that writes out the html code.
  • This link runs the servlet (if my server is running)
  
  

• Java Server Pages (JSPs)

  JSPs allow a Web developer to write mostly using HTML, but occasionally calling tags and java code to produce dynamic content. A JSP is automatically converted into a servlet for it to run.

  Here are some Web application files that use a very simple JSP:

  • jspConvert.html -- creates a form that calls the JSP.
  • convert.jsp -- The jsp that produces the html code.
  • convert_jsp.java -- The servlet that was automatically created from the jsp.
  • This link runs the jsp (if my server is running)

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  Last modified: Thu Sep 11 11:59:30 Central Daylight Time 2003