Chapter 3: Handling the Client Request: Form Data

Source Code in This Chapter

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• ThreeParams.java Servlet that reads three specific parameters. Uses a few small utility methods from ServletUtilities.
• ThreeParamsForm.html HTML form acting as front end to the ThreeParams servlet.
• ShowParameters.java Servlet that displays the values of all input parameters.
• ShowParametersPostForm.html POST-based front end to the ShowParameters servlet.
• ShowParametersGetForm.html GET-based front end to the ShowParameters servlet.
• SubmitResume.html Front end to the Resume-processing servlet. Uses the jobs-site-styles.css style sheet.
• SubmitResume.java Resume-processing servlet.
• BadCodeServlet.java Incorrect servlet that fails to filter special characters from code snippets.
• FilteredCodeServlet.java Correct servlet that uses ServletUtilities.filter (see ServletUtilities) to replace HTML-specific characters.
• ServletUtilities.java Small utility library used by most servlets in this chapter.

URLs in This Chapter

• Specification for Cascading Style Sheets (Level 1)
• CERT advisory on cross-site scripting attack. Provides one motivation for the filter method of ServletUtilities.
• Microsoft advisory on cross-site scripting attack. Provides one motivation for the filter method of ServletUtilities.

General

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