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java Programming Glossary: request.getparameter

java.lang.IllegalStateException: Cannot forward after response has been committed

http://stackoverflow.com/questions/2123514/java-lang-illegalstateexception-cannot-forward-after-response-has-been-committe

response has been committed int noOfRows Integer.parseInt request.getParameter noOfRows String chkboxVal String FormatId null Vector vRow new.. GroupId String GroupDesc for int i 0 i noOfRows i if request.getParameter chk_select i null chkboxVal notticked else chkboxVal request.getParameter.. chk_select i null chkboxVal notticked else chkboxVal request.getParameter chk_select i if chkboxVal.equals ticked fwdurl true Statement..

Populating child dropdownlists in JSP/Servlet

http://stackoverflow.com/questions/2263996/populating-child-dropdownlists-in-jsp-servlet

response throws ServletException IOException String dd request.getParameter dd ID of child DD to fill options for. String val request.getParameter.. dd ID of child DD to fill options for. String val request.getParameter val Value of parent DD to find associated child DD options for...

How to upload files to server using JSP/Servlet?

http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet

When I add enctype multipart form data to the form then request.getParameter returns null . During research I stumbled upon Apache Common.. form enctype of application x www form urlencoded . The request.getParameter and consorts would all return null when using multipart form.. parametermap of the request so that you can continue using request.getParameter the usual way and retrieve the uploaded file by request.getAttribute..

How do servlets work? Instantiation, session variables and multithreading

http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading

IOException Object thisIsThreadSafe thisIsNOTThreadSafe request.getParameter foo BAD Shared among all requests thisIsThreadSafe request.getParameter.. foo BAD Shared among all requests thisIsThreadSafe request.getParameter foo OK this is thread safe. See also Servlets and Multithreading..

How to avoid Java Code in JSP-Files?

http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files

I know that something like the following three lines x 1 request.getParameter name counter is an oldschool way of coding and in JSP version.. throws ServletException IOException String username request.getParameter username String password request.getParameter password User.. username request.getParameter username String password request.getParameter password User user userService.find username password if user..

Design Patterns web based applications

http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications

response throws Exception String username request.getParameter username String password request.getParameter password User.. username request.getParameter username String password request.getParameter password User user userDAO.find username password if user null..