How to take value from servlet respone to another servlet?
Question
I'm basically giving output to my datas from database from Data shown servlet and when pressed update datas I'll update with the given contenteditable <h2> then go into new servlet take the value update in MongoDb and redirect to data shown servlet. Thing is I cannot take the <h2> from a responed servlet. Questions are how can I take the contenteditable <h2> value from other servlet and how can I redirect to this servlet again?
Data shown servlet:
PrintWriter writer = response.getWriter();
// build HTML code
String htmlRespone = "<html>";
htmlRespone +="<head>";
htmlRespone += "<form method=\"post\" action=\"updateServlet\">";
htmlRespone += "<h2 id=\"id\">Id: " + combobox + "</h2>";
htmlRespone += "<h2 >Status:</h2>";
htmlRespone += "<h2 id=\"stat\" contenteditable='true'>"+array[0]+"</h2>";
htmlRespone +="</head>";
htmlRespone += "</html>";
// return response
writer.println(htmlRespone);
Data update servlet(status returns null now.):
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// code to process the form...
status=request.getHeader("stat");
PrintWriter writer = response.getWriter();
// build HTML code
String htmlRespone = "<html>";
htmlRespone += "<h2>" + status+ "</h2>";
htmlRespone += "</html>";
// return response
writer.println(htmlRespone);
}
1 answers
solution1
0 2017-04-05 10:05:02
If you need to include the response generated by another servlet, call request.getRequestDispatcher("path to include").include() .
If you need to pass the request to another thread, use request.getRequestDispatcher("path to forward").forward() .
If you need to pass a value to the servlet you're including or forwarding, use a request attribute.
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