Retrieve the data sent as JSON from JavaScript, inside a servlet

Question

I have a query on retrieving data sent as JSON from a JavaScript, inside a Java servlet. Following is what I am doing...

This is the part of the code inside JavaScr

Answer 1

The request parameter map is a Map<String, String[]> where the map key is the parameter name and map value are the parameter values --HTTP allows more than one value on the same name.

Given the printout of your map, the following should work:

String item0Name = request.getParameter("items[0][name]");
String item0Time = request.getParameter("items[0][time]");
String item1Name = request.getParameter("items[1][name]");
String item1Time = request.getParameter("items[1][time]");

If you want a bit more dynamics, use the following:

for (int i = 0; i < Integer.MAX_VALUE; i++) {
    String itemName = request.getParameter("items[" + i + "][name]");
    String itemTime = request.getParameter("items[" + i + "][time]");

    if (itemName == null) {
        break;
    }

    // Collect name and time in some bean and add to list yourself.
}

Note that setting the response content type is irrelevant when it comes to gathering the request parameters.