Creating json object in javascript and sending it to servlet

Question

i am creating json object to save data and then sending it to the servlet. But when i try to retrieve the object and display its contents in java servlet, it throws me an er

Answer 1

On the Java side of things you need to convert the JSON array to a Java POJO bean first to be able to (easily) do something with it. There are multiple APIs to do this; Google GSON and Jackson are two possibilities.

Jackson is used internally by Jersey, the reference implementation of the JAX-RS API; it works very well in my experience.

Answer 2

What you build isn't a "JSON object", but a plain javascript object.

You must encode your object in JSON :

var param = '?objarray=' + JSON.stringify(arrayOfObjects);
$.ajax({
     url: '/ProjectName/finalXmlServGen'+param,
     type: 'POST', 
     dataType: 'json',  
     success: function(result) {
       alert('SUCCESS');
     }
});

Or you may let jQuery do the encoding :

$.ajax({
     url: '/ProjectName/finalXmlServGen',
     type: 'POST', 
     dataType: 'json',
     data: {objarray: arrayOfObjects}
     success: function(result) {
       alert('SUCCESS');
     }
});