spring mvc not returning json content - error 406

Question

I am using Spring MVC with JSON as specified in Ajax Simplification Spring 3.0 article.

After so many attempts and variations of my code depending on advice found on

Answer 1

Well, The answers on this page might be right but they didn't expatiate well. This is what I did

I added this to my pom.xml

    org.codehaus.jackson
    jackson-core-asl
    1.9.8


    org.codehaus.jackson
    jackson-mapper-asl
    1.9.8  

Then I added headers to my RequestMapping like below

@RequestMapping(value="/admin/getGallery", method = RequestMethod.GET, headers={"Content-Type=application/json"})

Then in my jquery ajax I added - contentType: "application/json", so it looks like

jQuery.ajax({
            type:'GET',
            url:"getGallery.html",
            data: "designId="+designId,
            processData:false,
            contentType: "application/json",
            //dataType: "json",
           success:function(data){
              console.log(data);

           },
            error : function(e) {
                console.log("ERROR: ", e);
            },
        });

Then in my servlet I added

If you have problem with util tag in your servlet just just add in the same servlet file

xmlns:util="http://www.springframework.org/schema/util"

and

xsi:schemaLocation="http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.0.xsd