ajax - jQuery Error connection refused -

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i created java web application using apache tomcat 8, , used jquery ajax call servlet. used same application using apache tomcat 7, , when call servlet via jquery ajax, gives me following error:

net::err_connection_reset

here ajax code:

   $.get("servletname", { label: data1value                 }, function(responsetext){                      alert('response text: ' + responsetext);                       });                  });

where going wrong? kindly assist me.


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