JQuery Ajax callback function value out of the alert [object Object] solution

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        var pro=$("#activity_project").val();
         type: "POST",
         url: "${pageContext.request.contextPath}/getMyPlan",
         data: { //Sent to the database
         dataType: 'json',
         success: function(data) {
              $.each(data, function(index,value){

$("#activity_project").append('<option value="data[index].id">data[index].specification</option>');              });


It is recommended to use console.log (data); the output results

The results of Google browser

Another method is to modify the code

 Results alert is out of object XML document, this makes me very confusing, the output is the string, why the transmission format is XML?

response.setContentType("text/html;charset=UTF-8"); Alert is the string you want.

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Posted by Payne at November 16, 2013 - 5:16 PM