[转] $.ajax中contentType: “application/json” 的用法

不使用contentType: “application/json”则data可以是对象

$.ajax({ url: actionurl, type: "POST", datType: "JSON", data: { id: nodeId }, async: false, success: function () {} });

 

使用contentType: “application/json”则data只能是json字符串

$.ajax({ url: actionurl, type: "POST", datType: "JSON", contentType: "application/json" data: "{'id': " + nodeId +"}", async: false, success: function () {} });