jq ajax设置请求头类型

$.ajax({ type: "POST", url: getRootPath() + "safeguardFacilitiesArmory/addOrEdit.do", data: data, //必须是字符串 dataType: "json", headers:{"content-type":"application/json;charset=utf-8"}, //请求头类型 success: function (res) { if (res.rtnCode == 0) { return; } } });