Ajax請求跨域問題，報錯XMLHttpRequest cannot load ''. No 'Access-Control-Allow-Origin' header is present on t
報錯：XMLHttpRequest cannot load ''. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin ' ' is therefore not allowed access.
原因：ajax預設不支援跨域訪問，相應解決這問題很簡單，加上dataType: 'JSONP'就可以完美解決
$.ajax({
type: "GET",
dataType: 'JSONP',
url: 'http://'+element.vm.ip+':8034/Monitor/StartMonitorMachine',
data: {
"configId": stdetailsvm.monitorConfigList[i].id,
"itemId": itemId,
"startTime": stdetailsvm.currentTime(),
"ip":element.vm.ip
},
success: function (data) {
if (data.Data == "0") {
} else {
alert("向伺服器傳送監控指令失敗。"+data.Message);
}
},
error: function (data) {
alert(data.retMSG);
}
});