<!DOCTYPE html>
<html>
<body>
<h1>XMLHttpRequest 对象</h1>
<button type="button" onclick="loadDoc()">国家接口</button>
<button type="button" onclick="loadDoc1()">揽收仓接口</button>
<button type="button" onclick="loadDoc2()">产品接口</button>
<p id="demo"></p>
<script>
function loadDoc() {
var xhr = new XMLHttpRequest();
xhr.open('post', 'https://xxxx/api/values/FindCountryList', true);
var params = {
'countryId': '1',
};
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify(params));
xhr.onload = function(e) {
var xhr = e.target;
console.log(xhr.responseText);}
}
function loadDoc1() {
var xhr = new XMLHttpRequest();
xhr.open('post', 'https://xxx/api/values/FindWarehouseList', true);
var params = {
"warehouseCode":"03,04"
};
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify(params));
xhr.onload = function(e) {
var xhr = e.target;
console.log(xhr.responseText);}
}
function loadDoc2() {
var xhr = new XMLHttpRequest();
xhr.open('post', 'https://xxx/api/values/FindProductList', true);
var params = {
"Platform":"6"
};
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify(params));
xhr.onload = function(e) {
var xhr = e.target;
console.log(xhr.responseText);}
}
</script>
</body>
</html>
将自己的接口和参数替换到相应位置，生成html页面，打开页面，打开调试工具，点击对应按钮，如果控制台有接口返回，则说明该接口可跨域。
Tip:前提是，你请求的接口不应该是本地接口，否则验证没有任何意义
