<script type="text/javascript">
			$(document).ready(function () {
					$.ajax({
						type : "POST",
						url : "http://127.0.0.1:9999/app/getToken.ya",
						success : function(data) {
							var token = eval(data).rows[0];
							window.location.href="http://10.6.2.26:8080/BOE/OpenDocument/opendoc/openDocument.jsp?token="+token;
						}
					}); 
			})
		</script>
 

報錯：[Web瀏覽器] "XMLHttpRequest cannot load http://127.0.0.1:9999/app/getToken.ya. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8020' is therefore not allowed access."/HelloHBuilder/index.html (0)

原因是ajax跨域請求被伺服器端拒絕。只需要在伺服器端加入：

response.setHeader("Access-Control-Allow-Origin", "*");
 

即可完美解決，至於安全性問題，後期再說。