方法一：

在数据服务目录中添加一个Web.config文件，文件内容是：

<?xml version="1.0" encoding="UTF-8"?>

<configuration>

<system.webServer>

<httpProtocol>

<customHeaders>

<add name="Access-Control-Allow-Origin" value="*" />

<add name="Access-Control-Allow-Methods" value="GET,POST,PUT,DELETE,HEAD,OPTIONS" />

<add name="Access-Control-Allow-Headers" value="Content-Type,api_key,Authorization,X-Requested-With" />

</customHeaders>

</httpProtocol>

</system.webServer>

</configuration>

 

方法二：

打开IIS，打开数据服务站点，切换到功能视图，点击HTTP响应标头，分别添加：

Access-Control-Allow-Methods : GET,POST,PUT,DELETE,HEAD,OPTIONS

Access-Control-Allow-Origin : * 

Access-Control-Allow-Headers : Content-Type,api_key,Authorization,X-Requested-With