web api解决跨域问题
时间: 2023-08-09 08:08:15 浏览: 54
回答: 要解决Web API的跨域问题,可以通过在Web.Config中的system.webServer节点下增加跨域配置来实现。具体的配置如下所示:
```
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*" />
<add name="Access-Control-Allow-Headers" value="AuthToken, Authorization, Origin, Content-Type, Accept, X-Requested-With" />
<add name="Access-Control-Allow-Methods" value="GET,HEAD,POST,OPTIONS" />
</customHeaders>
</httpProtocol>
</system.webServer>
```
另外,还可以在代码中使用EnableCorsAttribute来启用跨域请求。例如,在EnableCrossSiteRequest方法中添加以下代码:
```
private static void EnableCrossSiteRequest(HttpConfiguration config) {
var cors = new EnableCorsAttribute(
origins: "*",
headers: "*",
methods: "*"
);
config.EnableCors(cors);
}
```
这样就可以解决Web API的跨域问题了。\[1\]\[2\]
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