如何"轻松"配置Spring MVC,以便我的应用程序中的任何API的每个请求都返回神奇的CORS头?
例如,使用@ControllerAdvice
或使用常见的AOP建议。
答案 0 :(得分:2)
我解决了这个步骤:
<dependency> <groupId>com.thetransactioncompany</groupId> <artifactId>cors-filter</artifactId> <version>2.2.1</version> </dependency>
在web.xml中添加此参数
<filter>
<filter-name>CORS</filter-name>
<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
<init-param>
<param-name>cors.allowGenericHttpRequests</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>cors.allowOrigin</param-name>
<param-value>*</param-value>
</init-param>
<init-param>
<param-name>cors.allowSubdomains</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>cors.supportedMethods</param-name>
<param-value>GET, HEAD, POST, DELETE, OPTIONS</param-value>
</init-param>
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>*</param-value>
</init-param>
<init-param>
<param-name>cors.supportsCredentials</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>cors.maxAge</param-name>
<param-value>3600</param-value>
</init-param>
</filter>
答案 1 :(得分:1)
其中一种方法是使用Interceptor类,如下所示:
让我们为所有网址设置拦截器方法,如下所示:
public boolean preHandle(HttpServletRequest request,
HttpServletResponse response, Object handler)
throws Exception {
request.setHeader(HttpHeaders.CONTENT_TYPE, "application/jsonp");
//OR
response.addHeader(HttpHeaders.CONTENT_TYPE, "application/jsonp");
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
}
我们必须只配置拦截器来满足Controller方法。
JSONP 是CORS通信的首选格式之一。