tomcat跨域请求
<!-- tomcat跨域请求开始 --><filter>
<filter-name>CORS</filter-name>
<filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>
<init-param>
<param-name>cors.allowOrigin</param-name>
<param-value>*</param-value>
</init-param>
<init-param>
<param-name>cors.supportedMethods</param-name>
<param-value>GET, POST, HEAD, PUT, DELETE</param-value>
</init-param>
<init-param>
<param-name>cors.supportedHeaders</param-name>
<param-value>Accept, Origin, X-Requested-With, Content-Type, Last-Modified</param-value>
</init-param>
<init-param>
<param-name>cors.exposedHeaders</param-name>
<param-value>Set-Cookie</param-value>
</init-param>
<init-param>
<param-name>cors.supportsCredentials</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<!-- 请求过滤器开始-->
<filter-mapping>
<filter-name>CORS</filter-name>
<url-pattern>/*</url-pattern>
<!-- 为了安全考虑可以在过滤器中写上请求的路径 -->
</filter-mapping>
</filter-mapping>
<!-- 请求过滤器结束 -->
<!-- tomcat跨域请求结束 -->
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