spring mvc 解决跨域问题

1、在web.xml中配置

<filter>   

     <filter-name>CORS</filter-name>   

     <filter-class>com.thetransactioncompany.cors.CORSFilter</filter-class>   

     <init-param>   

     <param-name>cors.allowOrigin</param-name>   <!-- //配置授信的白名单的域名！ -->

         <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>   

<filter-mapping>   

     <filter-name>CORS</filter-name>   

     <url-pattern>/*</url-pattern >   

</filter-mapping>

2、导入jar包java-property-utils-1.9.jar、cors-filter-1.7.jar