cross origin resource sharing

http://blog.csdn.net/hfahe/article/details/7730944

http://yuguo.us/weblog/access-control-allow-origin/

http://enable-cors.org/

response.setHeader("Access-Control-Allow-Origin", "*");

<filter>
  <filter-name>CorsFilter</filter-name>
  <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
</filter>
<filter-mapping>
  <filter-name>CorsFilter</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>