服务器端支持跨域

服务器端使用spring MVC编写
使用过滤器

public class SimpleCORSFilter implements Filter{

    @Override
    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse res,
            FilterChain chain) throws IOException, ServletException {
            HttpServletResponse response = (HttpServletResponse) res;
            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");
            chain.doFilter(req, res);

    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {
    }

}

在web.xml中添加:

<filter>
      <filter-name>cors</filter-name>
      <filter-class>com.web.filter.SimpleCORSFilter</filter-class>
    </filter>
    <filter-mapping>
      <filter-name>cors</filter-name>
      <url-pattern>/*</url-pattern>
    </filter-mapping>