1.写filter过滤器
public class CorsFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletResponse res = (HttpServletResponse) response;
res.setHeader("Access-Control-Allow-Origin", "*");
res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
res.setHeader("Access-Control-Max-Age", "3600");
res.setHeader("Access-Control-Allow-Headers", "X-Requested-With, Content-Type, token");
res.setHeader("Access-Control-Allow-Credentials", "true");
chain.doFilter(request, response);
}
@Override
public void destroy() {
}
}
2.把filter注册到web.xml中 即可
