Spring-Mvc

解决跨域访问问题，只需在被访问的应用中加入一个请求过滤器： 1public class CorsFilter implements Filter { 2 @Override 3 public void doFilter(ServletRequest request, ServletResponse response, 4 FilterChain chain) throws IOException, ServletException { 5 6 HttpServletRequest req = (HttpServletRequest) request; 7 HttpServletResponse res = (HttpServletResponse) response; 8 9 if (req.getHeader("Origin") != null) { 10 res.addHeader("Access-Control-Allow-Origin", "*"); 11 } 12 13 if ("OPTIONS".equals(req.getMethod())) { 14 res.addHeader("Access-Control-Allow-Methods", "OPTIONS, GET, POST"); 15 res.addHeader("Access-Control-Allow-Headers","Origin, Content-Type"); 16 res.addHeader("Access-Control-Max-Age", "-1"); 17 } 18 chain.doFilter(req, res); 19 } 20 21 @Override 22 public void destroy() { 23 } 24 25 @Override 26 public void init(FilterConfig filterConfig) throws ServletException { 27 } 28}