解决The value of the ‘Access

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解决The value of the ‘Access

1.问题描述：

前台vue项目中需要在request_header中传cookie给后台 但是控制台报错如下；

Access to XMLHttpRequest at ‘192.168.0.230:9800/v1/user/wwwlogin’ from Origin ‘192.168.0.230:8888’ has been blocked by CORS policy: response to preflight request doesn’t pass access Control check: The value of the ‘Access-Control-Allow-Origin’ header in the response must not be the wildcard ‘*’ when the request’s credentials mode is ‘include’. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute.

2.问题分析：

后台的跨域配置Access-Control-Allow-Origin不能使用通配符 ‘*’；

请求的origin和后台设置的origin不一致。

3.问题解决：

跨域配置修改： 通过动态的获取origin，可解决此问题

res.addHeader("Access-Control-Allow-Origin", req.getHeader("origin"));

springboot完整的跨域配置：

package com.cxstar.dao.data.config; import org.springframework.stereotype.Component; import javax.servlet.*; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; /** * 单机测试时如果有跨域问题，就用这个Filter解决，把@Component前的注释移除即可 * 如果是在微服务中，跨域问题在网关层进行了解决，服务没必要再次进行处理，把@Component注释掉即可 */ @Component public class CORSFilter implements Filter { @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletResponse res = (HttpServletResponse) response; HttpServletRequest req = (HttpServletRequest) request; res.addHeader("Access-Control-Allow-Credentials", "true"); res.addHeader("Access-Control-Allow-Origin", req.getHeader("origin")); res.addHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT"); res.addHeader("Access-Control-Allow-Headers", "Content-Type,X-CAF-Authorization-Token,sessionToken,X-TOKEN,customercoderoute,authorization,conntectionid,Cookie"); if (((HttpServletRequest) request).getMethod().equals("OPTIONS")) { response.getWriter().println("ok"); return; } chain.doFilter(request, response); } @Override public void destroy() { } @Override public void init(FilterConfig filterConfig) throws ServletException { } }

本文标签： Access