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Request header field token is not allowed by Access-Control-Allow-Headers in


前后端分离项目

后端接口做了跨域的处理

前端在header中传递了token,解决办法:

@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");
//res.setHeader("Access-Control-Allow-Headers", "Access-Control");
res.setHeader("Access-Control-Allow-Headers", "*");
res.setHeader("Allow", "POST");
chain.doFilter(request, response);

}

主要是:

Request header field token is not allowed by Access-Control-Allow-Headers in_java

希望对你有所帮助

 

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