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  • session跨域丢失问题

    配置一个 filter

     1 package com.psm.filter;
     2 
     3 import javax.servlet.*;
     4 import javax.servlet.http.HttpServletRequest;
     5 import javax.servlet.http.HttpServletResponse;
     6 import java.io.IOException;
     7 
     8 /**
     9  * 添加Ajax Access-Control-Allow-Origin跨域请求
    10  *
    11  * @author
    12  * @create 2018-02-26 17:00
    13  **/
    14 public class VisitFilter implements Filter {
    15 
    16     @Override
    17     public void init(FilterConfig filterConfig) throws ServletException {
    18 
    19     }
    20 
    21     @Override
    22     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
    23         HttpServletResponse res = (HttpServletResponse) servletResponse;
    24         HttpServletRequest request=(HttpServletRequest)servletRequest;
    25         res.setContentType("textml;charset=UTF-8");
    26         res.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
    27         res.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
    28         res.setHeader("Access-Control-Max-Age", "0");
    29         res.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache, X-Requested-With, If-Modified-Since, Pragma, Last-Modified, Cache-Control, Expires, Content-Type, X-E4M-With,userId,token");
    30         res.setHeader("Access-Control-Allow-Credentials", "true");
    31         res.setHeader("XDomainRequestAllowed","1");
    32         filterChain.doFilter(servletRequest,servletResponse);
    33     }
    34 
    35     @Override
    36     public void destroy() {
    37 
    38     }
    39 }

    添加下面这两个

    response.setHeader("Access-Control-Allow-Credentials","true"); //是否支持cookie跨域
    response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));

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  • 原文地址:https://www.cnblogs.com/oldzhang1222/p/8491957.html
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