设置了simpleCROSFilter但是还是没法支持跨域访问

Question

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app>
    <display-name>Archetype Created Web Application
    </display-name>
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-web.xml</param-value>
        </init-param>
        <init-param>
            <param-name>listings</param-name>
            <param-value>true</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

    <filter>
        <filter-name>cors</filter-name>
        <filter-class>com.greenfootprint.greenmiracle.dto.SimpleCORSFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>cors</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>

SimpleCROSFilter.java

package com.greenfootprint.greenmiracle.dto;
import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@Component
public class SimpleCORSFilter implements Filter{

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        // TODO Auto-generated method stub

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        HttpServletResponse httpResponse = (HttpServletResponse) response;
        httpResponse.setHeader("Access-Control-Allow-Origin", "*");
        httpResponse.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE,PUT");
        httpResponse.setHeader("Access-Control-Max-Age", "3600");
        httpResponse.setHeader("Access-Control-Allow-Headers", "X-Requested-With, Content-Type, Accept,eu,ep,ctoken");
        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
        // TODO Auto-generated method stub

    }

}

错误提示

Access to XMLHttpRequest at 'http://127.0.0.1:8080/greenmiracle/user/getUserMassageByUk_name?uk_name=test0021' from origin 'chrome-search://local-ntp' has been blocked by CORS policy: Request header field x-access-token is not allowed by Access-Control-Allow-Headers in preflight response.

Answer 1

https://blog.csdn.net/qq_21359207/article/details/84990594