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  • 拦截器实现跨域

    在web.xml 中的配置

            <filter>
                <filter-name>crossorigin</filter-name>
                <filter-class>com.utils.CORSFilter</filter-class>
            </filter>
            <filter-mapping>
                <filter-name>crossorigin</filter-name>
                <url-pattern>/*</url-pattern>
            </filter-mapping>

    在com.utils下以下

    /**
     * 
     */
    package com.utils;
    
    import java.io.IOException;
    
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletResponse;
    
    /**
     * @author jomin
     *
     */
    public class CORSFilter implements Filter {
    
    
        public void destroy() {
            // TODO Auto-generated method stub
    
        }
    
    
        public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
                throws IOException, ServletException {
            // TODO Auto-generated method stub
            HttpServletResponse response = (HttpServletResponse) servletResponse;
            response.setHeader("Access-Control-Allow-Origin", "*");
            response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
            response.setHeader("Access-Control-Max-Age", "3600");
            response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
            filterChain.doFilter(servletRequest, servletResponse);
    
        }
    
    
        public void init(FilterConfig arg0) throws ServletException {
            // TODO Auto-generated method stub
    
        }
    
    }

    --------------------------------------------

    转自:https://blog.csdn.net/zpf0918/article/details/52624813 

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  • 原文地址:https://www.cnblogs.com/Jomini/p/9630338.html
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