package com.dy.common.webFilter;
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import java.io.IOException;
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import jakarta.servlet.*;
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import jakarta.servlet.http.HttpServletRequest;
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import jakarta.servlet.http.HttpServletResponse;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.stereotype.Component;
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/**
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* SpringBoot 跨域处理过滤器
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*/
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@Slf4j
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@Component
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public class CROSFilter implements Filter {
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@Override
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public void init(FilterConfig filterConfig) throws ServletException {
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}
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@Override
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public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
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throws IOException, ServletException {
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HttpServletResponse response = (HttpServletResponse) res;
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//HttpServletRequest reqs = (HttpServletRequest) req;
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/*
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* 跨域设置允所有请求跨域
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* 如果允许指定的客户端跨域设置: http://127.0.0.1:8020
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*/
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response.setHeader("Access-Control-Allow-Origin","*");
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response.setHeader("Access-Control-Allow-Credentials", "true");
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response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
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response.setHeader("Access-Control-Max-Age", "3600");
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response.setHeader("Access-Control-Allow-Headers", "Content-Type");
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if (((HttpServletRequest) req).getMethod().equals("OPTIONS")) {
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response.getWriter().println("ok");
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return;
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}
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chain.doFilter(req, res);
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}
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@Override
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public void destroy() {
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}
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}
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