package com.yssh.config;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.servlet.*;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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//@Configuration
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public class MyFilterConfig implements Filter {
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private Logger logger = LoggerFactory.getLogger(getClass());
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@Override
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public void init(FilterConfig filterConfig) throws ServletException {
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logger.info("过滤器初始化");
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}
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@Override
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public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
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HttpServletResponse response = (HttpServletResponse) servletResponse;
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HttpServletRequest request = (HttpServletRequest) servletRequest;
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//*表示允许所有域名跨域
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logger.info("进入过滤器");
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String origin = request.getHeader("Origin");
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response.setHeader("Access-Control-Allow-Origin", origin);
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response.setHeader("Access-Control-Allow-Methods", "POST, PUT, GET, OPTIONS, DELETE");
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response.setHeader("Access-Control-Max-Age", "5000");
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response.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, Authorization, Token");
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response.setHeader("Access-Control-Allow-Credentials", "true");
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String method = request.getMethod();
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if (method.equalsIgnoreCase("OPTIONS")) {
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servletResponse.getOutputStream().write("Success".getBytes("utf-8"));
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} else {
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filterChain.doFilter(request, response);
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}
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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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