package com.vincent.rsf.server.common.interceptor.severlet;
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import org.springframework.stereotype.Component;
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import org.springframework.web.filter.OncePerRequestFilter;
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import javax.servlet.FilterChain;
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import javax.servlet.ServletException;
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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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@Component
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public class CustomParameterFilter extends OncePerRequestFilter {
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@Override
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protected void doFilterInternal(HttpServletRequest request,
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HttpServletResponse response,
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FilterChain filterChain)
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throws ServletException, IOException {
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ParameterAddableRequest wrappedRequest = new ParameterAddableRequest(request);
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// 添加系统级参数
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wrappedRequest.addParameter("systemVersion", "1.0.0");
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wrappedRequest.addParameter("environment", System.getProperty("spring.profiles.active", "default"));
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// 添加请求追踪信息
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addTraceInfo(wrappedRequest);
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filterChain.doFilter(wrappedRequest, response);
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}
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private void addTraceInfo(ParameterAddableRequest request) {
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String traceId = request.getHeader("X-Trace-Id");
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// if (traceId == null || traceId.isEmpty()) {
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// traceId = UUID.randomUUID().toString();
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// }
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request.addParameter("traceId", "traceId");
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}
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}
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