不再产生默认流水号,以skywalking为准,删除多余的拦截器
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3d2961fabf
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package cn.iocoder.dashboard.framework.tracer.core;
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/**
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* 用于扩展获取traceId的场景,需要装载到Spring bean容器中.
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*
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* @author 麻薯
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*/
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public interface ITrace {
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/**
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* 用于接入三方traceId
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*
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* @return traceId
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*/
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String getTraceId();
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}
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package cn.iocoder.dashboard.framework.tracer.filter;
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import cn.hutool.core.util.StrUtil;
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import cn.iocoder.dashboard.framework.tracer.core.util.TracerUtils;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.lang.Nullable;
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import org.springframework.stereotype.Component;
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import org.springframework.web.servlet.HandlerInterceptor;
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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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/**
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* 对Spring Mvc 的请求拦截, 添加traceId.
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*
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* @author mashu
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*/
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@Slf4j
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@Component
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public class ServletTraceFilter implements Filter {
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@Value("${cn.iocoder.tracer.name:global-trace-id}")
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private String traceIdName;
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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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HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
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HttpServletResponse httpServletResponse = (HttpServletResponse) servletResponse;
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try {
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// 请求中traceId
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String reqTraceId = (String)httpServletRequest.getHeader(traceIdName);
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// skywalking中的traceId
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String skywalkingTraceId = TracerUtils.getSkywalkingTraceId();
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String traceId ;
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if (null == reqTraceId && StrUtil.isBlank(skywalkingTraceId)) {
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// 两者皆空,添加默认的.
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traceId = TracerUtils.getTraceId();
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httpServletResponse.setHeader(traceIdName, traceId);
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} else if (null == reqTraceId && StrUtil.isNotBlank(skywalkingTraceId)){
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// 若请求空,则添加,为没有skywalking的系统添加一个TraceId
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traceId = skywalkingTraceId;
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httpServletResponse.setHeader(traceIdName, traceId);
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} else if (null != reqTraceId && StrUtil.isBlank(skywalkingTraceId)) {
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// 请求非空, skywalking为空
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traceId = reqTraceId;
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} else {
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// 两者皆非空,不动请求头
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traceId = skywalkingTraceId;
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}
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TracerUtils.saveThreadTraceId(traceId);
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log.debug("请求进入,添加traceId[{}]", traceId);
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filterChain.doFilter(httpServletRequest, httpServletResponse);
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} finally {
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// 请求结束,删除本地的链路流水号
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log.debug("请求结束,删除traceId[{}]", TracerUtils.getTraceId());
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TracerUtils.deleteThreadTraceId();
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}
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}
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}
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