package com.ruoyi.auth.config.log;
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import com.alibaba.fastjson2.JSON;
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import lombok.extern.slf4j.Slf4j;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.annotation.Around;
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import org.aspectj.lang.annotation.Aspect;
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import org.aspectj.lang.reflect.MethodSignature;
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import org.springframework.stereotype.Component;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import javax.servlet.http.HttpServletRequest;
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import java.lang.reflect.Method;
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import java.util.Arrays;
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import java.util.Enumeration;
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/**
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* Feign 调用日志切面
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*
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* <p>拦截所有带 @FeignClient 注解的接口方法，记录：
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* <ul>
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* <li>调用的接口类名 + 方法名</li>
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* <li>入参（JSON 序列化）</li>
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* <li>出参（JSON 序列化）</li>
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* <li>耗时（ms）</li>
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* <li>异常信息（含完整堆栈）</li>
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* </ul>
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*/
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@Slf4j
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@Aspect
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@Component
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public class FeignLoggingAspect {
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/**
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* 拦截所有带 @FeignClient 注解的接口的所有方法
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*/
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@Around("within(@org.springframework.cloud.openfeign.FeignClient *)")
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public Object logFeignCall(ProceedingJoinPoint pjp) throws Throwable {
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return doLog(pjp);
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}
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private Object doLog(ProceedingJoinPoint pjp) throws Throwable {
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MethodSignature signature = (MethodSignature) pjp.getSignature();
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Method method = signature.getMethod();
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// 使用接口声明类名，避免打印动态代理类名（如 $Proxy270）
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String className = signature.getDeclaringType().getSimpleName();
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String methodName = method.getName();
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String fullMethod = className + "#" + methodName;
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Object[] args = pjp.getArgs();
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String argsJson = safeToJson(args);
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String headerStr = extractCurrentHeaders();
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if (headerStr != null) {
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log.info("[Feign] >>> 调用开始 | method={} | headers={} | args={}", fullMethod, headerStr, argsJson);
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} else {
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log.info("[Feign] >>> 调用开始 | method={} | args={}", fullMethod, argsJson);
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}
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long start = System.currentTimeMillis();
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try {
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Object result = pjp.proceed();
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long elapsed = System.currentTimeMillis() - start;
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String resultJson = safeToJson(result);
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log.info("[Feign] <<< 调用成功 | method={} | elapsed={}ms | result={}", fullMethod, elapsed, resultJson);
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return result;
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} catch (Throwable ex) {
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long elapsed = System.currentTimeMillis() - start;
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log.error("[Feign] <<< 调用异常 | method={} | elapsed={}ms | error={} | args={}",
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fullMethod, elapsed, ex.getMessage(), argsJson, ex);
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throw ex;
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}
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}
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/**
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* 安全序列化为 JSON，避免序列化失败导致日志切面本身抛异常
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*/
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private String safeToJson(Object obj) {
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if (obj == null) {
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return "null";
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}
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try {
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if (obj instanceof Object[]) {
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return JSON.toJSONString(Arrays.asList((Object[]) obj));
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}
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return JSON.toJSONString(obj);
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} catch (Exception e) {
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return "[序列化失败: " + obj.getClass().getSimpleName() + "]";
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}
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}
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/**
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* 从当前请求上下文中提取请求头信息
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*/
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private String extractCurrentHeaders() {
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try {
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ServletRequestAttributes attrs = (ServletRequestAttributes)
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RequestContextHolder.getRequestAttributes();
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if (attrs == null) return "{}";
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HttpServletRequest request = attrs.getRequest();
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StringBuilder sb = new StringBuilder("{");
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boolean first = true;
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Enumeration<String> headerNames = request.getHeaderNames();
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while (headerNames != null && headerNames.hasMoreElements()) {
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String name = headerNames.nextElement();
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String value = request.getHeader(name);
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if (!first) sb.append(", ");
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first = false;
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sb.append(name).append("=").append(value);
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}
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return sb.append("}").toString();
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} catch (Exception e) {
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return "{error: " + e.getMessage() + "}";
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}
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}
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}
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