抽离记录日志的逻辑到单独一个过滤器内

src/main/java/xyz/thewhitedog9487/WebAPI/Controller/Filter/LogClientInfo.java

@@ -0,0 +1,28 @@
+package xyz.thewhitedog9487.WebAPI.Controller.Filter;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import java.io.IOException;
+
+@Slf4j
+@Component
+public class LogClientInfo extends OncePerRequestFilter {
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
+        log.info("接收到对于{} {} 的请求", request.getMethod(), request.getRequestURL() + ( ( request.getQueryString() == null ) ? "" : "?" + request.getQueryString() ) );
+        log.info("请求ID：{}", request.getRequestId());
+        if (request.getHeader("CF-Connecting-IP".toLowerCase()) instanceof String IP) {
+            log.info("请求携带了CF-Connecting-IP头部，IP为：{}", IP); }
+        else if(request.getHeader("X-Forwarded-For".toLowerCase()) instanceof String IP) {
+                IP = IP.split(",")[0].trim();
+                log.info("请求携带了X-Forwarded-For头部，IP为：{}", IP); }
+        else {
+            log.info("请求未携带CF-Connecting-IP和X-Forwarded-For头部，HttpServletRequest获取到的IP为：{}", request.getRemoteAddr()); }
+        filterChain.doFilter(request, response); } }

src/main/java/xyz/thewhitedog9487/WebAPI/Controller/IP.java

@@ -20,24 +20,21 @@ class IP {
     ResponseEntity<String> GetIP(@RequestHeader Map<String, String> HttpHeader, HttpServletRequest Request) {
         if (HttpHeader.get("CF-Connecting-IP".toLowerCase()) instanceof String IP) {
             /*
-            ↑ instanceof的模式变量一定非空
+            ↑ instanceof的如果成功完成模式匹配，那么模式变量一定非空
             相当于是：
             if (HttpHeader.get("CF-Connecting-IP" != null) {
                 String IP = HttpHeader.get("CF-Connecting-IP");
             }
             */
-            log.info("请求携带了CF-Connecting-IP头部，IP为：{}", IP);
+            return new ResponseEntity<>(IP,
+                    MultiValueMap.fromSingleValue(Map.of("Content-Type", "text/plain;charset=UTF-8")),
+                    HttpStatus.OK); }
+        else if (HttpHeader.get("X-Forwarded-For".toLowerCase()) instanceof String IP) {
+                IP = IP.split(",")[0].trim();
                 return new ResponseEntity<>(IP,
                         MultiValueMap.fromSingleValue(Map.of("Content-Type", "text/plain;charset=UTF-8")),
                         HttpStatus.OK); }
         else {
-            if (HttpHeader.get("X-Forwarded-For".toLowerCase()) instanceof String IP) {
-                IP = IP.split(",")[0].trim();
-                log.info("请求携带了X-Forwarded-For头部，IP为：{}", IP);
-                return new ResponseEntity<>(IP,
-                        MultiValueMap.fromSingleValue(Map.of("Content-Type", "text/plain;charset=UTF-8")),
-                        HttpStatus.OK); }
-            log.info("请求未携带CF-Connecting-IP和X-Forwarded-For头部，HttpServletRequest获取到的IP为：{}", Request.getRemoteAddr());
             return new ResponseEntity<>(Request.getRemoteAddr(),
                     MultiValueMap.fromSingleValue(Map.of("Content-Type", "text/plain;charset=UTF-8")),
                     HttpStatus.OK); }

src/main/java/xyz/thewhitedog9487/WebAPI/Controller/Message.java

@@ -10,7 +10,6 @@ import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.MissingRequestHeaderException;
 import org.springframework.web.bind.annotation.*;
-import org.springframework.web.context.request.WebRequest;
 
 import java.util.List;
 import java.util.Map;
@@ -61,10 +60,6 @@ class Message {
     @ExceptionHandler(MissingRequestHeaderException.class)
     ResponseEntity<ResponseData> HandleMissingHeader(MissingRequestHeaderException Exception, HttpServletRequest Request) {
         log.warn("请求缺少必要的头部信息：{}", Exception.getHeaderName());
-        if (Request.getHeader("CF-Connecting-IP") instanceof String IP) {
-            log.warn("请求携带了CF-Connecting-IP头部，IP：{}", IP);
-        } else {
-            log.warn("请求未携带CF-Connecting-IP头部，IP：{}", Request.getRemoteAddr()); }
         return new ResponseEntity<>(new ResponseData(
                 HttpStatus.BAD_REQUEST.value(),
                 "请求缺少必要的头部信息",