feat(common): add API operation logging with AOP and trace ID tracking

weblog-module-common/src/main/java/com/hanserwei/common/utils/JsonUtils.java

@@ -0,0 +1,18 @@
+package com.hanserwei.common.utils;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class JsonUtils {
+    private static final ObjectMapper INSTANCE = new ObjectMapper();
+
+    public static String toJsonString(Object obj) {
+        try {
+            return INSTANCE.writeValueAsString(obj);
+        } catch (JsonProcessingException e) {
+            return obj.toString();
+        }
+    }
+}