diff --git a/core/src/main/java/com/alibaba/fastjson2/util/BeanUtils.java b/core/src/main/java/com/alibaba/fastjson2/util/BeanUtils.java
index bb9606c5b5..403c000ed7 100644
--- a/core/src/main/java/com/alibaba/fastjson2/util/BeanUtils.java
+++ b/core/src/main/java/com/alibaba/fastjson2/util/BeanUtils.java
@@ -185,6 +185,12 @@ public static String[] getKotlinConstructorParameters(Class<?> clazz) {
     }
 
     public static void fields(Class objectClass, Consumer<Field> fieldReaders) {
+        if (TypeUtils.isProxy(objectClass)) {
+            Class superclass = objectClass.getSuperclass();
+            fields(superclass, fieldReaders);
+            return;
+        }
+
         Field[] fields = fieldCache.get(objectClass);
         if (fields == null) {
             fields = objectClass.getFields();
diff --git a/extension/pom.xml b/extension/pom.xml
index a50cfcaaa8..1b86f35f36 100644
--- a/extension/pom.xml
+++ b/extension/pom.xml
@@ -173,6 +173,24 @@
             <artifactId>spring-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot</artifactId>
+            <version>2.7.4</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <version>2.7.4</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-test</artifactId>
+            <version>2.7.4</version>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.springframework.security</groupId>
             <artifactId>spring-security-core</artifactId>
diff --git a/core/src/test/java/com/alibaba/fastjson2/issues/Issue798.java b/extension/src/test/java/com/alibaba/fastjson2/issues/Issue798.java
similarity index 50%
rename from core/src/test/java/com/alibaba/fastjson2/issues/Issue798.java
rename to extension/src/test/java/com/alibaba/fastjson2/issues/Issue798.java
index 5344f8f89e..80cf03a26e 100644
--- a/core/src/test/java/com/alibaba/fastjson2/issues/Issue798.java
+++ b/extension/src/test/java/com/alibaba/fastjson2/issues/Issue798.java
@@ -3,19 +3,30 @@
 import com.alibaba.fastjson2.JSON;
 import lombok.Data;
 import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.ActiveProfiles;
 
 import java.util.List;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
+@SpringBootTest
+@ActiveProfiles("test")
 public class Issue798 {
+    @Autowired
+    Config configs;
+
     @Test
     public void test() {
-        Config config = new Config();
-        assertEquals("{}", JSON.toJSONString(config));
+        assertEquals("{}", JSON.toJSONString(configs));
     }
 
     @Data
+    @Configuration
+    @ConfigurationProperties(prefix = "config")
     public static class Config {
         public String[] deviceCodes;
         public String barkPushUrl;
diff --git a/extension/src/test/resources/application.yml b/extension/src/test/resources/application.yml
new file mode 100644
index 0000000000..d8ba5cf4a7
--- /dev/null
+++ b/extension/src/test/resources/application.yml
@@ -0,0 +1,9 @@
+config:
+  deviceCodes:
+    - 'M'
+    - 'Q'
+  barkPushUrl: https://baidu.com
+  barkPushToken: token
+  location: 广东 深圳 南山区
+  storeNameWhiteList:
+    - '深圳湾'