diff --git a/hutool-json/src/main/java/org/dromara/hutool/json/JSONObject.java b/hutool-json/src/main/java/org/dromara/hutool/json/JSONObject.java
index a1702fc8b..d58735e19 100644
--- a/hutool-json/src/main/java/org/dromara/hutool/json/JSONObject.java
+++ b/hutool-json/src/main/java/org/dromara/hutool/json/JSONObject.java
@@ -195,12 +195,13 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 
 	/**
 	 * 根据lambda的方法引用，获取
+	 *
 	 * @param func 方法引用
-	 * @param <P> 参数类型
-	 * @param <T> 返回值类型
+	 * @param <P>  参数类型
+	 * @param <T>  返回值类型
 	 * @return 获取表达式对应属性和返回的对象
 	 */
-	public <P, T> T get(final SerFunction<P, T> func){
+	public <P, T> T get(final SerFunction<P, T> func) {
 		final LambdaInfo lambdaInfo = LambdaUtil.resolve(func);
 		return get(lambdaInfo.getFieldName(), lambdaInfo.getReturnType());
 	}
@@ -314,6 +315,38 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	 * @throws JSONException 如果给定键为{@code null}或者键对应的值存在且为非JSONArray
 	 */
 	public JSONObject append(final String key, final Object value) throws JSONException {
+		return append(key, value, null);
+	}
+
+	/**
+	 * 追加值.
+	 * <ul>
+	 *     <li>如果键值对不存在或对应值为{@code null}，则value为单独值</li>
+	 *     <li>如果值是一个{@link JSONArray}，追加之</li>
+	 *     <li>如果值是一个其他值，则和旧值共同组合为一个{@link JSONArray}</li>
+	 * </ul>
+	 *
+	 * @param key       键
+	 * @param value     值
+	 * @param predicate 键值对过滤编辑器，可以通过实现此接口，完成解析前对键值对的过滤和修改操作，{@code null}表示不过滤，{@link Predicate#test(Object)}为{@code true}保留
+	 * @return this.
+	 * @throws JSONException 如果给定键为{@code null}或者键对应的值存在且为非JSONArray
+	 * @since 6.0.0
+	 */
+	public JSONObject append(String key, Object value, final Predicate<MutableEntry<String, Object>> predicate) throws JSONException {
+		// 添加前置过滤，通过MutablePair实现过滤、修改键值对等
+		if (null != predicate) {
+			final MutableEntry<String, Object> pair = new MutableEntry<>(key, value);
+			if (predicate.test(pair)) {
+				// 使用修改后的键值对
+				key = pair.getKey();
+				value = pair.getValue();
+			} else {
+				// 键值对被过滤
+				return this;
+			}
+		}
+
 		final Object object = this.getObj(key);
 		if (object == null) {
 			this.set(key, value);
@@ -396,7 +429,7 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	@Override
 	public Writer write(final Writer writer, final int indentFactor, final int indent, final Predicate<MutableEntry<Object, Object>> predicate) throws JSONException {
 		final JSONWriter jsonWriter = JSONWriter.of(writer, indentFactor, indent, config)
-				.beginObj();
+			.beginObj();
 		this.forEach((key, value) -> jsonWriter.writeField(new MutableEntry<>(key, value), predicate));
 		jsonWriter.end();
 		// 此处不关闭Writer，考虑writer后续还需要填内容
diff --git a/hutool-json/src/main/java/org/dromara/hutool/json/mapper/JSONObjectMapper.java b/hutool-json/src/main/java/org/dromara/hutool/json/mapper/JSONObjectMapper.java
index a102aa19f..762de4325 100644
--- a/hutool-json/src/main/java/org/dromara/hutool/json/mapper/JSONObjectMapper.java
+++ b/hutool-json/src/main/java/org/dromara/hutool/json/mapper/JSONObjectMapper.java
@@ -20,15 +20,10 @@ import org.dromara.hutool.core.io.IoUtil;
 import org.dromara.hutool.core.lang.mutable.MutableEntry;
 import org.dromara.hutool.core.reflect.method.MethodUtil;
 import org.dromara.hutool.core.text.StrUtil;
-import org.dromara.hutool.json.InternalJSONUtil;
-import org.dromara.hutool.json.JSONArray;
-import org.dromara.hutool.json.JSONException;
-import org.dromara.hutool.json.JSONObject;
-import org.dromara.hutool.json.JSONParser;
-import org.dromara.hutool.json.JSONTokener;
-import org.dromara.hutool.json.xml.JSONXMLUtil;
+import org.dromara.hutool.json.*;
 import org.dromara.hutool.json.serialize.GlobalSerializeMapping;
 import org.dromara.hutool.json.serialize.JSONSerializer;
+import org.dromara.hutool.json.xml.JSONXMLParser;
 import org.dromara.hutool.json.xml.ParseConfig;
 
 import java.io.InputStream;
@@ -171,7 +166,8 @@ public class JSONObjectMapper {
 		final String jsonStr = StrUtil.trim(source);
 		if (StrUtil.startWith(jsonStr, '<')) {
 			// 可能为XML
-			JSONXMLUtil.toJSONObject(jsonStr, jsonObject, ParseConfig.of());
+			//JSONXMLUtil.toJSONObject(jsonStr, jsonObject, ParseConfig.of());
+			JSONXMLParser.of(ParseConfig.of(), this.predicate).parseJSONObject(jsonStr, jsonObject);
 			return;
 		}
 		mapFromTokener(new JSONTokener(StrUtil.trim(source), jsonObject.config()), jsonObject);
diff --git a/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLParser.java b/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLParser.java
index 524829c4a..9d22f1522 100644
--- a/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLParser.java
+++ b/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLParser.java
@@ -12,6 +12,7 @@
 
 package org.dromara.hutool.json.xml;
 
+import org.dromara.hutool.core.lang.mutable.MutableEntry;
 import org.dromara.hutool.core.text.CharUtil;
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.core.xml.XmlConstants;
@@ -19,6 +20,8 @@ import org.dromara.hutool.json.JSONException;
 import org.dromara.hutool.json.JSONObject;
 import org.dromara.hutool.json.mapper.JSONValueMapper;
 
+import java.util.function.Predicate;
+
 /**
  * XML解析器，将XML解析为JSON对象
  *
@@ -27,19 +30,43 @@ import org.dromara.hutool.json.mapper.JSONValueMapper;
  */
 public class JSONXMLParser {
 
+	/**
+	 * 创建XML解析器
+	 *
+	 * @param parseConfig 解析选项
+	 * @param predicate   键值对过滤编辑器，可以通过实现此接口，完成解析前对键值对的过滤和修改操作，{@link Predicate#test(Object)}为{@code true}保留
+	 * @return JSONXMLParser
+	 */
+	public static JSONXMLParser of(final ParseConfig parseConfig, final Predicate<MutableEntry<String, Object>> predicate) {
+		return new JSONXMLParser(parseConfig, predicate);
+	}
+
+	private final ParseConfig parseConfig;
+	private final Predicate<MutableEntry<String, Object>> predicate;
+
+	/**
+	 * 构造
+	 *
+	 * @param parseConfig 解析选项
+	 * @param predicate   键值对过滤编辑器，可以通过实现此接口，完成解析前对键值对的过滤和修改操作，{@link Predicate#test(Object)}为{@code true}保留
+	 */
+	public JSONXMLParser(final ParseConfig parseConfig, final Predicate<MutableEntry<String, Object>> predicate) {
+		this.parseConfig = parseConfig;
+		this.predicate = predicate;
+	}
+
 	/**
 	 * 转换XML为JSONObject
 	 * 转换过程中一些信息可能会丢失，JSON中无法区分节点和属性，相同的节点将被处理为JSONArray。
 	 *
 	 * @param xmlStr      XML字符串
 	 * @param jo          JSONObject
-	 * @param parseConfig 解析选项
 	 * @throws JSONException 解析异常
 	 */
-	public static void parseJSONObject(final String xmlStr, final JSONObject jo, final ParseConfig parseConfig) throws JSONException {
+	public void parseJSONObject(final String xmlStr, final JSONObject jo) throws JSONException {
 		final XMLTokener x = new XMLTokener(xmlStr, jo.config());
 		while (x.more() && x.skipPast("<")) {
-			parse(x, jo, null, parseConfig, 0);
+			parse(x, jo, null, 0);
 		}
 	}
 
@@ -49,13 +76,11 @@ public class JSONXMLParser {
 	 * @param x                   {@link XMLTokener}
 	 * @param context             {@link JSONObject}
 	 * @param name                标签名，null表示从根标签开始解析
-	 * @param parseConfig         解析选项
 	 * @param currentNestingDepth 当前层级
 	 * @return {@code true}表示解析完成
 	 * @throws JSONException JSON异常
 	 */
-	private static boolean parse(final XMLTokener x, final JSONObject context, final String name,
-								 final ParseConfig parseConfig, final int currentNestingDepth) throws JSONException {
+	private boolean parse(final XMLTokener x, final JSONObject context, final String name, final int currentNestingDepth) throws JSONException {
 		final char c;
 		int i;
 		final JSONObject jsonobject;
@@ -155,9 +180,9 @@ public class JSONXMLParser {
 						throw x.syntaxError("Misshaped tag");
 					}
 					if (!jsonobject.isEmpty()) {
-						context.append(tagName, jsonobject);
+						context.append(tagName, jsonobject, this.predicate);
 					} else {
-						context.append(tagName, StrUtil.EMPTY);
+						context.append(tagName, StrUtil.EMPTY, this.predicate);
 					}
 					return false;
 
@@ -185,13 +210,13 @@ public class JSONXMLParser {
 							}
 
 							// Nested element
-							if (parse(x, jsonobject, tagName, parseConfig, currentNestingDepth + 1)) {
+							if (parse(x, jsonobject, tagName, currentNestingDepth + 1)) {
 								if (jsonobject.isEmpty()) {
-									context.append(tagName, StrUtil.EMPTY);
+									context.append(tagName, StrUtil.EMPTY, this.predicate);
 								} else if (jsonobject.size() == 1 && jsonobject.get("content") != null) {
-									context.append(tagName, jsonobject.get("content"));
+									context.append(tagName, jsonobject.get("content"), this.predicate);
 								} else {
-									context.append(tagName, jsonobject);
+									context.append(tagName, jsonobject, this.predicate);
 								}
 								return false;
 							}
diff --git a/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLUtil.java b/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLUtil.java
index 083a2a56a..3127857b5 100644
--- a/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLUtil.java
+++ b/hutool-json/src/main/java/org/dromara/hutool/json/xml/JSONXMLUtil.java
@@ -64,7 +64,7 @@ public class JSONXMLUtil {
 	 * @since 5.3.1
 	 */
 	public static JSONObject toJSONObject(final String xmlStr, final JSONObject jo, final ParseConfig parseConfig) throws JSONException {
-		JSONXMLParser.parseJSONObject(xmlStr, jo, parseConfig);
+		JSONXMLParser.of(parseConfig, null).parseJSONObject(xmlStr, jo);
 		return jo;
 	}
 
diff --git a/hutool-json/src/test/java/org/dromara/hutool/json/IssueI9DX5HTest.java b/hutool-json/src/test/java/org/dromara/hutool/json/IssueI9DX5HTest.java
new file mode 100644
index 000000000..ab89efc48
--- /dev/null
+++ b/hutool-json/src/test/java/org/dromara/hutool/json/IssueI9DX5HTest.java
@@ -0,0 +1,20 @@
+package org.dromara.hutool.json;
+
+import org.dromara.hutool.core.text.StrUtil;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class IssueI9DX5HTest {
+
+	@SuppressWarnings("MismatchedQueryAndUpdateOfCollection")
+	@Test
+	void xmlToJSONTest() {
+		final String xml = "<GoodMsg>你好</GoodMsg>";
+		final JSONObject jsonObject = new JSONObject(xml, JSONConfig.of(), entry -> {
+			entry.setKey(StrUtil.toUnderlineCase(entry.getKey()));
+			return true;
+		});
+
+		Assertions.assertEquals("{\"good_msg\":\"你好\"}", jsonObject.toString());
+	}
+}