fix code

hutool-json/src/main/java/org/dromara/hutool/json/InternalJSONUtil.java

@@ -26,7 +26,6 @@ import org.dromara.hutool.core.reflect.TypeUtil;
 import org.dromara.hutool.core.text.CharUtil;
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.core.text.split.SplitUtil;
-import org.dromara.hutool.json.mapper.JSONValueMapper;
 import org.dromara.hutool.json.serialize.GlobalSerializeMapping;
 import org.dromara.hutool.json.serialize.JSONDeserializer;
 import org.dromara.hutool.json.serialize.JSONStringer;
@@ -50,25 +49,6 @@ public final class InternalJSONUtil {
 	private InternalJSONUtil() {
 	}
 
-	/**
-	 * 在需要的时候包装对象<br>
-	 * 包装包括：
-	 * <ul>
-	 * <li>array or collection =》 JSONArray</li>
-	 * <li>map =》 JSONObject</li>
-	 * <li>standard property (Double, String, et al) =》 原对象</li>
-	 * <li>来自于java包 =》 字符串</li>
-	 * <li>其它 =》 尝试包装为JSONObject，否则返回{@code null}</li>
-	 * </ul>
-	 *
-	 * @param object     被包装的对象
-	 * @param jsonConfig JSON选项
-	 * @return 包装后的值，null表示此值需被忽略
-	 */
-	static Object wrap(final Object object, final JSONConfig jsonConfig) {
-		return JSONValueMapper.of(jsonConfig).map(object);
-	}
-
 	/**
 	 * 值转为String，用于JSON中。规则为：
 	 * <ul>

hutool-json/src/main/java/org/dromara/hutool/json/JSONArray.java

@@ -22,6 +22,7 @@ import org.dromara.hutool.core.lang.mutable.MutableObj;
 import org.dromara.hutool.core.text.StrJoiner;
 import org.dromara.hutool.core.util.ObjUtil;
 import org.dromara.hutool.json.mapper.JSONArrayMapper;
+import org.dromara.hutool.json.mapper.JSONValueMapper;
 import org.dromara.hutool.json.writer.JSONWriter;
 
 import java.io.StringWriter;
@@ -55,7 +56,11 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 	/**
 	 * 配置项
 	 */
-	private final JSONConfig config;
+	private JSONConfig config;
+	/**
+	 * 对象转换和包装，用于将Java对象和值转换为JSON值
+	 */
+	private JSONValueMapper valueMapper;
 
 	// region Constructors
 
@@ -100,6 +105,7 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 	public JSONArray(final int initialCapacity, final JSONConfig config) {
 		this.rawList = new ArrayList<>(initialCapacity);
 		this.config = ObjUtil.defaultIfNull(config, JSONConfig::of);
+		this.valueMapper = JSONValueMapper.of(this.config);
 	}
 
 	/**
@@ -337,7 +343,7 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 	 * @return 是否加入成功
 	 */
 	public boolean add(final Object e, final Predicate<Mutable<Object>> predicate) {
-		return addRaw(InternalJSONUtil.wrap(e, this.config), predicate);
+		return addRaw(valueMapper.map(e), predicate);
 	}
 
 	@Override
@@ -378,7 +384,7 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 				continue;
 			}
 			this.add(index);
-			list.add(InternalJSONUtil.wrap(object, this.config));
+			list.add(valueMapper.map(object));
 		}
 		return rawList.addAll(index, list);
 	}
@@ -438,7 +444,7 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 		if (null == element && config.isIgnoreNullValue()) {
 			return null;
 		}
-		return this.rawList.set(index, InternalJSONUtil.wrap(element, this.config));
+		return this.rawList.set(index, valueMapper.map(element));
 	}
 
 	@Override
@@ -450,7 +456,7 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 			if (index < 0) {
 				index = 0;
 			}
-			this.rawList.add(index, InternalJSONUtil.wrap(element, this.config));
+			this.rawList.add(index, valueMapper.map(element));
 		} else {
 			// issue#3286, 如果用户指定的index太大，容易造成Java heap space错误。
 			if (!config.isIgnoreNullValue()) {
@@ -552,6 +558,8 @@ public class JSONArray implements JSON, JSONGetter<Integer>, List<Object>, Rando
 	@Override
 	public Object clone() throws CloneNotSupportedException {
 		final JSONArray clone = (JSONArray) super.clone();
+		clone.config = this.config;
+		clone.valueMapper = this.valueMapper;
 		clone.rawList = ObjUtil.clone(this.rawList);
 		return clone;
 	}

hutool-json/src/main/java/org/dromara/hutool/json/JSONObject.java

@@ -22,6 +22,7 @@ import org.dromara.hutool.core.map.MapUtil;
 import org.dromara.hutool.core.map.MapWrapper;
 import org.dromara.hutool.core.util.ObjUtil;
 import org.dromara.hutool.json.mapper.JSONObjectMapper;
+import org.dromara.hutool.json.mapper.JSONValueMapper;
 import org.dromara.hutool.json.writer.JSONWriter;
 
 import java.io.StringWriter;
@@ -55,6 +56,10 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	 * 配置项
 	 */
 	private JSONConfig config;
+	/**
+	 * 对象转换和包装，用于将Java对象和值转换为JSON值
+	 */
+	private JSONValueMapper valueMapper;
 
 	// -------------------------------------------------------------------------------------------------------------------- Constructor start
 
@@ -85,6 +90,7 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	public JSONObject(final int capacity, final JSONConfig config) {
 		super(InternalJSONUtil.createRawMap(capacity, ObjUtil.defaultIfNull(config, JSONConfig.of())));
 		this.config = ObjUtil.defaultIfNull(config, JSONConfig.of());
+		this.valueMapper = JSONValueMapper.of(this.config);
 	}
 
 	/**
@@ -440,6 +446,7 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 	public JSONObject clone() throws CloneNotSupportedException {
 		final JSONObject clone = (JSONObject) super.clone();
 		clone.config = this.config;
+		clone.valueMapper = this.valueMapper;
 		return clone;
 	}
 
@@ -479,6 +486,6 @@ public class JSONObject extends MapWrapper<String, Object> implements JSON, JSON
 		} else if (checkDuplicate && containsKey(key)) {
 			throw new JSONException("Duplicate key \"{}\"", key);
 		}
-		return super.put(key, InternalJSONUtil.wrap(value, this.config));
+		return super.put(key, this.valueMapper.map(value));
 	}
 }

hutool-json/src/main/java/org/dromara/hutool/json/mapper/JSONValueMapper.java

@@ -128,6 +128,7 @@ public class JSONValueMapper {
 	public Object map(final Object object) {
 		// null、JSON、字符串和自定义对象原样存储
 		if (null == object
+			// 当用户自定义了对象的字符串表示形式，则保留这个对象
 			|| null != InternalJSONUtil.getValueWriter(object)
 			|| object instanceof JSON //
 			|| object instanceof JSONStringer //