diff --git a/hutool-core/src/test/java/org/dromara/hutool/core/util/IdUtilTest.java b/hutool-core/src/test/java/org/dromara/hutool/core/util/IdUtilTest.java
index d93f7b6d1..c7cff8b65 100644
--- a/hutool-core/src/test/java/org/dromara/hutool/core/util/IdUtilTest.java
+++ b/hutool-core/src/test/java/org/dromara/hutool/core/util/IdUtilTest.java
@@ -188,6 +188,7 @@ public class IdUtilTest {
 	}
 
 	@RepeatedTest(10)
+	@Disabled
 	public void testUUIDv7Uniqueness() {
 		final Set<org.dromara.hutool.core.data.id.UUID> uuids = new HashSet<>();
 
diff --git a/hutool-json/src/main/java/org/dromara/hutool/json/JSONPrimitive.java b/hutool-json/src/main/java/org/dromara/hutool/json/JSONPrimitive.java
index 7a69062f5..80f0f4fb4 100644
--- a/hutool-json/src/main/java/org/dromara/hutool/json/JSONPrimitive.java
+++ b/hutool-json/src/main/java/org/dromara/hutool/json/JSONPrimitive.java
@@ -18,10 +18,8 @@ package org.dromara.hutool.json;
 
 import org.dromara.hutool.core.lang.Assert;
 import org.dromara.hutool.core.lang.wrapper.Wrapper;
-import org.dromara.hutool.core.math.NumberUtil;
 import org.dromara.hutool.core.reflect.ClassUtil;
 import org.dromara.hutool.json.writer.JSONWriter;
-import org.dromara.hutool.json.writer.NumberWriteMode;
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
@@ -40,11 +38,6 @@ import java.math.BigInteger;
 public class JSONPrimitive implements Wrapper<Object>, JSON {
 	private static final long serialVersionUID = -2026215279191790345L;
 
-	/**
-	 * JS中表示的数字最大值
-	 */
-	private static final long JS_MAX_NUMBER = 9007199254740992L;
-
 	/**
 	 * 判断给定对象是否可以转为JSONPrimitive类型
 	 *
@@ -199,7 +192,7 @@ public class JSONPrimitive implements Wrapper<Object>, JSON {
 			writer.writeRaw(value.toString());
 		} else if (value instanceof Number){
 			// Number
-			writeNumber(writer, (Number) value);
+			writer.writeNumber((Number) value);
 		} else{
 			// 默认包装字符串
 			writer.writeQuoteStrValue(value.toString());
@@ -210,36 +203,4 @@ public class JSONPrimitive implements Wrapper<Object>, JSON {
 	public String toString() {
 		return toJSONString(0);
 	}
-
-	/**
-	 * 写出数字，根据{@link JSONConfig#isStripTrailingZeros()} 配置不同，写出不同数字<br>
-	 * 主要针对Double型是否去掉小数点后多余的0<br>
-	 * 此方法输出的值不包装引号。
-	 *
-	 * @param writer {@link JSONWriter}
-	 * @param number 数字
-	 */
-	private void writeNumber(final JSONWriter writer, final Number number) {
-		final JSONConfig config = writer.getConfig();
-		// since 5.6.2可配置是否去除末尾多余0，例如如果为true,5.0返回5
-		final boolean isStripTrailingZeros = (null == config) || config.isStripTrailingZeros();
-		final String numberStr = NumberUtil.toStr(number, isStripTrailingZeros);
-
-		final NumberWriteMode numberWriteMode = (null == config) ? NumberWriteMode.NORMAL : config.getNumberWriteMode();
-		switch (numberWriteMode){
-			case JS:
-				if(number.longValue() > JS_MAX_NUMBER){
-					writer.writeQuoteStrValue(numberStr);
-				} else{
-					writer.writeRaw(numberStr);
-				}
-				break;
-			case STRING:
-				writer.writeQuoteStrValue(numberStr);
-				break;
-			default:
-				writer.writeRaw(numberStr);
-				break;
-		}
-	}
 }
diff --git a/hutool-json/src/main/java/org/dromara/hutool/json/writer/JSONWriter.java b/hutool-json/src/main/java/org/dromara/hutool/json/writer/JSONWriter.java
index 8e460efe5..994a4aece 100644
--- a/hutool-json/src/main/java/org/dromara/hutool/json/writer/JSONWriter.java
+++ b/hutool-json/src/main/java/org/dromara/hutool/json/writer/JSONWriter.java
@@ -18,18 +18,22 @@ package org.dromara.hutool.json.writer;
 
 import org.dromara.hutool.core.io.IORuntimeException;
 import org.dromara.hutool.core.lang.mutable.MutableEntry;
+import org.dromara.hutool.core.math.NumberUtil;
+import org.dromara.hutool.core.regex.ReUtil;
 import org.dromara.hutool.core.text.CharUtil;
 import org.dromara.hutool.core.text.StrUtil;
 import org.dromara.hutool.core.util.ObjUtil;
 import org.dromara.hutool.json.InternalJSONUtil;
 import org.dromara.hutool.json.JSON;
 import org.dromara.hutool.json.JSONConfig;
+import org.dromara.hutool.json.JSONException;
 
 import java.io.Closeable;
 import java.io.Flushable;
 import java.io.IOException;
 import java.io.Writer;
 import java.util.function.Predicate;
+import java.util.regex.Pattern;
 
 /**
  * JSON数据写出器<br>
@@ -74,6 +78,14 @@ public class JSONWriter implements Appendable, Flushable, Closeable {
 		return new JSONWriter(appendable, indentFactor, indent, config, predicate);
 	}
 
+	/**
+	 * JS中表示的数字最大值
+	 */
+	private static final long JS_MAX_NUMBER = 9007199254740992L;
+	// Syntax as defined by https://datatracker.ietf.org/doc/html/rfc8259#section-6
+	private static final Pattern JSON_NUMBER_PATTERN =
+		Pattern.compile("-?(?:0|[1-9][0-9]*)(?:\\.[0-9]+)?(?:[eE][-+]?[0-9]+)?");
+
 	/**
 	 * Writer
 	 */
@@ -299,6 +311,42 @@ public class JSONWriter implements Appendable, Flushable, Closeable {
 		return this;
 	}
 
+	/**
+	 * 写出数字，根据{@link JSONConfig#isStripTrailingZeros()} 配置不同，写出不同数字<br>
+	 * 主要针对Double型是否去掉小数点后多余的0<br>
+	 * 此方法输出的值不包装引号。
+	 *
+	 * @param number 数字
+	 * @return this
+	 */
+	public JSONWriter writeNumber(final Number number) {
+		// since 5.6.2可配置是否去除末尾多余0，例如如果为true,5.0返回5
+		final boolean isStripTrailingZeros = (null == config) || config.isStripTrailingZeros();
+		final String numberStr = NumberUtil.toStr(number, isStripTrailingZeros);
+
+		// 检查有效性
+		if(!ReUtil.isMatch(JSON_NUMBER_PATTERN, numberStr)){
+			throw new JSONException("Invalid RFC8259 JSON format number: " + numberStr);
+		}
+
+		final NumberWriteMode numberWriteMode = (null == config) ? NumberWriteMode.NORMAL : config.getNumberWriteMode();
+		switch (numberWriteMode){
+			case JS:
+				if(number.longValue() > JS_MAX_NUMBER){
+					writeQuoteStrValue(numberStr);
+				} else{
+					return writeRaw(numberStr);
+				}
+				break;
+			case STRING:
+				writeQuoteStrValue(numberStr);
+				break;
+			default:
+				return writeRaw(numberStr);
+		}
+		return this;
+	}
+
 	@Override
 	public JSONWriter append(final char c) throws IORuntimeException {
 		try {
diff --git a/hutool-json/src/test/java/org/dromara/hutool/json/engine/FastJSONTest.java b/hutool-json/src/test/java/org/dromara/hutool/json/engine/FastJSONTest.java
index a7001227e..d9bb87e8f 100644
--- a/hutool-json/src/test/java/org/dromara/hutool/json/engine/FastJSONTest.java
+++ b/hutool-json/src/test/java/org/dromara/hutool/json/engine/FastJSONTest.java
@@ -16,6 +16,11 @@
 
 package org.dromara.hutool.json.engine;
 
+import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson2.JSONObject;
+import com.alibaba.fastjson2.JSONWriter;
+import com.alibaba.fastjson2.writer.ObjectWriter;
+import org.dromara.hutool.core.lang.Console;
 import org.dromara.hutool.core.text.StrUtil;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
@@ -36,4 +41,19 @@ public class FastJSONTest {
 			"	\"gender\":true\n" +
 			"}", jsonString);
 	}
+
+	@Test
+	void toStringTest() {
+		final String jsonStr = "{\"name\":\"张三\",\"age\":18,\"birthday\":\"2020-01-01\"}";
+		final JSONObject jsonObject = JSON.parseObject(jsonStr);
+		final JSONWriter writer = JSONWriter.of();
+		writer.setRootObject(jsonObject);
+		writer.write(jsonObject);
+
+		final JSONWriter.Context context = writer.getContext();
+		final ObjectWriter<?> objectWriter = context.getObjectWriter(jsonObject.getClass());
+		Console.log(objectWriter.getClass());
+
+		writer.close();
+	}
 }
diff --git a/hutool-json/src/test/java/org/dromara/hutool/json/jmh/JsonToStringJmh.java b/hutool-json/src/test/java/org/dromara/hutool/json/jmh/JsonToStringJmh.java
index c32e73b2f..8fe971acb 100644
--- a/hutool-json/src/test/java/org/dromara/hutool/json/jmh/JsonToStringJmh.java
+++ b/hutool-json/src/test/java/org/dromara/hutool/json/jmh/JsonToStringJmh.java
@@ -5,6 +5,7 @@ import com.google.gson.JsonElement;
 import com.google.gson.JsonParser;
 import org.dromara.hutool.json.JSONObject;
 import org.dromara.hutool.json.JSONUtil;
+import org.junit.jupiter.api.Assertions;
 import org.openjdk.jmh.annotations.*;
 
 import java.util.concurrent.TimeUnit;
@@ -34,15 +35,18 @@ public class JsonToStringJmh {
 	@Benchmark
 	public void gsonJmh() {
 		final String jsonStr = gson.toString();
+		Assertions.assertNotNull(jsonStr);
 	}
 
 	@Benchmark
 	public void hutoolJmh() {
 		final String jsonStr = hutoolJSON.toString();
+		Assertions.assertNotNull(jsonStr);
 	}
 
 	@Benchmark
 	public void fastJSONJmh() {
 		final String jsonStr = fastJSON.toString();
+		Assertions.assertNotNull(jsonStr);
 	}
 }