fix code

hutool-json/src/main/java/cn/hutool/json/JSON.java

@@ -1,7 +1,6 @@
 package cn.hutool.json;
 
 import cn.hutool.core.bean.BeanPath;
-import cn.hutool.core.reflect.TypeReference;
 
 import java.io.Serializable;
 import java.io.StringWriter;
@@ -171,16 +170,4 @@ public interface JSON extends Cloneable, Serializable {
 	default <T> T toBean(final Type type) {
 		return JSONConverter.jsonConvert(type, this, getConfig());
 	}
-
-	/**
-	 * 转为实体类对象，转换异常将被抛出
-	 *
-	 * @param <T>       Bean类型
-	 * @param reference {@link TypeReference}类型参考子类，可以获取其泛型参数中的Type类型
-	 * @return 实体类对象
-	 * @since 4.2.2
-	 */
-	default <T> T toBean(final TypeReference<T> reference) {
-		return toBean(reference.getType());
-	}
 }

hutool-json/src/main/java/cn/hutool/json/JSONUtil.java

@@ -333,6 +333,10 @@ public class JSONUtil {
 		if (obj instanceof CharSequence) {
 			return StrUtil.str((CharSequence) obj);
 		}
+
+		if(obj instanceof Number){
+			return obj.toString();
+		}
 		return toJsonStr(parse(obj, jsonConfig));
 	}
 

hutool-json/src/test/java/cn/hutool/json/JSONUtilTest.java

@@ -233,4 +233,18 @@ public class JSONUtilTest {
 		final String xmlStr = JSONUtil.toXmlStr(obj);
 		Assert.assertEquals("<key1>v1</key1><key2>a</key2><key2>b</key2><key2>c</key2>", xmlStr);
 	}
+
+	@Test
+	public void toJsonStrOfStringTest(){
+		String a = "a";
+		final String s = JSONUtil.toJsonStr(a);
+		Assert.assertEquals(a, s);
+	}
+
+	@Test
+	public void toJsonStrOfNumberTest(){
+		int a = 1;
+		final String s = JSONUtil.toJsonStr(a);
+		Assert.assertEquals("1", s);
+	}
 }