修复XmlUtil.xmlToBean空节点转换失败问题

CHANGELOG.md

@@ -19,6 +19,7 @@
 * 【extra 】      修复Sftp中exists方法父目录不存在时报错（issue#I7CSQ9@Gitee）
 * 【extra 】      修复xml转json再转bean失败问题（issue#3139@Github）
 * 【poi   】      修复RowUtil传入参数错误问题（issue#3139@Github）
+* 【poi   】      修复XmlUtil.xmlToBean空节点转换失败问题（issue#3136@Github）
 
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 # 5.8.19(2023-05-27)

hutool-core/src/main/java/cn/hutool/core/convert/impl/BeanConverter.java

@@ -9,6 +9,7 @@ import cn.hutool.core.convert.ConvertException;
 import cn.hutool.core.map.MapProxy;
 import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.ReflectUtil;
+import cn.hutool.core.util.StrUtil;
 import cn.hutool.core.util.TypeUtil;
 
 import java.lang.reflect.Type;
@@ -79,6 +80,9 @@ public class BeanConverter<T> extends AbstractConverter<T> {
 		} else if(value instanceof byte[]){
 			// 尝试反序列化
 			return ObjectUtil.deserialize((byte[])value);
+		} else if(StrUtil.isEmptyIfStr(value)){
+			// issue#3136
+			return null;
 		}
 
 		throw new ConvertException("Unsupported source type: {}", value.getClass());

hutool-core/src/test/java/cn/hutool/core/util/Issue3136Test.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package cn.hutool.core.util;
+
+import lombok.Data;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Issue3136Test {
+
+	@Test
+	public void xmlToBeanTest() {
+		final String xmlStr = "<?xml version=\"1.0\" encoding=\"gbk\" ?><response><code>02</code><message></message></response>";
+		final SmsRes smsRes = XmlUtil.xmlToBean(XmlUtil.parseXml(xmlStr).getDocumentElement(), SmsRes.class);
+
+		Assert.assertEquals("02", smsRes.getCode());
+		Assert.assertNull(smsRes.getMessage());
+	}
+
+	@Data
+	static class SmsRes {
+		/**
+		 * 状态码.
+		 */
+		private String code;
+
+		/**
+		 * 消息.
+		 */
+		private Message message;
+	}
+
+	@Data
+	static class Message {
+
+		/**
+		 * 消息项.
+		 */
+		private List<MessageItem> item = new ArrayList<>();
+	}
+
+	@Data
+	static class MessageItem {
+
+		/**
+		 * 手机号.
+		 */
+		private String desmobile;
+		/**
+		 * 消息id.
+		 */
+		private String msgid;
+	}
+}