From 40bfd3940748d0dad3a27a55c937b19506d890c1 Mon Sep 17 00:00:00 2001
From: lqc <>
Date: Mon, 4 Apr 2022 22:13:17 +0800
Subject: [PATCH] =?UTF-8?q?[=E6=96=B0=E7=89=B9=E6=80=A7]=20CopyOptions?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81=E4=BB=A5Lambda=E6=96=B9=E5=BC=8F=E8=AE=BE?=
 =?UTF-8?q?=E7=BD=AE=E5=BF=BD=E7=95=A5=E5=B1=9E=E6=80=A7=E5=88=97=E8=A1=A8?=
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---
 .../hutool/core/bean/copier/CopyOptions.java  | 33 +++++++++++++++++++
 .../cn/hutool/core/bean/BeanUtilTest.java     | 16 +++++++++
 2 files changed, 49 insertions(+)

diff --git a/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java b/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
index 198e1fdcf..36ac56cec 100644
--- a/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
+++ b/hutool-core/src/main/java/cn/hutool/core/bean/copier/CopyOptions.java
@@ -1,13 +1,19 @@
 package cn.hutool.core.bean.copier;
 
 import cn.hutool.core.lang.Editor;
+import cn.hutool.core.lang.func.Func1;
+import cn.hutool.core.lang.func.LambdaUtil;
 import cn.hutool.core.util.ArrayUtil;
 
 import java.io.Serializable;
 import java.lang.reflect.Field;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.function.BiFunction;
 import java.util.function.BiPredicate;
+import java.util.stream.Collectors;
 
 /**
  * 属性拷贝选项<br>
@@ -158,6 +164,33 @@ public class CopyOptions implements Serializable {
 		return setPropertiesFilter((field, o) -> false == ArrayUtil.contains(ignoreProperties, field.getName()));
 	}
 
+	/**
+	 * 设置忽略的目标对象中属性列表，设置一个属性列表，不拷贝这些属性值，Lambda方式
+	 *
+	 * @param func1 忽略的目标对象中属性列表，设置一个属性列表，不拷贝这些属性值
+	 * @return CopyOptions
+	 */
+	public <P, R> CopyOptions setIgnoreProperties(Func1<P, R>... func1) {
+		List<String> ignoreProperties = Arrays.asList(func1)
+				.stream()
+				.map(t -> {
+					String name = LambdaUtil.getMethodName(t);
+					if (name.startsWith("is")) {
+						name = name.substring(2);
+					} else if (name.startsWith("get") || name.startsWith("set")) {
+						name = name.substring(3);
+					} else {
+						throw new RuntimeException("Error parsing property name '" + name + "'.  Didn't start with 'is', 'get' or 'set'.");
+					}
+					if (name.length() == 1 || (name.length() > 1 && !Character.isUpperCase(name.charAt(1)))) {
+						name = name.substring(0, 1).toLowerCase(Locale.ENGLISH) + name.substring(1);
+					}
+					return name;
+				})
+				.collect(Collectors.toList());
+		return setPropertiesFilter((field, o) -> false == ignoreProperties.contains(field.getName()));
+	}
+
 	/**
 	 * 设置是否忽略字段的注入错误
 	 *
diff --git a/hutool-core/src/test/java/cn/hutool/core/bean/BeanUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/bean/BeanUtilTest.java
index e86d34960..6d61c865e 100644
--- a/hutool-core/src/test/java/cn/hutool/core/bean/BeanUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/bean/BeanUtilTest.java
@@ -562,6 +562,22 @@ public class BeanUtilTest {
 		Assert.assertNull(newFood.getCode());
 	}
 
+	@Test
+	public void copyBeanPropertiesFunctionFilterTest() {
+		Person o = new Person();
+		o.setName("asd");
+		o.setAge(123);
+		o.setOpenid("asd");
+
+		CopyOptions copyOptions = CopyOptions.create().setIgnoreProperties(Person::getAge,Person::getOpenid);
+		Person n = new Person();
+		BeanUtil.copyProperties(o, n, copyOptions);
+
+		// 是否忽略拷贝属性
+		Assert.assertNotEquals(o.getAge(),n.getAge());
+		Assert.assertNotEquals(o.getOpenid(),n.getOpenid());
+	}
+
 	@Data
 	public static class Food {
 		@Alias("bookId")