From 5d61782a6c1441723c3fc44f97b074b6635fd3a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A7=8B=E8=BE=9E=E6=9C=AA=E5=AF=92?= <545073804@qq.com>
Date: Mon, 11 Nov 2024 03:40:48 +0000
Subject: [PATCH] =?UTF-8?q?add=20=E6=96=B0=E5=A2=9E=20=E5=AF=B9=E8=B1=A1?=
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Signed-off-by: 秋辞未寒 <545073804@qq.com>
---
 .../common/core/utils/ObjectUtils.java        | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ObjectUtils.java

diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ObjectUtils.java b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ObjectUtils.java
new file mode 100644
index 000000000..e0de69a98
--- /dev/null
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/org/dromara/common/core/utils/ObjectUtils.java
@@ -0,0 +1,42 @@
+package org.dromara.common.core.utils;
+
+import cn.hutool.core.util.ObjectUtil;
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+
+import java.util.function.Function;
+
+/**
+ * 对象工具类
+ *
+ * @author 秋辞未寒
+ */
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class ObjectUtils extends ObjectUtil {
+
+    /**
+     * 如果对象不为空，则获取对象中的某个字段
+     * <p>
+     * 例：
+     * <code>
+     * <p>    public class User {
+     * <p>        private String name;
+     * <p>        // 省略 getter/setter
+     * <p>    }
+     * </code>
+     * <code>
+     * <p>    User user = userService.queryById(userId);
+     * <p>    String name = ObjectUtils.notNullGetter(user,User::getName);
+     * </code>
+     * @param obj 对象
+     * @param func 获取方法
+     * @return 对象字段
+     */
+    public static <T,E> E notNullGetter(T obj, Function<T,E> func) {
+        if (isNotNull(obj) && isNotNull(func)) {
+            return func.apply(obj);
+        }
+        return null;
+    }
+
+}