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src/main/java/com/peanut/common/utils/MapUtils.java

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+/**
+ * Copyright (c) 2016-2019 人人开源 All rights reserved.
+ *
+ * https://www.renren.io
+ *
+ * 版权所有，侵权必究！
+ */
+
+package com.peanut.common.utils;
+
+import java.util.HashMap;
+
+
+/**
+ * Map工具类
+ *
+ * @author Mark sunlightcs@gmail.com
+ */
+public class MapUtils extends HashMap<String, Object> {
+
+    @Override
+    public MapUtils put(String key, Object value) {
+        super.put(key, value);
+        return this;
+    }
+}