1. import java.util.HashMap;
    2. import java.util.Map;
    3. import lombok.extern.slf4j.Slf4j;
    5. /**
    6.  * @author zhouzhenyong
    7.  * @since 2018/12/22 下午10:16
    8.  */
    9. @Slf4j
    10. public final class Maps<K, V> {
    12.     private static final Integer KV_NUM = 2;
    13.     private Maps() {}
    15.     private Map<K, V> dataMap = new HashMap<>();
    17.     /**
    18.      * key-value-key-value...这种格式初始化map
    19.      *
    20.      * @param kvs key-value-key-value这种kv入参
    21.      * @return 构造的Maps结构
    22.      */
    23.     @SuppressWarnings({"rawtypes", "unchecked"})
    24.     public static Maps of(Object... kvs) {
    25.         if (kvs.length % KV_NUM != 0) {
    26.             log.error("Maps.of的参数需要是key-value-key-value...这种格式");
    27.             return new Maps();
    28.         }
    30.         Maps maps = new Maps();
    31.         for (int i = 0; i < kvs.length; i += KV_NUM) {
    32.             if (null == kvs[i]) {
    33.                 log.error("map的key不可以为null");
    34.                 return maps;
    35.             }
    36.             maps.put(kvs[i], kvs[i + 1]);
    37.         }
    38.         return maps;
    39.     }
    41.     public Maps<K, V> put(Map<K, V> map) {
    42.         dataMap.putAll(map);
    43.         return this;
    44.     }
    46.     public Maps<K, V> put(K key, V value) {
    47.         dataMap.put(key, value);
    48.         return this;
    49.     }
    51.     public Maps<K, V> add(Map<K, V> map) {
    52.         dataMap.putAll(map);
    53.         return this;
    54.     }
    56.     public Maps<K, V> add(K key, V value) {
    57.         dataMap.put(key, value);
    58.         return this;
    59.     }
    61.     public Map<K, V> build() {
    62.         return dataMap;
    63.     }
    64. }