java 声明常量 static

final static Map<Integer,String> DISTRICT_ID_MAP=new HashMap<Integer, String>();
 static{
  DISTRICT_ID_MAP.put(1, "8a17d8f63fc6cb4a013fc77d50fb0004");
  DISTRICT_ID_MAP.put(2, "8a17d8f63fc6cb4a013fc77da1130005");
  DISTRICT_ID_MAP.put(3, "8a17d8f63fc6cb4a013fc77dd3160006");
  DISTRICT_ID_MAP.put(4, "8a17d8f63fc6cb4a013fc77e138a0007");
  DISTRICT_ID_MAP.put(5, "8a17d8f63fc6cb4a013fc77e3fb40008");
 }