1、Oracle 官方說明
https://docs.oracle.com/javase/8/docs/technotes/guides/language/static-import.html
2、Stackoverflow 討論
https://stackoverflow.com/questions/420791/what-is-a-good-use-case-for-static-import-of-methods
https://docs.oracle.com/javase/8/docs/technotes/guides/language/static-import.html
https://stackoverflow.com/questions/420791/what-is-a-good-use-case-for-static-import-of-methods
ThreadLocal的使用,,,實際上相當於維護了一個Map,其中以鍵值對的形式,存儲了某一個數據被多個線程訪問所對應的值。當然這個數據只能有
JSONArray序列化日期最初用到, 這個是全局設置,會有風險。 String[] dateFormats = new String[] {"yyyyMMdd"}; JSONUtils.getM