摘要：@GetMapping("/downloadExcel")public void downloadExcel(HttpServletResponse response) { response.setContentType("application/force-download");// 设置强制下载 阅读全文

摘要：public class Singleton{ String name="In my heart,you are the world"; private static Singleton st=new Singleton();//饿汗模式 private Singleton(){ } public 阅读全文