angang_jonny的专栏

1、 定义函数类： public class SecurityFunction { //方法需要是static类型的 public static String testJstlFunction(String str) { System.out.println("执行一些操作"+str); return "hello jstl"...

1.加载xml文件获取document对象。 public static Document load(String filename) { Document document = null; try { DocumentBuilderFactory factory = DocumentBuilderFactory ...

1.拷贝文件   private void copyFile(File source, File target) { FileInputStream inFile = null; FileOutputStream outFile = null; try { inFile = new FileInp...