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选择合适的java脚本语言--如果你正考虑在java应用中集成脚本解释器，最难得是决定使用那种摘要：脚本语言已经向java开发者证明了它的价值。它让客户实现应用功能的扩展和界面的个性化，从而程序的价值得以提升。另外，它们可以显著的简化程序开发者的设计任务，通过实现动态定义、装载和评估。对于开发人员，集成一种或多种脚本语言的任务是简单的，从越来越长的可选列表中选出一个确实困难的。......
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什么是io io（input/output）是计算机输出/输出的接口。java的核心库java.io提供了全面的io接口，包括：文件读写，标准设备输出等等。java中io是以流为基础进行输入输出的，所有数据被串行化写入输出流，或者从输入流读入。此外，java也对块传输提供支持，在核心库java.nio中采用的便是块io。关于nio我们在后面还有专门的讨论。 流io的好处是......
JavaXML教程(附:源程序)上一页 ... /* * (c) copyright ibm corp. 1999 all rights reserved. * * us government users restricted rights use, duplication or * disclosure restricted by gsa adp schedule contract with ibm corp. * * the program is provided "as is" without any warranty express or * implied, including the warranty of non-infringement and the implied * warranties of merchantibility and fitness for a particular purpose. * ibm will not be liable for any damages suffered by you as a result * of using the program. in no event will ibm be liable for any * special, indirect or consequential damages or lost profits even if * ibm has been advised of the possibility of their occurrence. ibm * will not be liable for any third party claims against you. */ import java.io.outputstreamwriter; import java.io.printwriter; import java.io.unsupportedencodingexception; import org.w3c.dom.attr; import org.w3c.dom.document; import org.w3c.dom.namednodemap; import org.w3c.dom.node; import org.w3c.dom.nodelist; import com.ibm.xml.parsers.*; /** * domone.java * illustrates how to go through a dom tree. */ public class domone { public void parseandprint(string uri) { document doc = null; try { domparser parser = new domparser(); parser.parse(uri); doc = parser.getdocument(); } catch (exception e) { system.err.println("sorry, an error occurred: " + e); } // we`ve parsed the document now, so let`s print it. if (doc != null) printdomtree(doc); } /** prints the specified node, then prints all of its children. */ public void printdomtree(node node) { int type = node.getnodetype(); switch (type) { // print the document element case node.document_node: { system.out.println("<?xml version="1.0" ?>"); printdomtree(((document)node).getdocumentelement()); break; } // print element with attributes case node.element_node: { system.out.print("<"); system.out.print(node.getnodename()); namednodemap attrs = node.getattributes(); for (int i = 0; i < attrs.getlength(); i++) { node attr = attrs.item(i); system.out.print(" " + attr.getnodename() + "="" + attr.getnodevalue() + """);&nb...
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//articleconn.jsp 数据库连接文件,几乎被每个页面包含,有的页面去掉获得session,修改一下这个代码,很简单<%@ page contenttype="text/html;charset=big5"%><%@ page import="java.sql.*"%> <% request.se......
