Android 创建与解析XML(五) |
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1、Dom4j概述 dom4j is an easy to use, open source library for working with XML, XPath and XSLT on the Java platform using the Java Collections Framework and with full support for DOM, SAX and JAXP. dom4j官方网址:dom4j dom4j源码下载:dom4j download 本示例中,需要导入dom4j.jar包,才能引用dom4j相关类,dom4j源码和jar包,请见本示例【源码下载】或访问 dom4j org.dom4j包,不仅包含创建xml的构建器类DocumentHelper、Element,而且还包含解析xml的解析器SAXReader、Element,包含类如下: org.dom4j org.dom4j.DocumentHelper; org.dom4j.Element; org.dom4j.io.SAXReader; org.dom4j.io.XMLWriter; org.dom4j.DocumentException; sdk源码查看路径(google code) 创建和解析xml的效果图: 2、Dom4j 创建 XML Dom4j,创建xml主要用到了org.dom4j.DocumentHelper、org.dom4j.Document、org.dom4j.io.OutputFormat、org.dom4j.io.XMLWriter 首先,DocumentHelper.createDocument(),创建 org.dom4j.Document 的实例 doc 接着,通过doc,设置xml属性doc.setXMLEncoding("utf-8")、doc.addElement("root")根节点,以及子节点等 然后,定义xml格式并输出,new XMLWriter(xmlWriter, outputFormat) Code /** Dom4j方式,创建 XML */ public String dom4jXMLCreate(){ StringWriter xmlWriter = new StringWriter(); Person []persons = new Person[3]; // 创建节点Person对象 persons[0] = new Person(1, "sunboy_2050", "http://blog.csdn.net/sunboy_2050"); persons[1] = new Person(2, "baidu", "http://www.baidu.com"); persons[2] = new Person(3, "google", "http://www.google.com"); try { org.dom4j.Document doc = DocumentHelper.createDocument(); doc.setXMLEncoding("utf-8"); org.dom4j.Element eleRoot = doc.addElement("root"); eleRoot.addAttribute("author", "homer"); eleRoot.addAttribute("date", "2012-04-25"); eleRoot.addComment("dom4j test"); int personsLen = persons.length; for(int i=0; i |
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