dom4j例证

2013-03-28

dom4j例子/**? * 解析包含有DB连接信息的XML文件? * 格式必须符合如下规范：? * 1. 最多三级，每级的node名

dom4j例子

/**
? * 解析包含有DB连接信息的XML文件
? * 格式必须符合如下规范：
? * 1. 最多三级，每级的node名称自定义；
? * 2. 二级节点支持节点属性，属性将被视作子节点；
? * 3. CDATA必须包含在节点中，不能单独出现。
? *
? * 示例1——三级显示：
? * <db-connections>
? *???????? <connection>
? *??????????? <name>DBTest</name>
? *??????????? <jndi></jndi>
? *??????????? <url>
? *??????????????? <![CDATA[jdbc:mysql://localhost:3306/db_test?useUnicode=true&characterEncoding=UTF8]]>
? *???????????? </url>
? *??????????? <driver>org.gjt.mm.mysql.Driver</driver>
? *???????????? <user>test</user>
? *??????????? <password>test2012</password>
? *??????????? <max-active>10</max-active>
? *??????????? <max-idle>10</max-idle>
? *??????????? <min-idle>2</min-idle>
? *??????????? <max-wait>10</max-wait>
? *??????????? <validation-query>SELECT 1+1</validation-query>
? *???????? </connection>
? * </db-connections>
? *
? * 示例2——节点属性：
? * <bookstore>
? *???????? <book category="cooking">
? *??????????? <title lang="en">Everyday Italian</title>
? *??????????? <author>Giada De Laurentiis</author>
? *??????????? <year>2005</year>
? *??????????? <price>30.00</price>
? *???????? </book>
? *
? *???????? <book category="children" title="Harry Potter" author="J K. Rowling" year="2005" price="$29.9"/>
? * </bookstore>
? *
? * @param configFile
? * @return
? * @throws Exception
? */
?public static List<Map<String, String>> parseDBXML(String configFile) throws Exception {
???? List<Map<String, String>> dbConnections = new ArrayList<Map<String, String>>();
???? InputStream is = Parser.class.getResourceAsStream(configFile);
???? SAXReader saxReader = new SAXReader();
???? Document document = saxReader.read(is);
???? Element connections = document.getRootElement();
?
???? Iterator<Element> rootIter = connections.elementIterator();
???? while (rootIter.hasNext()) {
???????? Element connection = rootIter.next();
???????? Iterator<Element> childIter = connection.elementIterator();
???????? Map<String, String> connectionInfo = new HashMap<String, String>();
???????? List<Attribute> attributes = connection.attributes();
???????? for (int i = 0; i < attributes.size(); ++i) { // 添加节点属性
???????????? connectionInfo.put(attributes.get(i).getName(), attributes.get(i).getValue());
???????? }
???????? while (childIter.hasNext()) { // 添加子节点
???????????? Element attr = childIter.next();
???????????? connectionInfo.put(attr.getName().trim(), attr.getText().trim());
???????? }
???????? dbConnections.add(connectionInfo);
???? }
?
???? return dbConnections;
?}

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dom4j例证