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  1 //先加入dom4j.jar包    2 import java.util.HashMap;   3 import java.util.Iterator;   4 import java.util.Map;   5    6 import org.dom4j.Document;   7 import org.dom4j.DocumentException;   8 import org.dom4j.DocumentHelper;   9 import org.dom4j.Element;  10   11 /**     12 * @Title: TestDom4j.java  13 * @Package   14 * @Description: 解析xml字符串  15 * @author 无处不在  16 * @date 2012-11-20 下午05:14:05  17 * @version V1.0     18 */  19 public class TestDom4j {  20   21     public void readStringXml(String xml) {  22         Document doc = null;  23         try {  24   25             // 读取并解析XML文档  26             // SAXReader就是一个管道，用一个流的方式，把xml文件读出来  27             //   28             // SAXReader reader = new SAXReader(); //User.hbm.xml表示你要解析的xml文档  29             // Document document = reader.read(new File("User.hbm.xml"));  30             // 下面的是通过解析xml字符串的  31             doc = DocumentHelper.parseText(xml); // 将字符串转为XML  32   33             Element rootElt = doc.getRootElement(); // 获取根节点  34             System.out.println("根节点：" + rootElt.getName()); // 拿到根节点的名称  35   36             Iterator iter = rootElt.elementIterator("head"); // 获取根节点下的子节点head  37   38             // 遍历head节点  39             while (iter.hasNext()) {  40   41                 Element recordEle = (Element) iter.next();  42                 String title = recordEle.elementTextTrim("title"); // 拿到head节点下的子节点title值  43                 System.out.println("title:" + title);  44   45                 Iterator iters = recordEle.elementIterator("script"); // 获取子节点head下的子节点script  46   47                 // 遍历Header节点下的Response节点  48                 while (iters.hasNext()) {  49   50                     Element itemEle = (Element) iters.next();  51   52                     String username = itemEle.elementTextTrim("username"); // 拿到head下的子节点script下的字节点username的值  53                     String password = itemEle.elementTextTrim("password");  54   55                     System.out.println("username:" + username);  56                     System.out.println("password:" + password);  57                 }  58             }  59             Iterator iterss = rootElt.elementIterator("body"); ///获取根节点下的子节点body  60             // 遍历body节点  61             while (iterss.hasNext()) {  62   63                 Element recordEless = (Element) iterss.next();  64                 String result = recordEless.elementTextTrim("result"); // 拿到body节点下的子节点result值  65                 System.out.println("result:" + result);  66   67                 Iterator itersElIterator = recordEless.elementIterator("form"); // 获取子节点body下的子节点form  68                 // 遍历Header节点下的Response节点  69                 while (itersElIterator.hasNext()) {  70   71                     Element itemEle = (Element) itersElIterator.next();  72   73                     String banlce = itemEle.elementTextTrim("banlce"); // 拿到body下的子节点form下的字节点banlce的值  74                     String subID = itemEle.elementTextTrim("subID");  75   76                     System.out.println("banlce:" + banlce);  77                     System.out.println("subID:" + subID);  78                 }  79             }  80         } catch (DocumentException e) {  81             e.printStackTrace();  82   83         } catch (Exception e) {  84             e.printStackTrace();  85   86         }  87     }  88   89     /**  90      * @description 将xml字符串转换成map  91      * @param xml  92      * @return Map  93      */  94     public static Map readStringXmlOut(String xml) {  95         Map map = new HashMap();  96         Document doc = null;  97         try {  98             // 将字符串转为XML  99             doc = DocumentHelper.parseText(xml);  100             // 获取根节点 101             Element rootElt = doc.getRootElement();  102             // 拿到根节点的名称 103             System.out.println("根节点：" + rootElt.getName());  104  105             // 获取根节点下的子节点head 106             Iterator iter = rootElt.elementIterator("head");  107             // 遍历head节点 108             while (iter.hasNext()) { 109  110                 Element recordEle = (Element) iter.next(); 111                 // 拿到head节点下的子节点title值 112                 String title = recordEle.elementTextTrim("title");  113                 System.out.println("title:" + title); 114                 map.put("title", title); 115                 // 获取子节点head下的子节点script 116                 Iterator iters = recordEle.elementIterator("script");  117                 // 遍历Header节点下的Response节点 118                 while (iters.hasNext()) { 119                     Element itemEle = (Element) iters.next(); 120                     // 拿到head下的子节点script下的字节点username的值 121                     String username = itemEle.elementTextTrim("username");  122                     String password = itemEle.elementTextTrim("password"); 123  124                     System.out.println("username:" + username); 125                     System.out.println("password:" + password); 126                     map.put("username", username); 127                     map.put("password", password); 128                 } 129             } 130  131             //获取根节点下的子节点body 132             Iterator iterss = rootElt.elementIterator("body");  133             // 遍历body节点 134             while (iterss.hasNext()) { 135                 Element recordEless = (Element) iterss.next(); 136                 // 拿到body节点下的子节点result值 137                 String result = recordEless.elementTextTrim("result");  138                 System.out.println("result:" + result); 139                 // 获取子节点body下的子节点form 140                 Iterator itersElIterator = recordEless.elementIterator("form");  141                 // 遍历Header节点下的Response节点 142                 while (itersElIterator.hasNext()) { 143                     Element itemEle = (Element) itersElIterator.next(); 144                     // 拿到body下的子节点form下的字节点banlce的值 145                     String banlce = itemEle.elementTextTrim("banlce");  146                     String subID = itemEle.elementTextTrim("subID"); 147  148                     System.out.println("banlce:" + banlce); 149                     System.out.println("subID:" + subID); 150                     map.put("result", result); 151                     map.put("banlce", banlce); 152                     map.put("subID", subID); 153                 } 154             } 155         } catch (DocumentException e) { 156             e.printStackTrace(); 157         } catch (Exception e) { 158             e.printStackTrace(); 159         } 160         return map; 161     } 162  163     public static void main(String[] args) { 164  165         // 下面是需要解析的xml字符串例子 166         String xmlString = "<html>" + "<head>" + "<title>dom4j解析一个例子</title>" 167                 + "<script>" + "<username>yangrong</username>" 168                 + "<password>123456</password>" + "</script>" + "</head>" 169                 + "<body>" + "<result>0</result>" + "<form>" 170                 + "<banlce>1000</banlce>" + "<subID>36242519880716</subID>" 171                 + "</form>" + "</body>" + "</html>"; 172  173         /* 174          * Test2 test = new Test2(); test.readStringXml(xmlString); 175          */ 176         Map map = readStringXmlOut(xmlString); 177         Iterator iters = map.keySet().iterator(); 178         while (iters.hasNext()) { 179             String key = iters.next().toString(); // 拿到键 180             String val = map.get(key).toString(); // 拿到值 181             System.out.println(key + "=" + val); 182         } 183     } 184  185 }

 1 /**  2  * 解析包含有DB连接信息的XML文件  3  * 格式必须符合如下规范：  4  * 1. 最多三级，每级的node名称自定义；  5  * 2. 二级节点支持节点属性，属性将被视作子节点；  6  * 3. CDATA必须包含在节点中，不能单独出现。  7  *  8  * 示例1——三级显示：  9  * <db-connections> 10  *         <connection> 11  *            <name>DBTest</name> 12  *            <jndi></jndi> 13  *            <url> 14  *                <![CDATA[jdbc:mysql://localhost:3306/db_test?useUnicode=true&characterEncoding=UTF8]]> 15  *             </url> 16  *            <driver>org.gjt.mm.mysql.Driver</driver> 17  *             <user>test</user> 18  *            <password>test2012</password> 19  *            <max-active>10</max-active> 20  *            <max-idle>10</max-idle> 21  *            <min-idle>2</min-idle> 22  *            <max-wait>10</max-wait> 23  *            <validation-query>SELECT 1+1</validation-query> 24  *         </connection> 25  * </db-connections> 26  * 27  * 示例2——节点属性： 28  * <bookstore> 29  *         <book category="cooking"> 30  *            <title lang="en">Everyday Italian</title> 31  *            <author>Giada De Laurentiis</author> 32  *            <year>2005</year> 33  *            <price>30.00</price> 34  *         </book> 35  * 36  *         <book category="children" title="Harry Potter" author="J K. Rowling" year="2005" price="$29.9"/> 37  * </bookstore> 38  * 39  * @param configFile 40  * @return 41  * @throws Exception 42  */ 43 public static List<Map<String, String>> parseDBXML(String configFile) throws Exception { 44     List<Map<String, String>> dbConnections = new ArrayList<Map<String, String>>(); 45     InputStream is = Parser.class.getResourceAsStream(configFile); 46     SAXReader saxReader = new SAXReader(); 47     Document document = saxReader.read(is); 48     Element connections = document.getRootElement(); 49  50     Iterator<Element> rootIter = connections.elementIterator(); 51     while (rootIter.hasNext()) { 52         Element connection = rootIter.next(); 53         Iterator<Element> childIter = connection.elementIterator(); 54         Map<String, String> connectionInfo = new HashMap<String, String>(); 55         List<Attribute> attributes = connection.attributes(); 56         for (int i = 0; i < attributes.size(); ++i) { // 添加节点属性 57             connectionInfo.put(attributes.get(i).getName(), attributes.get(i).getValue()); 58         } 59         while (childIter.hasNext()) { // 添加子节点 60             Element attr = childIter.next(); 61             connectionInfo.put(attr.getName().trim(), attr.getText().trim()); 62         } 63         dbConnections.add(connectionInfo); 64     } 65  66     return dbConnections; 67 }