使用Dom4j解析xml字符串

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

E://xml//hbm.xml中的值：
根节点：html
title:dom4j解析一个例子
username:yangrong
password:123456
result:0
banlce:1000
subID:36242519880716

XML字符串xmlString中的值：
根节点=html
result=0
username=yangrong
title=dom4j解析一个例子
subID=36242519880716
banlce=1000
password=123456