Android學習筆記之XML解析

這個網上有很多……

上源碼先

1. public class ChatLogContentHandler extends DefaultHandler{
2. ChatInfo info=null;
3. ArrayList<ChatInfo> infos=null;
4. String tagName=null;
6. public ChatLogContentHandler(ArrayList<ChatInfo> infos) {
7. super();
8. this.infos = infos;
9. }
11. public void startDocument() throws SAXException {
12. System.out.println("`````````````````````解析XML```````````````````````````````");
13. }
15. public void endDocument() throws SAXException {
16. System.out.println("````````解析完了！！````````");
17. }
19. public void startElement(String namespaceURI, String localName,
20. String qName, Attributes attr) throws SAXException {
21. //System.out.println("`````````````````````開始啦！！！``````````````````````````"+localName+"~~~~");
22. tagName = localName;
23. if(tagName.equals("chatinfo")){
24. info=new ChatInfo();
25. System.out.println("``````````````````````````````新建一個chatinfo對象``````````````````````````");
26. }
27. }
29. public void endElement(String namespaceURI, String localName, String qName)
30. throws SAXException {
31. if(qName.equals("chatinfo")){
32. infos.add(info);
33. System.out.println("``````````````````````````````put in``````````````````````````");
34. }
35. tagName = "";
36. }
37. public void characters(char[] ch, int start, int length)
38. throws SAXException {
39. String temp=null;
40. if (tagName.equals("name")){
41. temp = new String(ch, start, length);
42. info.setChatName(temp);
43. System.out.println("````````set name:"+temp+"````````");
44. }
45. else if (tagName.equals("time")){
46. temp = new String(ch, start, length);
47. info.setChatTime(temp);
48. System.out.println("````````set time:"+temp+"````````");
49. }
50. else if (tagName.equals("info")){
51. temp = new String(ch, start, length);
52. info.setChatString(temp);
53. System.out.println("````````set str:"+temp+"````````");
54. }
55. }
56. }

重要的是不用在一開始全部讀入，重要的是隔行解析——這也就是為什麼在前篇一定要按要求存入xml的原因。

如果xml文檔不標准，寫成一行<chatlog><chatinfo><time>12:00</time></chatinfo></chatlog>

解析是會報錯的~