??1
package
?dom;
??2
??3
import
?java.io.File;
??4
import
?java.io.FileWriter;
??5
import
?java.util.Iterator;
??6
import
?java.util.List;
??7
??8
import
?org.dom4j.Attribute;
??9
import
?org.dom4j.Document;
?10
import
?org.dom4j.DocumentHelper;
?11
import
?org.dom4j.Element;
?12
import
?org.dom4j.io.OutputFormat;
?13
import
?org.dom4j.io.SAXReader;
?14
import
?org.dom4j.io.XMLWriter;
?15
?16
/**?*/
/**
?17
?*?
@author
?~@_@
?18
?
*/
?19
public
?
class
?SimpleDom4j?
{
?20
?21
????
/**?*/
/**
?22
?????*?建立一個XML文檔,文檔名由輸入屬性決定
?23
?????*?
@param
?filename?需建立的文件名?
?24
?????*?
@return
?返回操作結果,?0表失敗,?1表成功????
?25
?????
*/
?26
????
public
?
int
?createXMLFile(String?filename)?
{
?27
????????
/**?*/
/**
?返回操作結果,?0表失敗,?1表成功?
*/
?28
????????
int
?returnValue?
=
?
0
;
?29
????????
/**?*/
/**
?建立document對象?
*/
?30
????????Document?document?
=
?DocumentHelper.createDocument();
?31
????????
/**?*/
/**
?建立XML文檔的根books?
*/
?32
????????Element?booksElement?
=
?document.addElement(
"
books
"
);
?33
????????
/**?*/
/**
?加入一行注釋?
*/
?34
????????booksElement.addComment(
"
This?is?a?test?for?dom4j,?holen,?2004.9.11
"
);
?35
????????
/**?*/
/**
?加入第一個book節點?
*/
?36
????????Element?bookElement?
=
?booksElement.addElement(
"
book
"
);
?37
????????
/**?*/
/**
?加入show屬性內容?
*/
?38
????????bookElement.addAttribute(
"
show
"
,?
"
yes
"
);
?39
????????
/**?*/
/**
?加入title節點?
*/
?40
????????Element?titleElement?
=
?bookElement.addElement(
"
title
"
);
?41
????????
/**?*/
/**
?為title設置內容?
*/
?42
????????titleElement.setText(
"
Dom4j?Tutorials
"
);
?43
????????
/**?*/
/**
?類似的完成后兩個book?
*/
?44
????????bookElement?
=
?booksElement.addElement(
"
book
"
);
?45
????????bookElement.addAttribute(
"
show
"
,?
"
yes
"
);
?46
????????titleElement?
=
?bookElement.addElement(
"
title
"
);
?47
????????titleElement.setText(
"
Lucene?Studing
"
);
?48
????????bookElement?
=
?booksElement.addElement(
"
book
"
);
?49
????????bookElement.addAttribute(
"
show
"
,?
"
no
"
);
?50
????????titleElement?
=
?bookElement.addElement(
"
title
"
);
?51
????????titleElement.setText(
"
Lucene?in?Action
"
);
?52
????????
/**?*/
/**
?加入owner節點?
*/
?53
????????Element?ownerElement?
=
?booksElement.addElement(
"
owner
"
);
?54
????????ownerElement.setText(
"
O'Reilly
"
);
?55
????????
try
?
{
?56
????????????
/**?*/
/**
?將document中的內容寫入文件中?
*/
?57
????????????XMLWriter?writer?
=
?
new
?XMLWriter(
new
?FileWriter(
new
?File(filename)));
?58
????????????writer.write(document);
?59
????????????writer.close();
?60
????????????
/**?*/
/**
?執行成功,需返回1?
*/
?61
????????????returnValue?
=
?
1
;
?62
????????}
?
catch
?(Exception?ex)?
{
?63
????????????ex.printStackTrace();
?64
????????}
?65
????????
return
?returnValue;
?66
????}
?67
?68
????
/**?*/
/**
?69
?????*??修改XML文件中內容,并另存為一個新文件??
?70
?????*??重點掌握dom4j中如何添加節點,修改節點,刪除節點??
?71
?????*??
@param
?filename?修改對象文件??
?72
?????*??
@param
?newfilename?修改后另存為該文件???
?73
?????*??
@return
?返回操作結果,?0表失敗,?1表成功?
?74
?????
*/
?75
????
public
?
int
?ModiXMLFile(String?filename,?String?newfilename)?
{
?76
????????
int
?returnValue?
=
?
0
;
?77
????????
try
?
{
?78
????????????SAXReader?saxReader?
=
?
new
?SAXReader();
?79
????????????Document?document?
=
?saxReader.read(
new
?File(filename));
?80
????????????
/**?*/
/**
?修改內容之一:?如果book節點中show屬性的內容為yes,則修改成no?
*/
?81
????????????
/**?*/
/**
?先用xpath查找對象?
*/
?82
????????????List?list?
=
?document.selectNodes(
"
/books/book/@show
"
);
?83
????????????Iterator?iter?
=
?list.iterator();
?84
????????????
while
?(iter.hasNext())?
{
?85
????????????????Attribute?attribute?
=
?(Attribute)?iter.next();
?86
????????????????
if
?(attribute.getValue().equals(
"
yes
"
))?
{
?87
????????????????????attribute.setValue(
"
no
"
);
?88
????????????????}
?89
????????????}
?90
????????????
/**?*/
/**
???????????
?91
?????????????*??修改內容之二:?把owner項內容改為Tshinghua?
?92
?????????????*??并在owner節點中加入date節點,date節點的內容為2004-09-11,還為date節點添加一個屬性type??????
?93
?????????????
*/
?94
????????????list?
=
?document.selectNodes(
"
/books/owner
"
);
?95
????????????iter?
=
?list.iterator();
?96
????????????
if
?(iter.hasNext())?
{
?97
????????????????Element?ownerElement?
=
?(Element)?iter.next();
?98
????????????????ownerElement.setText(
"
Tshinghua
"
);
?99
????????????????Element?dateElement?
=
?ownerElement.addElement(
"
date
"
);
100
????????????????dateElement.setText(
"
2004-09-11
"
);
101
????????????????dateElement.addAttribute(
"
type
"
,?
"
Gregorian?calendar
"
);
102
????????????}
103
????????????
/**?*/
/**
?修改內容之三:?若title內容為Dom4j?Tutorials,則刪除該節點?
*/
104
????????????list?
=
?document.selectNodes(
"
/books/book
"
);
105
????????????iter?
=
?list.iterator();
106
????????????
while
?(iter.hasNext())?
{
107
????????????????Element?bookElement?
=
?(Element)?iter.next();
108
????????????????Iterator?iterator?
=
?bookElement.elementIterator(
"
title
"
);
109
????????????????
while
?(iterator.hasNext())?
{
110
????????????????????Element?titleElement?
=
?(Element)?iterator.next();
111
????????????????????
if
?(titleElement.getText().equals(
"
Dom4j?Tutorials
"
))?
{
112
????????????????????????bookElement.remove(titleElement);
113
????????????????????}
114
????????????????}
115
????????????}
116
????????????
try
?
{
117
????????????????
/**?*/
/**
?將document中的內容寫入文件中?
*/
118
????????????????XMLWriter?writer?
=
?
new
?XMLWriter(
new
?FileWriter(
new
?File(
119
????????????????????????newfilename)));
120
????????????????writer.write(document);
121
????????????????writer.close();
122
????????????????
/**?*/
/**
?執行成功,需返回1?
*/
123
????????????????returnValue?
=
?
1
;
124
????????????}
?
catch
?(Exception?ex)?
{
125
????????????????ex.printStackTrace();
126
????????????}
127
????????}
?
catch
?(Exception?ex)?
{
128
????????????ex.printStackTrace();
129
????????}
130
????????
return
?returnValue;
131
????}
132
133
????
/**?*/
/**
134
?????*??格式化XML文檔,并解決中文問題
135
?????*??
@param
?filename
136
?????*??
@return
137
?????
*/
138
????
public
?
int
?formatXMLFile(String?filename)?
{
139
????????
int
?returnValue?
=
?
0
;
140
????????
try
?
{
141
????????????SAXReader?saxReader?
=
?
new
?SAXReader();
142
????????????Document?document?
=
?saxReader.read(
new
?File(filename));
143
????????????XMLWriter?writer?
=
?
null
;
144
????????????
/**?*/
/**
?格式化輸出,類型IE瀏覽一樣?
*/
145
????????????OutputFormat?format?
=
?OutputFormat.createPrettyPrint();
146
????????????
/**?*/
/**
?指定XML編碼?
*/
147
????????????format.setEncoding(
"
GBK
"
);
148
????????????writer?
=
?
new
?XMLWriter(
new
?FileWriter(
new
?File(filename)),?format);
149
????????????writer.write(document);
150
????????????writer.close();
151
????????????
/**?*/
/**
?執行成功,需返回1?
*/
152
????????????returnValue?
=
?
1
;
153
????????}
?
catch
?(Exception?ex)?
{
154
????????????ex.printStackTrace();
155
????????}
156
????????
return
?returnValue;
157
????}
158
}
posted on 2006-09-20 15:46
Warren.Wu 閱讀(158)
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