// 創建xml
? import ?java.io.File;
import ?java.io.FileWriter;

import ?org.dom4j.Document;
import ?org.dom4j.DocumentHelper;
import ?org.dom4j.Element;
import ?org.dom4j.io.XMLWriter;

public ? class ?Creatxml? {

?? /**?*/ /**

?????*?建立一個XML文檔,文檔名由輸入屬性決定

?????*? @param ?filename?需建立的文件名

?????*? @return ?返回操作結果,?0表失敗,?1表成功

????? */
public ?? static ? void ?main(String?str[])
{
??createXMLFile( " c:/aaaa " );
}
???? public ? static ? int ?createXMLFile(String?filename) {

??????? /**?*/ /** ?返回操作結果,?0表失敗,?1表成功? */

??????? int ?returnValue? = ? 0 ;

??????? /**?*/ /** ?建立document對象? */

???????Document?document? = ?DocumentHelper.createDocument();

??????? /**?*/ /** ?建立XML文檔的根books? */

???????Element?booksElement? = ?document.addElement( " books " );

??????? /**?*/ /** ?加入一行注釋? */

???????booksElement.addComment( " This?is?a?test?for?dom4j,?holen,?2004.9.11 " );

??????? /**?*/ /** ?加入第一個book節點? */

???????Element?bookElement? = ?booksElement.addElement( " book " );

??????? /**?*/ /** ?加入show屬性內容? */

???????bookElement.addAttribute( " show " , " yes " );

??????? /**?*/ /** ?加入title節點? */

???????Element?titleElement? = ?bookElement.addElement( " title " );

??????? /**?*/ /** ?為title設置內容? */

???????titleElement.setText( " Dom4j?Tutorials " );

???????

??????? /**?*/ /** ?類似的完成后兩個book? */

???????bookElement? = ?booksElement.addElement( " book " );

???????bookElement.addAttribute( " show " , " yes " );

???????titleElement? = ?bookElement.addElement( " title " );

???????titleElement.setText( " Lucene?Studing " );

???????bookElement? = ?booksElement.addElement( " book " );

???????bookElement.addAttribute( " show " , " no " );

???????titleElement? = ?bookElement.addElement( " title " );

???????titleElement.setText( " Lucene?in?Action " );

???????

??????? /**?*/ /** ?加入owner節點? */

???????Element?ownerElement? = ?booksElement.addElement( " owner " );

???????ownerElement.setText( " O'Reilly " );

???????

??????? try {

??????????? /**?*/ /** ?將document中的內容寫入文件中? */

???????????XMLWriter?writer? = ? new ?XMLWriter( new ?FileWriter( new ?File(filename)));

???????????writer.write(document);

???????????writer.close();

??????????? /**?*/ /** ?執行成功,需返回1? */

???????????returnValue? = ? 1 ;

???????} catch (Exception?ex) {

???????????ex.printStackTrace();

???????}

??????????????

??????? return ?returnValue;

????}


}


// 修改xml

---------------------------------------------------------------------

import ?java.io.File;
import ?java.io.FileWriter;
import ?java.util.Iterator;
import ?java.util.List;

import ?org.dom4j.Attribute;
import ?org.dom4j.Document;
import ?org.dom4j.Element;
import ?org.dom4j.io.SAXReader;
import ?org.dom4j.io.XMLWriter;

public ? class ?UpdateXml? {

? /**?*/ /**
??*? @param ?args
?? */
? public ? static ? void ?main(String[]?args)? {
?? // ?TODO?Auto-generated?method?stub
???ModiXMLFile( " c:/aaaa " , " c:/bbb.xml " );
?}
? /**?*/ /**

?????*?修改XML文件中內容,并另存為一個新文件

?????*?重點掌握dom4j中如何添加節點,修改節點,刪除節點

?????*? @param ?filename?修改對象文件

?????*? @param ?newfilename?修改后另存為該文件

?????*? @return ?返回操作結果,?0表失敗,?1表成功

????? */

???? public ? static ? int ?ModiXMLFile(String?filename,String?newfilename) {

??????? int ?returnValue? = ? 0 ;

??????? try {

???????????SAXReader?saxReader? = ? new ?SAXReader();?

???????????Document?document? = ?saxReader.read( new ?File(filename));

??????????? /**?*/ /** ?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? */

??????????? /**?*/ /** ?先用xpath查找對象? */

???????????List?list? = ?document.selectNodes( " /books/book/@show " ?);?

???????????Iterator?iter? = ?list.iterator();

??????????? while (iter.hasNext()) {

??????????????Attribute?attribute? = ?(Attribute)iter.next();

?????????????? if (attribute.getValue().equals( " yes " )) {

??????????????????attribute.setValue( " no " );

??????????????} ???

???????????}

???????????

??????????? /**?*/ /**

????????????*?修改內容之二:?把owner項內容改為Tshinghua

????????????*?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

???????????? */

???????????list? = ?document.selectNodes( " /books/owner " ?);

???????????iter? = ?list.iterator();

??????????? if (iter.hasNext()) {

??????????????Element?ownerElement? = ?(Element)iter.next();

??????????????ownerElement.setText( " Tshinghua " );

??????????????Element?dateElement? = ?ownerElement.addElement( " date " );

??????????????dateElement.setText( " 2004-09-11 " );

??????????????dateElement.addAttribute( " type " , " Gregorian?calendar " );

???????????}

???????????

??????????? /**?*/ /** ?修改內容之三:?若title內容為Dom4j?Tutorials,則刪除該節點? */

???????????list? = ?document.selectNodes( " /books/book " );

???????????iter? = ?list.iterator();

??????????? while (iter.hasNext()) {

??????????????Element?bookElement? = ?(Element)iter.next();

??????????????Iterator?iterator? = ?bookElement.elementIterator( " title " );

??????????????? while (iterator.hasNext()) {

??????????????????Element?titleElement = (Element)iterator.next();

?????????????????? if (titleElement.getText().equals( " Dom4j?Tutorials " )) {

?????????????????????bookElement.remove(titleElement);

??????????????????}

??????????????}

???????????} ??????????

???????????

??????????? try {

?????????????? /**?*/ /** ?將document中的內容寫入文件中? */

??????????????XMLWriter?writer? = ? new ?XMLWriter( new ?FileWriter( new ?File(newfilename)));

??????????????writer.write(document);

??????????????writer.close();

?????????????? /**?*/ /** ?執行成功,需返回1? */

??????????????returnValue? = ? 1 ;

???????????} catch (Exception?ex) {

??????????????ex.printStackTrace();

???????????}

???????????

???????} catch (Exception?ex) {

???????????ex.printStackTrace();

???????}

??????? return ?returnValue;

????}


}
// 格式化xml

------------------------------------------------------------------------------------------------------------

import ?java.io.File;
import ?java.io.FileWriter;

import ?org.dom4j.Document;
import ?org.dom4j.io. * ;

public ? class ?OutXml? {

? /**?*/ /**
??*? @param ?args
?? */
? public ? static ? void ?main(String[]?args)? {
?? // ?TODO?Auto-generated?method?stub
??formatXMLFile( " c:/bbb.xml " );
?}
? /**?*/ /**

?????*?格式化XML文檔,并解決中文問題

?????*? @param ?filename

?????*? @return

????? */

???? public ? static ? int ?formatXMLFile(String?filename) {

??????? int ?returnValue? = ? 0 ;

??????? try {

???????????SAXReader?saxReader? = ? new ?SAXReader();?

???????????Document?document? = ?saxReader.read( new ?File(filename));

???????????XMLWriter?writer? = ? null ;

??????????? /**?*/ /** ?格式化輸出,類型IE瀏覽一樣? */

??????????OutputFormat?format? = ?OutputFormat.createPrettyPrint();

??????????? /**?*/ /** ?指定XML編碼? */

???????????format.setEncoding( " GBK " );

???????????writer = ? new ?XMLWriter( new ?FileWriter( new ?File(filename)),format);

???????????writer.write(document);

???????????writer.close();??????

??????????? /**?*/ /** ?執行成功,需返回1? */

???????????returnValue? = ? 1 ;?????

???????} catch (Exception?ex) {

???????????ex.printStackTrace();

???????}

??????? return ?returnValue;

????}

}