JAVA¶ÔXMLµÄ¼¸ÖÖ½âÎö·½·¨½²½â£¨JDOM£©
Ϊ¼õÉÙDOM¡¢SAXµÄ±àÂëÁ¿£¬³öÏÖÁËJDOM£»
Óŵ㣺¼«´ó¼õÉÙÁË´úÂëÁ¿¡£
ʹÓó¡ºÏ£ºÒªÊµÏֵŦÄܼòµ¥£¬Èç½âÎö¡¢´´½¨µÈ£¬µ«Ôڵײ㣬JDOM»¹ÊÇʹÓÃSAX£¨×î³£Óã©¡¢DOM¡¢XananÎĵµ¡£
±ØÐëµÃÏÂÔØjdom.jarÎļþ
package xml.jdom;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;
import xml.XmlDocument;
public class JDomDemo implements XmlDocument {
public static void main(String[] args){
JDomDemo jDomeDemo = new JDomDemo();
jDomeDemo.createXml("Test2.xml");
jDomeDemo.parserXml("Test2.xml");
}
@Override
public void createXml(String fileName) {
Element root = new Element("employees");
Document document = new Document(root);
Element employee = new Element("employee");
root.addContent(employee);
Element name = new Element("name");
name.setText("ddvip");
employee.addContent(name);
Element sex = new Element("sex");
sex.setText("m");
employee.addContent(sex);
Element age = new Element("age");
age.setText("23");
employee.addContent(age);
XMLOutputter XMLOut = new XMLOutputter();
try {
XMLOut.output(document, new FileOutputStream(fileName));
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void parserXml(String fileName) {
SAXBuilder builder = new SAXBuilder(false);
try {
Document document = builder.build(fileName);
Element employees = document.getRootElement
Ïà¹ØÎĵµ£º
1¡¢
PermGen spaceµÄÈ«³ÆÊÇPermanent Generation space,ÊÇÖ¸ÄÚ´æµÄÓÀ¾Ã±£´æÇøÓòOutOfMemoryError: PermGen space´Ó±íÃæÉÏ¿´¾ÍÊÇÄÚ´æÒæ³ö£¬½â¾ö·½·¨Ò²Ò»¶¨ÊǼӴóÄڴ档˵˵Ϊʲô»áÄÚ´æÒæ³ö£ºÕâÒ»²¿·ÖÓÃÓÚ´æ·ÅClassºÍMetaµÄÐÅÏ¢,ClassÔÚ±» LoadµÄʱºò±»·ÅÈëPermGen spaceÇøÓò£¬ËüºÍºÍ´æ·ÅInstanceµÄHeapÇøÓò²»Í¬,GC(Garba ......
http://www.goceanedu.com.cn/Read_1855.htm
ÔÚ°Ñjdk°²×°µ½¼ÆËã»úÖÐÖ®ºó£¬ÎÒÃÇÀ´½øÐÐÉèÖÃʹjava»·¾³Äܹ»Ê¹Óá£
Ê×ÏÈÓÒ¼üµãÎҵĵçÄÔ¡£´ò¿ªÊôÐÔ¡£È»ºóÑ¡Ôñ“¸ß¼¶”ÀïÃæµÄ“»·¾³±äÁ¿”£¬ÔÚеĴò¿ª½çÃæÖеÄϵͳ±äÁ¿ÐèÒªÉèÖÃÈý¸öÊôÐÔ“JAVA_HOME”¡¢
“path”¡¢“classpat ......
(1) ÀàÃûÊ××ÖĸӦ¸Ã´óд¡£×ֶΡ¢·½·¨ÒÔ¼°¶ÔÏ󣨾ä±ú£©µÄÊ××ÖĸӦСд¡£¶ÔÓÚËùÓбêʶ·û£¬ÆäÖаüº¬µÄËùÓе¥´Ê¶¼Ó¦½ô¿¿ÔÚÒ»Æð£¬¶øÇÒ´óдÖм䵥´ÊµÄÊ××Öĸ¡£ÀýÈ磺
ThisIsAClassName
thisIsMethodOrFieldName
ÈôÔÚ¶¨ÒåÖгöÏÖÁ˳£Êý³õʼ»¯×Ö·û£¬Ôò´óдstatic final»ù±¾ÀàÐͱêʶ·ûÖеÄËùÓÐ×Öĸ¡£ÕâÑù±ã¿É±êÖ¾³öËüÃÇÊôÓÚ±àÒëÆÚµ ......
javaÖÐ
StringºÍintÖ®¼äµÄÏ໥ת»¯
£¨1£©int i = Integer([String]); »ò
int i = Integer.parseInt([String],[int index]);
£¨2£©int i = Integer.valueOf([String]).intValue();
intÀàÐÍת»¯ÎªString
£¨1£©String s = String.valueOf([int]);
£¨2£©String s = Integer.toString([int]);
......

ÔúʵµÄJava»ù´¡£»ÊìϤJavaºËÐÄAPI£»
¾«Í¨J2EE¿ª·¢£»ÊìÁ·ÕÆÎÕEJB£»
¾«Í¨Java Web¿ª·¢£»ÊìÁ·ÕÆÎÕServlet/JSP£»
¾«Í¨Java XML¿ª·¢£»
¿ò¼Ü£º
¾«Í¨Spring¡¢Struts¡¢Hibernate¡¢JSFµÈ¿ò¼Ü£»
¾«Í¨axis1.0-axis2.0¡¢XFire¡¢CXFµÈ¿ò¼Ü£»
¹æ·¶£º
¾«Í¨Web Service£»
¾«Í¨Web2.0 £»
¹¤¾ß£º
......