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 ×îÐÂÎÄÕ : xml

PropertySet½Ì³Ì 2.Memory¡¢map¡¢XML·½Ê½

¡¡¡¡inkfishÔ­´´£¬ÇëÎðÉÌÒµÐÔÖÊתÔØ£¬×ªÔØÇë×¢Ã÷À´Ô´£¨http://blog.csdn.net/inkfish
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¡¡¡¡PropertySet£¨À´Ô´£ºhttp://blog.csdn.net/inkfish£©
ÊÇÓÉopensymphony×éÖ¯¿ª·¢µÄµÄÒ»¸ö¿ªÔ´ÏîÄ¿£¬µ«ÊÇÄǸöÏîÄ¿ÎĵµÉÙ£¬³¤Ê±¼äûÓиüУ¬¹Ù·½Îĵµ´íÎóÆæ¶à£¬ËùÒÔÏÖÔÚÔÚÏîÄ¿ÖÐʹÓò¢²»¹ã·º¡£µ«Õâ²¢²»·Á°­PropertySet³ÉΪһ¸öÓÅÐãµÄkey-value³Ö¾Ã»¯Ä£¿é£¬µ±Ç°£¬PropertySet¿ÉÒÔ˵ÒѾ­¹»Óá£ÕâÀïÎÒÕûÀíÊéдÁËPropertySetµÄÎĵµ¡££¨À´Ô´£ºhttp://blog.csdn.net/inkfish£©
¡¡¡¡PropertySet×îÈÝÒ×ʹÓúÍÉÏÊÖµÄÊÇmemory·½Ê½£¬×î³£ÓõÄÊÇxml¡¢JDBC£¬ÁíÍâHibernate¡¢EJBÊǽϳ£Óõķ½Ê½¡£ÕâÀïÑ¡Ôñ½éÉÜmemory¡¢map¡¢XML·½Ê½¡££¨À´Ô´£ºhttp://blog.csdn.net/inkfish£©
1.Demo
PropertySetDemo.java
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.HashMap;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import com.opensymphony.module.propertyset.PropertySet;
import com.opensymphony.module.propertyset.PropertySetManager;
import com.opensymphony.module.p ......

Jdbc,Jdo,XML·½Ãæ


1¡¢Class.forNameµÄ×÷ÓÃ?ΪʲôҪÓÃ?
´ð£ºµ÷Óø÷ÃÎÊ·µ»ØÒ»¸öÒÔ×Ö·û´®Ö¸¶¨ÀàÃûµÄÀàµÄ¶ÔÏó¡£
2¡¢JdoÊÇʲô?
´ð£ºJDOÊÇJava¶ÔÏó³Ö¾Ã»¯µÄеĹ淶£¬Îªjava data objectµÄ¼ò³Æ,Ò²ÊÇÒ»¸öÓÃÓÚ´æȡijÖÖÊý¾Ý²Ö¿âÖеĶÔÏóµÄ±ê×¼»¯API¡£JDOÌṩÁË͸Ã÷µÄ¶ÔÏó´æ´¢£¬Òò´Ë¶Ô¿ª·¢ÈËÔ±À´Ëµ£¬´æ´¢Êý¾Ý¶ÔÏóÍêÈ«²»ÐèÒª¶îÍâµÄ´úÂ루ÈçJDBC APIµÄʹÓã©¡£ÕâЩ·±ËöµÄÀýÐй¤×÷ÒѾ­×ªÒƵ½JDO²úÆ·ÌṩÉÌÉíÉÏ£¬Ê¹¿ª·¢ÈËÔ±½âÍѳöÀ´£¬´Ó¶ø¼¯ÖÐʱ¼äºÍ¾«Á¦ÔÚÒµÎñÂß¼­ÉÏ¡£ÁíÍ⣬JDOºÜÁé»î£¬ÒòΪËü¿ÉÒÔÔÚÈκÎÊý¾Ýµ×²ãÉÏÔËÐС£JDBCÖ»ÊÇÃæÏò¹ØϵÊý¾Ý¿â£¨RDBMS)JDO¸üͨÓã¬Ìṩµ½ÈκÎÊý¾Ýµ×²ãµÄ´æ´¢¹¦ÄÜ£¬±ÈÈç¹ØϵÊý¾Ý¿â¡¢Îļþ¡¢XMLÒÔ¼°¶ÔÏóÊý¾Ý¿â£¨ODBMS£©µÈµÈ£¬Ê¹µÃÓ¦ÓÿÉÒÆÖ²ÐÔ¸üÇ¿¡£
3¡¢Ëµ³öÊý¾ÝÁ¬½Ó³ØµÄ¹¤×÷»úÖÆÊÇʲô?
´ð£ºJ2EE·þÎñÆ÷Æô¶¯Ê±»á½¨Á¢Ò»¶¨ÊýÁ¿µÄ³ØÁ¬½Ó£¬²¢Ò»Ö±Î¬³Ö²»ÉÙÓÚ´ËÊýÄ¿µÄ³ØÁ¬½Ó¡£¿Í»§¶Ë³ÌÐòÐèÒªÁ¬½Óʱ£¬³ØÇý¶¯³ÌÐò»á·µ»ØÒ»¸öδʹÓõijØÁ¬½Ó²¢½«Æä±í¼ÇΪæ¡£Èç¹ûµ±Ç°Ã»ÓпÕÏÐÁ¬½Ó£¬³ØÇý¶¯³ÌÐò¾Íн¨Ò»¶¨ÊýÁ¿µÄÁ¬½Ó£¬Ð½¨Á¬½ÓµÄÊýÁ¿ÓÐÅäÖòÎÊý¾ö¶¨¡£µ±Ê¹ÓõijØÁ¬½Óµ÷ÓÃÍê³Éºó£¬³ØÇý¶¯³ÌÐò½«´ËÁ¬½Ó±í¼ÇΪ¿ÕÏУ¬ÆäËûµ÷ÓþͿÉÒÔʹÓÃÕâ¸öÁ¬½Ó¡£
4¡¢JdoÊÇʲô? 
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dom4jÓÃXPath½âÎöxml Óöµ½µÄÎÊÌâ

ʹÓÃdom4j½âÎöXMLʱ£¬Òª¿ìËÙ»ñȡij¸ö½ÚµãµÄÊý¾Ý£¬Ê¹ÓÃXPathÊǸö²»´íµÄ·½·¨£¬dom4jµÄ¿ìËÙÊÖ²áÀïÒ²½¨ÒéʹÓÃÕâÖÖ·½Ê½£¬±êÌⶼдµÄÕâôÀ«Æø£ºPowerful Navigation with XPath£¬ºÇºÇ¡£
·½·¨ÊÇʹÓÃDocumentµÄselectNodes(String XPath)·½·¨£¬´úÂëд·¨£º
List l = doc.selectNodes("//COLS/COL1");
Ö´ÐÐʱȴÅ׳öÒÔÏÂÒì³££º
Exception in thread "main" java.lang.NoClassDefFoundError: org/jaxen/JaxenException
at org.dom4j.DocumentFactory.createXPath(DocumentFactory.java:230)
at org.dom4j.tree.AbstractNode.createXPath(AbstractNode.java:207)
at org.dom4j.tree.AbstractNode.selectNodes(AbstractNode.java:164)
ÕâôºÃÓõķ½·¨ÔõôÄÜÅ×Òì³£ÄØ£¬Ò»Â·¸ú×Ù¹ýÈ¥¿´£¬¾¹È»ÊÇ“List l = doc.selectNodes("//COLS/COL1");”Õâ¾ä±¨´í£¬²éÁËһϲÅÖªµÀ£¬²»¹âÒªÓÐdom4jÕâ¸ö°ü£¬»¹ÒªÓÐjaxen°ü£º<jaxen-1.1-beta-6.jar>-238 KB£¬ÕâÓ¦¸ÃÊÇdom4jµÄ»ù´¡°ü£¬ÔÚdom4jµÄzip°üµÄlibĿ¼Àï¿ÉÒÔÕÒµ½¡£¼´Ê¹ÓÃÕâ¸ö·½·¨ÐèÒªÒÔÏÂÁ½¸ö°ü£º
dom4j-1.6.1.jar£­306 KB
jaxen-1.1-beta-6.jar£­238 KB ......

Delphi²Ù×÷XMLµÄ¼¼ÇÉ

  Delphi²Ù×÷XMLÊǺܷ½±ãµÄ£¬Ö÷ÒªÓÐÁ½ÖÖ·½·¨£»
     1.ÓÃTClientDataSet²Ù×÷XML£»TClientDataSetÊǸöºÃ¶«Î÷£¬ÓÃËü²Ù×÷XMLÊǺܼòµ¥µÄÊ£¬²»¹ýȱµãÊÇÖ»ÄܲÙ×÷¹Ì¶¨¸ñʽµÄ XML£¬ËüÊʺϲÙ×÷±í½á¹¹µÄÊý¾Ý£¬Èç¹ûÄãÐèÒª°ÑÊý¾Ý±íµ¼³ö³ÉXMLÄÇÓÃTClientDataSetÊǸöºÃÖ÷Ò⣬±ÈÈçÏÂÃæÊÇÒ»¸öÊý¾Ý¼¯µ¼³ö³ÉXMLµÄ·½ ·¨£º
procedure ExportToXML(SrcDataSet:TDataSet;const XMLFileName:String);
var tmpCds:TClientDataSet;
    i:integer;
    NewField:TFieldDef;
begin
SrcDataSet.DisableControls;
tmpCds:=TClientDataSet.Create(nil);
try
    for i:=0 to SrcDataSet.FieldCount-1 do
    begin
      NewField:=tmpCds.FieldDefs.AddFieldDef;
      NewField.Name:=SrcDataSet.Fields[i].FieldName;
      NewField.DataType:=SrcDataSet.fields[i].DataType;
      NewField.Size:=SrcDataSet.Fields[i].Size;
    end;
    tmpCds.Cr ......

Delphi²Ù×÷XMLµÄ¼¼ÇÉ

  Delphi²Ù×÷XMLÊǺܷ½±ãµÄ£¬Ö÷ÒªÓÐÁ½ÖÖ·½·¨£»
     1.ÓÃTClientDataSet²Ù×÷XML£»TClientDataSetÊǸöºÃ¶«Î÷£¬ÓÃËü²Ù×÷XMLÊǺܼòµ¥µÄÊ£¬²»¹ýȱµãÊÇÖ»ÄܲÙ×÷¹Ì¶¨¸ñʽµÄ XML£¬ËüÊʺϲÙ×÷±í½á¹¹µÄÊý¾Ý£¬Èç¹ûÄãÐèÒª°ÑÊý¾Ý±íµ¼³ö³ÉXMLÄÇÓÃTClientDataSetÊǸöºÃÖ÷Ò⣬±ÈÈçÏÂÃæÊÇÒ»¸öÊý¾Ý¼¯µ¼³ö³ÉXMLµÄ·½ ·¨£º
procedure ExportToXML(SrcDataSet:TDataSet;const XMLFileName:String);
var tmpCds:TClientDataSet;
    i:integer;
    NewField:TFieldDef;
begin
SrcDataSet.DisableControls;
tmpCds:=TClientDataSet.Create(nil);
try
    for i:=0 to SrcDataSet.FieldCount-1 do
    begin
      NewField:=tmpCds.FieldDefs.AddFieldDef;
      NewField.Name:=SrcDataSet.Fields[i].FieldName;
      NewField.DataType:=SrcDataSet.fields[i].DataType;
      NewField.Size:=SrcDataSet.Fields[i].Size;
    end;
    tmpCds.Cr ......

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