JSF-Ders 12 Veritabanı Veri Güncelleme-Datatable Veri Güncelleme

Eylül 21, 2017Temmuz 29, 2019 Abdullah Furkan KOÇ 2 yorum datatable listeleme, datatble, datatble güncelleme, Java Server Faces, JSF

Merhaba arkadaşlar bu yazımda size veritabanında veri güncelleme ve datatable üzerinde veri güncellemeden bir örnek ile bahsedeceğim. Öncelikli olarak jsf ‘ rendered değerinden bahsetmek istiyorum.

JSF Rendered nedir? Rendered Kullanımı?

Rendered bileşenin sitede görünüp görünmemesini ayarlayan özelliktir. Rendered değer olarak true yada false alır.Eğer true alırsa o bileşen sitede görünür, eğer false alırsa o bileşen sitede görünmez ve kullanılmaz.

Şimdi örneğe geçebiliriz:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"

      xmlns:ui="http://java.sun.com/jsf/facelets"

      xmlns:f="http://java.sun.com/jsf/core"

      xmlns:h="http://java.sun.com/jsf/html">



<h:head></h:head>

<body>
       <h:form>
 
            <h:dataTable value="#{veritabani.verileriCek()}" var="bilgi">

                        

                           <h:column>

                                  <f:facet name="header">İsim</f:facet>

                                  <h:outputText value="#{bilgi.isim}" rendered="#{!bilgi.gorunurluk}" />

                                  <h:inputText value="#{veritabani.nesne.isim}"  rendered="#{bilgi.gorunurluk}"/>

                           </h:column>

                          

                           <h:column>

                                  <f:facet name="header">Soyisim</f:facet>

                                  <h:outputText value="#{bilgi.soyisim}" rendered="#{!bilgi.gorunurluk}"/>

                                  <h:inputText value="#{veritabani.nesne.soyisim}" rendered="#{bilgi.gorunurluk}"/>

                           </h:column>

                          

                           <h:column>

                                  <f:facet name="header">Maaş</f:facet>

                                  <h:outputText value="#{bilgi.maas}" rendered="#{!bilgi.gorunurluk}"/>

                                  <h:inputText value="#{veritabani.nesne.maas}"  rendered="#{bilgi.gorunurluk}"/>

                           </h:column>

                          

                           <h:column>

                                  <f:facet name="hader">İşlemler</f:facet>

                                  <h:commandButton action="#{veritabani.duzenle(bilgi)}"  value="Düzenle" rendered="#{!bilgi.gorunurluk}" />

                                  <h:commandButton action="#{veritabani.kaydet(bilgi)}" value="Kaydet" rendered="#{bilgi.gorunurluk}" />

                           </h:column>

                     </h:dataTable>

           </h:form>

</body>

</html>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"

xmlns:ui="http://java.sun.com/jsf/facelets"

xmlns:f="http://java.sun.com/jsf/core"

xmlns:h="http://java.sun.com/jsf/html">

<h:head></h:head>

<body>

<h:form>

<h:dataTable value="#{veritabani.verileriCek()}" var="bilgi">

<h:column>

<f:facet name="header">İsim</f:facet>

<h:outputText value="#{bilgi.isim}" rendered="#{!bilgi.gorunurluk}" />

<h:inputText value="#{veritabani.nesne.isim}" rendered="#{bilgi.gorunurluk}"/>

</h:column>

<h:column>

<f:facet name="header">Soyisim</f:facet>

<h:outputText value="#{bilgi.soyisim}" rendered="#{!bilgi.gorunurluk}"/>

<h:inputText value="#{veritabani.nesne.soyisim}" rendered="#{bilgi.gorunurluk}"/>

</h:column>

<h:column>

<f:facet name="header">Maaş</f:facet>

<h:outputText value="#{bilgi.maas}" rendered="#{!bilgi.gorunurluk}"/>

<h:inputText value="#{veritabani.nesne.maas}" rendered="#{bilgi.gorunurluk}"/>

</h:column>

<h:column>

<f:facet name="hader">İşlemler</f:facet>

<h:commandButton action="#{veritabani.duzenle(bilgi)}" value="Düzenle" rendered="#{!bilgi.gorunurluk}" />

<h:commandButton action="#{veritabani.kaydet(bilgi)}" value="Kaydet" rendered="#{bilgi.gorunurluk}" />

</h:column>

</h:dataTable>

</h:form>

</body>

</html>

package com.teknokafe;



public class Bilgiler
{
       private String isim="";
       private String soyisim="";
       private int maas;
       private  boolean gorunurluk=false;
      

       public boolean isGorunurluk() {

             return gorunurluk;

       }



       public void setGorunurluk(boolean gorunurluk) {

             this.gorunurluk = gorunurluk;

       }



       public String getIsim() {

             return isim;

       }



       public void setIsim(String isim) {

             this.isim = isim;

       }



       public String getSoyisim() {

             return soyisim;

       }



       public void setSoyisim(String soyisim) {

             this.soyisim = soyisim;

       }



       public int getMaas() {

             return maas;

       }



       public void setMaas(int maas) {

             this.maas = maas;

       }



      

}

package com.teknokafe;

public class Bilgiler

{

private String isim="";

private String soyisim="";

private int maas;

private boolean gorunurluk=false;

public boolean isGorunurluk() {

return gorunurluk;

}

public void setGorunurluk(boolean gorunurluk) {

this.gorunurluk = gorunurluk;

}

public String getIsim() {

return isim;

}

public void setIsim(String isim) {

this.isim = isim;

}

public String getSoyisim() {

return soyisim;

}

public void setSoyisim(String soyisim) {

this.soyisim = soyisim;

}

public int getMaas() {

return maas;

}

public void setMaas(int maas) {

this.maas = maas;

}

package com.teknokafe;



import java.io.Serializable;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;



import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;



import com.mysql.jdbc.PreparedStatement;

import com.sun.scenario.effect.Blend;





@ManagedBean

@SessionScoped

public class Veritabani  implements Serializable

{

               

                private List<Bilgiler>liste=new ArrayList<Bilgiler>();

                Connection connection=null;

                PreparedStatement pre=null;

               

                Bilgiler  nesne=new Bilgiler();

               

                public Bilgiler getNesne() {

                               return nesne;

                }

                public void setNesne(Bilgiler nesne) {

                               this.nesne = nesne;

                }

                public void baglanti()

                {

                               try

                               {

                                               Class.forName("com.mysql.jdbc.Driver");

                                               connection=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","19961903");

                               }

                               catch (Exception e)

                               {

                               System.err.println(" Bağlantıda Hata Var :"+e.toString());          

                                              

                               }

                }

                public List<Bilgiler>verileriCek()

                {              baglanti();

                               try

                               {

                                               pre=(PreparedStatement) connection.prepareStatement("Select * from maas");

                                               ResultSet resultSet;

                                               resultSet=pre.executeQuery();

                                               liste.clear();

                                               while(resultSet.next())

                                               {

                                                               Bilgiler bilgiler=new Bilgiler();

                                                               bilgiler.setIsim(resultSet.getString("isim"));

                                                               bilgiler.setSoyisim(resultSet.getString("soyisim"));

                                                               bilgiler.setMaas(resultSet.getInt("maas"));

                                                               bilgiler.setGorunurluk(resultSet.getBoolean("gorunurluk"));

                                                              

                                                               liste.add(bilgiler);

                                               }

                               }

                               catch (Exception e)

                               {

                                               System.out.println("Hata Var :"+e.toString());

                               }

                              

                               return liste;

                }



                public void duzenle(Bilgiler bilgiler)

                {

                               setIsim2(bilgiler.getIsim());

                               setSoyisim2(bilgiler.getSoyisim());

                               try {

                                               pre=(PreparedStatement) connection.prepareStatement("update maas SET gorunurluk=true where isim=? and soyisim=?");

                                               pre.setString(1, bilgiler.getIsim());

                                               pre.setString(2, bilgiler.getSoyisim());

                                              

                                               pre.executeUpdate();

                                              

                                               nesne.setIsim(bilgiler.getIsim());

                                               nesne.setSoyisim(bilgiler.getSoyisim());

                                               nesne.setMaas(bilgiler.getMaas());

                               } catch (Exception e)

                               {



                                               System.out.println("Hata var :"+e.toString());                 

                               }

                }

                public void kaydet(Bilgiler bilgiler)

                {

                try

                {

                               pre=(PreparedStatement) connection.prepareStatement("Update maas SET isim=? , soyisim=? , maas=? , gorunurluk=false where isim=? and soyisim=?");

                               pre.setString(1, nesne.getIsim());

                               pre.setString(2, bilgiler.getSoyisim());

                               pre.setInt(3, bilgiler.getMaas());

                              

                               System.out.println("Bilgilerrr :"+nesne.getIsim());

                               pre.setString(4,getIsim2());

                               pre.setString(5 , getSoyisim2());

                               pre.executeUpdate();

                              

                }

                catch (Exception e)

                {

                System.out.println("Hata Var Burada :"+e.toString());

                }

                }

               

                private static String isim2,soyisim2;

                public String getIsim2() {

                               return isim2;

                }

                public void setIsim2(String isim2) {

                               this.isim2 = isim2;

                }

                public String getSoyisim2() {

                               return soyisim2;

                }

                public void setSoyisim2(String soyisim2) {

                               this.soyisim2 = soyisim2;

                }

               



}

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package com.teknokafe;

import java.io.Serializable;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import javax.faces.bean.ManagedBean;

import javax.faces.bean.SessionScoped;

import com.mysql.jdbc.PreparedStatement;

import com.sun.scenario.effect.Blend;

@ManagedBean

@SessionScoped

public class Veritabani implements Serializable

{

private List<Bilgiler>liste=new ArrayList<Bilgiler>();

Connection connection=null;

PreparedStatement pre=null;

Bilgiler nesne=new Bilgiler();

public Bilgiler getNesne() {

return nesne;

}

public void setNesne(Bilgiler nesne) {

this.nesne = nesne;

}

public void baglanti()

{

try

{

Class.forName("com.mysql.jdbc.Driver");

connection=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","19961903");

}

catch (Exception e)

{

System.err.println(" Bağlantıda Hata Var :"+e.toString());

}

public List<Bilgiler>verileriCek()

{ baglanti();

try

{

pre=(PreparedStatement) connection.prepareStatement("Select * from maas");

ResultSet resultSet;

resultSet=pre.executeQuery();

liste.clear();

while(resultSet.next())

{

Bilgiler bilgiler=new Bilgiler();

bilgiler.setIsim(resultSet.getString("isim"));

bilgiler.setSoyisim(resultSet.getString("soyisim"));

bilgiler.setMaas(resultSet.getInt("maas"));

bilgiler.setGorunurluk(resultSet.getBoolean("gorunurluk"));

liste.add(bilgiler);

}

catch (Exception e)

{

System.out.println("Hata Var :"+e.toString());

}

return liste;

}

public void duzenle(Bilgiler bilgiler)

{

setIsim2(bilgiler.getIsim());

setSoyisim2(bilgiler.getSoyisim());

try {

pre=(PreparedStatement) connection.prepareStatement("update maas SET gorunurluk=true where isim=? and soyisim=?");

pre.setString(1, bilgiler.getIsim());

pre.setString(2, bilgiler.getSoyisim());

pre.executeUpdate();

nesne.setIsim(bilgiler.getIsim());

nesne.setSoyisim(bilgiler.getSoyisim());

nesne.setMaas(bilgiler.getMaas());

} catch (Exception e)

{

System.out.println("Hata var :"+e.toString());

}

public void kaydet(Bilgiler bilgiler)

{

try

{

pre=(PreparedStatement) connection.prepareStatement("Update maas SET isim=? , soyisim=? , maas=? , gorunurluk=false where isim=? and soyisim=?");

pre.setString(1, nesne.getIsim());

pre.setString(2, bilgiler.getSoyisim());

pre.setInt(3, bilgiler.getMaas());

System.out.println("Bilgilerrr :"+nesne.getIsim());

pre.setString(4,getIsim2());

pre.setString(5 , getSoyisim2());

pre.executeUpdate();

}

catch (Exception e)

{

System.out.println("Hata Var Burada :"+e.toString());

}

private static String isim2,soyisim2;

public String getIsim2() {

return isim2;

}

public void setIsim2(String isim2) {

this.isim2 = isim2;

}

public String getSoyisim2() {

return soyisim2;

}

public void setSoyisim2(String soyisim2) {

this.soyisim2 = soyisim2;

}

İlk Hali :

Düzenle butonuna bastıktan sonra :

Kaydet butonuna bastıktan sonra :

Görüldüğü üzere datatable de güncelleme işlemini yapmış olduk… Sonraki yazılarımızda görüşmek üzere…

Görüntüleme Sayısı: 1.255

“JSF-Ders 12 Veritabanı Veri Güncelleme-Datatable Veri Güncelleme” için 2 yorum

Deneme
Eylül 24, 2017 tarihinde, saat 7:47 pm

Çok üstten anlatıyorsunuz biraz daha açıklayıcı olun.
Yanıtla
- Abdullah Furkan KOÇ
  Eylül 25, 2017 tarihinde, saat 11:11 am
  
  Zaten gerekli açıklamalar yapıldı..Anlamadığınız bir nokta varsa yorum yaparak sorabilirsiniz…
  Yanıtla

TeknoKafe.Net

JSF-Ders 12 Veritabanı Veri Güncelleme-Datatable Veri Güncelleme

“JSF-Ders 12 Veritabanı Veri Güncelleme-Datatable Veri Güncelleme” için 2 yorum

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