[英]JTable TableModel problem in Java
我可以毫無問題地在JTable
中顯示我的數據,但是當我想在我的應用程序運行時進行過濾時, JTable
沒有顯示數據更改。 我搜索它並找到了一個名為 TableModel 的 class 但我無法編寫我的 AbstractTableModel。 誰能告訴我該怎么做?
Personelz.Java
package deneme.persistence;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.persistence.Transient;
/**
*
* @author İbrahim AKGÜN
*/
@Entity
@Table(name = "PERSONELZ", catalog = "tksDB", schema = "dbo")
@NamedQueries({@NamedQuery(name = "Personelz.findAll", query = "SELECT p FROM Personelz p"), @NamedQuery(name = "Personelz.findByPersonelıd", query = "SELECT p FROM Personelz p WHERE p.personelıd = :personelıd"), @NamedQuery(name = "Personelz.findByAd", query = "SELECT p FROM Personelz p WHERE p.ad = :ad"), @NamedQuery(name = "Personelz.findBySoyad", query = "SELECT p FROM Personelz p WHERE p.soyad = :soyad")})
public class Personelz implements Serializable {
@Transient
private PropertyChangeSupport changeSupport = new PropertyChangeSupport(this);
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Basic(optional = false)
@Column(name = "PERSONELID", nullable = false )
private Integer personelıd;
@Column(name = "AD", length = 50)
private String ad;
@Column(name = "SOYAD", length = 50)
private String soyad;
@Column(name = "YAS")
private Integer yas;
public Personelz() {
}
public Personelz(Integer personelıd) {
this.personelıd = personelıd;
}
public Integer getPersonelıd() {
return personelıd;
}
public void setPersonelıd(Integer personelıd) {
this.personelıd = personelıd;
}
public String getAd() {
return ad;
}
public void setAd(String ad) {
String oldAd = this.ad;
this.ad = ad;
changeSupport.firePropertyChange("ad", oldAd, ad);
}
public String getSoyad() {
return soyad;
}
public void setSoyad(String soyad) {
String oldSoyad = this.soyad;
this.soyad = soyad;
changeSupport.firePropertyChange("soyad", oldSoyad, soyad);
}
public Integer getYas() {
return yas;
}
public void setYas(Integer yas){
this.yas = yas;
}
表格模型
public class TableModel extends AbstractTableModel {
String[] headers;
List<Personelz> personel;
int row;
int column;
Object[][] per;
/** Creates a new instance of TableModel */
@SuppressWarnings("empty-statement")
public TableModel(List<Personelz> p) {
this.personel = p;
column=2;
row=this.personel.size();
headers=new String[column];
headers[0]="AD";
headers[1]="SOYAD";
per={p.toArray(),p.toArray()};
}
public int getColumnCount()
{
return column;
}
public int getRowCount()
{
return row;
}
public Object getValueAt(int rowIndex, int kolonindex)
{
return per[rowIndex][kolonindex];
}
public String getColumnName(int i)
{
return headers[i];
}
有一個名為 GlazedLists 的非常好的庫,它使處理列表和表格(包括列排序和行過濾)變得更加簡單。
絕對值得一看。
http://publicobject.com/glazedlists/
HTH
您應該使用JTable
實現的TableModelListener
接口。 將表添加到 TableModel 后,調用AbstractTableModel
實現的適當的fireTableChanged()
類型事件。 這應該會強制您的JTable
進行更新。
當您的過濾操作返回時,您仍然需要實施一種方法來重置 model 中的數據。 您應該在這個方法中調用您的fireTableChanged()
事件。 您還應該確保在觸發表更改事件時處於 AWT 線程中。
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