teachersearchpanel.java~5~

使用JBuilder基于Oracle数据库的课程作业

package superframe.factionpanels.searchpanel;

import superframe.factionpanels.infopanel.TeacherInfoPanel;
import java.awt.event.ActionEvent;
import java.sql.ResultSet;
import superframe.link.SQLRunner;
import javax.swing.tree.DefaultMutableTreeNode;
import java.sql.SQLException;

public class TeacherSearchPanel extends SearchPanel {
    public TeacherSearchPanel(String cno, boolean e){
        infoPanel=new TeacherInfoPanel(e);
        initialize(cno,e);
    }

    public void addNodes() {
        try {
            if(top!=null)top.removeAllChildren();
            ResultSet rs=SQLRunner.getResult("select * from college where college_no='"+college_no+"'");
            if(!rs.next())return;
            top=new DefaultMutableTreeNode(college_no+rs.getString("coname"));
            ResultSet rdp=SQLRunner.getResult("select * from teacher where teacher.college_no='"+college_no+"'");
            while (rdp.next()) {
               String dno=rdp.getString("teacher_no");
               String dpname=rdp.getString("tname");
               DefaultMutableTreeNode dp=new DefaultMutableTreeNode(dno+'/'+dpname);
               top.add(dp);
          }
        } catch (SQLException ex) {
        }

    }

    public void setView(String s) {
        String sub=(s.trim());
       sub=sub.substring(sub.length()-1,sub.length());
       if(sub.trim().equals("院")){
           String cno=s.substring(0,2);
           showTableView("select dpname,count(Stu_no) from Studentinfo where college_no='"+cno+"' group by dpname");
       }else if(sub.trim().equals("系")){
           String dno=s.substring(0,2);
           showTableView("select clname,count(Stu_no) from Studentinfo where depart_no='"+dno+"' group by clname");
       }else if(sub.trim().equals("班")){
           String clno=s.substring(0,4);
           showTableView("select stu_no,sname,sex,nation,source,class_no from Student where class_no='"+clno+"'");
       }else{
           String sno=s.substring(0,8);
           System.out.println(sno);
           showLeavesView(sno);
       }

    }
}