collegesearchpanel.java

使用JBuilder基于Oracle数据库的课程作业

package StudentManageSystem.factionpanels.searchpanel;

import StudentManageSystem.factionpanels.infopanel.CollegeInfoPanel;
import javax.swing.tree.DefaultMutableTreeNode;
import java.sql.ResultSet;
import StudentManageSystem.link.SQLRunner;
import java.sql.SQLException;

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

    public void addNodes() {
        try {
            top=new DefaultMutableTreeNode("内大");
            ResultSet rdp=SQLRunner.getResult("select * from college");
            while (rdp.next()) {
               String dno=rdp.getString("college_no");
               String dpname=rdp.getString("coname");
               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);
            showLeavesView(cno);
            //showTableView("select * from teacher");
        }else{
            showTableView("select * from college");
        }

    }
}