addsrocepanel.java

您的文件包然后写出其具体功能(至少要20个字)。尽量不要让站长把时间都花费在为您

package Panel.StudentSroce;

import java.util.*;

import javax.swing.table.*;
import javax.swing.*;

import Sys.dao.*;
import Sys.vo.*;
import Tools.Teacher;

public class AddSrocePanel extends javax.swing.JPanel {
	private static final long serialVersionUID = 1L;
	public AddSrocePanel() {
		initComponents();
	}
	
	private void initComponents() {
		java.awt.GridBagConstraints gridBagConstraints;

		jTable1=new JTable();
		jLabel1 = new javax.swing.JLabel();
		jLabel2 = new javax.swing.JLabel();
		jComboBox1 = new javax.swing.JComboBox();
		jLabel3 = new javax.swing.JLabel();
		jComboBox2 = new javax.swing.JComboBox();
		jScrollPane1 = new javax.swing.JScrollPane();
		jButton1 = new javax.swing.JButton();

		setLayout(new java.awt.GridBagLayout());

		jLabel1.setFont(new java.awt.Font("宋体", 1, 24));
		jLabel1.setText("添加/修改学生成绩");
		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jLabel1, gridBagConstraints);

		jLabel2.setText("\u73ed\u7ea7\u9009\u62e9");
		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jLabel2, gridBagConstraints);

		jComboBox1.setPreferredSize(new java.awt.Dimension(130, 23));
		jComboBox1.addItemListener(new java.awt.event.ItemListener() {
			public void itemStateChanged(java.awt.event.ItemEvent evt) {
				jComboBox1ItemStateChanged(evt);
			}
		});
		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jComboBox1, gridBagConstraints);

		jLabel3.setText("\u8bfe\u7a0b\u9009\u62e9");
		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jLabel3, gridBagConstraints);

		jComboBox2.setPreferredSize(new java.awt.Dimension(130, 23));
		jComboBox2.addItemListener(new java.awt.event.ItemListener() {
			public void itemStateChanged(java.awt.event.ItemEvent evt) {
				jComboBox2ItemStateChanged(evt);
			}
		});
		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jComboBox2, gridBagConstraints);
		
		jTable1.setRowHeight(jTable1.getRowHeight()+6);
		jScrollPane1.setViewportView(jTable1);

		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.gridx = 0;
		gridBagConstraints.gridy = 2;
		gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
		gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jScrollPane1, gridBagConstraints);

		jButton1.setText("\u63d0\u4ea4");
		jButton1.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(java.awt.event.ActionEvent evt) {
				jButton1ActionPerformed(evt);
			}
		});
		gridBagConstraints = new java.awt.GridBagConstraints();
		gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
		gridBagConstraints.weightx = 5.0;
		gridBagConstraints.weighty = 0.1;
		add(jButton1, gridBagConstraints);
		
		loadClass(Panel.UserManage.LoginPanel.manager);
	}
	
	private void loadCourse(String classid){
		jComboBox2.removeAllItems();
		CourseClassDao courseclassdao=new CourseClassDao();
		List<Course> courselist=courseclassdao.getCourseForClass(classid);
		Iterator<Course> iter=courselist.iterator();
		while(iter.hasNext()){
			jComboBox2.addItem(iter.next().getCourseName());
		}
		//jComboBox2.setSelectedIndex(0);
	}
	private void loadClass(Teacher teacher){
		if(!teacher.getTeacherName().equals("Admin")){
			jComboBox1.addItem(teacher.getClassID());
		}else{
			java.util.List<ClassInfo> list=null;
			ClassDao classdao=new ClassDao();
			list=classdao.getAllClass();
			Iterator<ClassInfo> iter=list.iterator();
			while(iter.hasNext())
				jComboBox1.addItem(iter.next().getClassID());
		}
		jComboBox1.setSelectedIndex(0);
		//晕了，System.out.println(jComboBox1.getSelectedItem().toString());
		//这条语句是错的，我以为可以返回他的文本内容，原来返回的是对象，基础不扎实啊
	}
	private void loadCourseSroce(String classid ,String coursename){
		columnNames[4]=coursename;
		jTable1.setModel(tablemodel=new DefaultTableModel(columnNames,0){
			private static final long serialVersionUID = 1L;
			public boolean isCellEditable(int row, int col) {
				if(col==0||col==1||col==2||col==3||col==5)
					return false;
		         return true;
		    }
		});
		jTable1.getTableHeader().setReorderingAllowed(false);
		StudentSroceDao studentsrocedao=new StudentSroceDao();
		List<StudentSroce> studentsrocelist=studentsrocedao.getStudentSroceList(classid, coursename);
		int i=0;
	    Iterator<StudentSroce> iter = studentsrocelist.iterator();
	    while (iter.hasNext()) {
	    	   StudentSroce studentsroce=iter.next();//这里因为要获得同一个StudentInfo对象的多个值，就这样来
		       i++;
		       String []content={String.valueOf(i),studentsroce.getStudentID(),studentsroce.getStudentName()
		    		   ,studentsroce.getSex(),Double.toString(studentsroce.getSroce()),studentsroce.getModifyTime()};
		       tablemodel.addRow(content);
	    }
	}
	
	private void jComboBox2ItemStateChanged(java.awt.event.ItemEvent evt) {
		loadCourseSroce((String)jComboBox1.getSelectedItem(),(String)jComboBox2.getSelectedItem());
	}
	
	private void jComboBox1ItemStateChanged(java.awt.event.ItemEvent evt) {
		loadCourse((String)jComboBox1.getSelectedItem());
		//要先移除JComboBox的东西，再添加
	}
	
	private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
		StudentSroceDao studentsrocedao=new StudentSroceDao();
		//你這種寫法可以說就是正確的。真要說正確(或說設計者的意圖)的作法是儘可能不要使用
		//array with parameterized type as component type，而改用 collection。
		//(用 java.util.List<Vector<MyClass>> 
		Vector v=tablemodel.getDataVector();
		ArrayList list=new ArrayList<StudentSroce>();
		for(Enumeration enu=v.elements();enu.hasMoreElements();){
			Vector v2 = (Vector) enu.nextElement();
			StudentSroce studentsroce=new StudentSroce();
			studentsroce.setStudentID((String)v2.elementAt(1));
			studentsroce.setStudentName((String)v2.elementAt(2));
			studentsroce.setSex((String)v2.elementAt(3));
			studentsroce.setCourseName(columnNames[4]);
			try{
				studentsroce.setSroce(Double.valueOf((String)v2.elementAt(4)));
			}catch(NumberFormatException e){
				JOptionPane.showMessageDialog(null,"请正确输入成绩");
			}
			//studentsroce.setModifyTime((String)v2.elementAt(5));
			list.add(studentsroce);
		}
		studentsrocedao.addSroceList(list);
	}
	
	private DefaultTableModel tablemodel;
	private String []columnNames={"序列","学号","姓名","性别","","修改时间"};
	private JTable jTable1;
	private javax.swing.JButton jButton1;
	private javax.swing.JComboBox jComboBox1;
	private javax.swing.JComboBox jComboBox2;
	private javax.swing.JLabel jLabel1;
	private javax.swing.JLabel jLabel2;
	private javax.swing.JLabel jLabel3;
	private javax.swing.JScrollPane jScrollPane1;
}