smsutil.java

学生成绩管理系统 eclipse rcp开发 swt技术

package com.zdh.sms.system;

import java.text.SimpleDateFormat;
import java.util.Date;

import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;

import com.zdh.sms.db.DbOperate;
import com.zdh.sms.model.Course;
import com.zdh.sms.model.SchoolClass;


public class SmsUtil {
	private SmsUtil() {}// 用private型构造函数，防止创建工具类的对象

	public static Combo createSchoolClassCombo(Composite parent, int style) {
		Combo combo = new Combo(parent, style);
		DbOperate db = SmsFactory.getDbOperate();
		for (SchoolClass sc : db.getAllSchoolClass()) {
			String name = sc.getName();
			combo.add(name);
			combo.setData(name, sc);
		}
		return combo;
	}

	// 创建一个课程下拉框，包含所有课程值
	public static Combo createCourseCombo(Composite parent, int style) {
		Combo combo = new Combo(parent, style);
		DbOperate db = SmsFactory.getDbOperate();
		for (Course course : db.getCourses()) {
			String name = course.getName();
			combo.add(name);
			combo.setData(name, course);
		}
		return combo;
	}

	// 日期对象转换成字符串
	public static String dateToLongStr(Date date) {
		if (date == null)
			return "";
		return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(date);
	}
	
	public static String dateToShortStr(Date date) {
		if (date == null)
			return "";
		return new SimpleDateFormat("yyyy-MM-dd").format(date);
	}
}