JAVA课程设计——多源教学数据管理系统

团队简介

团队名称:

419圣斗士

团队成员

姓名 成员介绍 任务分配
周炳辉(组长) 来自网络的一个大佬,穿女装很合适 poi与servlet
徐宏伟 网络中一个具有强大隐藏实力的大哥 css,部分jsp与html
李金谣 旭宝的忠实粉丝,来自格兰迪的挖矿者 部分jsp与echarts
龚顺德 常规划水,一个默默无闻的人 团队博客,Student类

项目git地址

git项目地址

项目git提交记录

项目功能架构图与主要功能流程图

  • 主要功能图

项目运行截图或屏幕录制

项目关键代码

 
public class ExcelUtil {
	//默认单元格内容为数字时格式
	private static DecimalFormat df = new DecimalFormat("0");
	// 默认单元格格式化日期字符串 
	private static SimpleDateFormat sdf = new SimpleDateFormat(  "yyyy-MM-dd HH:mm:ss"); 
	// 格式化数字
	private static DecimalFormat nf = new DecimalFormat("0.00");  
	public static ArrayList<ArrayList<Object>> readExcel(File file){
		if(file == null){
			return null;
		}
		if(file.getName().endsWith("xlsx")){
			//处理ecxel2007
			return readExcel2007(file);
		}else{
			//处理ecxel2003
			return readExcel2003(file);
		}
	}
	/*
	 * @return 将返回结果存储在ArrayList内,存储结构与二位数组类似
	 * lists.get(0).get(0)表示过去Excel中0行0列单元格
	 */
	public static ArrayList<ArrayList<Object>> readExcel2003(File file){
		try{
			ArrayList<ArrayList<Object>> rowList = new ArrayList<ArrayList<Object>>();
			ArrayList<Object> colList;
			HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(file));
			int length = wb.getNumberOfSheets();
			int index = 0;
			for(int i = 0; i < length; i++) {
				HSSFSheet tempSheet = wb.getSheetAt(i);
				HSSFRow row = tempSheet.getRow(0);
				HSSFCell cell = row.getCell(0);
				String value = cell.getStringCellValue(); 
				if(value.contains("网络17")) {
					index = i;
					break;
				}
			}
			HSSFSheet sheet = wb.getSheetAt(index);
			HSSFRow row;
			HSSFCell cell;
			Object value;
			for(int i = sheet.getFirstRowNum() , rowCount = 0; rowCount < sheet.getPhysicalNumberOfRows() ; i++ ){
				row = sheet.getRow(i);
				colList = new ArrayList<Object>();
				if(row == null){
					//当读取行为空时
					if(i != sheet.getPhysicalNumberOfRows()){//判断是否是最后一行
						rowList.add(colList);
					}
					continue;
				}else{
					rowCount++;
				}
				for( int j = row.getFirstCellNum() ; j <= row.getLastCellNum() ;j++){
					cell = row.getCell(j);
					if(cell == null || cell.getCellType() == CellType.BLANK){
						//当该单元格为空
						if(j != row.getLastCellNum()){//判断是否是该行中最后一个单元格
							colList.add("");
						}
						continue;
					}
					switch(cell.getCellType()){
					 case STRING:  
		                    value = cell.getStringCellValue();  
		                    break;  
		                case NUMERIC:  
		                    value = df.format(cell.getNumericCellValue());
		                    break;  
		                case BOOLEAN:  
		                    value = Boolean.valueOf(cell.getBooleanCellValue());
		                    break;  
		                case BLANK:  
		                    value = "";  
		                    break;  
		                default:  
		                    value = cell.toString();  
					}// end switch
					colList.add(value);
				}//end for j
				rowList.add(colList);
			}//end for i
			
			return rowList;
		}catch(Exception e){
			return null;
		}
	}
	
	public static ArrayList<ArrayList<Object>> readExcel2007(File file){
		try{
			ArrayList<ArrayList<Object>> rowList = new ArrayList<ArrayList<Object>>();
			ArrayList<Object> colList;
			XSSFWorkbook wb = new XSSFWorkbook(new FileInputStream(file));
			int length = wb.getNumberOfSheets();
			int index = 0;
			for(int i = 0; i < length; i++) {
				XSSFSheet tempSheet = wb.getSheetAt(i);
				XSSFRow row = tempSheet.getRow(0);
				XSSFCell cell = row.getCell(0);
				if(cell!=null&&cell.getCellType()!=CellType.BLANK) {
					String value = cell.getStringCellValue(); 
					if(value.contains("网络17")) {
						index = i;
						break;
					}
				}
			}
			XSSFSheet sheet = wb.getSheetAt(index);
			XSSFRow row;
			XSSFCell cell;
			Object value;
			for(int i = sheet.getFirstRowNum() , rowCount = 0; rowCount < sheet.getPhysicalNumberOfRows() ; i++ ){
				row = sheet.getRow(i);
				colList = new ArrayList<Object>();
				if(row == null){
					//当读取行为空时
					if(i != sheet.getPhysicalNumberOfRows()){//判断是否是最后一行
						rowList.add(colList);
					}
					continue;
				}else{
					rowCount++;
				}
				for( int j = row.getFirstCellNum() ; j <= row.getLastCellNum() ;j++){
					cell = row.getCell(j);
					if(cell == null || cell.getCellType() == CellType.BLANK){
						//当该单元格为空
						if(j != row.getLastCellNum()){//判断是否是该行中最后一个单元格
							colList.add("");
						}
						continue;
					}
					switch(cell.getCellType()){
						case STRING:  
		                    value = cell.getStringCellValue();  
		                    break;  
		                case NUMERIC:  
		                	value = df.format(cell.getNumericCellValue());
		                    break;  
		                case BOOLEAN:  
		                    value = Boolean.valueOf(cell.getBooleanCellValue());
		                    break;  
		                case BLANK:  
		                    value = "";  
		                    break;  
		                default:  
		                    value = cell.toString();  
					}// end switch
					colList.add(value);
				}//end for j
				rowList.add(colList);
			}//end for i			
			return rowList;
		}catch(Exception e){
			e.printStackTrace();
			System.out.println("exception");
			return null;
		}
	}
	
	public static void writeExcel(ArrayList<ArrayList<Object>> result,String path){
		if(result == null){
			return;
		}
		XSSFWorkbook wb = new XSSFWorkbook();
		XSSFSheet sheet = wb.createSheet("sheet1");
		for(int i = 0 ;i < result.size() ; i++){
			XSSFRow row = sheet.createRow(i);
			if(result.get(i) != null){
				for(int j = 0; j < result.get(i).size() ; j ++){
					XSSFCell cell = row.createCell(j);
					cell.setCellValue(result.get(i).get(j).toString());
				}
			}
		}
		ByteArrayOutputStream os = new ByteArrayOutputStream();
        try
        {
            wb.write(os);
        } catch (IOException e){
            e.printStackTrace();
        }
        byte[] content = os.toByteArray();
        File file = new File(path);//Excel文件生成后存储的位置。
        OutputStream fos  = null;
        try
        {
            fos = new FileOutputStream(file);
            fos.write(content);
            os.close();
            fos.close();
        }catch (Exception e){
            e.printStackTrace();
        }
	}
	
	public static DecimalFormat getDf() {
		return df;
	}
	public static void setDf(DecimalFormat df) {
		ExcelUtil.df = df;
	}
	public static SimpleDateFormat getSdf() {
		return sdf;
	}
	public static void setSdf(SimpleDateFormat sdf) {
		ExcelUtil.sdf = sdf;
	}
	public static DecimalFormat getNf() {
		return nf;
	}
	public static void setNf(DecimalFormat nf) {
		ExcelUtil.nf = nf;
	}
	
	
	
}
public class POIUtil {
	
	public static void buildStandardScale(String path) {
		Connection con = null;
		PreparedStatement pStatement = null;
		Statement stmt = null;
		ResultSet rs = null;
		ArrayList<ArrayList<Object>> ans;
		String sql = "insert into study(id,name,sex,class,major,faculty) values(?,?,?,?,?,?)";
		try {
			con = JDBCUtil.getConnection();
			con.setAutoCommit(false);
			ans = new ArrayList<ArrayList<Object>>();
			ans = TxtUtil.readFile(path);
		//	ans = TxtUtil.readFile("C:\\Users\\你们走啊\\Desktop\\study\\学生名单.txt");
			stmt = con.createStatement();
			pStatement = con.prepareStatement(sql);
			for(int i = 1; i < ans.size(); i++) {
				String id = ans.get(i).get(0).toString();
				String newSql = "select * from study where id = "+id;
				rs = stmt.executeQuery(newSql);
				String c = "0";
				while (rs.next()) {
					c = rs.getString(1); 
				} 
				if(c.equals("0")) {
					for(int j = 1; j <= ans.get(i).size(); j++) {
						pStatement.setString(j, ans.get(i).get(j-1).toString());
					}
					pStatement.addBatch();
					pStatement.executeBatch();
					con.commit();
				}
			}
		}catch (SQLException sqle) {
				sqle.printStackTrace();
		}catch(Exception e){
				e.printStackTrace();
		}finally{
				JDBCUtil.realeaseAll(rs, stmt, con, pStatement);
		}
	}
	
	public static void mergeExcel(String path) {
		Connection con = null;
		PreparedStatement pStatement = null;
		Statement stmt = null;
		ResultSet rs = null;
		ArrayList<ArrayList<Object>> ans;
		ArrayList<Object> cowList;
		ArrayList<ArrayList<Object>> errorAns = new ArrayList<ArrayList<Object>>();
		ArrayList<Object> temp = new ArrayList<Object>();
		temp.add("学号");
		temp.add("姓名");
		temp.add("该信息所在的文件夹");
		errorAns.add(temp);
		String sql = "insert into study(id,name,sex,class,major,faculty) values(?,?,?,?,?,?)";
		try {
			con = JDBCUtil.getConnection();
			con.setAutoCommit(false);
			stmt = con.createStatement();
		//	String Path = "C:\\Users\\你们走啊\\Desktop\\新建文件夹";
			File file = new File(path);
			File[] tempList = file.listFiles();
			String tempNameList [] = new String [tempList.length];
			for(int i = 0; i < tempList.length; i++) {
				if (tempList[i].isFile()) {
					tempNameList[i] = tempList[i].toString();
				}
			}
			int begin = 0, index = 0;
			ArrayList<ArrayList<Object>> result;
			for(int l = 0; l < tempNameList.length; l++) {
				begin = 0;
				index = 0;
				if(tempNameList[l].contains("txt")) {
					continue;
				}
				if(tempNameList[l].contains("错误")) {
					continue;
				}
				if(tempNameList[l].contains("网络汇总")) {
					continue;
				}
				String name;
				File newFile = new File(tempNameList[l]);
				if(newFile.getName().contains("期中")) {
					name = "midterm";
				}else if(newFile.getName().contains("期末")) {
					name = "terminal";
				}else if(newFile.getName().contains("语言程序设计")) {
					name = "MOOC";
				}else {
					name = "pta";
				}
				result = ExcelUtil.readExcel(newFile);
				for(int i = 0 ;i < result.size() ;i++){
					for(int j = 0;j<result.get(i).size(); j++){
						if(result.get(i).get(j).toString().equals("学号")) begin = i+1;
						if(result.get(i).get(j).toString().contains("总分")) {
							index = j;
							break;
						}
					}
				}
				boolean flag;
				for(int i = begin; i < result.size(); i++) {
					temp = new ArrayList<Object>();
					String id = result.get(i).get(0).toString();
					flag = false;
					if(result.get(i).get(0)==null||result.get(i).get(0).toString().equals("")||result.get(i).get(1)==null||result.get(i).get(1).toString().equals("")) {
						flag = false;
					}
					else {
						String newSql2 = "select * from study where id = "+result.get(i).get(0)+" and name = '"+result.get(i).get(1)+"'";
						rs = stmt.executeQuery(newSql2);
						while(rs.next()) {
							flag = true;
						}
					}
					if(!flag) {
						temp.add(result.get(i).get(0));
						temp.add(result.get(i).get(1));
						temp.add(tempNameList[l]);
						errorAns.add(temp);
					}
					String newSql = "update study set "+name+" = (?) where id = "+id;
				//	String newSql = "update study set "+name.toString()+" = "+result.get(i).get(index).toString()+" where id = "+id;
					if(NumberUtil.isNumber(id)){
						pStatement = con.prepareStatement(newSql);
						pStatement.setString(1, result.get(i).get(index).toString());
						pStatement.addBatch();
						pStatement.executeBatch();
						con.commit();
					}
				}
			}
			
			//将合并excel文件写入新的excel
			ans = new ArrayList<ArrayList<Object>>();
			sql = "select COLUMN_NAME from information_schema.COLUMNS where table_name = 'study'";
			rs = stmt.executeQuery(sql);
			cowList = new ArrayList<Object>();
			while(rs.next()) {
				cowList.add(rs.getString(1));
			}
			ans.add(cowList);
			rs.close();
			String newSql="select * from study";
			rs = stmt.executeQuery(newSql);
			while(rs.next()) {
				cowList = new ArrayList<Object>();
				for(int i = 1; i <= 11; i++)
					if(rs.getString(i)==null) {
						cowList.add("");
					}
					else cowList.add(rs.getString(i));
				ans.add(cowList);
			}
			ExcelUtil.writeExcel(ans, path+"/java网络汇总.xlsx");
			ExcelUtil.writeExcel(errorAns, path+"/错误汇总表.xlsx");
		}catch (SQLException sqle) {
			sqle.printStackTrace();
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			JDBCUtil.realeaseAll(rs, stmt, con, pStatement);
		}
	}

项目代码扫描结果及改正

根据提示的错误,修改相关的错误。

尚待改进

界面美化,数据库远程连接等等。

posted on 2019-01-18 11:15  ifcan  阅读(549)  评论(0编辑  收藏  举报

导航