周报导入导出（excel）

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.ss.usermodel.BorderStyle;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;



/**
 * 
* @ClassName: ExcelWriteForWeeklyPaper 
* @Description: 周报导出 
* @author yabo.liu 
* @date 2019年8月23日 下午2:08:57 
*
 */
public class ExcelWriteForWeeklyPaper {
    public static void main(String[] args) {
        //读取excel路径
        String excelPath = "E:\excel\new-weekly-list.xlsx";
        System.out.println("excel路径为："+excelPath);
        //读取excel数据
        JSONArray jsonArray = getExcelData1(excelPath);
        //往excel里写数据，key需要跟sheet页的key相同，值为需要写的数据
        writeWeeklyPaper(jsonArray);
    }
    
    public static JSONArray getExcelData1(String excelPath){
        JSONArray jsonArray = new JSONArray();
        try {
            File excel = new File(excelPath);
            if (excel.isFile() && excel.exists()) {   //判断文件是否存在
                String[] split = excel.getName().split("\.");  //.是特殊字符，需要转义！！！！！
                Workbook wb;
                //根据文件后缀（xls/xlsx）进行判断
                if ( "xls".equals(split[1])){
                    FileInputStream fis = new FileInputStream(excel);   //文件流对象
                    wb = new HSSFWorkbook(fis);
                }else if ("xlsx".equals(split[1])){
                    wb = new XSSFWorkbook(excel);
                }else {
                    System.out.println("文件类型错误!");
                    return null;
                }
                //开始解析
                Sheet sheet = wb.getSheetAt(0);//读取sheet 0
                int firstRowIndex = sheet.getFirstRowNum()+1;//第一行是列名，所以不读
                int lastRowIndex = sheet.getLastRowNum();
                for(int rIndex = firstRowIndex; rIndex <= lastRowIndex; rIndex++) {//遍历行
                    JSONObject jsonObject = new JSONObject(); 
                    Row row = sheet.getRow(rIndex);
                    if (row != null) {
                        int firstCellIndex = row.getFirstCellNum();
                        int lastCellIndex = row.getLastCellNum();
                        for (int cIndex = firstCellIndex; cIndex < lastCellIndex; cIndex++) {//遍历列
                            Cell cell = row.getCell(cIndex);
                            if (cell != null) {
                                if (cIndex == 0) {
                                    jsonObject.put("idNo",cell.toString());
                                }else if (cIndex == 1){
                                    jsonObject.put("taskName",cell.toString());
                                }else if (cIndex == 2) {
                                    jsonObject.put("taskStatus",cell.toString());
                                }else if (cIndex == 3) {
                                    jsonObject.put("taskProgress",cell.toString());
                                }else if (cIndex == 4) {
                                    jsonObject.put("lastTaskStatus",cell.toString());
                                }else if (cIndex == 5) {
                                    jsonObject.put("lastTaskProgress",cell.toString());
                                }else if (cIndex == 6) {
                                    jsonObject.put("head",cell.toString());
                                }
                            }
                        }
                    }
                    jsonArray.add(jsonObject);
                }
            } else {
                System.out.println("找不到指定的文件");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return jsonArray;
    }
    
    /**
     * 周报导出信息
     */
    @SuppressWarnings("unchecked")
    public static void writeWeeklyPaper(JSONArray jsonArray){
        HSSFWorkbook wb=null;
        OutputStream fileOut=null;
        try {
            //导出模板路径地址
            FileInputStream templateFileInput = new FileInputStream("E:\excel\weeklyPaperExportModel.xls");            
            POIFSFileSystem fs = new POIFSFileSystem(templateFileInput);  
            wb = new  HSSFWorkbook(fs);  
            
            HSSFCellStyle cellStyle = wb.createCellStyle();
            cellStyle.setBorderBottom(BorderStyle.THIN);
            cellStyle.setBorderLeft(BorderStyle.THIN);
            cellStyle.setBorderRight(BorderStyle.THIN);
            cellStyle.setBorderTop(BorderStyle.THIN);
            //从第12行开始写入
            int i = 11;
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("已上线".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("待上线".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("业务复核".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("UAT测试".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("联调".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("需求确认".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("需求分析".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if (!"需求分析".equals(jsonObject.get("taskStatus"))&&!"需求确认".equals(jsonObject.get("taskStatus"))&&
                        !"开发".equals(jsonObject.get("taskStatus"))&&!"内部测试".equals(jsonObject.get("taskStatus"))&&
                        !"联调".equals(jsonObject.get("taskStatus"))&&!"UAT测试".equals(jsonObject.get("taskStatus"))&&
                        !"业务复核".equals(jsonObject.get("taskStatus"))&&!"待上线".equals(jsonObject.get("taskStatus"))&&
                        !"已上线".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(i-10), i, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), i, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), i, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), i, str2Num("G"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskStatus").toString(), i, str2Num("H"),cellStyle);
                    writeStringData(wb,jsonObject.get("lastTaskProgress").toString(), i, str2Num("I"),cellStyle);
                    writeStringData(wb,jsonObject.get("head").toString(), i, str2Num("J"),cellStyle);
                    i++;
                }
            }
            //将开发和内部测试的任务写到模板（下周任务计划从103行开始写入,行数根据模板确定）
            int j = 102;
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("开发".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(j-101), j, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), j, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), j, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), j, str2Num("H"),cellStyle);
                    j++;
                }
            }
            for(int a = 0; a < jsonArray.size(); a++){
                JSONObject jsonObject = (JSONObject) jsonArray.get(a);
                if ("内部测试".equals(jsonObject.get("taskStatus"))) {
                    writeStringData(wb,""+(j-101), j, str2Num("A"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskName").toString(), j, str2Num("B"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskStatus").toString(), j, str2Num("F"),cellStyle);
                    writeStringData(wb,jsonObject.get("taskProgress").toString(), j, str2Num("H"),cellStyle);
                    j++;
                }
            }
            Date date = new Date();
            //将新的excel写入地址
            File file=new File("E:\excel");
            OutputStream stream=null;
            stream = new FileOutputStream(new File(file, new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+".xls"));
            wb.write(stream);
        } catch (FileNotFoundException e) {
            System.out.println("周报导出excel异常");
        } catch (IOException e) {
            System.out.println("周报导出excel异常");
        }finally {
            if(wb!=null){
                wb = null;
            }
            if(fileOut!=null){
                try {
                    fileOut.close();
                } catch (IOException e) {
                    System.out.println("周报导出excel异常");
                }
            }
        }
    };
    
    /**  
     * 向单元格写入非图片格式信息  
     * @描述：这是一个实体类，提供了相应的接口，用于操作Excel，在任意坐标处写入数据。  
     * @参数：String newContent：你要输入的内容  
     *               int beginRow ：行坐标，Excel从 0 算起  
     *               int beginCol   ：列坐标，Excel从 0 算起  
     *               style: 单元格样式
     */  
    public static void writeStringData(HSSFWorkbook wb, String newContent, int beginRow, int beginCell,HSSFCellStyle style)  
    {
        HSSFSheet sheet=wb.getSheet("项目周报");
        if(wb.getSheet("项目周报")==null){
            sheet = wb.createSheet("项目周报");
        }
        HSSFRow  row  = sheet.getRow(beginRow);   
        if(null == row ){  
            //如果不做空判断，你必须让你的模板文件画好边框，beginRow和beginCell必须在边框最大值以内  
            //否则会出现空指针异常  
            row = sheet.createRow(beginRow);  
        }  
        HSSFCell   cell   = row.getCell(beginCell);  
        if(null == cell){  
            cell = row.createCell(beginCell);  
        }  
        if(style!=null){
            cell.setCellStyle(style);
        }
        //向单元格中放入值  
        cell.setCellValue(newContent);      
    } 
    /**
     * 将excel列中的A、B、AA、AB等内容转换为0、1等数字
     * @param s
     * @return
     */
    private static int str2Num(String s) {
        int r = 0;
        for (int i = 0; i < s.length(); i++) {
            r = r * 26 + s.charAt(i) - 'A' + 1;
        }
        return r - 1;
    }
}