Java 实现追加excle文件内容

时间：2023-03-08 20:21:17

Java 实现追加excle文件内容

一、示例一：excle（.xlsx）

//jar

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.FileWriter;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.List;

import java.util.logging.Logger;

import org.apache.poi.poifs.filesystem.POIFSFileSystem;

import org.apache.poi.ss.usermodel.WorkbookFactory;

import org.apache.poi.xssf.usermodel.XSSFCell;

import org.apache.poi.xssf.usermodel.XSSFRow;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import org.dom4j.Document;

import org.dom4j.DocumentException;

import org.dom4j.DocumentHelper;

import org.dom4j.io.OutputFormat;

import org.dom4j.io.XMLWriter;

import com.xyzq.kettle.dao.KettleDao;

import com.xyzq.kettle.entity.KettleEntity;

import com.xyzq.pub.Pub;

    //实现方法

    public void makeExcle(List<KettleEntity> list){

        logger.info("生成excle:start");

        String filepath = exl_sh_path+"/"+list.get(0).getSysName();

        String filename = "P_gp_"+list.get(0).getSysName()+".xlsx" ;

        //判断文件夹是否存在，不存在则创建

        try {

            Pub.checkPath(filepath);

        } catch (InterruptedException e1) {

            e1.printStackTrace();

            logger.info("文件夹创建异常："+e1.toString());

        }

        //判断文件是否存在，存在则追加，否则新增

        // todo:

        File file = new File(filepath+"/"+filename);

        XSSFWorkbook wb =null;

        XSSFSheet sheet = null;

        InputStream input = null;

        FileOutputStream output=null;

        try {

            wb = new XSSFWorkbook();

            input = new FileInputStream(file);

            wb = (XSSFWorkbook) WorkbookFactory.create(input);

            if(wb != null){

                //获取文件的指定工作表

                sheet =wb.getSheet("job");

                output = new FileOutputStream(filepath+"/"+filename,false);

                //获取最大行数

                //int rownum = sheet.getPhysicalNumberOfRows();

                int index = sheet.getLastRowNum()+1;

                logger.info("index>>>:"+index);

                String cmdStr = "";

                if(list.size() > 0){

                    for(int i = 0; i < list.size(); i++){

                        cmdStr = "";

                        if("自然日".equals(list.get(i).getDataType())){

                            cmdStr = "sh "+pan_path+"/"+list.get(i).getSysName()+"/"+list.get(i).getPanName()+".sh -p${yes_date} -s${yes_date} -e${curr_date}";

                        }else if("交易日".equals(list.get(i).getDataType())){

                            cmdStr = "sh "+pan_path+"/"+list.get(i).getSysName()+"/"+list.get(i).getPanName()+".sh -p${start_date} -s${start_date} -e${end_date}";

                        }

                        //插入excle

                        XSSFRow row = null;

                        row = sheet.createRow(index+i);

                        XSSFCell cell_flow = row.createCell(0);

                        XSSFCell cell_job = row.createCell(2);

                        XSSFCell cell_cmd = row.createCell(6);

                        cell_flow.setCellValue("F_gp_"+list.get(i).getSysName());

                        cell_job.setCellValue("J_gp_"+list.get(i).getTableName());

                        cell_cmd.setCellValue(cmdStr);

                    }

                }else{

                    logger.info("待处理数据为空");

                }

                output.flush();

                wb.write(output);

                if (input != null){

                    input.close();

                }

                output.close();

            }

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

            logger.info("makeExcle>获取exlce数据异常:"+e.toString());

        }

        logger.info("生成excle:end");

    }

二、示例二：excle2007（.xls）

//jar

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.FileWriter;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.List;

import java.util.logging.Logger;

import org.apache.poi.poifs.filesystem.POIFSFileSystem;

import org.apache.poi.ss.usermodel.WorkbookFactory;

import org.apache.poi.xssf.usermodel.XSSFCell;

import org.apache.poi.xssf.usermodel.XSSFRow;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import org.dom4j.Document;

import org.dom4j.DocumentException;

import org.dom4j.DocumentHelper;

import org.dom4j.io.OutputFormat;

import org.dom4j.io.XMLWriter;

import com.xyzq.kettle.dao.KettleDao;

import com.xyzq.kettle.entity.KettleEntity;

import com.xyzq.pub.Pub;

　　//实现方法

　　public void makeExcle2007(List<KettleEntity> list){

        logger.info("生成excle:start");

        String filepath = exl_sh_path+"/"+list.get(0).getSysName();

        String filename = "P_gp_"+list.get(0).getSysName()+".xlsx" ;

        //判断文件夹是否存在，不存在则创建

        try {

            Pub.checkPath(filepath);

        } catch (InterruptedException e1) {

            e1.printStackTrace();

            logger.info("文件夹创建异常："+e1.toString());

        }

        //判断文件是否存在，存在则追加，否则新增

        // todo:

        try {

            FileInputStream fileInput = new FileInputStream(filepath+"/"+filename);

            POIFSFileSystem poiFile = new POIFSFileSystem(fileInput);

            XSSFWorkbook wb = new XSSFWorkbook(fileInput);

            XSSFSheet sheet = null;

            if(wb != null){

                //获取文件的指定工作表

                sheet =wb.getSheet("job");

                //获取最大行数

                //int rownum = sheet.getPhysicalNumberOfRows();

                int index = sheet.getLastRowNum();

                FileOutputStream out=new FileOutputStream(filepath+"/"+filename);

                XSSFRow row = null;

                String cmdStr = "";

                if(list.size() > 0){

                    for(int i = 0; i < list.size(); i++){

                        cmdStr = "";

                        if("自然日".equals(list.get(i).getDataType())){

                            cmdStr = "sh "+pan_path+"/"+list.get(i).getSysName()+"/"+list.get(i).getPanName()+".sh -p${yes_date} -s${yes_date} -e${curr_date}";

                        }else if("交易日".equals(list.get(i).getDataType())){

                            cmdStr = "sh "+pan_path+"/"+list.get(i).getSysName()+"/"+list.get(i).getPanName()+".sh -p${start_date} -s${start_date} -e${end_date}";

                        }

                        //插入excle

                        row = sheet.createRow(index+i);

                        XSSFCell cell_flow = row.createCell(0);

                        XSSFCell cell_job = row.createCell(2);

                        XSSFCell cell_cmd = row.createCell(6);

                        cell_flow.setCellValue("F_gp_"+list.get(i).getSysName());

                        cell_job.setCellValue("J_gp_"+list.get(i).getTableName());

                        cell_cmd.setCellValue(cmdStr);

                    }

                }else{

                    logger.info("待处理数据为空");

                }

                out.flush();

                wb.write(out);

                out.close();

            }

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

            logger.info("makeExcle>获取exlce数据异常:"+e.toString());

        }

        logger.info("生成excle:end");

    }

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