java創建excel表並同其他文件一起壓縮進壓縮包進行下載
不多說，直接上代碼。
public ServerResponse downloadFiles(Integer id) {
if (id==null||"".equals(id)){
return ServerResponse.createBySuccessMessage("請選擇要下載的文件");
}
List<ProjectResult> projectResult=projectUserMapper.getProject(id);//從數據庫獲取需要生成excel的數據
List<List<String>> lists=new ArrayList<List<String>>();
String[] label = getFormFile(projectResult, lists);//獲取excel表表頭
String zipFileNameEn=null;
String zipFilePath=null;
List<String> fileName=new ArrayList<>();
List<String> filePath=new ArrayList<>();
zipFileNameEn = "生成excel名稱";
try {
zipFilePath = addFileExcel.createExcel(zipFileNameEn,"數據表",label,lists);//生成excel文件
} catch (IOException e) {
e.printStackTrace();
}
fileName.add("物客一張表.xlsx");
filePath.add(zipFilePath);
downloadFiles(response,fileName,filePath,nasPath+"/exportFile",zipFileNameEn);
//從文件夾刪除代碼生成的excel文件
File file=new File(zipFilePath);
file.delete();
return ServerResponse.createBySuccessMessage(SuccessConstant.handleSuccess);
}
//生成excel文件並返回文件路徑
public String createExcel(String fileName,String sheetName ,String[] label, List<List<String>> list ) throws IOException {
Workbook wb = new XSSFWorkbook();
Sheet stuSheet = wb.createSheet(sheetName);
Row titleRow = stuSheet.createRow(0);
CellStyle style = wb.createCellStyle();
Cell cell = null;
//把已經寫好的標題行寫入excel文件中
for (int i = 0; i < label.length; i++) {
cell = titleRow.createCell(i);
cell.setCellValue(label[i]);
cell.setCellStyle(style);
}
//把從數據庫中取得的數據一一寫入excel文件中
Row row = null;
List<String> stuList = new ArrayList<>();
for (int i = 0; i < list.size(); i++) {
//創建list.size()行數據
row = stuSheet.createRow(i + 1);
//把值一一寫進單元格里
//設置第一列爲自動遞增的序號
for(int j=0;j<list.get(i).size();j++){
row.createCell(j).setCellValue(list.get(i).get(j));
}
}
//設置單元格寬度自適應，在此基礎上把寬度調至1.5倍
for (int i = 0; i < label.length; i++) {
stuSheet.autoSizeColumn(i, true);
stuSheet.setColumnWidth(i, stuSheet.getColumnWidth(i) * 15 / 10);
}
//獲取配置文件中保存對應excel文件的路徑，本地也可以直接寫成F：excel/stuInfoExcel路徑
String folderPath="/app/file/notice/files/temp/materialCard/";
//創建上傳文件目錄
File folder = new File(folderPath);
//如果文件夾不存在創建對應的文件夾
if (!folder.exists()) {
folder.mkdirs();
}
//設置文件名
String fileNames = fileName + ".xlsx";
String savePath = folderPath + File.separator + fileNames;
// System.out.println(savePath);
OutputStream fileOut = new FileOutputStream(savePath);
wb.write(fileOut);
fileOut.close();
//返回文件保存全路徑
return savePath;
}
//生成壓縮包文件並把所有文件壓縮進壓縮包進行下載
public void downloadFiles(HttpServletResponse response, List<String> name,
List<String> paths,String directoryPath,
String zipFileNameEn) {
java.io.File directoryFile=new java.io.File(directoryPath);
if(!directoryFile.isDirectory() && !directoryFile.exists()){
directoryFile.mkdirs();
}
//設置最終輸出zip文件的目錄+文件名
SimpleDateFormat formatter = new SimpleDateFormat("yyyyMMddHHmmss");
String zipFileName =zipFileNameEn+".zip";
String strZipPath = directoryPath+"/"+zipFileName;
ZipOutputStream zipStream = null;
FileInputStream zipSource = null;
BufferedInputStream bufferStream = null;
java.io.File zipFile = new java.io.File(strZipPath);
try{
//構造最終壓縮包的輸出流
zipStream = new ZipOutputStream(new FileOutputStream(zipFile));
for (int i = 0; i<paths.size() ;i++){
//解碼獲取真實路徑與文件名
String realFilePath = java.net.URLDecoder.decode(paths.get(i),"UTF-8");
java.io.File file = new File(realFilePath);
if(file.exists())
{
zipSource = new FileInputStream(file);//將需要壓縮的文件格式化爲輸入流
/**
* 壓縮條目不是具體獨立的文件，而是壓縮包文件列表中的列表項，稱爲條目，就像索引一樣這裏的name就是文件名,
* 文件名和之前的重複就會導致文件被覆蓋
*/
ZipEntry zipEntry = new ZipEntry(name.get(i));//在壓縮目錄中文件的名字
zipStream.putNextEntry(zipEntry);//定位該壓縮條目位置，開始寫入文件到壓縮包中
bufferStream = new BufferedInputStream(zipSource, 1024 * 10);
int read = 0;
byte[] buf = new byte[1024 * 10];
while((read = bufferStream.read(buf, 0, 1024 * 10)) != -1)
{
zipStream.write(buf, 0, read);
}
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
//關閉流
try {
if(null != bufferStream) {
bufferStream.close();
}
if(null != zipStream){
zipStream.flush();
zipStream.close();
}
if(null != zipSource){
zipSource.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
//判斷當前壓縮文件是否生成存在：true-把該壓縮文件通過流輸出給客戶端後刪除該壓縮文件
if(zipFile.exists()){
//發送給客戶端
fileUtils.downImgClient(response,zipFileName,strZipPath);
//刪除本地存儲的文件
zipFile.delete();
}
}
//獲取excel表頭
private String[] getFormFile(List<ProjectResult> projectResult, List<List<String>> lists) {
for (ProjectResult item : projectResult) {
DateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm");
List<String> tem = new ArrayList<String>();
//第一份
tem.add(item.getProjectInfo().getDeptName());
tem.add(item.getProjectInfo().getGroupNum());
tem.add(item.getProjectInfo().getGroupName());
tem.add(item.getProjectInfo().getCustManager());
tem.add(item.getProjectInfo().getTmtType());
tem.add(item.getProjectInfo().getProjectScene());
tem.add(item.getProjectInfo().getProjectName());
tem.add(item.getProjectInfo().getPlatformType());
tem.add(item.getProjectInfo().getPackageSystem());
tem.add(item.getProjectInfo().getPackageAll());
//第二份
tem.add(format.format(item.getProjectCpu().getAgreementDate()));
tem.add(item.getProjectCpu().getProjectDiscount()+"%");
tem.add(item.getProjectCpu().getProof());
tem.add(item.getProjectCpu().getLead());
tem.add(format.format(item.getProjectCpu().getValidDate()));
tem.add(format.format(item.getProjectCpu().getValidEndDate()));
tem.add(item.getProjectCpu().getMarketingNum());
tem.add(item.getProjectCpu().getMarkejobNum());
tem.add(item.getProjectCpu().getDiscountsWay());
tem.add(item.getProjectCpu().getSystemDiscount()+"%");
tem.add(item.getProjectCpu().getBackMoneyRatio()+"%");
tem.add(Integer.toString(item.getProjectCpu().getSaleOpenNum()));
tem.add(item.getProjectCpu().getSignFileName());
tem.add(item.getProjectCpu().getMarketingFileName());
//第三份
tem.add(format.format(item.getProjectUser().getOpenDate()));
tem.add(Integer.toString(item.getProjectUser().getOpenNum()));
tem.add(item.getProjectUser().getOpenName());
tem.add(item.getProjectUser().getAgreementIpv());
tem.add(item.getProjectUser().getHandlingFormIpv());
tem.add(item.getProjectUser().getApn());
tem.add(item.getProjectUser().getApnName());
tem.add(Integer.toString(item.getProjectUser().getOpenAll()));
tem.add(item.getProjectUser().getAgreementFileName());
tem.add(item.getProjectUser().getHandlingFileName());
tem.add(item.getProjectUser().getBusinessFileName());
tem.add(item.getProjectUser().getAutFileName());
tem.add(item.getProjectUser().getCardFileName());
tem.add(item.getProjectUser().getPortraitFileName());
tem.add(item.getProjectUser().getNumberFileName());
lists.add(tem);
}
return new String[]{"歸屬", "集團編號", "集團名稱", "客戶經理", "行業類型", "項目場景", "項目名稱", "卡平臺類型",
"套餐資費體系", "套餐名稱+套餐程控資費", "客戶協議簽訂時間", "項目簽約折扣", "簽報文號", "簽報審批領導",
"簽報有效起始時間","簽報有效終止時間", "營銷案編號","營銷活動編號", "優惠實現方式", "系統折扣", "饋贈金返充比例",
"優惠開戶數", "簽報文件上傳", "營銷案上傳","開戶時間", "本次開戶數量", "開戶戶名", "協議版本", "受理單版本",
"是否APN", "APN名稱", "累計開戶量", "協議上傳", "受理單上傳",
"營業執照上傳", "授權書上傳", "經辦人身份證正反面上傳", "人像採集上傳", "號碼清單上傳"};
}
