package com.zt.life.export.service;
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import com.deepoove.poi.XWPFTemplate;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import org.apache.poi.xwpf.usermodel.XWPFDocument;
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import sun.misc.BASE64Encoder;
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import javax.servlet.ServletOutputStream;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.*;
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import java.net.URLEncoder;
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public class DownloadService {
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/**
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* 导出Excel模板
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*
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* @param response
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* @param fullPath
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* @param fileName
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*/
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public static void download(HttpServletResponse response, String fullPath, String fileName) {
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response.setContentType("text/html;charset=UTF-8");
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BufferedInputStream bis = null;
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BufferedOutputStream bos = null;
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String contentType = "application/octet-stream";
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try {
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response.setContentType(contentType);
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response.setHeader("Content-disposition",
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"attachment; filename=" + new String(fileName.getBytes("utf-8"), "ISO8859-1"));
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byte[] buff = new byte[2048];
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bis = new BufferedInputStream(new FileInputStream(fullPath));
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bos = new BufferedOutputStream(response.getOutputStream());
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int bytesRead;
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while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
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bos.write(buff, 0, bytesRead);
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}
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} catch (IOException e) {
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} finally {
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try {
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if (bis != null) {
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bis.close();
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}
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if (bos != null) {
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bos.close();
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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// public static void download(HttpServletResponse response, XWPFDocument
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// document, String fileName) {
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// response.setContentType("text/html;charset=UTF-8");
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//
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// String contentType = "application/octet-stream";
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// try {
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// response.setContentType(contentType);
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// response.setHeader("Content-disposition",
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// "attachment; filename=" + new String(fileName.getBytes("utf-8"),
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// "ISO8859-1"));
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// ServletOutputStream out = response.getOutputStream();
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// document.write(out);
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// out.flush();
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// out.close();
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// } catch (IOException e) {
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// } finally {
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// try {
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// document.close();
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// } catch (IOException e) {
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// e.printStackTrace();
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// }
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// }
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//
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// }
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public static void download(HttpServletRequest request, HttpServletResponse response, XWPFTemplate template,
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String fileName) throws UnsupportedEncodingException {
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// 处理ie浏览器 或 火狐浏览器 乱码问题
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String fileNameEncoder = getNameEncoder(request, fileName);
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response.setContentType("text/html;charset=UTF-8");
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String contentType = "application/octet-stream";
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try {
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response.setContentType(contentType);
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response.setHeader("Content-disposition", "attachment; filename=" + fileNameEncoder);
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ServletOutputStream out = response.getOutputStream();
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template.write(out);
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out.flush();
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out.close();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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template.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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public static void download(HttpServletRequest request, HttpServletResponse response, XWPFDocument document,
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String fileName) throws UnsupportedEncodingException {
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// 处理ie浏览器 或 火狐浏览器 乱码问题
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String fileNameEncoder = getNameEncoder(request, fileName);
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response.setContentType("text/html;charset=UTF-8");
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String contentType = "application/octet-stream";
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try {
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response.setContentType(contentType);
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response.setHeader("Content-disposition", "attachment; filename=" + fileNameEncoder);
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ServletOutputStream out = response.getOutputStream();
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document.write(out);
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out.flush();
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out.close();
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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document.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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public static void downloadExecl(HttpServletResponse response, XSSFWorkbook template, String fileName) {
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response.setContentType("text/html;charset=UTF-8");
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String contentType = "application/octet-stream";
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try {
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response.setContentType(contentType);
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response.setHeader("Content-disposition",
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"attachment; filename=" + new String(fileName.getBytes("utf-8"), "ISO8859-1"));
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ServletOutputStream out = response.getOutputStream();
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template.write(out);
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out.flush();
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out.close();
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} catch (IOException e) {
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} finally {
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try {
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template.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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/**
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* 指定文件导出模板
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* @param excelPath 模板路径
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* @param excelName 导出模板名称
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* @param response
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* @param request
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* @throws IOException
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*/
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public static void exportModelPath(String excelPath,String excelName,File file,HttpServletResponse response,HttpServletRequest request) throws IOException{
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InputStream fis = new BufferedInputStream(new FileInputStream(excelPath));
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int a = -1;
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byte[] bytes = new byte[fis.available()];
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int index = 0;
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while ((a = fis.read()) > -1) {
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bytes[index] = (byte) a;
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index++;
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}
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response.reset(); //清空
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response.setHeader("Content-Disposition", "attachment;filename=" + DownloadService.getNameEncoder(request, excelName));
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response.addHeader("Content-Length", "" + file.length());
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OutputStream ops = new BufferedOutputStream(response.getOutputStream());
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response.setContentType("application/octet-stream");
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ops.write(bytes);
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fis.close();
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ops.flush();
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ops.close();
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}
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/**
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* 处理ie浏览器 或 火狐浏览器 文件名乱码问题
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*
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* @param request
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* @param fileName
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* @return
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* @throws UnsupportedEncodingException
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*/
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public static String getNameEncoder(HttpServletRequest request, String fileName)
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throws UnsupportedEncodingException {
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// 获得请求头中的User-Agent
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String agent = request.getHeader("User-Agent");
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// 根据不同浏览器进行不同的编码
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String fileNameEncoder = "";
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if (agent.contains("MSIE") || agent.contains("Trident")) {
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// IE浏览器
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fileNameEncoder = URLEncoder.encode(fileName, "utf-8");
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fileNameEncoder = fileNameEncoder.replace("+", " ");
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} else if (agent.contains("Firefox")) {
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// 火狐浏览器
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BASE64Encoder base64Encoder = new BASE64Encoder();
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fileNameEncoder = "=?utf-8?B?" + base64Encoder.encode(fileName.getBytes("utf-8")) + "?=";
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} else {
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// 其它浏览器
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fileNameEncoder = URLEncoder.encode(fileName, "utf-8");
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}
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return fileNameEncoder;
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}
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/**
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* 导出Excel模板
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*
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* @param response
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* @param fullPath
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* @param fileName
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*/
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public static void downloadZip(HttpServletResponse response, HttpServletRequest request, String fullPath,
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String fileName) {
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BufferedInputStream bis = null;
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BufferedOutputStream bos = null;
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try {
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// 处理ie浏览器 或 火狐浏览器 乱码问题
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String fileNameEncoder = getNameEncoder(request, fileName);
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response.setContentType("text/html;charset=UTF-8");
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String contentType = "application/octet-stream";
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response.setContentType(contentType);
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response.setHeader("Content-disposition", "attachment; filename=" + fileNameEncoder);
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byte[] buff = new byte[2048];
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bis = new BufferedInputStream(new FileInputStream(fullPath));
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bos = new BufferedOutputStream(response.getOutputStream());
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int bytesRead;
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while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
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bos.write(buff, 0, bytesRead);
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}
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} catch (IOException e) {
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} finally {
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try {
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if (bis != null) {
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bis.close();
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}
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if (bos != null) {
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bos.close();
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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}
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