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- package com.goafanti.common.utils;
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.io.PrintWriter;
- import java.io.UnsupportedEncodingException;
- import java.net.URLEncoder;
- import java.util.regex.Pattern;
- import javax.servlet.http.HttpServletResponse;
- import org.apache.poi.hssf.usermodel.HSSFWorkbook;
- import org.springframework.beans.factory.annotation.Value;
- import org.springframework.web.multipart.MultipartFile;
- import com.goafanti.common.enums.AttachmentType;
- public class FileUtils {
- @Value(value = "${upload.private.path}")
- private String uploadPrivatePath = null;
- private static final Pattern SLASH_PATTERN = Pattern.compile("^/|/$");
- private static final String SLASH = "/";
- private static final String UNDERLINE = "_";
- /**
- * response 输出JSON
- *
- * @param hresponse
- * @param resultMap
- * @throws IOException
- */
- public static void out(HttpServletResponse response, String jsonStr) {
- PrintWriter out = null;
- try {
- response.setHeader("Content-Type", "application/json");
- response.setCharacterEncoding("UTF-8");
- out = response.getWriter();
- out.println(jsonStr);
- } catch (Exception e) {
- LoggerUtils.fmtError(FileUtils.class, e, "输出数据失败");
- } finally {
- if (null != out) {
- out.flush();
- out.close();
- }
- }
- }
- /**
- * Excel报表导出
- *
- * @param response
- * @param fileName
- * @param workbook
- */
- public static void downloadExcel(HttpServletResponse response, String fileName, HSSFWorkbook workbook) {
- String fn = null;
- try {
- fn = URLEncoder.encode(fileName, "UTF-8");
- } catch (UnsupportedEncodingException e1) {
- fn = fileName;
- }
- response.setContentType("application/x-download;charset=UTF-8");
- response.setHeader("Content-Disposition", "attachment; filename=\"" + fn + "\";");
- OutputStream out = null;
- try {
- out = response.getOutputStream();
- workbook.write(out);
- } catch (IOException e) {
- LoggerUtils.fmtError(FileUtils.class, e, "输出Excel失败");
- } finally {
- if (null != out) {
- try {
- out.flush();
- out.close();
- } catch (IOException e) {
- out = null;
- }
- }
- }
- }
- /**
- * 根据上传文件 拼接fileName
- *
- * @param mf
- * @param isPrivate
- * @param sign
- * @param path
- * @return
- */
- public static String mosaicFileName(MultipartFile mf, boolean isPrivate, String sign, String path, String uid) {
- String suffix = mf.getOriginalFilename().substring(mf.getOriginalFilename().lastIndexOf("."));
- boolean uniq = false;
- if (sign.indexOf("demand_picture") != -1|| sign.indexOf("achievement_picture") != -1 || sign.indexOf("user_picture")!=-1) {
- uniq = true;
- }
- String fileName = "";
- if (isPrivate || StringUtils.isNotBlank(sign)) {
- if (uniq) {
- fileName = path + uid + "/" + System.nanoTime() + "_" + sign + suffix;
- } else {
- fileName = path + uid + "/" + sign + suffix;
- }
- } else {
- fileName = path + uid + "/" + System.nanoTime() + suffix;
- }
- return fileName;
- }
- /**
- * 获取下载文件名称
- *
- * @param path
- * @return
- */
- public static String getDownloadFileName(String path) {
- if (StringUtils.isBlank(path) || path.lastIndexOf(".") < 0) {
- return null;
- }
- String prefix = "附件";
- String suffix = path.substring(path.lastIndexOf("."));
- return prefix + suffix;
- }
- public static String getSuffix(String path) {
- if (StringUtils.isBlank(path) || path.lastIndexOf(".") < 0) {
- return "";
- }
- return path.substring(path.lastIndexOf("."));
- }
- /**
- * 拼接文件路径
- *
- * @param root
- * @param params
- * @return
- */
- public static String buildFilePath(String... params) {
- StringBuilder sb = new StringBuilder();
- if (params != null) {
- for (String s : params) {
- sb.append(SLASH);
- sb.append(SLASH_PATTERN.matcher(s).replaceAll(""));
- }
- }
- return sb.toString();
- }
- /**
- * 拼接文件名字
- *
- * @param root
- * @param params
- * @return
- */
- public static String buildFileName(String... params) {
- return StringUtils.join(params, UNDERLINE);
- }
- // year
- private static String subStr(String s) {
- return "企业" + s.substring(s.lastIndexOf(UNDERLINE) + 1, s.lastIndexOf("."));
- }
- public static boolean deleteFile(String realFilePath) {
- return new File(realFilePath).delete();
- }
- /**
- *
- * @param response
- * @param fileName
- * @param realFilePath
- */
- public static void downloadFile(HttpServletResponse response, String fileName, String realFilePath) {
- InputStream in = null;
- OutputStream out = null;
- byte[] buffer = new byte[8 * 1024];
- try {
- File file = new File(realFilePath);
- in = new FileInputStream(file);
- out = response.getOutputStream();
- // 设置文件MIME类型
- response.setContentType("application/octet-stream");
- fileName = java.net.URLEncoder.encode(fileName, "UTF-8");
- response.setHeader("Content-Disposition", "attachment; filename=" + fileName);
- response.setHeader("Content-Length", String.valueOf(file.length()));
- for (;;) {
- int bytes = in.read(buffer);
- if (bytes == -1) {
- break;
- }
- out.write(buffer, 0, bytes);
- }
- } catch (IOException e) {
- LoggerUtils.fmtError(FileUtils.class, e, "IO错误:%s", e.getMessage());
- } finally {
- try {
- if (in != null) {
- in.close();
- }
- } catch (IOException e) {
- in = null;
- LoggerUtils.fmtError(FileUtils.class, e, "IO错误:%s", e.getMessage());
- }
- try {
- if (out != null) {
- out.close();
- }
- } catch (IOException e) {
- out = null;
- LoggerUtils.fmtError(FileUtils.class, e, "IO错误:%s", e.getMessage());
- }
- }
- }
- }
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