252 lines
8.4 KiB
Java
252 lines
8.4 KiB
Java
package com.base.util;
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import java.io.BufferedInputStream;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.OutputStream;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import com.amarsoft.are.ARE;
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import com.amarsoft.awe.Configure;
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public class DownloadAttUtil {
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public static void downloadAppIOS(String sFileName, String sPath,
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HttpServletResponse response) throws Exception {
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// sFileName = URLEncoder.encode(sFileName, "GBK");
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sFileName = new String(sFileName.getBytes(), "ISO-8859-1");
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response.reset();
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response.setHeader("Content-disposition", "attachment; filename="
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+ sFileName);
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File file = new File(sPath);
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response.setContentLength((int) file.length());
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FileInputStream fileInputStream = null;
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BufferedInputStream bufferedInputStream = null;
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OutputStream outputStream = null;
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try {
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response.setContentType("application/octet-stream");// 指明response的返回对象是文件流
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// 读出文件到response
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// 这里是先需要把要把文件内容先读到缓冲区
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// 再把缓冲区的内容写到response的输出流供用户下载
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fileInputStream = new FileInputStream(file);
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bufferedInputStream = new BufferedInputStream(
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fileInputStream);
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byte[] b = new byte[bufferedInputStream.available()];
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bufferedInputStream.read(b);
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outputStream = response.getOutputStream();
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outputStream.write(b);
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} catch (Exception e) {
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ARE.getLog().error(e);
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throw new Exception("输入流文件出现异常 ：" + e);
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} finally {
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// 人走带门
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bufferedInputStream.close();
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outputStream.flush();
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outputStream.close();
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fileInputStream.close();
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}
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//
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//
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//
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//
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// try (InputStream in = new FileInputStream(sPath)) {
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// FileUtils.copyFile(new File(sPath), response.getOutputStream());
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// } catch (Exception e) {
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// ARE.getLog().error(e);
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// throw new Exception("输入流文件出现异常 ：" + e);
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// }
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}
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public static void downloadAppAndroid(String sFileName, String sPath,
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HttpServletResponse response) throws Exception {
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sFileName = new String(sFileName.getBytes(), "ISO-8859-1");
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response.reset();
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response.setHeader("Content-disposition", "attachment; filename="
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+ sFileName);
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File file = new File(sPath);
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response.setContentLength((int) file.length());
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FileInputStream fileInputStream = null;
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BufferedInputStream bufferedInputStream = null;
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OutputStream outputStream = null;
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try {
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response.setContentType("application/octet-stream");// 指明response的返回对象是文件流
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// 读出文件到response
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// 这里是先需要把要把文件内容先读到缓冲区
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// 再把缓冲区的内容写到response的输出流供用户下载
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fileInputStream = new FileInputStream(file);
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bufferedInputStream = new BufferedInputStream(
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fileInputStream);
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byte[] b = new byte[bufferedInputStream.available()];
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bufferedInputStream.read(b);
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outputStream = response.getOutputStream();
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outputStream.write(b);
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} catch (Exception e) {
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ARE.getLog().error(e);
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throw new Exception("输入流文件出现异常 ：" + e);
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} finally {
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// 人走带门
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bufferedInputStream.close();
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outputStream.flush();
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outputStream.close();
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fileInputStream.close();
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}
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}
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/**
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* 描述：下载附件设置response
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*
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* @param fileName
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* @param path
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* @param fileSize
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* @param response
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* @param request
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* @throws Exception
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*/
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public static void downloadAtt(String sFileName, String sPath,
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String sFileSize, HttpServletResponse response,
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HttpServletRequest request, String sDevType) throws Exception {
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if ("ios".equals(sDevType))
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sFileName = new String(sFileName.getBytes(), "ISO-8859-1");
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else
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sFileName = new String(sFileName.getBytes(), "ISO-8859-1");
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response.reset();
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response.setHeader("Content-disposition", "attachment; filename="
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+ sFileName);
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response.setContentType("application/octet-stream");// 指明response的返回对象是文件流
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HttpSession session;
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Configure CurConfig;
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session = request.getSession(true);
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if ((session == null) || (session.getAttributeNames() == null)) {
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ARE.getLog().error("读取配置文件错误！请检查配置文件。");
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throw new Exception("------Timeout------");
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}
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CurConfig = Configure.getInstance(session.getServletContext());
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if (CurConfig == null) {
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ARE.getLog().error("读取配置文件错误！请检查配置文件。");
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throw new ServletException("读取配置文件错误！请检查配置文件。");
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}
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String path1 = CurConfig.getConfigure("FileSavePath");
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File file = new File(path1 + "/" + sPath);
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if (!file.exists()) {
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ARE.getLog().error("读取文件错误！请检查[文件。");
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throw new ServletException("读取文件错误！请检查[文件。");
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}
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response.setContentLength((int) file.length());
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// if (sFileSize != null && !"".equals(sFileSize)) {
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// response.setContentLength(Integer.valueOf(sFileSize));
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// } else {
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// }
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FileInputStream fileInputStream = null;
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BufferedInputStream bufferedInputStream = null;
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OutputStream outputStream = null;
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try {
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// 读出文件到response
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// 这里是先需要把要把文件内容先读到缓冲区
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// 再把缓冲区的内容写到response的输出流供用户下载
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fileInputStream = new FileInputStream(file);
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bufferedInputStream = new BufferedInputStream(
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fileInputStream);
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byte[] b = new byte[bufferedInputStream.available()];
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bufferedInputStream.read(b);
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outputStream = response.getOutputStream();
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outputStream.write(b);
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} catch (Exception e) {
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ARE.getLog().error(e);
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throw new Exception("输入流文件出现异常 ：" + e);
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} finally {
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// 人走带门
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bufferedInputStream.close();
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outputStream.flush();
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outputStream.close();
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fileInputStream.close();
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}
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}
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/**
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* 描述：设置response编码 编码默认UTF-8
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*
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* @param response
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* @param sCharset
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*/
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public static void setCharset(HttpServletResponse response, String sCharset) {
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if (null == sCharset)
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sCharset = "";
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if (sCharset.length() < 1)
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sCharset = "UTF-8";
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response.setContentType("text/html; charset=" + sCharset);
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}
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/**
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* 描述：下载附件设置response
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*
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* @param fileName
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* @param path
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* @param fullpath
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* @param fileSize
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* @param response
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* @param request
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* @throws Exception
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*/
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public static void downloadAtt(String sFileName, String sPath,
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String sFileSize, HttpServletResponse response,
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HttpServletRequest request, String sDevType,String fullpath) throws Exception {
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if ("ios".equals(sDevType))
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sFileName = new String(sFileName.getBytes(), "ISO-8859-1");
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else
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sFileName = new String(sFileName.getBytes(), "ISO-8859-1");
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response.reset();
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response.setHeader("Content-disposition", "attachment; filename="
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+ sFileName);
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response.setContentType("application/octet-stream");// 指明response的返回对象是文件流
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HttpSession session;
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Configure CurConfig;
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session = request.getSession(true);
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if ((session == null) || (session.getAttributeNames() == null)) {
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ARE.getLog().error("读取配置文件错误！请检查配置文件。");
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throw new Exception("------Timeout------");
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}
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CurConfig = Configure.getInstance(session.getServletContext());
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if (CurConfig == null) {
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ARE.getLog().error("读取配置文件错误！请检查配置文件。");
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throw new ServletException("读取配置文件错误！请检查配置文件。");
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}
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File file = new File(fullpath);
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if (!file.exists()) {
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ARE.getLog().error("读取文件错误！请检查[文件。");
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throw new ServletException("读取文件错误！请检查[文件。");
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}
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response.setContentLength((int) file.length());
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FileInputStream fileInputStream = null;
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BufferedInputStream bufferedInputStream = null;
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OutputStream outputStream = null;
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try {
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// 读出文件到response
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// 这里是先需要把要把文件内容先读到缓冲区
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// 再把缓冲区的内容写到response的输出流供用户下载
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fileInputStream = new FileInputStream(file);
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bufferedInputStream = new BufferedInputStream(
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fileInputStream);
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byte[] b = new byte[bufferedInputStream.available()];
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bufferedInputStream.read(b);
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outputStream = response.getOutputStream();
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outputStream.write(b);
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} catch (Exception e) {
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ARE.getLog().error(e);
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throw new Exception("输入流文件出现异常 ：" + e);
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} finally {
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// 人走带门
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bufferedInputStream.close();
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outputStream.flush();
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outputStream.close();
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fileInputStream.close();
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}
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}
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} |