package com.chinada.dms.controller.common;
import com.chinada.dms.configure.BootdoConfig;
import com.chinada.dms.utils.FileUtil;
import com.chinada.dms.utils.UploadUtils;
import com.sys.lib.exception.ServiceErrorException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import sun.misc.BASE64Encoder;
/*import sun.misc.BASE64Encoder;*/
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
/**
* 下载--公共接口
* ysp
* 2019-6-2
*/
@RestController
@RequestMapping(value = "/img/common")
public class DownloadController {
@Autowired
private BootdoConfig bootdoConfig;
public static List<String> filelist;
//【第一版批量下载】
@RequestMapping(value = "/downloadList", method = RequestMethod.GET)
@ResponseBody
public void downloadList(HttpServletRequest request, HttpServletResponse response, String filePath){
filelist=new ArrayList<>();;//全局变量置空
String filePlace=bootdoConfig.getUploadPath()+"inquisitorMgr";
String zipName = "download.zip";
String zipFilePath = filePlace+zipName;
List<String> list=getFileList(filePlace);
try{
//压缩文件
File zip = new File(zipFilePath);
if (!zip.exists()){
zip.createNewFile();
}
//创建zip文件输出流
ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zip));
this.zipFile(filePlace,zipName, zipFilePath,list,zos);
zos.close();
response.setHeader("Content-disposition", "attachment;filename="+zipName);//设置下载的压缩文件名称
OutputStream out = response.getOutputStream();
//将打包后的文件写到客户端，输出的方法同上，使用缓冲流输出
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(zipFilePath));
byte[] buff = new byte[bis.available()];
bis.read(buff);
bis.close();
out.write(buff);//输出数据文件
out.flush();//释放缓存
out.close();//关闭输出流
}catch (IOException ioe){
ioe.printStackTrace();
}
}
//【获取目录下所有文件】
public static List<String> getFileList(String strPath) {
File dir = new File(strPath);
File[] files = dir.listFiles(); // 该文件目录下文件全部放入数组
if (files != null) {
for (int i = 0; i < files.length; i++) {
String fileName = files[i].getName();
if (files[i].isDirectory()) { // 判断是文件还是文件夹
getFileList(files[i].getAbsolutePath()); // 获取文件绝对路径
} else {
String strFileName = files[i].getAbsolutePath();
//System.out.println("---" + strFileName);
filelist.add(strFileName);
}
}
}
return filelist;
}
//【文件遍历，压缩打包】
private String zipFile(String zipBasePath, String zipName, String zipFilePath, List<String> filePaths,ZipOutputStream zos) throws IOException {
//循环读取文件路径集合，获取每一个文件的路径
for(String filePath : filePaths){
File inputFile = new File(filePath); //根据文件路径创建文件
if(inputFile.exists()) { //判断文件是否存在
if (inputFile.isFile()) { //判断是否属于文件，还是文件夹
//创建输入流读取文件
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(inputFile));
//将文件写入zip内，即将文件进行打包
zos.putNextEntry(new ZipEntry(inputFile.getName()));
//写入文件的方法，同上
int size = 0;
byte[] buffer = new byte[1024]; //设置读取数据缓存大小
while ((size = bis.read(buffer)) > 0) {
zos.write(buffer, 0, size);
}
//关闭输入输出流
zos.closeEntry();
bis.close();
} else { //如果是文件夹，则使用穷举的方法获取文件，写入zip
try {
File[] files = inputFile.listFiles();
List<String> filePathsTem = new ArrayList<String>();
for (File fileTem:files) {
filePathsTem.add(fileTem.toString());
}
return zipFile(zipBasePath, zipName, zipFilePath, filePathsTem,zos);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
return null;
}
//【最初版-下载】
@RequestMapping(value = "/download", method = RequestMethod.GET)
@ResponseBody
public void download(HttpServletRequest request, HttpServletResponse response, String filePath) throws UnsupportedEncodingException {
//String filePlace=bootdoConfig.getUploadPath()+filePath.replace("/files/","");
File file = new File(filePath);
String fileName = URLEncoder.encode(file.getName(),"utf-8");
try{
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition","attachment;filename="+fileName);
OutputStream outputStream = response.getOutputStream();
InputStream inputStream = new FileInputStream(file);
byte[] buffer = new byte[2048];
int i = -1;
while ((i = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, i);
}
outputStream.flush();
outputStream.close();
inputStream.close();
}catch (IOException ioe){
ioe.printStackTrace();
}
}
//【删除】
@RequestMapping(value = "/del", method = RequestMethod.POST)
public Map<String,String> del(HttpServletRequest request, HttpServletResponse response, String path){
System.out.println("删除-"+path);
Map<String,String> map=new HashMap<>();
File file = new File(path);
if (file.exists() && file.isFile()) {
if (file.delete()) {
map.put("code","0");
map.put("message","删除成功");
return map;
} else {
map.put("code","1");
map.put("message","删除失败");
return map;
}
} else {
map.put("code","1");
map.put("message","删除失败");
return map;
}
}
//【第一版批量下载】
@RequestMapping(value = "/downloadListTest", method = RequestMethod.GET)
@ResponseBody
public void downloadListTest(HttpServletRequest request, HttpServletResponse response, String createTime,String batchNo,String taskNo){
filelist=new ArrayList<>();;//全局变量置空
String path= UploadUtils.returnAbsPath(createTime,batchNo,taskNo);
String filePlace=bootdoConfig.getUploadPath()+"files/"+path.substring(0,path.lastIndexOf("/"));
System.out.println("place="+filePlace);
String zipName = "download.zip";
String zipFilePath = filePlace+zipName;
List<String> list=getFileList(filePlace);
byte[] buff=null;
try{
//压缩文件
File zip = new File(zipFilePath);
if (!zip.exists()){
zip.createNewFile();
}
//创建zip文件输出流
ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zip));
this.zipFile(filePlace,zipName, zipFilePath,list,zos);
zos.close();
response.setHeader("Content-disposition", "attachment;filename="+zipName);//设置下载的压缩文件名称
OutputStream out = response.getOutputStream();
//将打包后的文件写到客户端，输出的方法同上，使用缓冲流输出
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(zipFilePath));
int count = 0;
while (count == 0) {
count = bis.available();
}
buff = new byte[count];
bis.read(buff);
/* byte[] buff = new byte[bis.available()];
bis.read(buff);*/
bis.close();
out.write(buff);//输出数据文件
out.flush();//释放缓存
out.close();//关闭输出流
zip.delete();//删除下载zip
}catch (IOException ioe){
ioe.printStackTrace();
}
}
//【预览】
@RequestMapping(value = "/preview", method = RequestMethod.GET)
@ResponseBody
public void pdfStreamHandler(HttpServletRequest request, HttpServletResponse response,String fileName) {
if(fileName==null||"".equals(fileName)){
throw new ServiceErrorException("没有相关文件，请联系管理员查询");
}else{
// File file = new File("d:/var/test.pdf");
File file = new File(fileName);
if (file.exists()){
byte[] data = null;
try {
FileInputStream input = new FileInputStream(file);
int count = 0;
while (count == 0) {
count = input.available();
}
data = new byte[count];
input.read(data);
OutputStream out = response.getOutputStream();
out.write(data);
out.flush();//释放缓存
out.close();//关闭输出流
input.close();
} catch (Exception e) {
System.out.println("pdf文件处理异常：" + e);
}
}
}
}
//【头像】
@RequestMapping(value = "/photo", method = RequestMethod.GET)
@ResponseBody
public static String GetImageStr(String fileName) {
InputStream in = null;
byte[] data = null;
//读取图片字节数组
try{
fileName="d:/var/1.png";
in = new FileInputStream(fileName);
data = new byte[in.available()];
in.read(data);
in.close();
}
catch (IOException e)
{
e.printStackTrace();
}
//对字节数组Base64编码
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(data);
}
}
打包下载zip
转载上一篇：mapper 批量处理
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