/**
* 导出文件
*
* @param response
* @throws Exception
*/
public void exportQytzpz(HttpServletRequest request, UserData userData, HttpServletResponse response, String year, String month) throws Exception {
month = month.startsWith("0") ? month.replace("0", "") : month;
SqlParamDTO sqlParamDTO = qytzshDAO.makeQytzpzParamDTO(userData, year, month);
String fileName = "历史台账信息";
Connection conn = null;
PreparedStatement pstm = null;
ResultSet rs = null;
try {
//查台账
conn = CommonDAO.getConnection();
pstm = conn.prepareStatement(sqlParamDTO.getSql());
sqlParamDTO.setParameterValues(pstm);
rs = pstm.executeQuery();
String title = year + "年" + month + "月工价台账凭证";
String rootPath = "";
if (StringUtils.isNotEmpty(SystemParameter.OUTER_SHAREFILE_PATH)) {
rootPath = SystemParameter.OUTER_SHAREFILE_PATH;
} else {
rootPath = request.getRealPath(CommonConstant.EXPORT_DATA_FILE_PATH);
}
rootPath = rootPath + File.separator + "ScTzUploadPics" + File.separator;
String source = rootPath + File.separator + title;
//创建图片文件目录
createpicDir(rootPath, rs, title);
//打包zip,导出
ServletOutputStream out = response.getOutputStream();
//将zip以流的形式输出到前台
response.setHeader("content-type", "application/octet-stream");
response.setCharacterEncoding("utf-8");
// 设置浏览器响应头对应的Content-disposition
//参数中 testZip 为压缩包文件名，尾部的.zip 为文件后缀
response.setHeader("Content-disposition",
"attachment;filename=" + new String(title.getBytes("gbk"), "iso8859-1") + ".zip");
toZip(source, out, true);
//删除过度文件
deleteDir(source);
} catch (ThtfException e) {
e.printStackTrace();
} finally {
if (rs != null) {
rs.close();
}
}
}
/**
* 删除过度文件夹
*
* @param path
* @return
*/
private boolean deleteDir(String path) {
File file = new File(path);
if (!file.exists()) {
return false;
}
if (file.isFile()) {
return file.delete();
}
File[] files = file.listFiles();
for (File f : files) {
if (f.isFile()) {
if (!f.delete()) {
return false;
}
} else {
if (!this.deleteDir(f.getAbsolutePath())) {
return false;
}
}
}
return file.delete();
}
/**
* 压缩成ZIP 方法
*
* @param srcDir 压缩文件夹路径
* @param out 输出流
* @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
* false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
* @throws RuntimeException 压缩失败会抛出运行时异常
*/
private void toZip(String srcDir, OutputStream out, boolean KeepDirStructure)
throws RuntimeException {
long start = System.currentTimeMillis();
ZipOutputStream zos = null;
try {
zos = new ZipOutputStream(out);
File sourceFile = new File(srcDir);
compress(sourceFile, zos, sourceFile.getName(), KeepDirStructure);
long end = System.currentTimeMillis();
} catch (Exception e) {
throw new RuntimeException("zip error from ZipUtils", e);
} finally {
if (zos != null) {
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 递归压缩方法
*
* @param sourceFile 源文件
* @param zos zip输出流
* @param name 压缩后的名称
* @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
* false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
* @throws Exception
*/
private void compress(File sourceFile, ZipOutputStream zos, String name,
boolean KeepDirStructure) throws Exception {
byte[] buf = new byte[1024];
if (sourceFile.isFile()) {
// 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
zos.putNextEntry(new ZipEntry(name));
// copy文件到zip输出流中
int len;
FileInputStream in = new FileInputStream(sourceFile);
while ((len = in.read(buf)) != -1) {
zos.write(buf, 0, len);
}
// Complete the entry
zos.closeEntry();
in.close();
} else {
File[] listFiles = sourceFile.listFiles();
if (listFiles == null || listFiles.length == 0) {
// 需要保留原来的文件结构时,需要对空文件夹进行处理
if (KeepDirStructure) {
// 空文件夹的处理
zos.putNextEntry(new ZipEntry(name + "/"));
// 没有文件，不需要文件的copy
zos.closeEntry();
}
} else {
for (File file : listFiles) {
// 判断是否需要保留原来的文件结构
if (KeepDirStructure) {
// 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
// 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
compress(file, zos, name + "/" + file.getName(), KeepDirStructure);
} else {
compress(file, zos, file.getName(), KeepDirStructure);
}
}
}
}
}
private void createpicDir(String rootPath, ResultSet rs, String title) throws SQLException, IOException {
FileInputStream fis = null;
FileOutputStream fos = null;
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
while (rs.next()) {
QytzDTO qytzDTO = getQytzDTO(rs);
String price5pic = qytzDTO.getPrice5pic();
String price20pic = qytzDTO.getPrice20pic();
String qymc = qytzDTO.getQymc();
String ggpmc = qytzDTO.getGgpmc();
String ggplx = qytzDTO.getGgplx();
ggplx = ggplx == "1" ? "购进" : "出厂";
//5日
if (StringUtils.isNotEmpty(price5pic)) {
String[] pics = price5pic.split(",");
for (int i = 0; i < pics.length; i++) {
String[] suffixs = pics[i].split("\\.");
String inPath = rootPath + File.separator + pics[i];
String outPath = rootPath + File.separator + title + File.separator + qymc + File.separator + ggplx + "-" + ggpmc + "-5日" + "(" + (i + 1) + ")." + suffixs[1];
File inFile = new File(inPath);
File outFile = new File(outPath);
if (!inFile.exists()) {
continue;
}
fis = new FileInputStream(inFile);
bis = new BufferedInputStream(fis);
//检查父目录
if (!outFile.exists()) {
outFile.mkdirs();
outFile.delete();
}
fos = new FileOutputStream(outFile);
bos = new BufferedOutputStream(fos);
int len;
byte[] buffer = new byte[2048];
while ((len = bis.read(buffer)) != -1) {
bos.write(buffer, 0, len);
}
fos.flush();
bos.flush();
}
}
//20日
if (StringUtils.isNotEmpty(price20pic)) {
String[] pics = price20pic.split(",");
for (int i = 0; i < pics.length; i++) {
String[] suffixs = pics[i].split("\\.");
String inPath = rootPath + File.separator + pics[i];
String outPath = rootPath + File.separator + title + File.separator + qymc + File.separator + ggplx + "-" + ggpmc + "-20日" + "(" + (i + 1) + ")." + suffixs[1];
File inFile = new File(inPath);
File outFile = new File(outPath);
if (!inFile.exists()) {
continue;
}
fis = new FileInputStream(inFile);
bis = new BufferedInputStream(fis);
//检查父目录
if (!outFile.exists()) {
outFile.mkdirs();
outFile.delete();
}
fos = new FileOutputStream(outFile);
bos = new BufferedOutputStream(fos);
int len;
byte[] buffer = new byte[2048];
while ((len = bis.read(buffer)) != -1) {
bos.write(buffer, 0, len);
}
bos.flush();
}
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (bis != null) {
bis.close();
}
if (bos != null) {
bos.close();
}
if (fis != null) {
fis.close();
}
if (fos != null) {
fos.close();
}
System.gc();
}
}
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