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1.?re: createNativeQuery原生－命名查詢[未登錄]
query.getResultList(）這個返回的值用什么實體類接受呢？
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文件上傳

?1

package ?com.stt.doss.common.util.upload;
?2

?3

import ?java.io.BufferedInputStream;
?4

import ?java.io.BufferedOutputStream;
?5

import ?java.io.File;
?6

import ?java.io.FileNotFoundException;
?7

import ?java.io.FileOutputStream;
?8

import ?java.io.IOException;
?9

import ?java.io.InputStream;
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import ?java.io.OutputStream;
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import ?org.apache.commons.logging.Log;
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import ?org.apache.commons.logging.LogFactory;
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import ?org.apache.struts.upload.FormFile;
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/**
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?*?
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?*?Title:
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?*?
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?*?
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?*?Description:
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?*?
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?*?
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?*?Copyright:?Copyright?(c)?2006
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?*?
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?*?
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?*?Company:?stt
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?*?
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?*
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?*? @author ?william
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?*? @version ?1.0
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? */
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public ? class ?UploadHelper? {
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???? private ? static ?Log?log? = ?LogFactory.getLog(UploadHelper. class );
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???? public ? static ? void ?uploadFileForm(FormFile?formFile,?String?folderPath,
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????????????String?fileName)? {
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????????log.info( " UploadHelper(

)?uploadFileForm?start. " );
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???????? // ?retrieve?the?file?data
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????????InputStream?inputStream? = ? null ;
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????????OutputStream?outputStream? = ? null ;
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???????? int ?bytesRead? = ? 0 ;
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???????? byte []?buffer? = ? new ? byte [ 8192 ];
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????????File?file? = ? new ?File(folderPath);
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???????? if ?( ! file.exists())? {
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???????????? boolean ?f? = ?file.mkdir();
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???????????? if ?( ! f)? {
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????????????????f? = ?file.mkdirs();
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???????????????? if ?( ! f)? {
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????????????????}
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????????????}
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????????}
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???????? try ? {
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????????????StringBuffer?filePath? = ? new ?StringBuffer();
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????????????filePath.append(folderPath);
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????????????filePath.append(File.separator);
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????????????filePath.append(fileName);
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????????????inputStream? = ? new ?BufferedInputStream(formFile.getInputStream(),
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???????????????????? 2048 );
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????????????outputStream? = ? new ?BufferedOutputStream( new ?FileOutputStream(
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????????????????????filePath.toString()),? 2048 );
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???????????? // ?read?and?write
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???????????? while ?((bytesRead? = ?inputStream.read(buffer,? 0 ,? 8192 ))? != ? - 1 )? {
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????????????????outputStream.write(buffer,? 0 ,?bytesRead);
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????????????}
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????????} ? catch ?(FileNotFoundException?fnfe)? {
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????????????fnfe.printStackTrace();
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????????} ? catch ?(IOException?ioe)? {
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????????????ioe.printStackTrace();
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????????} ? finally ? {
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???????????? try ? {
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???????????????? // ?close?the?stream
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????????????????outputStream.close();
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????????????????inputStream.close();
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????????????} ? catch ?(IOException?ioe)? {
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????????????????ioe.printStackTrace();
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????????????}
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???????????? // ?destroy?the?temporary?file
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????????????formFile.destroy();
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????????}
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????} ? // ?end?uploadFileForm
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???? public ? static ? void ?deleteFile(String?path)? {
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????????log.info( " UploadHelper(

)?deleteFile?start. " );
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????????File?file? = ? new ?File(path);
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????????file.delete();
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????}
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}
98

posted on 2007-03-16 15:27 張金鵬閱讀(229) 評論(0) 編輯收藏所屬分類: core java中的一些數據結構的處理

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