1.
把图片写入硬盘
// 获取线路code
code =
util.getCircuitryCode(orgCode, po.getStartplace(),po.getTargetplace(), String.valueOf(po.getTraveldays()));
//
工程类路径,用来获取保存头像的路径
String url = request.getSession().getServletContext()
.getRealPath(request.getRequestURI());
int a = url.lastIndexOf(File.separator);
url = url.substring(0, a);
StringBuffer dirPath =
new StringBuffer(url).append(
File.separator).append("picture");
filePath = fileItem.getName();
if (filePath !=
null && !"".equalsIgnoreCase(filePath)) {
//
创建文件夹
createdir[微软用户1] (code,
dirPath);
TAttachment ta =
new TAttachment();
//
获取图片或文件的名字
fileName = filePath.substring(filePath.lastIndexOf("\\") + 1);
//
循环图片名字判断是否有重复的
for (int i = 0; i < pathnameList.size();
i++) {
String beforFileName = (String) pathnameList.get(i);
if (beforFileName.equals(fileName)) {
fileName =
"little"+ i+ filePath.substring(filePath.lastIndexOf("\\") + 1);
}
}
dirPath.append("/");
outPath = dirPath.toString() + fileName;
//
写入文件
if (!"".equals(filePath)) {
ins = fileItem.getInputStream();
os =
new FileOutputStream(outPath);
bytesRead = 0;
buffer =
newbyte[4096];
while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {
os.write(buffer, 0, bytesRead);
}
buffer =
null;
os.close();
ins.close();
}
fileSize = fileItem.getSize();
//
把图片名字添加到list中，以便判断是否有相同的图片名字
pathnameList.add(fileName);
extend1 = fileName.substring(fileName.lastIndexOf(".") + 1);
byte[] bytes =
newbyte[12];
ta.setName(fileName);
ta.setContexts(bytes);
ta.setCreatetime(new Date());
ta.setCreatorid(creatorid);
ta.setCreatororgid(creatororgid);
ta.setCreatorip(ip);
ta.setExtend(extend1);
ta.setFilepath("/picture/circuitryPictrue/" + code
+
"/" + fileName);
2. 复制
code = util.getCircuitryCode(orgCode, po.getStartplace(),po.getTargetplace(), String.valueOf(po.getTraveldays()));
//
工程类路径,用来获取保存头像的路径
String url = request.getSession().getServletContext().getRealPath(request.getRequestURI());
int a = url.lastIndexOf(File.separator);
url = url.substring(0, a);
StringBuffer dirPaths =
new StringBuffer(url);//
用来删除文件用的
StringBuffer dirPath =
new StringBuffer(url).append(File.separator).append("picture");
String fileid = fileItem.getFieldName();
// 用来获取浏览文本框的ID
filePath = fileItem.getName();
//
获取图片或文件的名字
fileName = filePath.substring(filePath.lastIndexOf("\\") + 1);
if (fileid.equals("haveBigPic")) {
if (filePath ==
null || filePath.equals("")) {
type =
"BIGPIC";
attachement =
logic.getAttachment(relationId, type);
//
调用复制的方法
filePath =
copyPicture[微软用户2] (code,
ip, filePath,creatororgid, creatorid, set_ta, tattBig,attachement, dirPaths, dirPath);
3. 修改TAttachment ta =
null;
//
工程类路径,用来获取保存头像的路径
String url = request.getSession().getServletContext()
.getRealPath(request.getRequestURI());
int a = url.lastIndexOf(File.separator);
url = url.substring(0, a);
StringBuffer dirPath =
new StringBuffer(url).append(
File.separator).append("picture");
StringBuffer dirPaths =
new StringBuffer(url);//
此字符串用来删除文件夹的
String fileid = fileItem.getFieldName();
// 用来获取浏览文本框的ID
filePath = fileItem.getName();
if (filePath !=
null && !"".equalsIgnoreCase(filePath)) {
//
创建文件夹
createdir(code, dirPath);
fileName = filePath.substring(filePath
.lastIndexOf("\\") + 1);
//
调用处理图片同名的方法
fileName =
picrename[微软用户3] (code,
filePath, fileName, po,
pathnameList, dirPaths, fileid);
dirPath.append("/");
outPath = dirPath.toString() + fileName;
//
写入文件说
if (!"".equals(filePath)) {
ins = fileItem.getInputStream();
os =
new FileOutputStream(outPath);
bytesRead = 0;
buffer =
newbyte[4096];
while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {
os.write(buffer, 0, bytesRead);
}
buffer =
null;
os.close();
ins.close();
}
fileSize = fileItem.getSize();
pathnameList.add(fileName);//
把filename存入list，用来判断图片重名
extend1 = fileName
.substring(fileName.lastIndexOf(".") + 1);
byte[] bytes =
newbyte[12];
Set ts = po.getTAttachments();
Iterator it = ts.iterator();
boolean flag =
false;
if ("haveBigPic".equalsIgnoreCase(fileItem
.getFieldName())) {
while (it.hasNext()) {
ta = (TAttachment) it.next();
if (Constants.C_ATTACHMENT_TYPE_BIG
.equalsIgnoreCase(ta.getType())) {
flag = true;
break;
}
}
} elseif ("haveLittlePic".equalsIgnoreCase(fileItem
.getFieldName())) {
while (it.hasNext()) {
ta = (TAttachment) it.next();
if (Constants.C_ATTACHMENT_TYPE_SMALL.equalsIgnoreCase(ta.getType()))
{
flag =
true;
break;
}
}
} elseif ("haveWordFile".equalsIgnoreCase(fileItem
.getFieldName())) {
while (it.hasNext()) {
ta = (TAttachment) it.next();
if (Constants.C_ATTACHMENT_TYPE_DOC
.equalsIgnoreCase(ta.getType())) {
flag = true;
break;
}
}
}
if (flag) {
if (Constants.C_ATTACHMENT_TYPE_BIG
.equalsIgnoreCase(ta.getType())) {
if ("bmp".equalsIgnoreCase(extend1)
||
"gif".equalsIgnoreCase(extend1)
|| "jpg".equalsIgnoreCase(extend1)
|| "jpeg".equalsIgnoreCase(extend1)
|| "tiff".equalsIgnoreCase(extend1)
|| "psd".equalsIgnoreCase(extend1)
|| "png".equalsIgnoreCase(extend1)
|| "swf".equalsIgnoreCase(extend1)) {
ta.setKind(Constants.C_ATTACHMENT_KIND_PHO);
ta.setType(Constants.C_ATTACHMENT_TYPE_BIG);
}
else {
thrownew BusinessException("请上传正确的格式图片");
}
}
elseif (Constants.C_ATTACHMENT_TYPE_SMALL
.equalsIgnoreCase(ta.getType())) {
if ("jpg".equalsIgnoreCase(extend1))
{
ta.setKind(Constants.C_ATTACHMENT_KIND_PHO);
ta
.setType(Constants.C_ATTACHMENT_TYPE_SMALL);
}
else {
thrownew BusinessException("请上传JPG格式图片");
}
}
elseif (Constants.C_ATTACHMENT_TYPE_DOC
.equalsIgnoreCase(ta.getType())) {
if ("doc".equalsIgnoreCase(extend1)
||
"pdf".equalsIgnoreCase(extend1)
|| "xls".equalsIgnoreCase(extend1)) {
ta.setKind(Constants.C_ATTACHMENT_KIND_DOC);
ta.setType(Constants.C_ATTACHMENT_TYPE_DOC);
}
else {
thrownew BusinessException(
"请上传WORD文档或PDF文件");
}
}
ta.setContexts(bytes);
ta.setName(fileName);
ta.setContexts(bytes);
ta.setCreatetime(new Date());
ta.setCreatorid(changerid);
ta.setCreatororgid(changerorgid);
ta.setCreatorip(ip);
ta.setExtend(extend1);
ta.setFilepath("/picture/circuitryPictrue/" + code
+ "/" + fileName);
ta.setFilesize(String.valueOf(fileSize));
set.add(ta);
3. 读取到界面
//
把图片读入页面
public ActionForward readpic(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
File uploadFile =
null;
try {
String id = request.getParameter("id");
TAttachment t = (TAttachment)
logic.getDao().getHibernateTemplate()
.get(TAttachment.class, id);
//
获取取数据库中的filepath路径
String bytes = t.getFilepath();
//
工程类路径,用来获取保存头像的路径
String url = request.getSession().getServletContext().getRealPath(
request.getRequestURI());
int a = url.lastIndexOf(File.separator);
url = url.substring(0, a);
BufferedInputStream bis =
null;
BufferedOutputStream bos =
null;
OutputStream fos =
null;
InputStream fis =
null;
String filepath = bytes;
uploadFile =
new File(url + filepath);
fis = new FileInputStream(uploadFile);
bis = new BufferedInputStream(fis);
fos = response.getOutputStream();
bos = new BufferedOutputStream(fos);
//
这个就就是弹出下载对话框的关键代码
// response.setHeader("Content-disposition", "attachment;filename="
// + URLEncoder.encode(bytes, "utf-8"));
int bytesRead = 0;
//
用输入流进行先读，然后用输出流去写
byte[] buffer =
newbyte[8192];
while ((bytesRead = bis.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);
}
bos.flush();
fis.close();
bis.close();
fos.close();
bos.close();
} catch (Exception ex) {
return mapping.findForward("error");
}
returnnull;
4. }
5下载附件，如word，pdf等等
public ActionForward download(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {
byte[] buffer;
InputStream ins;
String id =
"", dirPaths, filepath;
try {
//
工程类路径,用来获取保存头像的路径
String url = request.getSession().getServletContext().getRealPath(
request.getRequestURI());
int a = url.lastIndexOf(File.separator);
url = url.substring(0, a);
id = request.getParameter("id");
TAttachment ta = (TAttachment)
logic.load(TAttachment.class, id);
filepath = ta.getFilepath();
dirPaths = url + filepath;
//
读取文件
if (!"".equals(dirPaths)) {
ins = new FileInputStream(dirPaths);
int bytesRead = 0;
buffer = newbyte[4096];
response.setContentType("application/x-msdownload");
response.setHeader("Content-Disposition",
"attachment;"
+
" filename="
+ new String(ta.getName().getBytes(),
"ISO-8859-1"));
while ((bytesRead = ins.read(buffer, 0, 4096)) != -1) {
logic.write(response.getOutputStream(), buffer);
}
buffer = null;
ins.close();
}
} catch (Exception ex) {
request.setAttribute(Constants.C_ERROR_MSG,
"文件下载出现错误");
return mapping.findForward("error");
}
returnnull;
}
6．Byte转换为输入流
// 获取没有存入到硬盘的图片，然后把图片添加到硬盘
public ActionForward movePitureToDir(ActionMapping mapping,
ActionForm form, HttpServletRequest request,
HttpServletResponse response)
throws Exception {
String outPath =
"", fileName;
byte[] buffer =
null;
OutputStream os =
null;
byte[] bytes =
newbyte[12];
byte[] bytes1;
Map map = new HashMap();
//
工程类路径,用来获取保存图片的路径
String url = request.getSession().getServletContext().getRealPath(request.getRequestURI());
int a = url.lastIndexOf(File.separator);
url = url.substring(0, a);
StringBuffer dirPath =
new StringBuffer(url).append(File.separator).append("picture");
//
查找附件信息
List list =
logic.getAttamentsByfilePath("/picture/circuitryPictrue");
if (list !=
null) {
//
创建文件夹picture
File fpath =
new File(dirPath.toString());
if (!fpath.exists()) {
fpath.mkdir();
}
//
创建用户照片文件夹
dirPath.append("/").append("circuitryPictrue");
fpath = new File(dirPath.toString());
if (!fpath.exists()) {
fpath.mkdir();
}
dirPath.append("/");
for (int i = 0; i < list.size(); i++)
{
map = (Map) list.get(i);
String id = map.get("id").toString();
TAttachment attaches =
logic.getAttachment(id);
TCircuitry tc = (TCircuitry)
logic.getDao().getHibernateTemplate().get(TCircuitry.class,attaches.getRelationid());
if (tc !=
null) {
StringBuffer strbf =
new StringBuffer(dirPath);
//
创建某条线路的图片文件夹
strbf.append(tc.getCode());
fpath =
new File(strbf.toString());
//
如果用户文件夹不存在，则创建用户文件夹