// post方式发送email
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
File file = doAttachment(request);
EmailAttachment attachment = new EmailAttachment();
attachment.setPath(file.getPath());
attachment.setDisposition(EmailAttachment.ATTACHMENT);
attachment.setName(file.getName());
MultiPartEmail email = new MultiPartEmail();
email.setCharset("UTF-8");
email.setHostName("smtp.sina.com");
email.setAuthentication("T-GWAP", "dangdang");
try {
email.addTo(parameters.get("to"));
email.setFrom(parameters.get("from"));
email.setSubject(parameters.get("subject"));
email.setMsg(parameters.get("body"));
email.attach(attachment);
email.send();
request.setAttribute("sendmail.message", "邮件发送成功！");
} catch (EmailException e) {
Logger logger = Logger.getLogger(SendAttachmentMailServlet.class);
logger.error("邮件发送不成功", e);
request.setAttribute("sendmail.message", "邮件发送不成功！");
}
request.getRequestDispatcher("/sendResult.jsp").forward(request,
response);
}
/**
* Write a file to the response stream. Handles Range requests.
*
* @param servlet called from here
* @param req the request
* @param res the response
* @param file to serve
* @param contentType content type, if null, will try to guess
* @throws IOException on write error
*/
public static void returnFile(
HttpServlet servlet,
HttpServletRequest req,
HttpServletResponse res,
File file,
String contentType)
throws IOException {
// No file, nothing to view
if (file == null) {
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0));
res.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// check that it exists
if (!file.exists()) {
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0));
res.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// not a directory
if (!file.isFile()) {
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_BAD_REQUEST, 0));
res.sendError(HttpServletResponse.SC_BAD_REQUEST);
return;
}
// Set the type of the file
String filename = file.getPath();
if (null == contentType) {
if (filename.endsWith(".html")) contentType = "text/html; charset=iso-8859-1";
else if (filename.endsWith(".xml")) contentType = "text/xml; charset=iso-8859-1";
else if (filename.endsWith(".txt") || (filename.endsWith(".log"))) contentType = CONTENT_TEXT;
else if (filename.indexOf(".log.") > 0) contentType = CONTENT_TEXT;
else if (filename.endsWith(".nc")) contentType = "application/x-netcdf";
else contentType = servlet.getServletContext().getMimeType(filename);
if (contentType == null) contentType = "application/octet-stream";
}
returnFile(req, res, file, contentType);
}
// fix for 4720897
// if the jar file resides in a war file, download it to a temp dir
// so it can be used to generate jardiff
private String getRealPath(String path) throws IOException {
URL fileURL = _servletContext.getResource(path);
File tempDir = (File) _servletContext.getAttribute("javax.servlet.context.tempdir");
// download file into temp dir
if (fileURL != null) {
File newFile = File.createTempFile("temp", ".jar", tempDir);
if (download(fileURL, newFile)) {
String filePath = newFile.getPath();
return filePath;
}
}
return null;
}
/**
* Write a file to the response stream. Handles Range requests.
*
* @param req request
* @param res response
* @param file must exists and not be a directory
* @param contentType must not be null
* @throws IOException or error
*/
public static void returnFile(
HttpServletRequest req, HttpServletResponse res, File file, String contentType)
throws IOException {
res.setContentType(contentType);
// see if its a Range Request
boolean isRangeRequest = false;
long startPos = 0, endPos = Long.MAX_VALUE;
String rangeRequest = req.getHeader("Range");
if (rangeRequest != null) { // bytes=12-34 or bytes=12-
int pos = rangeRequest.indexOf("=");
if (pos > 0) {
int pos2 = rangeRequest.indexOf("-");
if (pos2 > 0) {
String startString = rangeRequest.substring(pos + 1, pos2);
String endString = rangeRequest.substring(pos2 + 1);
startPos = Long.parseLong(startString);
if (endString.length() > 0) endPos = Long.parseLong(endString) + 1;
isRangeRequest = true;
}
}
}
// set content length
long fileSize = file.length();
long contentLength = fileSize;
if (isRangeRequest) {
endPos = Math.min(endPos, fileSize);
contentLength = endPos - startPos;
}
if (contentLength > Integer.MAX_VALUE)
res.addHeader(
"Content-Length", Long.toString(contentLength)); // allow content length > MAX_INT
else res.setContentLength((int) contentLength); // note HEAD only allows this
String filename = file.getPath();
boolean debugRequest = Debug.isSet("returnFile");
if (debugRequest)
log.debug(
"returnFile(): filename = "
+ filename
+ " contentType = "
+ contentType
+ " contentLength = "
+ contentLength);
// indicate we allow Range Requests
res.addHeader("Accept-Ranges", "bytes");
if (req.getMethod().equals("HEAD")) {
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_OK, 0));
return;
}
try {
if (isRangeRequest) {
// set before content is sent
res.addHeader("Content-Range", "bytes " + startPos + "-" + (endPos - 1) + "/" + fileSize);
res.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
FileCacheRaf.Raf craf = null;
try {
craf = fileCacheRaf.acquire(filename);
IO.copyRafB(
craf.getRaf(), startPos, contentLength, res.getOutputStream(), new byte[60000]);
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(
HttpServletResponse.SC_PARTIAL_CONTENT, contentLength));
return;
} finally {
if (craf != null) fileCacheRaf.release(craf);
}
}
// Return the file
ServletOutputStream out = res.getOutputStream();
IO.copyFileB(file, out, 60000);
res.flushBuffer();
out.close();
if (debugRequest) log.debug("returnFile(): returnFile ok = " + filename);
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_OK, contentLength));
}
// @todo Split up this exception handling: those from file access vs those from dealing with
// response
// File access: catch and res.sendError()
// response: don't catch (let bubble up out of doGet() etc)
catch (FileNotFoundException e) {
log.error("returnFile(): FileNotFoundException= " + filename);
log.info(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0));
if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_NOT_FOUND);
} catch (java.net.SocketException e) {
log.info("returnFile(): SocketException sending file: " + filename + " " + e.getMessage());
log.info("returnFile(): " + UsageLog.closingMessageForRequestContext(STATUS_CLIENT_ABORT, 0));
} catch (IOException e) {
String eName =
e.getClass().getName(); // dont want compile time dependency on ClientAbortException
if (eName.equals("org.apache.catalina.connector.ClientAbortException")) {
log.info(
"returnFile(): ClientAbortException while sending file: "
+ filename
+ " "
+ e.getMessage());
log.info(
"returnFile(): " + UsageLog.closingMessageForRequestContext(STATUS_CLIENT_ABORT, 0));
return;
}
log.error("returnFile(): IOException (" + e.getClass().getName() + ") sending file ", e);
log.error(
"returnFile(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0));
if (!res.isCommitted())
res.sendError(HttpServletResponse.SC_NOT_FOUND, "Problem sending file: " + e.getMessage());
}
}
