SignupServletне может отображать изображение в веб-браузере
public class SignupServlet extends HttpServlet{
private static final long serialVersionUID = 1L;
private static final String DIR = "Nanyang Polytechnic/FYPJ Project2/FYPJ/WebContent/profile";
//private static final String SAVE_DIR="images";
// configuration to get Image file name
private String extractFileName(Part part){
String contentDisp = part.getHeader("content-disposition");
String[] items = contentDisp.split(";");
for (String s :items){
if(s.trim().startsWith("filename")){
return s.substring(s.indexOf("=")+2, s.length()-1);
}
}
return "";
}
/**
* @see HttpServlet#HttpServlet()
*/
public SignupServlet() {
super();
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
//configuration for declaring file saving path
//String relativeWebPath = "/profile";
//String savePath = getServletContext().getRealPath(relativeWebPath);
String savePath = "D:" + File.separator + DIR ;
File fileSaveDir=new File(savePath);
if(!fileSaveDir.exists()){
fileSaveDir.mkdir();
}
// Configuration to generate Random passsword
Random rand = new Random();
int num = rand.nextInt(900000) + 100000;
String Password = Integer.toString(num);
//End
String Name = request.getParameter("name");
String Email = request.getParameter("email");
String UserType = request.getParameter("usertype");
String strDOB = request.getParameter("dob");
String Gender = request.getParameter("gender");
String address = request.getParameter("address");
Part part = request.getPart("file");
String fileName = extractFileName(part);
String filePath = savePath + File.separator + fileName;
part.write(savePath + File.separator + fileName);
java.sql.Date d;
SimpleDateFormat sdf;
sdf = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date d2 = null;
try{
d2 = sdf.parse(strDOB);
} catch (ParseException e1) {
e1.printStackTrace();
}
d = new java.sql.Date(d2.getTime());
DBAO dbao = null;
Login login = null;
//configuration for url for image
/*FileInputStream fis = new FileInputStream(filePath);
BufferedInputStream bis = new BufferedInputStream(fis);
BufferedOutputStream output = new BufferedOutputStream(response.getOutputStream());
for (int data; (data = bis.read()) > -1;){
output.write(data);
}
*/
try {
// configuration for email
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
Properties props = System.getProperties();
String host = "smtp.gmail.com";
String port = "465";
String fromEmail = "[email protected]";
String username = "lookeverybodysg";
String password = "catdog1234";
props.put("mail.smtp.user", fromEmail);
props.put("mail.smtp.host", host);
props.put("mail.smtp.starttls.enable","true");
props.put("mail.smtp.debug", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", port);
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.socketFactory.port", port);
props.put("mail.smtp.socketFactory.fallback", "false");
Session mailSession = Session.getDefaultInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication("lookeverybodysg", "catdog1234"); // username and password
}
});
mailSession.setDebug(true);
Message mailMessage = new MimeMessage(mailSession);
dbao = new DBAO();
if (dbao.emailExists(Email)){
request.setAttribute("Name", Name);
request.setAttribute("Email", Email);
request.setAttribute("UserType", UserType);
request.setAttribute("strDOB", strDOB);
request.setAttribute("Gender", Gender);
request.setAttribute("Pic", filePath);
request.setAttribute("Address", address);
response.setContentType("text/html");
out.println("<script type=\"text/javascript\">");
out.println("alert('The email you have used has already been regietered.');");
out.println("location='Login.jsp#signup';");
out.println("</script>");
return;
}else{
login = new Login();
login.setName(Name);
login.setEmail(Email);
login.setPassword(Password);
login.setUserType(UserType);
login.setDOB(d);
login.setGender(Gender);
login.setPic(filePath);
login.setAddress(address);
boolean isUserSaved = dbao.saveNewUser(login);
if (isUserSaved){
mailMessage.setFrom(new InternetAddress("[email protected]"));
mailMessage.setRecipient(Message.RecipientType.TO, new InternetAddress(Email));
mailMessage.setSubject("Thank You for signing up to LookEveryBody!");
mailMessage.setContent("Email :" + Email + "<br> Password :" + Password, "text/html");
Transport transport = mailSession.getTransport("smtps");
transport.connect (host, 465, username, password);
transport.send(mailMessage);
response.setContentType("text/html");
out.println("<script type=\"text/javascript\">");
out.println("alert('Your accout has been successfully created, please go to your email to get your password.');");
out.println("location='Login.jsp';");
out.println("</script>");
return;
}
}
}catch(Exception e)
{
e.printStackTrace();
}
}
}
(код отображения страницы изображения) hairstylistprofile.jsp
<a class="image fit"><img src="<%=login.getPic() %>" alt="" /></a>
я не смог просмотреть мое изображение в любом веб-браузере (google chrome, etcc. Однако его можно просмотреть в браузере java, любая помощь будет отличной.
так как я могу создать действительный url в моем сервлете? Я понимаю, что браузер не может получить доступ к локальному диску для извлечения и отображения изображения в браузере. Однако как я должен изменить свой сервлет так, чтобы он отображался. –
Я обновил свой ответ выше. –
для тега
я просто положил src = "profile/tralala.jpg"? –