다음 코드를 확인하십시오.
이미지를 데이터베이스에 업로드합니다.
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
String path=request.getParameter("h2");
out.println(path);
Connection connection=null;
ResultSet rs = null;
PreparedStatement psmnt = null;
FileInputStream fis;
Class.forName("com.mysql.jdbc.Driver");
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/image", "root", "kshitij");
File image = new File(path);
psmnt = connection.prepareStatement("insert into new1(id,imagepath)"+"values(?,?)");
String s1=request.getParameter("h1");
psmnt.setString(1,s1);
fis = new FileInputStream(image);
psmnt.setBinaryStream(2, (InputStream)fis, (int)(image.length()));
int s = psmnt.executeUpdate();
if(s>0) {
out.println("Uploaded successfully !");
}
else {
out.println("unsucessfull to upload image.");
}
}
catch (Exception ex) {
System.out.println("Found some error : "+ex);
}
및 이미지 다운로드 용.
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
Connection connection = null;
ResultSet rs = null;
PreparedStatement psmnt = null;
InputStream sImage;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/image", "root", "kshitij");
psmnt = connection.prepareStatement("SELECT imagepath FROM new1 WHERE id = ?");
psmnt.setString(1, "23");
rs = psmnt.executeQuery();
if(rs.next()) {
byte[] bytearray = new byte[1048576];
int size=0;
sImage = rs.getBinaryStream(1);
//response.reset();
response.setContentType("image/jpeg");
while((size=sImage.read(bytearray))!= -1){
response.getOutputStream().write(bytearray,0,size);
}
}
}
catch(Exception ex){
// out.println("error :"+ex);
}
}
'file.exist()'가 발생합니까? –
file.exist()는 false.ok를 반환하지만 URL을 파일 유형으로 어떻게 바꿀 수 있습니까? – arjun3037
andrew 당신은 내가 올바른 방법으로해야 할 일을 제안 할 수 있습니다 .. 나는 그 이미지를 클릭하여 다운로드하고 싶습니다 ... – arjun3037