0
你好，我是在JSP編程新手。我試圖在PostgreSQL數據庫中插入一個圖像與字節字段。這是我的代碼到目前爲止。的setBinaryStream（INT，爲InputStream）尚未實現
JSP代碼
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Test image</h1>
<form action="Upload" method="post" enctype="multipart/form-data">
<input type="text" name="description" />
<input type="file" name="file" />
<input type="submit" />
</form>
</body>
</html>
servlet代碼
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
InputStream inputStream = null;
// obtains the upload file part in this multipart request
Part filePart = request.getPart("file");
if (filePart != null) {
// debug messages
System.out.println(filePart.getName());
System.out.println(filePart.getSize());
System.out.println(filePart.getContentType());
// obtains input stream of the upload file
inputStream = filePart.getInputStream();
}
try {
Class.forName("org.postgresql.Driver");
Connection con = DriverManager.getConnection("jdbc:postgresql://localhost:8084/hgcirequestproject", "appdev2", "[email protected]");
PreparedStatement ps = con.prepareStatement("insert into tbl_testimage (test) values (?)");
ps.setBinaryStream(1, inputStream);
ps.executeQuery();
out.println("success");
con.close();
ps.close();
} catch (Exception e) {
System.out.println(e.toString());
}
}
}
我得到了錯誤.setBinaryStream（INT，爲InputStream）尚未實現。 任何幫助將不勝感激。感謝