Java 如何使用blob objcet将servlet文件上传到数据库中

我想上传一些文件，把我的网站扔进数据库。在上传页面中，我使用了如下字段：

<form method = "post" action="addResumeSvl">
   <input type = "file" name="file1">
   <input type = "file" name="file2">
</form>

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但是在addResumeSvl中，我如何区分file1和file2，比如

request.getParameter（）

方法，然后将它们放入带有blob对象的数据库中，它们必须是

multipart

<form action="addResumeSvl" method="post" enctype="multipart/form-data">

现在要存储在DB中，请使用下面的代码段

InputStream inputStream = null; // input stream of the upload file

    // obtains the upload file part in this multipart request
    Part filePart = request.getPart("file1");
    if (filePart != null) {
        // prints out some information for debugging
        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();
    }

DriverManager.registerDriver(new com.mysql.jdbc.Driver());
        conn = DriverManager.getConnection(dbURL, dbUser, dbPass);

        // constructs SQL statement
        String sql = "INSERT INTO tablename(columnname) values (?)";
        PreparedStatement statement = conn.prepareStatement(sql);             
        if (inputStream != null) {
            // fetches input stream of the upload file for the blob column
            statement.setBlob(1, inputStream);
        }

        // sends the statement to the database server
        int row = statement.executeUpdate();
        if (row > 0) {
            message = "File uploaded and saved into database";
        }

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提交请求之前，请确保将

enctype=“multipart/form data

作为属性添加到

标记中