如何将字节数组转换为 blob [英] How to convert byte array to blob

问题描述

我想从数据库中获取图像.为此，我为图像创建了一个字节数组，该数组通过字符串传递，现在我想将该字符串转换为图像格式.我正在将该图像分配给 Jlabel 字段.代码如下:

I want to fetch an image from database. For that I have created a byte array for an image, which is passed by a string, and now I want to convert that string into image format. I am assigning that image to a Jlabel field. The code is as follows:

try {
    Blob image_vis = rs1.getBlob(10);
    InputStream x=image_vis.getBinaryStream();
    OutputStream out=new FileOutputStream(string_op);
    byte[] bytes = string_op.getBytes();
    String s=new String(bytes);
    System.out.println(+s);  //prints bytes for the string
    ImageIcon icon_cap = new ImageIcon(string_op);
    image_cap.setIcon(icon_cap);   //prints nothing to Jlabel
    //image_cap.setText(s);     //prints a path of a image
}

推荐答案

Blob blob = new javax.sql.rowset.serial.SerialBlob(bytes);

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