从java2s.com: Insert picture to MySQL开始：

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.sqlException;

public class InsertPictureToMysqL {
  public static void main(String[] args) throws Exception,IOException,sqlException {
    Class.forName("org.gjt.mm.MysqL.Driver");
    Connection conn = DriverManager.getConnection("jdbc:MysqL://localhost/databaseName","root","root");
    String INSERT_PICTURE = "INSERT INTO MyPictures (photo) VALUES (?)";

    FileInputStream fis = null;
    PreparedStatement ps = null;
    try {
      conn.setAutoCommit(false);
      File file = new File("/tmp/photo.png");
      fis = new FileInputStream(file);
      ps = conn.prepareStatement(INSERT_PICTURE);
      ps.setBinaryStream(1,fis,(int) file.length());
      ps.executeUpdate();
      conn.commit();
    } finally {
      ps.close();
      fis.close();
    }
  }
}

MysqL表：

CREATE TABLE MyPictures (
   photo  BLOB
);

如果映像位于MysqL服务器主机上,则可以使用MysqL客户端的LOAD_FILE()命令：

INSERT INTO MyPictures (photo) VALUES(LOAD_FILE('/tmp/photo.png'));