java实现图片与base64字符串之间的转换

    import java.io.FileInputStream;  
    import java.io.FileOutputStream;  
    import java.io.IOException;  
    import java.io.InputStream;  
    import java.io.OutputStream;  
      
    import sun.misc.BASE64Decoder;  
    import sun.misc.BASE64Encoder;  
      
    public class Base64Test   
    {  
        public static void main(String[] args)  
        {  
            String strImg = GetImageStr();  
            System.out.println(strImg);  
            GenerateImage(strImg);  
        }  
        //图片转化成base64字符串  
        public static String GetImageStr()  
        {//将图片文件转化为字节数组字符串，并对其进行Base64编码处理  
            String imgFile = "d://test.jpg";//待处理的图片  
            InputStream in = null;  
            byte[] data = null;  
            //读取图片字节数组  
            try   
            {  
                in = new FileInputStream(imgFile);          
                data = new byte[in.available()];  
                in.read(data);