java实现图片与base64字符串之间的转换（不适用SUN公司的sun.misc.BASE64Encoder）

package com.liu.ming.test;
import java.io.FileOutputStream;
import java.io.OutputStream;
import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Base64;

public class Base64Encoder {

//base64字符串转化成图片    
    public static boolean GenerateImage(String imgStr)    
    {   //对字节数组字符串进行Base64解码并生成图片    
        if (imgStr == null) //图像数据为空    
            return false;    
Base64 base64 = new Base64();
        try     
        {    
            //Base64解码    
        byte[] b = base64.decode(imgStr.getBytes());
            for(int i=0;i<b.length;++i)    
            {    
                if(b[i]<0)    
                {//调整异常数据    
                    b[i]+=256;    
                }    
            }    
            //生成jpeg图片    
            String imgFilePath = "d://222.jpg";//新生成的图片    
            OutputStream out = new FileOutputStream(imgFilePath);        
            out.write(b);    
            out.flush();    
            out.close();    
            return true;    
        }     
        catch (Exception e)     
        {    
            return false;    
        }    
    }   

public static void main(String[] args) throws DecoderException {
String sql = "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";
GenerateImage(sql);
System.out.println("------------");



}

}