base64生成图片——图片转换变成base64

如题。

下面上货。

package com.xueyou.demo;import org.apache.commons.lang3.StringUtils;import sun.misc.BASE64Decoder;import sun.misc.BASE64Encoder;import java.io.*;import java.util.UUID;public class Base64Utils {    /**     * 根据base64编码生成图片，保存在Path中     *     * @param base64Code     * @param filePath     */    public static boolean base64ToPic(String base64Code, String filePath) {        if (base64Code == null) {            return false;        }        //文件不存在        File existsFilePath = new File(filePath);        if (!existsFilePath.exists()) {            existsFilePath.mkdir();        }        String handledBase64Code = "";        if (StringUtils.contains(base64Code, "base64,")) {            handledBase64Code = StringUtils.substringAfter(base64Code, "base64,");        }        BASE64Decoder decoder = new BASE64Decoder();        try {            //Base64解码            byte[] b = decoder.decodeBuffer(handledBase64Code);            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 path = filePath + "/" + UUID.randomUUID() + ".jpg";            OutputStream out = new FileOutputStream(path);            out.write(b);            out.flush();            out.close();            return true;        } catch (Exception e) {            return false;        }    }    /**     * 图片生成base64编码     * @param imgPath     * @return     */    public static String PicToBase64(String imgPath) {        String result = "";        File imgFile = new File(imgPath);        if(!imgFile.exists()){            System.out.println("非法路径");            return result;        }        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);            in.close();        }        catch (IOException e)        {            e.printStackTrace();        }        //对字节数组Base64编码        BASE64Encoder encoder = new BASE64Encoder();        return encoder.encode(data);//返回Base64编码过的字节数组字符串    }}

调用方式：

package com.xueyou.demo;/** * Hello world! */public class App {    public static void main(String[] args) {        System.out.println("Hello World!");        String base64Code = "data:image/jpeg;base64,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";        //调用        /*if(Base64Utils.base64ToPic(base64Code,"e:/333")){            System.out.println("ok");        }else{            System.out.println("error");        }*/        //调用        System.out.println(Base64Utils.PicToBase64("E:/702.jpg"));    }}