base64字符串转化成图片

package com.dhht.wechat.util;

import sun.misc.BASE64Decoder;import sun.misc.BASE64Encoder;

import java.io.*;

/** * @Author: sh * @Description: ImgUtil * @Date: 9:14 2019/7/1 */public class ImgUtil {

    /**     * 图片转化成base64字符串     *     * @param imgPath     * @return     */    public static String GetImageStr(String imgPath) {// 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 = imgPath;// 待处理的图片        InputStream in = null;        byte[] data = null;        String encode = null; // 返回Base64编码过的字节数组字符串        // 对字节数组Base64编码        BASE64Encoder encoder = new BASE64Encoder();        try {            // 读取图片字节数组            in = new FileInputStream(imgFile);            data = new byte[in.available()];            in.read(data);            encode = encoder.encode(data);        } catch (IOException e) {            e.printStackTrace();        } finally {            try {                in.close();            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        }        return encode;    }

    /**     * base64字符串转化成图片     *     * @param imgData     图片编码     * @param imgFilePath 存放到本地路径     * @return     * @throws IOException     */    @SuppressWarnings("finally")    public static boolean GenerateImage(String imgData, String imgFilePath) throws IOException { // 对字节数组字符串进行Base64解码并生成图片        if (imgData == null) // 图像数据为空            return false;        BASE64Decoder decoder = new BASE64Decoder();        OutputStream out = null;        try {            out = new FileOutputStream(imgFilePath);            // Base64解码            byte[] b = decoder.decodeBuffer(imgData);            for (int i = 0; i < b.length; ++i) {                if (b[i] < 0) {// 调整异常数据                    b[i] += 256;                }            }            out.write(b);        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } finally {            out.flush();            out.close();            return true;        }    }}

原文地址：https://www.cnblogs.com/sung1024/p/11391965.html