java實現圖片與base64字串之間的轉換(不適用SUN公司的sun.misc.BASE64Encoder)
阿新 • • 發佈:2019-02-11
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字串轉化成圖片 public static boolean GenerateImage(String imgStr) { //對位元組陣列字串進行Base64解碼並生成圖片 if (imgStr == null) //影象資料為空 return false; Base64 base64 = new Base64(); try { //Base64解碼 byte[] b = base64.decode(imgStr.getBytes()); for(int i=0;i<b.length;++i) { if(b[i]<0) {//調整異常資料 b[i]+=256; } } //生成jpeg圖片 String imgFilePath = "d://222.jpg";//新生成的圖片 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("------------"); } }