个回答

• 慕粉9579534

  2020-11-10 16:25:09

  csdn链接：https://blog.csdn.net/Cha0DD/article/details/87794268?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-1.channel_param

  原方法

  BASE64Encoder encoder = new BASE64Encoder();

  String imagestr =  encoder.encode(captcha);

  BASE64Decoder decoder = new BASE64Decoder();

  byte[] bytes = decoder.decodeBuffer(imagestr);

  现方法

  import java.util.Base64.Encoder
  import java.util.Base64.Decoder
   
  Encoder encoder = Base64.getEncoder();
  String result = encoder.encodeToString(byteArray);
   
  Decoder decoder = Base64.getDecoder();
  byte[] result = decoder.decode(str);
  原因是/lib/tool.jar和/lib/rt.jar已经从Java SE 9中删除

  
  

  4