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转换为时InputStream出现BufferedImage以下错误

byte[] imgBytes = decoder.decode(encodedStr);

此行执行良好并正确生成字节数组

InputStream in = new ByteArrayInputStream(imgBytes);
BufferedImage  bImageFromConvert = ImageIO.read(in);

此行给出错误，因为它无法InputStream正确读取

Below is the error
    javax.imageio.IIOException: Error reading PNG image data
      at com.sun.imageio.plugins.png.PNGImageReader.readImage(Unknown Source)
      at com.sun.imageio.plugins.png.PNGImageReader.read(Unknown Source)
      at javax.imageio.ImageIO.read(Unknown Source)
      at javax.imageio.ImageIO.read(Unknown Source)
      at DecodeSignatureFile.generateImage(DecodeSignatureFile.java:252)
      at DecodeSignatureFile.getContents(DecodeSignatureFile.java:176)
      at DecodeSignatureFile.process(DecodeSignatureFile.java:322)
      at DecodeSignatureFile.main(DecodeSignatureFile.java:334)
Caused by: java.io.EOFException: Unexpected end of ZLIB input stream
      at java.util.zip.InflaterInputStream.fill(Unknown Source)
      at java.util.zip.InflaterInputStream.read(Unknown Source)
      at java.io.BufferedInputStream.fill(Unknown Source)
      at java.io.BufferedInputStream.read1(Unknown Source)
      at java.io.BufferedInputStream.read(Unknown Source)
      at java.io.DataInputStream.readFully(Unknown Source)
      at com.sun.imageio.plugins.png.PNGImageReader.decodePass(Unknown Source)
      at com.sun.imageio.plugins.png.PNGImageReader.decodeImage(Unknown Source)
      ... 8 more
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1 回答 1

0

该错误可能发生在之前。在 Java 中，字符串encodedStr通常不适合保存二进制数据。将它们imgBytes与原始图像进行比较。

当然，这取决于编码和解码。但其余的看起来还可以。

于 2013-04-30T10:46:59.897 回答