java.io.IOException:使用BouncyCastle关闭流

我正在尝试使用BouncyCastle使用PGPencryOption加密文件。 当我将加密数据格式化为AsciaMored时，解密也可以正常工作

但当我禁用AsciaMored时，它会生成大约12kb的文件[加密格式化]。 我试着用同样的代码来解密，现在它抛出了下面的错误

java.io.IOException: Stream closed
at java.io.BufferedInputStream.getInIfOpen(Unknown Source)
at java.io.BufferedInputStream.available(Unknown Source)
at org.bouncycastle.openpgp.PGPUtil$BufferedInputStreamExt.available(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream.available(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream$PartialInputStream.available(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream.available(Unknown Source)
at java.io.FilterInputStream.available(Unknown Source)
at org.bouncycastle.crypto.io.CipherInputStream.nextChunk(Unknown Source)
at org.bouncycastle.crypto.io.CipherInputStream.read(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream.read(Unknown Source)
at org.bouncycastle.openpgp.PGPEncryptedData$TruncatedStream.read(Unknown Source)
at java.io.InputStream.read(Unknown Source)
at org.bouncycastle.util.io.TeeInputStream.read(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream.read(Unknown Source)
at org.bouncycastle.openpgp.PGPCompressedData$1.fill(Unknown Source)
at java.util.zip.InflaterInputStream.read(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream.read(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream$PartialInputStream.read(Unknown Source)
at org.bouncycastle.bcpg.BCPGInputStream.read(Unknown Source)
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at java.io.BufferedReader.fill(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)

测试等级：

public void testDecrypt() throws Exception {
        this.pgpFileProcessor.setPassphrase(PASSPHRASE);
        this.pgpFileProcessor.setSecretKeyFileName(PRI_KEY_FILE);
        this.pgpFileProcessor.setAsciiArmored(false);

        this.pgpFileProcessor.setInputFileName(OUTPUT);
        this.pgpFileProcessor.setOutputFileName(TEMP_SG);
        InputStream is = this.pgpFileProcessor.decryptToStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));

        StringBuilder sb = new StringBuilder();

        String line;
        while ((line = br.readLine()) != null) {
            sb.append(line + "\n");
        }

        System.out.println(sb.toString());

        br.close();
        is.close();
    }

Util类

public InputStream decryptToStream() throws Exception {
    FileInputStream in = new FileInputStream(this.inputFileName);
    FileInputStream keyIn = new FileInputStream(this.secretKeyFileName);
    InputStream inputStream = this.pgpUtils.decryptFile(in, keyIn, this.passphrase.toCharArray());
    in.close();
    keyIn.close();
    return inputStream;
}

实际代码：

public InputStream decryptFile(InputStream in, InputStream keyIn, char[] passwd) throws Exception {
    InputStream decryptedData = null;

    Security.addProvider(new BouncyCastleProvider());
    in = org.bouncycastle.openpgp.PGPUtil.getDecoderStream(in);
    PGPObjectFactory pgpF = new PGPObjectFactory(in);
    PGPEncryptedDataList enc;

    Object o = pgpF.nextObject();
    if (o instanceof PGPEncryptedDataList) {
        enc = (PGPEncryptedDataList) o;
    } else {
        enc = (PGPEncryptedDataList) pgpF.nextObject();
    }

    Iterator<PGPPublicKeyEncryptedData> it = enc.getEncryptedDataObjects();
    PGPPrivateKey sKey = null;
    PGPPublicKeyEncryptedData pbe = null;

    while (sKey == null && it.hasNext()) {
        pbe = it.next();

        sKey = findPrivateKey(keyIn, pbe.getKeyID(), passwd);
    }

    if (sKey == null) {
        in.close();
        throw new IllegalArgumentException("Secret key for message not found.");
    }
    if (pbe == null) {
        in.close();
        throw new IllegalArgumentException("Encrypted Data is Malformed");
    }

    InputStream clear = pbe.getDataStream(new BcPublicKeyDataDecryptorFactory(sKey));

    PGPObjectFactory plainFact = new PGPObjectFactory(clear);

    Object message = plainFact.nextObject();

    if (message instanceof PGPCompressedData) {
        PGPCompressedData cData = (PGPCompressedData) message;
        PGPObjectFactory pgpFact = new PGPObjectFactory(cData.getDataStream());

        message = pgpFact.nextObject();
    }

    if (message instanceof PGPLiteralData) {
        PGPLiteralData ld = (PGPLiteralData) message;

        decryptedData = ld.getInputStream();
        /*
         * int ch; while ((ch = unc.read()) >= 0) { out.write(ch); }
         */

    } else if (message instanceof PGPOnePassSignatureList) {
        in.close();
        clear.close();
        throw new PGPException("Encrypted message contains a signed message - not literal data.");
    } else {
        in.close();
        clear.close();
        throw new PGPException("Message is not a simple encrypted file - type unknown.");
    }
    if (pbe.isIntegrityProtected()) {
        if (!pbe.verify()) {
            in.close();
            clear.close();
            throw new PGPException("Message failed integrity check");
        }
    }
    clear.close();
    in.close();
    return decryptedData;
}

公共InputStream解密文件（InputStream-in、InputStream-keyIn、char[]passwd）引发异常{
InputStream decryptedData=null；
addProvider（新的BouncyCastleProvider（））；
in=org.bouncycastle.openpgp.PGPUtil.getDecoderStream（in）；
PGPObjectFactory pgpF=新的PGPObjectFactory（in）；
PGPencryptedatalist enc；
对象o=pgpF.nextObject（）；
if（o PGPEncryptedDataList的实例）{
enc=（pGpencryptedatalist）o；
}否则{
enc=（pgpencryptedatalist）pgpF.nextObject（）；
}
迭代器it=enc.getEncryptedDataObjects（）；
PGPPrivateKey sKey=null；
PGPPublicKeyEncryptedData pbe=null；
while（sKey==null&&it.hasNext（））{
pbe=it.next（）；
sKey=findPrivateKey（keyIn，pbe.getKeyID（），passwd）；
}
if（sKey==null）{
in.close（）；
抛出新的IllegalArgumentException（“未找到消息的密钥”）；
}
如果（pbe==null）{
in.close（）；
抛出新的IllegalArgumentException（“加密数据格式不正确”）；
}
InputStream clear=pbe.getDataStream（新的BcPublicKeyDataDecryptorFactory（sKey））；
PGPObjectFactory plainFact=新的PGPObjectFactory（清除）；
对象消息=plainFact.nextObject（）；
if（PGPCompressedData的消息实例）{
PGPCompressedData cData=（PGPCompressedData）消息；
PGPObjectFactory pgpFact=新的PGPObjectFactory（cData.getDataStream（））；
message=pgpFact.nextObject（）；
}
if（PGPLiteralData的消息实例）{
PGPLiteralData ld=（PGPLiteralData）消息；
decryptedData=ld.getInputStream（）；
/*
*int ch；while（（ch=unc.read（））>=0）{out.write（ch）；}
*/
}else if（PGPOnePassSignatureList的消息实例）{
in.close（）；
清除。关闭（）；
抛出新的PGPException（“加密消息包含签名消息-而不是文字数据”）；
}否则{
in.close（）；
清除。关闭（）；
抛出新的PGPException（“消息不是简单的加密文件-类型未知”）；
}
如果（pbe.isIntegrityProtected（））{
如果（！pbe.verify（））{
in.close（）；
清除。关闭（）；
抛出新的PGPException（“消息完整性检查失败”）；
}
}
清除。关闭（）；
in.close（）；
返回解密数据；
}

您正在关闭

解密文件（）最后一行中的流。

：

不要关闭那个里的小溪。通常规则是：在打开流的相同方法中关闭流。模式应如下所示：

InputStream in = null;
try {
    in = ...
    // use the stream here.
} finally {
    if (in != null) {
        in.close();
    }
}

或者，如果您使用的是java 7：

try (
    InputStream in = ...; // initialize stream here

) {
    // use the stream here.
}

---

您不必关闭初始化的流

try（）

。它将自动关闭。享受java 7

您正在关闭

decryptFile（）

最后一行中的流：

不要关闭那个里的小溪。通常规则是：在打开流的相同方法中关闭流。模式应如下所示：

InputStream in = null;
try {
    in = ...
    // use the stream here.
} finally {
    if (in != null) {
        in.close();
    }
}

或者，如果您使用的是java 7：

try (
    InputStream in = ...; // initialize stream here

) {
    // use the stream here.
}

您不必关闭初始化的流

try（）

。它将自动关闭。享受java 7

Thnks 4关于java 7的信息（自动关闭）Thnks 4关于java 7的信息（自动关闭）