ByteArrayOutputStream 与InputStream 互相转换

InputStream 转为 ByteArrayOutputStream

public Reader(InputStream input) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len;
try {
while ((len = input.read(buffer)) > -1) {
baos.write(buffer, 0, len);
}
baos.flush();
} catch (IOException e) {
throw new Exception("Illegal flow.");
} finally {
try {
input.close();
} catch (IOException e) {
logger.error("file stream shutdown failed.");
}
}
this.baos = baos;
}
 
ByteArrayOutputStream 转为 InputStream

private InputStream streamTran(ByteArrayOutputStream in) {
return new ByteArrayInputStream(in.toByteArray());
}

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原文链接：https://blog.csdn.net/u011067966/article/details/97757260