byte[]和InputStream的相互转换详解 |
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byte[]和InputStream的相互转换详解
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1：byte[]转换为InputStream InputStream sbs = new ByteArrayInputStream(byte[] buf); 2：InputStream转换为InputStreambyte[] ByteArrayOutputStream swapStream = new ByteArrayOutputStream(); byte[] buff = new byte[100]; //buff用于存放循环读取的临时数据 int rc = 0; while ((rc = inStream.read(buff, 0, 100)) > 0) { swapStream.write(buff, 0, rc); } byte[] in_b = swapStream.toByteArray(); //in_b为转换之后的结果 Java代码
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
public class ByteToInputStream {
public static final InputStream byte2Input(byte[] buf) {
return new ByteArrayInputStream(buf);
}
public static final byte[] input2byte(InputStream inStream)
throws IOException {
ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
byte[] buff = new byte[100];
int rc = 0;
while ((rc = inStream.read(buff, 0, 100)) > 0) {
swapStream.write(buff, 0, rc);
}
byte[] in2b = swapStream.toByteArray();
return in2b;
}
}
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