java从输入流中获取数据并返回字节数组示例

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复制代码 代码如下:

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
//从输入流中获取数据并以字节数组返回
public class StreamTool {
/**
* 从输入流获取数据
* @param inputStream
* @return
* @throws Exception
*/
public static byte[] readInputStream(InputStream inputStream) throws Exception{
byte[] buffer = new byte[1024];
int len = -1;
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
while((len = inputStream.read(buffer)) != -1){
outputStream.write(buffer, 0, len);
}
outputStream.close();
inputStream.close();
return outputStream.toByteArray();
}
}