public void intToByte() { // -128 到 127 int i = 1; byte b = (byte)i; Assert.assertTrue(b==1); i = -1 ; b = (byte)i; Assert.assertTrue(b==-1); //超过127 i = 128 ; b = (byte)i; Assert.assertTrue(b==-128); i = 129 ; b = (byte)i; Assert.assertTrue(b=...
Java Byte to ByteBuf Conversion In Java, aByteBufis a data structure provided by Netty, which is used for handling data efficiently in network applications. Sometimes, we may need to convert a Java byte array to aByteBuffor network I/O operations. In this article, we will discuss how to...
Byte 类是原语 byte 的_包装器_。这应该做的工作: byte[] bytes = new byte[10]; Byte[] byteObjects = new Byte[bytes.length]; int i=0; // Associating Byte array values with bytes. (byte[] to Byte[]) for(byte b: bytes) byteObjects[i++] = b; // Autoboxing. ... int j=0; /...
publicstaticbyte[]toByteArray(Stringfilename)throwsIOException{ Filef=newFile(filename); if(!f.exists()){ thrownewFileNotFoundException(filename); } ByteArrayOutputStreambos=newByteArrayOutputStream((int)f.length()); BufferedInputStreamin=null; try{ in=newBufferedInputStream(newFileInputStream(f))...
一、byte[]=>Blob 我们可以通过Hibernate提供的表态方法来实现如: org.hibernate.Hibernate.Hibernate.createBlob(new byte[1024]); 二、Blob=>byte[] 目前没有找到好一点的API提供,所以只能自已来实现。示例如下: /** * 把Blob类型转换为byte数组类型 * @param blob * @return */ private byte[] blobToByt...
} 下面是由存有bit值的byte[]数组 转化为一个byte,其思想正好与上面相反; 具体代码如下: publicstaticbyteBitToByte(byte[] a) {bytetemp = (byte) 0;for(inti = 0; i < bits; i++) { temp= temp | a[i] <
byte[] bytes = new byte[buffer.remaining()];buffer.get(bytes);// process bytes...buffer.clear();} 最后，可以使用InputStream.toByteArray()方法，该方法会一次性读取所有数据并返回一个byte数组：byte[] bytes = new byte[in.available()];in.read(bytes);以上就是Java InputStream流转换...
/** * int转字节数组 大端模式 */ public static byte[] intToByteArrayBigEndian(int x) { byte[] bytes = new byte[4]; bytes[0] = (byte) (x >> 24); bytes[1] = (byte) (x >> 16); bytes[2] = (byte) (x >> 8); bytes[3] = (byte) x; return bytes; } /** * int转...
(byte)((b >> 5) & 0x1) + (byte)((b >> 4) & 0x1) + (byte)((b >> 3) & 0x1) + (byte)((b >> 2) & 0x1) + (byte)((b >> 1) & 0x1) + (byte)((b >> 0) & 0x1); } /** * Bit转Byte */ public static byte BitToByte(String byteStr) { ...
import java.nio.ByteBuffer; public class ByteArrayToByteBufferExample { public static void main(String[] args) { // 示例byte数组 byte[] byteArray = {1, 2, 3, 4, 5}; // 步骤 1: 创建一个ByteBuffer对象,容量与byte数组相同 ByteBuffer buffer = ByteBuffer.allocate(byteArray.length); // 步骤...