Android Object Serialization getBytes(Serializable obj)

Description

get Bytes

License

Open Source License

Declaration

public static byte[] getBytes(Serializable obj) throws IOException 

Method Source Code

//package com.java2s;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

import java.io.ObjectOutputStream;
import java.io.Serializable;

import java.nio.charset.Charset;

public class Main {
    public static byte[] getBytes(short data) {
        byte[] bytes = new byte[2];
        bytes[0] = (byte) (data & 0xff);
        bytes[1] = (byte) ((data & 0xff00) >> 8);
        return bytes;
    }//from  w w w.j  a  v  a 2s. co m

    public static byte[] getBytes(char data) {
        byte[] bytes = new byte[2];
        bytes[0] = (byte) (data);
        bytes[1] = (byte) (data >> 8);
        return bytes;
    }

    public static byte[] getBytes(int data) {
        byte[] bytes = new byte[4];
        bytes[0] = (byte) (data & 0xff);
        bytes[1] = (byte) ((data & 0xff00) >> 8);
        bytes[2] = (byte) ((data & 0xff0000) >> 16);
        bytes[3] = (byte) ((data & 0xff000000) >> 24);
        return bytes;
    }

    public static byte[] getBytes(long data) {
        byte[] bytes = new byte[8];
        bytes[0] = (byte) (data & 0xff);
        bytes[1] = (byte) ((data >> 8) & 0xff);
        bytes[2] = (byte) ((data >> 16) & 0xff);
        bytes[3] = (byte) ((data >> 24) & 0xff);
        bytes[4] = (byte) ((data >> 32) & 0xff);
        bytes[5] = (byte) ((data >> 40) & 0xff);
        bytes[6] = (byte) ((data >> 48) & 0xff);
        bytes[7] = (byte) ((data >> 56) & 0xff);
        return bytes;
    }

    public static byte[] getBytes(float data) {
        int intBits = Float.floatToIntBits(data);
        return getBytes(intBits);
    }

    public static byte[] getBytes(double data) {
        long intBits = Double.doubleToLongBits(data);
        return getBytes(intBits);
    }

    public static byte[] getBytes(String data, String charsetName) {
        Charset charset = Charset.forName(charsetName);
        return data.getBytes(charset);
    }

    public static byte[] getBytes(String data) {
        return getBytes(data, "GBK");
    }

    public static byte[] getBytes(Serializable obj) throws IOException {
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bout);
        out.writeObject(obj);
        out.flush();
        byte[] bytes = bout.toByteArray();
        bout.close();
        out.close();
        return bytes;
    }
}

Related

1. saveObjectAsFile(String filename, Object object)
2. writeObjectToFile(File fileLocation, Object obj)
3. writeObjectToFile(Serializable obj, String filename)
4. objectToString(Object o)
5. stringToObject(String s)
6. deserialize(final File file, final long serialTtl)
7. serialize(final File file, final Object o)
8. saveObject(Context context, String fileName, Object obj)
9. writeObjectToFile(Object obj, String filePath)