java字节流转对象,应用于协议解析

1. 插件 JavaStruct， 下载地址
   代码示例

import struct.StructClass;
import struct.StructField;

@StructClass
public class Head {

    @StructField(order = 0)
    private short flag1; //2

    private short flagLable;

    @StructField(order = 1)
    private byte flag2;  //1

    @StructField(order = 2)
    private int flag3;   //4

    @StructField(order = 3)
    private long flag4; //8

    @StructField(order = 4)
    private byte[] flag5 = new byte[16];  //16

    @StructField(order = 5)
    private byte flag6;

    public byte getFlag6() {
        return flag6;
    }

    public void setFlag6(byte flag6) {
        this.flag6 = flag6;
    }

    public Head(){}

    public short getFlag1() {
        return flag1;
    }

    public void setFlag1(short flag1) {
        this.flag1 = flag1;
    }

    public short getFlagLable() {
        return flagLable;
    }

    public void setFlagLable(short flagLable) {
        this.flagLable = flagLable;
    }

    public byte getFlag2() {
        return flag2;
    }

    public void setFlag2(byte flag2) {
        this.flag2 = flag2;
    }

    public int getFlag3() {
        return flag3;
    }

    public void setFlag3(int flag3) {
        this.flag3 = flag3;
    }

    public long getFlag4() {
        return flag4;
    }

    public void setFlag4(long flag4) {
        this.flag4 = flag4;
    }

    public byte[] getFlag5() {
        return flag5;
    }

    public void setFlag5(byte[] flag5) {
        this.flag5 = flag5;
    }
	public static void main(String[] args) throws StructException {
        byte []data = {
                1, 2,  //4
                3,     //1
                1, 1, 1, 1, //4
                1, 2, 1, 2, 1, 2, 1, 2, //8
                2, 1, 2, 1, 1, 2, 1, 3, //16
                1, 1, 2, 1, 1, 2, 1, 3,
                4,      //1
                1, 1, 2, 1, 1, 2, 1, 3,
                1, 1, 2, 1, 1, 2, 1, 3,
        };  //1024 字节, 1字节 = 8bit

        System.out.println("Test byte[] arry len is: " + data.length);
        Head head = new Head();
        JavaStruct.unpack(head, data);

        System.out.println(head.getFlag1());
        System.out.println(head.getFlag2());
        System.out.println(head.getFlag3());
        System.out.println(head.getFlag4());
        System.out.println(head.getFlag5());
        System.out.println(head.getFlag6());
    }
}

maven 中添加本地依赖

		<dependency>
			<groupId>funcool</groupId>
			<artifactId>struct</artifactId>
			<version>0.1</version>  <!--这里测试0.1 ok-->
			<scope>system</scope>
			<systemPath>${project.basedir}/lib/javastruct-0.1.jar</systemPath>
		</dependency>