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Java创建要发送到服务器的数据包字节数组

[英]Java Creating a packet byte array to send to server

原文 2015-09-26 06:24:00 3 1 java/ tcp/ bytearray

How would one go about making a byte[] that is a packet that needs to be run through an RC4 encryption class and then sent to a server? 如何制作一个byte []，它是一个需要通过RC4加密类运行然后发送到服务器的数据包？

So let's say I need the packet to stsrt with a string, followed with an int, byte, int, string. 因此，假设我需要使用字符串将数据包发送到stsrt，然后是int，byte，int，string。 How would I create that as a byte array? 如何将其创建为字节数组？ (Byte[]) （字节[]）

Thanks! 谢谢！

1 个解决方案

OK, so you have a data structure containing strings, integers and bytes, that you want to serialize to a byte array. 好的，所以您有一个包含字符串，整数和字节的数据结构，您想要序列化为字节数组。 There are several options: 有几种选择：

create a Serializable class containing all this information as fields, and use an ObjectOutputStream to write it. 创建一个包含所有这些信息作为字段的Serializable类，并使用ObjectOutputStream进行编写。 Beware: the result will only be easily readable by a Java program using the exact same class. 注意：仅使用完全相同的类的Java程序才能轻松读取结果。
create a class containing all this information as fields, and use a JSON object mapper (like Jackson) to write it. 创建一个包含所有这些信息作为字段的类，并使用JSON对象映射器（如Jackson）编写它。
create a class containing all this information as fields, and use an XML object mapper (like JAXB) to write it. 创建一个包含所有这些信息作为字段的类，并使用XML对象映射器（如JAXB）来编写它。
design a binary representation of this structure, that can be transformed back into the individual parts, and use a DataOutputStream to write it. 设计此结构的二进制表示形式，可以将其转换回各个部分，并使用DataOutputStream进行编写。
Use protocol buffers 使用协议缓冲区
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