問題描述

我見過很多通過 Java 套接字發(fā)送序列化數(shù)據(jù)的示例，但我只想發(fā)送一些簡單的整數(shù)和字符串.而且，問題是我正在嘗試將這些信息傳達(dá)給用 C 編寫的二進(jìn)制文件.

I've seen lots of examples of sending serialized data over sockets in Java, but all I want is to send some simple integers and a string. And, the problem is I'm trying to communicate these to a binary written in C.

那么，底線是:我怎樣才能在 Java 中通過套接字發(fā)送一些字節(jié)?

So, bottom line: how can I just send some bytes over a socket in Java?

推薦答案

我真的不建議直接使用 Java Sockets 庫.我發(fā)現(xiàn) Netty(來自 JBoss)非常容易實(shí)現(xiàn)并且非常強(qiáng)大.Netty ChannelBuffer 類提供了許多用于編寫不同數(shù)據(jù)類型的選項(xiàng)，當(dāng)然，如果您愿意，還可以編寫自己的編碼器和解碼器來將 POJO 寫入流中.

I would really recommend not using the Java Sockets library directly. I've found Netty (from JBoss) to be really easy to implement and really powerful. The Netty ChannelBuffer class comes with a whole host of options for writing different data types and of course to can write your own encoders and decoders to write POJOs down the stream if you wish.

這個(gè)頁面是一個(gè)非常好的入門 - 我能夠在 30 分鐘內(nèi)使用自定義編碼器和解碼器制作一個(gè)相當(dāng)復(fù)雜的客戶端/服務(wù)器:http://docs.jboss.org/netty/3.2/guide/html/start.html.

This page is a really good starter - I was able to make a fairly sophisticated client/server with custom encoders and decoders in under 30 minutes reading this: http://docs.jboss.org/netty/3.2/guide/html/start.html.

如果你真的想使用 Java 套接字.套接字輸出流可以包裝在 DataOutputStream 中，它還允許您編寫許多不同的數(shù)據(jù)類型，例如:

If you really want to use Java sockets. The socket output stream can be wrapped in a DataOutputStream which allows you to write many different data types as well, for example:

new DataOutputStream(socket.getOutputStream()).writeInt(5);

希望對你有用.

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