Java 如何通过套接字发送字符串数组对象？
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How to send String array Object over Socket?
提问by Winn
I have String array object. Lets say
我有 String 数组对象。可以说
String[] names = new String[7];
And I am also making this object persistent by storing it into file using ObjectOutputStream on my client system. I am reading the stored object using ObjectInputStream. Upto this Okay. Now I want to send this object to another system over socket.
我还通过在我的客户端系统上使用 ObjectOutputStream 将它存储到文件中来使这个对象持久化。我正在使用 ObjectInputStream 读取存储的对象。到此为止。现在我想通过套接字将此对象发送到另一个系统。
How to do it? Please help. Thanks.
怎么做？请帮忙。谢谢。
采纳答案by Ilya
You should create instance of Socket
get output streamand write to it (e.g. with ObjectOutputStream).
您应该创建Socket 的实例
获取输出流并写入它（例如使用ObjectOutputStream）。
Socket echoSocket = new Socket(hostName, portNumber);
ObjectOutputStream out = new ObjectOutputStream(echoSocket.getOutputStream());
out.writeObject(names);
You can find an example in Oracle docs: example.
Also this answershould be helpful for you
回答by Mariusz Jamro
To answer your question: in Java Array and String are serializable types, so array of strings can be converted to string (!), send over network and than deserialized (converted back to object). See: How to serialize object in java, but instead of doing that i suggest converting your data to xml, json or any other transport data format and than sending it as string. This would save you lot of trouble.
回答您的问题：在 Java 中 Array 和 String 是可序列化类型，因此字符串数组可以转换为字符串（！），通过网络发送而不是反序列化（转换回对象）。请参阅：如何在 java 中序列化对象，但我建议将您的数据转换为 xml、json 或任何其他传输数据格式，而不是将其作为字符串发送，而不是这样做。这会为你省去很多麻烦。
To go even further - instead of sending data that at very low level (sockets, streams, etc.) I would suggest creating higher level service and calling it via http. Frameworks like restletor Spring remotingare easy to set up.
更进一步 - 而不是发送非常低级别的数据（套接字、流等），我建议创建更高级别的服务并通过 http 调用它。像restlet或Spring 远程处理这样的框架很容易设置。
回答by Akkusativobjekt
A String Array object implements the Serializable interface, therefore it can be send over a network as byte stream :
String Array 对象实现了 Serializable 接口，因此它可以作为字节流通过网络发送：
Socket socket = new Socket(host, port);
ObjectOutputStream outputStream = new ObjectOutputStream(
socket.getOutputStream());
String[] names = new String[1]; // Empty at the moment
outputStream.writeObject(names);
