How can I transmit the complex data to client？
You need to serialized the data. As long as both client and server know what they use to (de)serialize the data, any serializer that can serialize your data goes. If the client is written in a different language than the server, you may prefer to pick a serializer for which libraries have been written in both languages.

In reply to Re: How to transmit complex data to client? by JavaFan
in thread How to transmit complex data to client? by mattdeans

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