问题描述
在客户端和服务器类中，我都有一个名为Data的完全相同的内部类。使用以下命令从服务器发送此Data对象：
In both client and server classes, I have an exact same inner class called Data. This Data object is being sent from the server using:
ObjectOutputStream output= new ObjectOutputStream(socket.getOutputStream());
output.writeObject(d);
（其中d是数据对象）
在客户端收到此对象并转换为Data对象：
This object is received on the client side and cast to a Data object:
ObjectInputStream input = new ObjectInputStream(socket.getInputStream());
Object receiveObject = input.readObject();
if (receiveObject instanceof Data){
Data receiveData = (Data) receiveObject;
// some code here...
}
我得到了a $ code> java.lang.ClassNotFoundException：此行上的TCPServer $ Data Object receiveObject = input.readObject（）;
I'm getting a java.lang.ClassNotFoundException: TCPServer$Data on this line Object receiveObject = input.readObject();
我的猜测是它试图在服务器端寻找Data类而无法找到它，但我不确定...我该如何修复这个？
My guess is that it's trying to to look for the Data class in the Server side and can't find it, but I'm not sure... How do I fix this?
推荐答案
你要做的是以下几点：
class TCPServer {
/* some code */
class Data {
}
}
class TCPClient {
/* some code */
class Data {
}
}
然后，您正在序列化TCPServer $ Data并尝试将其反序列化为TCPClient $ Data。相反，你会想要这样做：
Then you are serializing a TCPServer$Data and trying to unserialize it as a TCPClient$Data. Instead you are going to want to be doing this:
class TCPServer {
/* some code */
}
class TCPClient {
/* some code */
}
class Data {
/* some code */
}
然后确保数据类可用于客户端和服务器程序。
Then make sure the Data class is available to both the client and the server programs.
这篇关于ObjectInputStream readObject（）：ClassNotFoundException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！