发件人:
ObjectA A = new ObjectA();
ObjectB B = new ObjectB();
//Connection is created
socket.writeObject(B);
接收者:
//不知道如何找到我应该将对象转换为:(
有什么方法可以在同一对象流上发送两个不同的对象吗？
-PK
最佳答案
使用instanceof
A a = new A();
B b = new B();
C c = new C();
//say obj is the object you read from your socket.
if(a instanceof A){
System.out.println("a is instance of A, obj can be cast as A");
A remoteA = (A)obj; //wont throw classcast exception!!
}
if(b instanceof B){
System.out.println("b is instance of B, obj can be cast as B");
B remoteB = (B)obj; //wont throw classcast exception!!
}
if(c instanceof C){
System.out.println("c is instance of C,obj can be cast as C");
C remoteC = (C)obj; //wont throw classcast exception!!
}
这两个对象相关吗？一个继承另一个？如果是这样，则需要显式检查。
说出A(上级)-> B
B b = new B()
因此
b instanceof B和b instanceof A将为true。因此，您需要谨慎。首先检查 child 类(class)。关于java - Java中同一套接字上的两个不同的对象，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/4121436/