Question

我正在阅读SimpleXMLRPCServer上register_instance方法的文档。它的方法签名为：

SimpleXMLRPCServer.register_instance(instance[, allow_dotted_names])

我读到了_dispatch()方法：

如果实例包含_dispatch（）方法，则使用请求的方法名称和请求中的参数调用它。它的API是def _dispatch(self, method, params)（请注意，params不代表变量参数列表）。如果它调用底层函数来执行其任务，则该函数被调用为func(*params)，扩展参数列表。作为结果，_dispatch()的返回值将返回给客户端。如果实例没有_dispatch()方法，则会搜索与所请求方法名称匹配的属性

这个_dispatch()方法是什么？

Answer 1

我浏览了SimpleXMLRPCServer的代码，发现了_dispatch方法。这是在客户端请求时解析对服务器端函数的调用的方法。这是doc声明 - “

        XML-RPC calls are forwarded to a registered function that
        matches the called XML-RPC method name. If no such function
        exists then the call is forwarded to the registered instance,
        if available.

        If the registered instance has a _dispatch method then that
        method will be called with the name of the XML-RPC method and
        its parameters as a tuple
        e.g. instance._dispatch('add',(2,3))

        If the registered instance does not have a _dispatch method
        then the instance will be searched to find a matching method
        and, if found, will be called.

        Methods beginning with an '_' are considered private and will
        not be called."

什么是python中SimpleXMLRPCServer中的`_dispatch（）`方法

1 个答案: