C# 使用反射获取方法名和参数
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Using reflection to get method name and parameters
提问by Ash
I am trying to workout a way to programatically create a key for Memcached, based on the method name and parameters. So if I have a method,
我正在尝试根据方法名称和参数以编程方式为Memcached创建密钥。所以如果我有一个方法，
string GetName(int param1, int param2);
it would return:
它会返回：
string key = "GetName(1,2)";
I know you can get the MethodBase using reflection, but how do I get the parameters values in the string, not the parameter types?
我知道您可以使用反射获取 MethodBase，但是如何获取字符串中的参数值，而不是参数类型？
采纳答案by Scott Muc
What you're looking for is an interceptor. Like the name says, an interceptor intercepts a method invocation and allows you to perform things before and after a method is called. This is quite popular in many caching and logging frameworks.
你正在寻找的是一个拦截器。顾名思义，拦截器拦截方法调用并允许您在调用方法之前和之后执行操作。这在许多缓存和日志框架中非常流行。
回答by Ash
This is what I've come up with (however, it may not be particularly efficient):
这是我想出的（但是，它可能不是特别有效）：
MethodBase method = MethodBase.GetCurrentMethod();
string key = method.Name + "(";
for (int i = 0; i < method.GetParameters().Length; i++) {
key += method.GetParameters().GetValue(i);
if (i < method.GetParameters().Length - 1)
key += ",";
}
key += ")";
回答by Jon Skeet
You can't get method parameter values from reflection. You'd have to use the debugging/profiling API. You can get the parameter names and types, but not the parameters themselves. Sorry...
您无法从反射中获取方法参数值。您必须使用调试/分析 API。您可以获取参数名称和类型，但不能获取参数本身。对不起...
