如何在 OkHttp Interceptor 中获取方法的返回类型? [英] How to get method's return type in OkHttp Interceptor?

问题描述

通过okhttp3.Request#tag(Invocation::class.java)，我们可以得到methodName、annotations等.有没有使用 Invocation 类获取方法返回类型的方法.

Via okhttp3.Request#tag(Invocation::class.java), we can get methodName, annotations etc. Is there any way to get the method's return type using Invocation class.

我试过了

• request.tag(Invocation::class.java)!!.method().returnType
• request.tag(Invocation::class.java)!!.method().genericReturnType

但它们都只是返回class java.lang.Object，即使它是一个List.

but both of them simply return class java.lang.Object, even it's a List.

@GET("products")
suspend fun getProducts(): List<Product>  // I need to get at least `List` as a String for this method

@GET("product")
suspend fun getProduct(): Product // I need to get at least `Object` as a String for this method

推荐答案

它是一个挂起函数，所以 java.lang reflect.Method 的返回类型不是你声明的返回类型.查看反编译的字节码，您将看到 Java 方法以及声明的返回类型在签名中的位置.

It's a suspend function so the return type of the java.lang reflect.Method is not the return type you declared. Look a the decompiled bytecode and you'll see the Java method and where the declared return type ends up in the signature.

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