Question

我正在尝试从gitHub Api获取用户名，但改型响应始终返回null。当我尝试在烤面包中显示用户名时，我看到：null。我尝试了更改改造路径，但没有成功。一切看起来都很好，但我不知道为什么总是会出现此错误。

interface GitHubApi{

@GET("/users/{user}")
fun getUser(@Path("user") user: String): Call<User>

companion object Factory {
    fun getClient(): GitHubApi {
        val url = "https://api.github.com/"

        val interceptor = HttpLoggingInterceptor()
            .apply { level = HttpLoggingInterceptor.Level.BODY }

        val okHttpClient = OkHttpClient.Builder()
            .addInterceptor(interceptor)
            .build()

        val retrofit = Retrofit.Builder()
            .baseUrl(url)
            .addConverterFactory(GsonConverterFactory.create())
            .client(okHttpClient)
            .build()

        return retrofit.create(GitHubApi::class.java)
    }
}}

用户模型：

data class User(val userName: String)

MainActivity：

    private fun createApiService() : GitHubApi{
    val url = "https://api.github.com/"

    val interceptor = HttpLoggingInterceptor()
        .apply { level = HttpLoggingInterceptor.Level.BODY }

    val okHttpClient = OkHttpClient.Builder()
        .addInterceptor(interceptor)
        .build()

    val retrofit = Retrofit.Builder()
        .baseUrl(url)
        .addConverterFactory(GsonConverterFactory.create())
        .client(okHttpClient)
        .build()

    return retrofit.create(GitHubApi::class.java)
}

private fun loadData() {
    val api  = GitHubApi.getClient()

    api.getUser("fabpot").enqueue(object : Callback<User> {
        override fun onFailure(call: Call<User>, t: Throwable) {
            t.printStackTrace()
        }

        override fun onResponse(
            call: Call<User>,
            response: Response<User>
        ) {
            if (!response.isSuccessful) {
                runOnUiThread { showErrorMessage(response.code().toString()) }
            }

            response.body()?.let { showErrorMessage(it.repoName) }
        }
    })
}

Answer 1

尝试在您的@GET方法中删除斜杠“ /”。

Answer 2

github api中不存在关键的userName。

尝试以这种方式编辑数据类。

data class User(val name: String)

改造响应始终为空

2 个答案: