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我用retrofit2连接一个api并接收数据数据是嵌套的

D/OkHttp: {"success":{"token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9}}

如果数据如上例所示，正常接收，但如果如下，则报错

D/OkHttp: {"message":"Unauthenticated."}

我为第一个示例执行此操作

data class Response(var success : AutoLoginUser)
data class AutoLoginUser(var token: String)
...
...
...
Log.w("OK FROM SERVER", response.body()!!.success!!.token)

对于第二个示例，我执行以下操作

data class UserDetails(var message : String)
...
...
...
Log.w("OK FROM SERVER", response.body()!!.message)

我得到的第二个例子的错误

D/OkHttp: <-- 401 Unauthorized http://192.168.1.8/api/details (252ms)
Host: 192.168.1.8
Date: Wed, 02 Dec 2020 09:01:03 GMT
Connection: close
X-Powered-By: PHP/7.4.12
Cache-Control: no-cache, private
Date: Wed, 02 Dec 2020 09:01:03 GMT
Content-Type: application/json
Access-Control-Allow-Origin: *
D/OkHttp: {"message":"Unauthenticated."}
<-- END HTTP (30-byte body)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: ir.i9i.splendor, PID: 5740
java.lang.NullPointerException
    at ir.i9i.splendor.Profile$getUserDetails$1.onResponse(Profile.kt:39)
    at   retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$1.run(ExecutorCallAdapterFactory.java:70)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5254)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
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1 回答 1

1

errorBody()您可以使用以下onResponse()方法处理它Retrofit：

if (response.code() == 200 && response.isSuccessful) {

                       // do whatever you want when the response is 200 and isSuccessful

                    } else {

                        if (response.errorBody() != null) {

                            val jsonObj =
                                JSONObject(response.errorBody()!!.charStream().readText())
                            val getMessage = jsonObj.getString("message")
                                    
                             // Here get the message and print it out
                            showSnackBar(yourActivity, getMessage)

                        }
                    }

因为您检索401到错误响应，您将能够在onResponse()方法中处理此类错误。

于 2020-12-02T09:41:55.173 回答