Question

我在这方面遇到了一些Stack问题，但找不到答案。

以下是我在PostMan中的请求和回复

以下是我的改造代码。我有一个LoginModel POJO类，其中包含用户名和令牌作为字段及其各自的getter和setter：

object ApiClient {

    val BASE_URL = "http://MyIpaddress:3005/api/"
    private var retrofit: Retrofit? = null

    val client: Retrofit
        get() {
            if (retrofit == null) {
                retrofit = Retrofit.Builder()
                        .baseUrl(BASE_URL)
                        .addConverterFactory(GsonConverterFactory.create())
                        .build()
            }
            return retrofit!!
        }
}

public interface LoginApiInterface {



    @Headers("Content-Type: application/json")
    @POST("v1/account/login")
    Call<LoginModel> saveLoginModel(@Body String body);
}

以下是用户单击LoginButton

时调用的代码

fun attemptLogin(){
        val email = et_email_activity_login.getText().toString()
        val password = et_password_activity_login.getText().toString()
        val apiInterface = ApiClient.client.create(LoginApiInterface::class.java)


        val jsonBody = JSONObject()
        jsonBody.put("email", email)
        jsonBody.put("password", password)
        val mRequestBody = jsonBody.toString()


        apiInterface.saveLoginModel(mRequestBody).enqueue(object: Callback<LoginModel>{
            override fun onFailure(call: Call<LoginModel>?, t: Throwable?) {
                Log.i("TAG",t!!.localizedMessage)
            }

            override fun onResponse(call: Call<LoginModel>?, response: Response<LoginModel>?) {

                Log.i("TAG","Post submitted"+response!!.body().toString())

            }

        } )

我在response!!.body().toString()中变为空。当我做的时候

if (response!!.code() == 400) {
                    Log.v("Error code 400",response!!.errorBody()!!.string());
                }

我收到了这个回复：

<!DOCTYPE html>
    <html lang="en">
    <head>
    <meta charset="utf-8">
    <title>Error</title>
    </head>
    <body>
    <pre>SyntaxError: Unexpected token # in JSON at position 0<br> &nbsp; &nbsp;at JSON.parse (&lt;anonymous&gt;)<br> &nbsp; &nbsp;at createStrictSyntaxError (/home/pritish/Music/foodtruck-api/foodtruck-api/node_modules/body-parser/lib/types/json.js:157:10)<br> &nbsp; &nbsp;at parse (/home/pritish/Music/foodtruck-api/foodtruck-api/node_modules/body-parser/lib/types/json.js:83:15)<br> &nbsp; &nbsp;at /home/pritish/Music/foodtruck-api/foodtruck-api/node_modules/body-parser/lib/read.js:121:18<br> &nbsp; &nbsp;at invokeCallback (/home/pritish/Music/foodtruck-api/foodtruck-api/node_modules/raw-body/index.js:224:16)<br> &nbsp; &nbsp;at done (/home/pritish/Music/foodtruck-api/foodtruck-api/node_modules/raw-body/index.js:213:7)<br> &nbsp; &nbsp;at IncomingMessage.onEnd (/home/pritish/Music/foodtruck-api/foodtruck-api/node_modules/raw-body/index.js:273:7)<br> &nbsp; &nbsp;at emitNone (events.js:115:13)<br> &nbsp; &nbsp;at IncomingMessage.emit (events.js:218:7)<br> &nbsp; &nbsp;at endReadableNT (_stream_readable.js:1054:12)<br> &nbsp; &nbsp;at _combinedTickCallback (internal/process/next_tick.js:138:11)<br> &nbsp; &nbsp;at process._tickDomainCallback (internal/process/next_tick.js:218:9)</pre>
    </body>
    </html>

Answer 1

您确定请求是否成功？

添加http登录拦截器以查看在发出实际请求时您发送和接收的内容。（https://github.com/square/okhttp/tree/master/okhttp-logging-interceptor）

还要记住，对于4xx http响应代码调用Retrofits onResponse，然后你的body（）为null。对于这些情况，您应该使用errorBody。（onFailure需要500个错误代码和其他问题，如超时等......

在onRespose中也要进行以下检查。

if (response.isSuccessful()) { // checks if res code is in [200..300)
   // Parse the response.body()
} else {
   // Parse the response.errorBody()
}

Answer 2

问题出在我的服务器端代码中。我应该在发布数据后传递JSON响应。

此链接也有很多帮助：

Is there really more messages than one page capacity (default is 20)?
Check that pagination is declared before postman in the INSTALLED_APPS setting.
See if it’s better by disabling postman/templatetags/pagination_tags.py and .pyc (rename or move the files).

改造后的帖子给出了无响应

2 个答案: