Retrofit android 预期为 BEGIN_ARRAY 但在第 1 行第 2 列路径 $

问题描述 投票:0回答:1

我是 Retrofit 的新手,我遇到了一个奇怪的问题。我收到以下错误 -->

预期为 BEGIN_ARRAY 但在第 1 行第 2 列路径为 BEGIN_OBJECT $

然而,当我使用 curl 命令到达端点时,我得到了一个 json 数组。

对于出于某种原因不想使用 JsonObject 作为响应的 Retrofit 来阅读整个内容的人来说,json 是不同的。它看起来像下面这样。我应该提到这是来自 Firebase 实时数据库对象

这是来自 Retrofit 的 JsonObject

{
  "jobs": [
    {
      "job": {
        "city": "Toronto",
        "job_id": 1,
        "owner_id_map": 1,
        "status": 0,
        "title": "500 Posters in Toronto"
      },
      "posters": [
        {
          "poster": {
            "job_id_map": 2,
            "latitude": 43.64526533333377,
            "locationDescription": "Union Station",
            "longitude": -79.38060468539248,
            "poster_id": 1,
            "qr_code": "code2",
            "worker_id": 1
          },
          "worker": [
            {
              "workerName": "Noris",
              "worker_id": 1
            }
          ]
        },
        {
          "poster": {
            "job_id_map": 2,
            "latitude": 43.64295669900133,
            "locationDescription": "Queen and Spadina",
            "longitude": -79.39368099382459,
            "poster_id": 2,
            "qr_code": "code3",
            "worker_id": 2
          },
          "worker": [
            {
              "workerName": "Jack",
              "worker_id": 2
            }
          ]
        },
        {
          "poster": {
            "job_id_map": 3,
            "latitude": 43.76892443268843,
            "locationDescription": "North York Civic Center",
            "longitude": -79.41292484238735,
            "poster_id": 3,
            "qr_code": "code4",
            "worker_id": 3
          },
          "worker": [
            {
              "workerName": "Nicky",
              "worker_id": 3
            }
          ]
        }
      ],
      "workers": [
        {
          "workerName": "Noris",
          "worker_id": 1
        },
        {
          "workerName": "Jack",
          "worker_id": 2
        },
        {
          "workerName": "Nicky",
          "worker_id": 3
        },
        {
          "workerName": "Davis",
          "worker_id": 4
        },
        {
          "workerName": "Argyle",
          "worker_id": 5
        },
        {
          "workerName": "James",
          "worker_id": 6
        }
      ]
    },
    {
      "job": {
        "city": "Montreal",
        "job_id": 2,
        "owner_id_map": 1,
        "status": 1,
        "title": "20 Posters in Montreal"
      },
      "posters": [],
      "workers": [
        {
          "workerName": "Noris",
          "worker_id": 1
        },
        {
          "workerName": "Jack",
          "worker_id": 2
        },
        {
          "workerName": "Nicky",
          "worker_id": 3
        },
        {
          "workerName": "Davis",
          "worker_id": 4
        },
        {
          "workerName": "Argyle",
          "worker_id": 5
        },
        {
          "workerName": "James",
          "worker_id": 6
        }
      ]
    },
    {
      "job": {
        "city": "Ottawa",
        "job_id": 3,
        "owner_id_map": 2,
        "status": 2,
        "title": "350 Posters in Ottawa"
      },
      "posters": [
        {
          "poster": {
            "job_id_map": 4,
            "latitude": 43.63904362027761,
            "locationDescription": "Harbourfront",
            "longitude": -79.38193214610098,
            "poster_id": 4,
            "qr_code": "code5",
            "worker_id": 0
          },
          "worker": []
        },
        {
          "poster": {
            "job_id_map": 5,
            "latitude": 43.68347235901327,
            "locationDescription": "Bathurst and St Clair",
            "longitude": -79.41851002097324,
            "poster_id": 5,
            "qr_code": "code6",
            "worker_id": 0
          },
          "worker": []
        },
        {
          "poster": {
            "job_id_map": 2,
            "latitude": 43.6958481647278,
            "locationDescription": "Dufferin and Eglinton",
            "longitude": -79.45035794609939,
            "poster_id": 6,
            "qr_code": "code7",
            "worker_id": 0
          },
          "worker": []
        }
      ],
      "workers": [
        {
          "workerName": "Noris",
          "worker_id": 1
        },
        {
          "workerName": "Jack",
          "worker_id": 2
        },
        {
          "workerName": "Nicky",
          "worker_id": 3
        },
        {
          "workerName": "Davis",
          "worker_id": 4
        },
        {
          "workerName": "Argyle",
          "worker_id": 5
        },
        {
          "workerName": "James",
          "worker_id": 6
        }
      ]
    },
    {
      "job": {
        "city": "Calgary",
        "job_id": 4,
        "owner_id_map": 2,
        "status": 0,
        "title": "10 Posters in Calgary"
      },
      "posters": [
        {
          "poster": {
            "job_id_map": 2,
            "latitude": 43.64526533333377,
            "locationDescription": "Union Station",
            "longitude": -79.38060468539248,
            "poster_id": 1,
            "qr_code": "code2",
            "worker_id": 1
          },
          "worker": [
            {
              "workerName": "Noris",
              "worker_id": 1
            }
          ]
        },
        {
          "poster": {
            "job_id_map": 2,
            "latitude": 43.64295669900133,
            "locationDescription": "Queen and Spadina",
            "longitude": -79.39368099382459,
            "poster_id": 2,
            "qr_code": "code3",
            "worker_id": 2
          },
          "worker": [
            {
              "workerName": "Jack",
              "worker_id": 2
            }
          ]
        },
        {
          "poster": {
            "job_id_map": 3,
            "latitude": 43.76892443268843,
            "locationDescription": "North York Civic Center",
            "longitude": -79.41292484238735,
            "poster_id": 3,
            "qr_code": "code4",
            "worker_id": 3
          },
          "worker": [
            {
              "workerName": "Nicky",
              "worker_id": 3
            }
          ]
        }
      ],
      "workers": [
        {
          "workerName": "Noris",
          "worker_id": 1
        },
        {
          "workerName": "Jack",
          "worker_id": 2
        },
        {
          "workerName": "Nicky",
          "worker_id": 3
        },
        {
          "workerName": "Davis",
          "worker_id": 4
        },
        {
          "workerName": "Argyle",
          "worker_id": 5
        },
        {
          "workerName": "James",
          "worker_id": 6
        }
      ]
    }
  ],
  "status": "success"
}

有人知道为什么会这样吗?为什么卷曲响应会有所不同?

这是来自 Firebase 的 json

[
  {
    "job": {
      "city": "Toronto",
      "job_id": 1,
      "owner_id_map": 1,
      "status": 0,
      "title": "500 Posters in Toronto"
    },
    "posters": [
      {
        "poster": {
          "job_id_map": 2,
          "latitude": 43.64526533333377,
          "locationDescription": "Union Station",
          "longitude": -79.38060468539248,
          "poster_id": 1,
          "qr_code": "code2",
          "worker_id": 1
        },
        "worker": [
          {
            "workerName": "Noris",
            "worker_id": 1
          }
        ]
      },
      {
        "poster": {
          "job_id_map": 2,
          "latitude": 43.64295669900133,
          "locationDescription": "Queen and Spadina",
          "longitude": -79.39368099382459,
          "poster_id": 2,
          "qr_code": "code3",
          "worker_id": 2
        },
        "worker": [
          {
            "workerName": "Jack",
            "worker_id": 2
          }
        ]
      },
      {
        "poster": {
          "job_id_map": 3,
          "latitude": 43.76892443268843,
          "locationDescription": "North York Civic Center",
          "longitude": -79.41292484238735,
          "poster_id": 3,
          "qr_code": "code4",
          "worker_id": 3
        },
        "worker": [
          {
            "workerName": "Nicky",
            "worker_id": 3
          }
        ]
      }
    ],
    "workers": [
      {
        "workerName": "Noris",
        "worker_id": 1
      },
      {
        "workerName": "Jack",
        "worker_id": 2
      },
      {
        "workerName": "Nicky",
        "worker_id": 3
      },
      {
        "workerName": "Davis",
        "worker_id": 4
      },
      {
        "workerName": "Argyle",
        "worker_id": 5
      },
      {
        "workerName": "James",
        "worker_id": 6
      }
    ]
  },
  {
    "job": {
      "city": "Montreal",
      "job_id": 2,
      "owner_id_map": 1,
      "status": 1,
      "title": "20 Posters in Montreal"
    },
    "workers": [
      {
        "workerName": "Noris",
        "worker_id": 1
      },
      {
        "workerName": "Jack",
        "worker_id": 2
      },
      {
        "workerName": "Nicky",
        "worker_id": 3
      },
      {
        "workerName": "Davis",
        "worker_id": 4
      },
      {
        "workerName": "Argyle",
        "worker_id": 5
      },
      {
        "workerName": "James",
        "worker_id": 6
      }
    ]
  },
  {
    "job": {
      "city": "Ottawa",
      "job_id": 3,
      "owner_id_map": 2,
      "status": 2,
      "title": "350 Posters in Ottawa"
    },
    "posters": [
      {
        "poster": {
          "job_id_map": 4,
          "latitude": 43.63904362027761,
          "locationDescription": "Harbourfront",
          "longitude": -79.38193214610098,
          "poster_id": 4,
          "qr_code": "code5",
          "worker_id": 0
        }
      },
      {
        "poster": {
          "job_id_map": 5,
          "latitude": 43.68347235901327,
          "locationDescription": "Bathurst and St Clair",
          "longitude": -79.41851002097324,
          "poster_id": 5,
          "qr_code": "code6",
          "worker_id": 0
        }
      },
      {
        "poster": {
          "job_id_map": 2,
          "latitude": 43.6958481647278,
          "locationDescription": "Dufferin and Eglinton",
          "longitude": -79.45035794609939,
          "poster_id": 6,
          "qr_code": "code7",
          "worker_id": 0
        }
      }
    ],
    "workers": [
      {
        "workerName": "Noris",
        "worker_id": 1
      },
      {
        "workerName": "Jack",
        "worker_id": 2
      },
      {
        "workerName": "Nicky",
        "worker_id": 3
      },
      {
        "workerName": "Davis",
        "worker_id": 4
      },
      {
        "workerName": "Argyle",
        "worker_id": 5
      },
      {
        "workerName": "James",
        "worker_id": 6
      }
    ]
  },
  {
    "job": {
      "city": "Calgary",
      "job_id": 4,
      "owner_id_map": 2,
      "status": 0,
      "title": "10 Posters in Calgary"
    },
    "posters": [
      {
        "poster": {
          "job_id_map": 2,
          "latitude": 43.64526533333377,
          "locationDescription": "Union Station",
          "longitude": -79.38060468539248,
          "poster_id": 1,
          "qr_code": "code2",
          "worker_id": 1
        },
        "worker": [
          {
            "workerName": "Noris",
            "worker_id": 1
          }
        ]
      },
      {
        "poster": {
          "job_id_map": 2,
          "latitude": 43.64295669900133,
          "locationDescription": "Queen and Spadina",
          "longitude": -79.39368099382459,
          "poster_id": 2,
          "qr_code": "code3",
          "worker_id": 2
        },
        "worker": [
          {
            "workerName": "Jack",
            "worker_id": 2
          }
        ]
      },
      {
        "poster": {
          "job_id_map": 3,
          "latitude": 43.76892443268843,
          "locationDescription": "North York Civic Center",
          "longitude": -79.41292484238735,
          "poster_id": 3,
          "qr_code": "code4",
          "worker_id": 3
        },
        "worker": [
          {
            "workerName": "Nicky",
            "worker_id": 3
          }
        ]
      }
    ],
    "workers": [
      {
        "workerName": "Noris",
        "worker_id": 1
      },
      {
        "workerName": "Jack",
        "worker_id": 2
      },
      {
        "workerName": "Nicky",
        "worker_id": 3
      },
      {
        "workerName": "Davis",
        "worker_id": 4
      },
      {
        "workerName": "Argyle",
        "worker_id": 5
      },
      {
        "workerName": "James",
        "worker_id": 6
      }
    ]
  }
]

这是我的 Retrofit API 调用

 @GET("/jobs.json")
   suspend fun getJobsList() : Response<List<JobPW>>

我假设嵌套对象存在问题,但我不知道如何调试它。

这是我的模型;这也是房间对象

data class JobPW(
    @Embedded val job: Job,
    @Relation(
        parentColumn = "job_id",
        entityColumn = "worker_id",
        associateBy = Junction(JobWorkerCrossRef::class)
    )
    val workers: List<Worker>,

    @Relation(
        entity = Poster::class,
        parentColumn = "job_id",
        entityColumn = "job_id_map"
    )
    val posters: List<PosterWithWorker>
) : Serializable
data class PosterWithWorker(
    @Embedded val poster: Poster,
    @Relation(
        parentColumn = "worker_id",
        entityColumn = "worker_id",
        associateBy = Junction(
            value = PosterWorkerCrossRef::class,
            parentColumn = "poster_id_map",
            entityColumn = "worker_id_map"
        )
    )
    val worker:  List<Worker>
) : Serializa
package com.davidozersky.posterpal.database.entities

import androidx.room.ColumnInfo
import androidx.room.Entity
import androidx.room.ForeignKey
import androidx.room.PrimaryKey
import java.io.Serializable

@Entity(
    foreignKeys = [

        ForeignKey(
            entity = Owner::class,
            parentColumns = ["owner_id"],
            childColumns = ["owner_id_map"],
            onDelete = ForeignKey.CASCADE,
            onUpdate = ForeignKey.CASCADE
        )
    ]
)
data class Job (

    @PrimaryKey val job_id: Long,
    val status: Int,
    @ColumnInfo(index = true)
    val owner_id_map: Long,
    val title: String,
    val city: String
) : Serializable
package com.davidozersky.posterpal.database.entities

import androidx.room.ColumnInfo
import androidx.room.Entity
import androidx.room.PrimaryKey
import java.io.Serializable

@Entity
class Worker(
    @PrimaryKey
    @ColumnInfo(name = "worker_id")
    val worker_id: Long,
    val workerName: String,
) : Serializable

海报

package com.davidozersky.posterpal.database.entities

import androidx.room.*

@Entity(
    foreignKeys = [
        ForeignKey(
            entity = Job::class,
            parentColumns = ["job_id"],
            childColumns = ["job_id_map"],
            onDelete = ForeignKey.CASCADE,
            onUpdate = ForeignKey.CASCADE
        )
    ]
)
data class Poster (
    @PrimaryKey val poster_id: Long,
    @ColumnInfo(index = true)
    val job_id_map: Long,
    val qr_code: String,
    val worker_id: Long,
    val latitude: Double,
    val longitude: Double,
    val locationDescription: String,
    )

我尝试将 OkHttp 直接与 HttpLogger 一起使用,调用以 200 响应,并注销相同的 json

[{"job":{"city":"Toronto","job_id":1,"owner_id_map":1,"status":0,"title":"500 Posters in Toronto"},"posters":[{"poster":{"job_id_map":2,"latitude":43.64526533333377,"locationDescription":"Union Station","longitude":-79.38060468539248,"poster_id":1,"qr_code":"code2","worker_id":1},"worker":[{"workerName":"Noris","worker_id":1}]},{"poster":{"job_id_map":2,"latitude":43.64295669900133,"locationDescription":"Queen and Spadina","longitude":-79.39368099382459,"poster_id":2,"qr_code":"code3","worker_id":2},"worker":[{"workerName":"Jack","worker_id":2}]},{"poster":{"job_id_map":3,"latitude":43.76892443268843,"locationDescription":"North York Civic Center","longitude":-79.41292484238735,"poster_id":3,"qr_code":"code4","worker_id":3},"worker":[{"workerName":"Nicky","worker_id":3}]}],"workers":[{"workerName":"Noris","worker_id":1},{"workerName":"Jack","worker_id":2},{"workerName":"Nicky","worker_id":3},{"workerName":"Davis","worker_id":4},{"workerName":"Argyle","worker_id":5},{"workerName":"James","worker_id":6}]},{"job":{"city":"Montreal","job_id":2,"owner_id_map":1,"status":1,"title":"20 Posters in Montreal"},"workers":[{"workerName":"Noris","worker_id":1},{"workerName":"Jack","worker_id":2},{"workerName":"Nicky","worker_id":3},{"workerName":"Davis","worker_id":4},{"workerName":"Argyle","worker_id":5},{"workerName":"James","worker_id":6}]},{"job":{"city":"Ottawa","job_id":3,"owner_id_map":2,"status":2,"title":"350 Posters in Ottawa"},"posters":[{"poster":{"job_id_map":4,"latitude":43.63904362027761,"locationDescription":"Harbourfront","longitude":-79.38193214610098,"poster_id":4,"qr_code":"code5","worker_id":0}},{"poster":{"job_id_map":5,"latitude":43.68347235901327,"locationDescription":"Bathurst and St Clair","longitude":-79.41851002097324,"poster_id":5,"qr_code":"code6","worker_id":0}},{"poster":{"job_id_map":2,"latitude":43.6958481647278,"locationDescription":"Dufferin and Eglinton","longitude":-79.45035794609939,"poster_id":6,"qr_code":"code7","worker_id":0}}],"workers":[{"workerName":"Noris","worker_id":1},{"workerName":"Jack","worker_id":2},{"workerName":"Nicky","worker_id":3},{"workerName":"Davis","worker_id":4},{"workerName":"Argyle","worker_id":5},{"workerName":"James","worker_id":6}]},{"job":{"city":"Calgary","job_id":4,"owner_id_map":2,"status":0,"title":"10 Posters in Calgary"},"posters":[{"poster":{"job_id_map":2,"latitude":43.64526533333377,"locationDescription":"Union Station","longitude":-79.38060468539248,"poster_id":1,"qr_code":"code2","worker_id":1},"worker":[{"workerName":"Noris","worker_id":1}]},{"poster":{"job_id_map":2,"latitude":43.64295669900133,"locationDescription":"Queen and Spadina","longitude":-79.39368099382459,"poster_id":2,"qr_code":"code3","worker_id":2},"worker":[{"workerName":"Jack","worker_id":2}]},{"poster":{"job_id_map":3,"latitude":43.76892443268843,"locationDescription":"North York Civic Center","longitude":-79.41292484238735,"poster_id":3,"qr_code":"code4","worker_id":3},"worker":[{"workerName":"Nicky","worker_id":3}]}],"workers":[{"workerName":"Noris","worker_id":1},{"workerName":"Jack","worker_id":2},{"workerName":"Nicky","worker_id":3},{"workerName":"Davis","worker_id":4},{"workerName":"Argyle","worker_id":5},{"workerName":"James","worker_id":6}]}]
android gson retrofit retrofit2 android-room
1个回答
0
投票
@GET("/jobs.json")
suspend fun getJobsList() : Response<List<JobPW>>

为什么你用

Response
类来包装你的列表?也许你的
Response
班级和
retrofit.Response
班级不一样。在这种情况下检查您的导入。

其次,检查您添加到 OkHttp 的拦截器,看看您是否没有破坏响应。

如果它们对您不起作用,请告诉您如何从 Retrofit 获取 JsonObject 并显示该代码。

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