java - Json比较异常: Can't access getJSONArray in java

Question

这个问题已经有答案了:

Importing JSON into an Eclipse project (7 个回答)

已关闭 5 年前。

 JSON1:
 {
   "array1": [
    {
      "id": "1",
      "Name": "Xytrex Co.",
      "Description": "Industrial Cleaning Supply Company",
      "Account Number": "ABC15797531",
      "Address": {
       "Permanent": {
       "Street": "st.road",
       "pin": "789723"
       },
        "Temporary": {
         "Street": "st.road",
         "pin": "789723"
       }
     }
   },

{
  "id": "2",
  "Name": "Xytrex Co.",
  "Description": "Industrial Cleaning Supply Company",
  "Account Number": "ABC15797531",
  "Address": {
    "Permanent": {
      "Street": "st.road",
      "pin": "789723"
    },
    "Temporary": {
      "pin": "789723"
    }
  }
}
 ]
 }

JSON2:

     {
   "array2": [
     {
      "id": "1",
      "Name": "Xytrex Co.",
      "Description": "Industrial Cleaning Supply Company",
      "Account Number": "ABC15797531",
      "Address": {
        "Permanent": {
          "Street": "st.road",
          "pin": "789723"
        },
        "Temporary": {
          "Street": "st.road",
          "pin": "789723"
        }
      }
   },

  {
     "id": "2",
     "Name": "Xytrex Co.",
    "Description": "Industrial Cleaning Supply Company",
    "Account Number": "ABC15797531",
        "Address": {
        "Permanent": {
        "Street": "st.road",
        "pin": "789723"
       },
       "Temporary": {
        "Street": "st.road",
        "pin": "789723"
       }
     }
   }
 ]
 }

我使用的代码:

package com.company;

import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import org.skyscreamer.jsonassert.JSONAssert;
import org.skyscreamer.jsonassert.JSONCompareMode;
import com.google.gson.JsonParser;
import org.skyscreamer.jsonassert.JSONCompareMode;

import java.io.FileNotFoundException;
import java.io.FileReader;


public class Main {

public static void main(String[] args) throws FileNotFoundException {

    Main cmp = new Main();
    cmp.myTest();
}

public void myTest() throws FileNotFoundException {

     JsonParser Parser = new JsonParser();
     JsonObject obj1 = (JsonObject) Parser.parse(new 
 FileReader("/home/cloudera/Desktop/SampleJson/src/JSON1.json"));
    JsonArray array1 = obj1.getAsJsonArray("array1");
    JsonObject obj2 = (JsonObject)Parser.parse(new 
 FileReader("/home/cloudera/Desktop/SampleJson/src/JSON2.json"));
    JsonArray array2 = obj1.getAsJsonArray("array2");
    JSONAssert.assertEquals(array1, array2, JSONCompareMode.STRICT);
 }
}

我期待的结果是那个键 Street JSON1 中缺失下"id":"2"或类似的东西可以提供正确的信息，帮助我们识别缺少的 key 来执行 Junit测试。

我在IDE中遇到的错误是

"java: cannot access org.json.JSONArray
  class file for org.json.JSONArray not found". 

请帮我解决这个问题。

Answer 1

我认为您对 JSONArray 对象类的初始化在这些行中似乎不正确。

jsonArray array1 = obj1.getAsJsonArray("array1");  // it may pron to the exception.
jsonArray array1 = obj1.getAsJsonArray("array1");

您尚未在方法 getAsJsonArray() 中传递正确的参数。您传递了硬编码值 "array1" 和 "array2"，这不是转换为 JSONArray 的正确值。

看看here to help more