Question

我正在尝试解析包含java中重复键的Json文件。我正在使用此答案Parsing a json which contains duplicate keys中建议的方法。如果我对Json进行硬编码，但是如果我从文件中读取它，那么该方法可以正常工作，只读取最后一个重复的密钥。请帮助，因为我想从文件中读取Json。提前谢谢。代码：

import requests
import bs4.BeautifulSoup as bs
url="https://www.tennisexpress.com/mens-adidas-tennis-shoes"
req = requests.get(url)
soup = bs(req.text,'lxml') # lxml because page is more xml than html
arts = soup.findAll("a",class_="product")

Json文件：

public class am {
    public static  void main(String args[]) throws Exception
    {
        JSONParser parser = new JSONParser();


        Object obj = parser.parse(new FileReader("sample.json"));

        JSONObject a=JSONObject.fromObject(obj);
        JSONObject jsonObject=JSONObject.fromObject("{\n" +
                "  \"Data\": {\n" +
                "    \"A\": {\n" +
                "      \"B\": {\n" +
                "        \"C\": \"c\",\n" +
                "        \"D\": {}\n" +
                "      },\n" +
                "      \"E\": {\n" +
                "        \"F\": \"f\"\n" +
                "      },\n" +
                "      \"G\": {\n" +
                "        \"H\": \"h\"\n" +
                "      }\n" +
                "    },\"A\": {\n" +
                "      \"B\": {\n" +
                "        \"C\": \"x\",\n" +
                "        \"D\": {}\n" +
                "      },\n" +
                "      \"E\": {\n" +
                "        \"F\": \"y\"\n" +
                "      },\n" +
                "      \"G\": {\n" +
                "        \"H\": \"z\"\n" +
                "      }\n" +
                "    },\n" +
                "    
                "\n" +
                "  }\n" +
                "}");
        System.out.println("Json objects are:::"+a);
        System.out.println("Json objects are:::"+jsonObject);

    }
}

输出：

{
  "Data": {
    "A": {
      "B": {
        "C": "c",
        "D": {}
      },
      "E": {
        "F": "f"
      },
      "G": {
        "H": "h"
      }
    },"A": {
      "B": {
        "C": "x",
        "D": {}
      },
      "E": {
        "F": "y"
      },
      "G": {
        "H": "z"
      }
    },

  }
}

Answer 1

如果您没有使用外部JSON库的约束，那么可以使用net.sf.json.JSONObject来解析您的JSON字符串，它将接受带有重复键的JSON。它将通过将重复值存储到数组中来保留重复值。

JSONObject jsonObject = JSONObject.fromObject( "{\"Data\": {\"A\": {\"B\": {\"C\": \"c\",\"D\": {}},\"E\": {\"F\": \"f\"},\"G\": {\"H\": \"h\"}},\"A\": {\"B\": {\"C\": \"x\",\"D\": {}},\"E\": {\"F\": \"y\"},\"G\": {\"H\": \"z\"}}}}" );
System.out.println( "net.sf.json.JSONObject: " + jsonObject );

Answer 2

您需要对JSON对象进行字符串化

a.toString()

用重复的密钥解析json

2 个答案: