使用org.json解析JSON

Question

我正在尝试解析服务器的输出,如下所示:

{
  "GetFolderFilesByZoneResult": [
    {
      "ID": 98748,
      "CreatedBy": "",
      "UpdatedBy": "none",
      "CreatedDate": "\/Date(1308273033620+0100)\/",
      "UpdatedDate": "\/Date(1308303003770+0100)\/",  
      "CommentCount": 0,
      "Key": "",
      "Enabled": true,
      "MimeType": "video",
      "Votes": 2,
      "TotalRating": 0,
      "AllowComments": true,
      "ViewCount": 323,
      "ReleaseDate": "\/Date(1308273000000+0100)\/",
      "ExpireDate": "\/Date(4102444800000+0000)\/",
      "Author": "",
      "Size": 133799936,
      "Tag1": "",
      "Tag2": "",
      "Tag3": "",
      "RecycleBin": false
    },
    {
      "ID": 99107,
      "CreatedBy": "",
      "UpdatedBy": "none",
      "CreatedDate": "\/Date(1308583412520+0100)\/",
      "UpdatedDate": "\/Date(1308583564007+0100)\/",     
      "CommentCount": 0,
      "Key": "",
      "Enabled": true,
      "MimeType": "video",
      "Votes": 0,
      "TotalRating": 0,
      "AllowComments": true,
      "ViewCount": 33,
      "ReleaseDate": "\/Date(1308583380000+0100)\/",
      "ExpireDate": "\/Date(4102444800000+0000)\/",
      "Author": "",
      "Size": 47955968,
      "Tag1": "",
      "Tag2": "",
      "Tag3": "",
      "RecycleBin": false
    }
  ]
}

我正在尝试使用Java org.json来解析它,但我对JSON/org.json没有任何经验,所以我遇到了一些麻烦.我怎么解析这个？

Answer 1

1)假设你的路径上有JSON库(来自www.json.org),这很简单.

import org.json.JSONTokener;
...

URI uri = new URI("http://someserver/data.json");
JSONTokener tokener = new JSONTokener(uri.toURL().openStream());
JSONObject root = new JSONObject(tokener);

从那里,您可以处理JSON对象的各个部分.看看Javadocs的具体细节. https://developer.android.com/reference/org/json/package-summary.html

Answer 2

这是最通用的解决方案,它允许将任何JSON类型解析为适当的Java类型:

Object json = new JSONTokener(response).nextValue();

然后,您可以确定结果类型并适当地处理它.