C# 解析嵌套的json文件.

1 {"votes": {"funny": 0, "useful": 7, "cool": 0}, "user_id": "CR2y7yEm4X035ZMzrTtN9Q", "name": "Jim", "average_stars": 5.0, "review_count": 6, "type": "user"}
2 {"votes": {"funny": 0, "useful": 1, "cool": 0}, "user_id": "_9GXoHhdxc30ujPaQwh6Ew", "name": "Kelle", "average_stars": 1.0, "review_count": 2, "type": "user"}
3 {"votes": {"funny": 0, "useful": 1, "cool": 0}, "user_id": "8mM-nqxjg6pT04kwcjMbsw", "name": "Stephanie", "average_stars": 5.0, "review_count": 2, "type": "user"}
4 {"votes": {"funny": 0, "useful": 2, "cool": 0}, "user_id": "Ch6CdTR2IVaVANr-RglMOg", "name": "T", "average_stars": 5.0, "review_count": 2, "type": "user"}
5 {"votes": {"funny": 0, "useful": 0, "cool": 0}, "user_id": "NZrLmHRyiHmyT1JrfzkCOA", "name": "Beth", "average_stars": 1.0, "review_count": 1, "type": "user"}
6 {"votes": {"funny": 30, "useful": 45, "cool": 36}, "user_id": "mWx5Sxt_dx-sYBZg6RgJHQ", "name": "Amy", "average_stars": 3.79, "review_count": 19, "type": "user"}
7 {"votes": {"funny": 28, "useful": 130, "cool": 31}, "user_id": "hryUDaRk7FLuDAYui2oldw", "name": "Beach", "average_stars": 3.8300000000000001, "review_count": 207, "type": "user"}
8 {"votes": {"funny": 1, "useful": 0, "cool": 1}, "user_id": "2t6fZNLtiqsihVmeO7zggg", "name": "christine", "average_stars": 3.0, "review_count": 2, "type": "user"}
9 {"votes": {"funny": 0, "useful": 3, "cool": 2}, "user_id": "mn6F-eP5WU37b-iLTop2mQ", "name": "Denis", "average_stars": 4.5, "review_count": 4, "type": "user"}

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 
  6 using Json_User;
  7 
  8 namespace Json_User {
  9     //对应json每行.
 10     public class User {
 11         public Votes votes { get; private set; }
 12 
 13         public string user_id { get; private set; }
 14 
 15         public string name { get; private set; }
 16 
 17         public double average_stars { get; private set; }
 18 
 19         public int review_count { get; private set; }
 20 
 21         public string type { get; private set; }
 22 
 23         public User(Votes votes, string user_id, string name, double average_stars, int review_count, string type) {
 24             this.votes = votes;
 25             this.user_id = user_id;
 26             this.name = name;
 27             this.average_stars = average_stars;
 28             this.review_count = review_count;
 29             this.type = type;
 30         }
 31     }
 32 
 33     public class Votes {
 34         public int funny { get; private set; }
 35 
 36         public int useful { get; private set; }
 37 
 38         public int cool { get; private set; }
 39 
 40         public Votes(int funny, int useful, int cool) {
 41             this.funny = funny;
 42             this.useful = useful;
 43             this.cool = cool;
 44         }
 45     }
 46 
 47     //处理类.
 48     static class UserManager {
 49         /// <summary>
 50         /// 解析嵌套的json.如:"{"votes": {"funny": 0, "useful": 7, "cool": 0}, "user_id": "CR2y7yEm4X035ZMzrTtN9Q", "name": "Jim", "average_stars": 5.0, "review_count": 6, "type": "user"}"
 51         /// </summary>
 52         /// <param name="lines">没行代表一个User</param>
 53         /// <returns></returns>
 54         public static List<User> ParseJSONString(string[] lines) {
 55             System.Web.Script.Serialization.JavaScriptSerializer ser = new System.Web.Script.Serialization.JavaScriptSerializer();
 56             Dictionary<string, object> userDic = null;
 57 
 58             List<User> users = new List<User>(lines.Length);
 59             User u = null;
 60             Votes v = null;
 61 
 62             //为成员变量赋值.
 63             int funny;
 64             int useful;
 65             int cool;
 66             string user_id;
 67             string name;
 68             double average_stars;
 69             int review_count;
 70             string type;
 71             foreach (string item in lines) {
 72                 //User.
 73                 userDic = ser.Deserialize<Dictionary<string, object>>(item);
 74 
 75                 //User中的votes成员变量.
 76                 Dictionary<string, object> votesDic = (Dictionary<string, object>)userDic["votes"];
 77 
 78                 funny = int.Parse(votesDic["funny"].ToString());
 79                 useful = int.Parse(votesDic["useful"].ToString());
 80                 cool = int.Parse(votesDic["cool"].ToString());
 81                 v = new Votes(funny, useful, cool);
 82 
 83                 user_id = userDic["user_id"].ToString();
 84                 name = userDic["name"].ToString();
 85                 average_stars = double.Parse(userDic["average_stars"].ToString());
 86                 review_count = int.Parse(userDic["review_count"].ToString());
 87                 type = userDic["type"].ToString();
 88 
 89                 u = new User(v, user_id, name, average_stars, review_count, type);
 90                 users.Add(u);
 91             }
 92             return users;
 93         }
 94 
 95         // remove "this" if not on C# 3.0 / .NET 3.5
 96         public static System.Data.DataTable ConvertToDatatable<T>(this IList<T> data) {
 97             System.ComponentModel.PropertyDescriptorCollection props =
 98                 System.ComponentModel.TypeDescriptor.GetProperties(typeof(T));
 99             System.Data.DataTable table = new System.Data.DataTable();
100             for (int i = 0; i < props.Count; i++) {
101                 System.ComponentModel.PropertyDescriptor prop = props[i];
102                 table.Columns.Add(prop.Name, prop.PropertyType);
103             }
104             object[] values = new object[props.Count];
105             foreach (T item in data) {
106                 for (int i = 0; i < values.Length; i++) {
107                     values[i] = props[i].GetValue(item);
108                 }
109                 table.Rows.Add(values);
110             }
111             return table;
112         }
113     }
114 }