C#之Json，从Json字符串到类代码

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using Microsoft.JScript;
  6 
  7 namespace Common
  8 {
  9     /// <summary>
 10     /// Json字符串zhuanh
 11     /// </summary>
 12     public class JsonHelper : IHelper
 13     {
 14         /// <summary>
 15         /// 是否添加get set
 16         /// </summary>
 17         private bool isAddGetSet = false;
 18 
 19         /// <summary>
 20         /// 数据集合，临时
 21         /// </summary>
 22         private List<AutoClass> dataList = new List<AutoClass>();
 23 
 24         public JsonHelper()
 25         {
 26         }
 27 
 28         public JsonHelper(bool isAddGetSet)
 29         {
 30             this.isAddGetSet = isAddGetSet;
 31         }
 32 
 33         /// <summary>
 34         /// 获取类的字符串形式
 35         /// </summary>
 36         /// <param name="jsonStr"></param>
 37         /// <returns></returns>
 38         public string GetClassString(string jsonStr)
 39         {
 40             Microsoft.JScript.Vsa.VsaEngine ve = Microsoft.JScript.Vsa.VsaEngine.CreateEngine();
 41             var m = Microsoft.JScript.Eval.JScriptEvaluate("(" + jsonStr + ")", ve);
 42 
 43             int index = 0;
 44             var result = GetDicType((JSObject)m, ref index);
 45 
 46             StringBuilder content = new StringBuilder();
 47             foreach (var item in dataList)
 48             {
 49                 content.AppendFormat("\tpublic class {0}\r\n", item.CLassName);
 50                 content.AppendLine("\t{");
 51                 foreach (var model in item.Dic)
 52                 {
 53                     if (isAddGetSet)
 54                     {
 55                         content.AppendFormat("\t\tpublic {0} {1}", model.Value, model.Key);
 56                         content.Append(" { get; set; }\r\n");
 57                     }
 58                     else
 59                     {
 60                         content.AppendFormat("\t\tpublic {0} {1};\r\n", model.Value, model.Key);
 61                     }
 62 
 63                     content.AppendLine();
 64                 }
 65 
 66                 content.AppendLine("\t}");
 67                 content.AppendLine();
 68             }
 69 
 70             return content.ToString();
 71         }
 72 
 73         /// <summary>
 74         /// 获取类型的字符串表示
 75         /// </summary>
 76         /// <param name="type"></param>
 77         /// <returns></returns>
 78         private string GetTypeString(Type type)
 79         {
 80             if (type == typeof(int))
 81             {
 82                 return "int";
 83             }
 84             else if (type == typeof(bool))
 85             {
 86                 return "bool";
 87             }
 88             else if (type == typeof(Int64))
 89             {
 90                 return "long";
 91             }
 92             else if (type == typeof(string))
 93             {
 94                 return "string";
 95             }
 96             else if (type == typeof(List<string>))
 97             {
 98                 return "List<string>";
 99             }
100             else if (type == typeof(List<int>))
101             {
102                 return "List<int>";
103             }
104             else
105             {
106                 return "string";
107             }
108         }
109 
110         /// <summary>
111         /// 获取字典类型
112         /// </summary>
113         /// <returns></returns>
114         private string GetDicType(JSObject jsObj, ref int index)
115         {
116             AutoClass classInfo = new AutoClass();
117 
118             var model = ((Microsoft.JScript.JSObject)(jsObj)).GetMembers(System.Reflection.BindingFlags.GetField);
119             foreach (Microsoft.JScript.JSField item in model)
120             {
121                 string name = item.Name;
122                 Type type = item.GetValue(item).GetType();
123                 if (type == typeof(ArrayObject))
124                 {
125                     // 集合
126                     string typeName = GetDicListType((ArrayObject)item.GetValue(item), ref index);
127                     if (!string.IsNullOrEmpty(typeName))
128                     {
129                         classInfo.Dic.Add(name, typeName);
130                     }
131                 }
132                 else if (type == typeof(JSObject))
133                 {
134                     // 单个对象
135                     string typeName = GetDicType((JSObject)item.GetValue(item), ref index);
136                     if (!string.IsNullOrEmpty(typeName))
137                     {
138                         classInfo.Dic.Add(name, typeName);
139                     }
140                 }
141                 else
142                 {
143                     classInfo.Dic.Add(name, GetTypeString(type));
144                 }
145             }
146 
147             index++;
148             classInfo.CLassName = "Class" + index;
149             dataList.Add(classInfo);
150             return classInfo.CLassName;
151         }
152 
153         /// <summary>
154         /// 读取集合类型
155         /// </summary>
156         /// <param name="jsArray"></param>
157         /// <param name="index"></param>
158         /// <returns></returns>
159         private string GetDicListType(ArrayObject jsArray, ref int index)
160         {
161             string name = string.Empty;
162             if ((int)jsArray.length > 0)
163             {
164                 var item = jsArray[0];
165                 var type = item.GetType();
166                 if (type == typeof(JSObject))
167                 {
168                     name = "List<" + GetDicType((JSObject)item, ref index) + ">";
169                 }
170                 else
171                 {
172                     name = "List<" + GetTypeString(type) + ">";
173                 }
174             }
175 
176             return name;
177         }
178     }
179 
180     public class AutoClass
181     {
182         public string CLassName { get; set; }
183 
184         private Dictionary<string, string> dic = new Dictionary<string, string>();
185 
186         public Dictionary<string, string> Dic
187         {
188             get
189             {
190                 return this.dic;
191             }
192             set
193             {
194                 this.dic = value;
195             }
196         }
197     }
198 }