/// <summary>
/// 用于构建属性值的回调
/// </summary>
/// <param name="property"></param>
public delegate void SetPropertiesDelegate(JsonObject property);
/// <summary>
/// JsonObject属性值类型
/// </summary>
public enum JsonPropertyType
{
String,
Object,
Array,
Number,
Bool,
Null
}
/// <summary>
/// JSON通用对象
/// </summary>
public class JsonObject
{
private Dictionary<String, JsonProperty> mProperty;
/// <summary>
/// 创建一个JSON对象
/// </summary>
public JsonObject()
{
this.mProperty = null;
}
/// <summary>
/// 通过字符串构造一个JSON对象
/// </summary>
/// <param name="jsonString"></param>
public JsonObject(String jsonString)
{
this.Parse(ref jsonString);
}
/// <summary>
/// 通过回调函数构造一个JSON对象
/// </summary>
/// <param name="callback"></param>
public JsonObject(SetPropertiesDelegate callback)
{
if (callback != null)
{
callback(this);
}
}
/// <summary>
/// Json字符串解析
/// </summary>
/// <param name="jsonString"></param>
private void Parse(ref String jsonString)
{
int len = jsonString.Length;
if (String.IsNullOrEmpty(jsonString) || jsonString.Substring(0, 1) != "{" || jsonString.Substring(jsonString.Length - 1, 1) != "}")
{
throw new ArgumentException("传入文本不符合Json格式!" + jsonString);
}
Stack<Char> stack = new Stack<char>();
Stack<Char> stackType = new Stack<char>();
Stack<char> stackStrValue = new Stack<char>(); //Value中的特殊字符需要保留
StringBuilder sb = new StringBuilder();
Char cur;
bool isValue = false;
JsonProperty last = null;
for (int i = 1; i <= len - 2; i++)
{
cur = jsonString[i];
if (cur == '}')
{
;
}
if (cur == ' ' && stack.Count == 0 && stackStrValue.Count == 0)
{
;
}
else if ((cur == '\'' || cur == '\"') && stack.Count == 0 && !isValue)
{
sb.Length = 0;
stack.Push(cur);
}
else if ((cur == '\'' || cur == '\"') && stack.Count > 0 && stack.Peek() == cur && !isValue)
{
stack.Pop();
}
else if ((cur == '\'' || cur == '\"') && isValue && stackStrValue.Count == 0)
{
sb.Append(cur);
stackStrValue.Push(cur);
}
else if ((cur == '\'' || cur == '\"') && isValue && stackStrValue.Count > 0 && stackStrValue.Peek() == cur)
{
sb.Append(cur);
stackStrValue.Pop();
}
else if ((cur == '[' || cur == '{') && stack.Count == 0)
{
stackType.Push(cur == '[' ? ']' : '}');
sb.Append(cur);
}
else if ((cur == ']' || cur == '}') && stack.Count == 0 && stackType.Peek() == cur)
{
stackType.Pop();
sb.Append(cur);
}
else if (cur == ':' && stack.Count == 0 && stackType.Count == 0 && !isValue)
{
last = new JsonProperty();
this[sb.ToString()] = last;
isValue = true;
sb.Length = 0;
}
else if (cur == ',' && stack.Count == 0 && stackType.Count == 0 && stackStrValue.Count == 0)
{
if (last != null)
{
String temp = sb.ToString();
last.Parse(ref temp);
}
isValue = false;
sb.Length = 0;
}
else
{
sb.Append(cur);
}
}
if (sb.Length > 0 && last != null && last.Type == JsonPropertyType.Null)
{
String temp = sb.ToString();
last.Parse(ref temp);
}
}
/// <summary>
/// 获取指定名称的属性
/// </summary>
/// <param name="propertyName"></param>
/// <returns></returns>
public JsonProperty this[String propertyName]
{
get
{
JsonProperty result = null;
if (this.mProperty != null && this.mProperty.ContainsKey(propertyName))
{
result = this.mProperty[propertyName];
}
return result;
}
set
{
if (this.mProperty == null)
{
this.mProperty = new Dictionary<string, JsonProperty>(StringComparer.OrdinalIgnoreCase);
}
if (this.mProperty.ContainsKey(propertyName))
{
this.mProperty[propertyName] = value;
}
else
{
this.mProperty.Add(propertyName, value);
}
}
}
/// <summary>
/// 通过此泛型函数可直接获取指定类型属性的值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="propertyName"></param>
/// <returns></returns>
public virtual T Properties<T>(String propertyName) where T : class
{
JsonProperty p = this[propertyName];
if (p != null)
{
return p.GetValue<T>();
}
return default(T);
}
/// <summary>
/// 获取属性名称列表
/// </summary>
/// <returns></returns>
public String[] GetPropertyNames()
{
if (this.mProperty == null)
return null;
String[] keys = null;
if (this.mProperty.Count > 0)
{
keys = new String[this.mProperty.Count];
this.mProperty.Keys.CopyTo(keys, 0);
}
return keys;
}
/// <summary>
/// 移除一个属性
/// </summary>
/// <param name="propertyName"></param>
/// <returns></returns>
public JsonProperty RemoveProperty(String propertyName)
{
if (this.mProperty != null && this.mProperty.ContainsKey(propertyName))
{
JsonProperty p = this.mProperty[propertyName];
this.mProperty.Remove(propertyName);
return p;
}
return null;
}
/// <summary>
/// 是否为空对象
/// </summary>
/// <returns></returns>
public bool IsNull()
{
return this.mProperty == null;
}
/// <summary>
/// 转换成字符串
/// </summary>
/// <returns></returns>
public override string ToString()
{
return this.ToString("");
}
/// <summary>
/// 指定格式表达式，转换成字符串
/// </summary>
/// <param name="format">格式化字符串</param>
/// <returns></returns>
public virtual string ToString(String format)
{
if (this.IsNull())
{
return "{}";
}
StringBuilder sb = new StringBuilder();
foreach (String key in this.mProperty.Keys)
{
sb.Append(",");
//sb.Append(key).Append(": ");
sb.Append("\"" + key + "\"").Append(":");
sb.Append(this.mProperty[key].ToString(format));
}
if (this.mProperty.Count > 0)
{
sb.Remove(0, 1);
}
sb.Insert(0, "{");
sb.Append("}");
return sb.ToString();
}
}
/// <summary>
/// JSON对象属性
/// </summary>
public class JsonProperty
{
private JsonPropertyType mType;
private String mValue;
private JsonObject mObject;
private List<JsonProperty> mList;
private bool mBool;
private double mNumber;
/// <summary>
/// 创建一个空的JSON对象属性
/// </summary>
public JsonProperty()
{
this.mType = JsonPropertyType.Null;
this.mValue = null;
this.mObject = null;
this.mList = null;
}
/// <summary>
/// 创建一个JSON对象属性
/// </summary>
/// <param name="value"></param>
public JsonProperty(Object value)
{
this.SetValue(value);
}
/// <summary>
/// 通过字符串构造一个JSON对象属性
/// </summary>
/// <param name="jsonString"></param>
public JsonProperty(String jsonString)
{
this.Parse(ref jsonString);
}
/// <summary>
/// Json字符串解析
/// </summary>
/// <param name="jsonString"></param>
public void Parse(ref String jsonString)
{
if (String.IsNullOrEmpty(jsonString))
{
this.SetValue(null);
}
else
{
string first = jsonString.Substring(0, 1);
string last = jsonString.Substring(jsonString.Length - 1, 1);
//集合
if (first == "[" && last == "]")
{
this.SetValue(this.ParseArray(ref jsonString));
}
//JSON 对象
else if (first == "{" && last == "}")
{
this.SetValue(this.ParseObject(ref jsonString));
}
//字符串类型
else if ((first == "'" || first == "\"") && first == last)
{
this.SetValue(this.ParseString(ref jsonString));
}
//Bool类型
else if (jsonString == "true" || jsonString == "false")
{
this.SetValue(jsonString == "true" ? true : false);
}
//空类型
else if (jsonString == "null")
{
this.SetValue(null);
}
else
{
double d = 0;
//数值类型
if (double.TryParse(jsonString, out d))
{
this.SetValue(d);
}
else
{
this.SetValue(jsonString);
}
}
}
}
/// <summary>
/// Json Array解析
/// </summary>
/// <param name="jsonString"></param>
/// <returns></returns>
private List<JsonProperty> ParseArray(ref String jsonString)
{
List<JsonProperty> list = new List<JsonProperty>();
int len = jsonString.Length;
StringBuilder sb = new StringBuilder();
Stack<Char> stack = new Stack<Char>();
Stack<Char> stackType = new Stack<Char>();
Stack<Char> stackStrValue = new Stack<Char>(); //Value中的特殊字符需要保留
bool conver = false;
Char cur;
for (int i = 1; i <= len - 2; i++)
{
cur = jsonString[i];
if (Char.IsWhiteSpace(cur) && stack.Count == 0 && stackStrValue.Count == 0)
{
;
}
else if ((cur == '\'' || cur == '\"') && stack.Count == 0 && stackType.Count == 0)
{
sb.Length = 0;
sb.Append(cur);
stack.Push(cur);
}
else if (cur == '\\' && stack.Count > 0 && !conver)
{
sb.Append(cur);
conver = true;
}
else if (conver == true)
{
conver = false;
if (cur == 'u')
{
sb.Append(new char[] { cur, jsonString[i + 1], jsonString[i + 2], jsonString[i + 3] });
i += 4;
}
else
{
sb.Append(cur);
}
}
else if ((cur == '\'' || cur == '\"') && stack.Count > 0 && stack.Peek() == cur && stackType.Count == 0)
{
sb.Append(cur);
list.Add(new JsonProperty(sb.ToString()));
stack.Pop();
}
else if ((cur == '\'' || cur == '\"') && stackStrValue.Count == 0)
{
sb.Append(cur);
stackStrValue.Push(cur);
}
else if ((cur == '\'' || cur == '\"') && stackStrValue.Count > 0 && stackStrValue.Peek() == cur)
{
sb.Append(cur);
stackStrValue.Pop();
}
else if ((cur == '[' || cur == '{') && stack.Count == 0)
{
if (stackType.Count == 0)
{
sb.Length = 0;
}
sb.Append(cur);
stackType.Push((cur == '[' ? ']' : '}'));
}
else if ((cur == ']' || cur == '}') && stack.Count == 0 && stackType.Count > 0 && stackType.Peek() == cur)
{
sb.Append(cur);
stackType.Pop();
if (stackType.Count == 0)
{
list.Add(new JsonProperty(sb.ToString()));
sb.Length = 0;
}
}
else if (cur == ',' && stack.Count == 0 && stackType.Count == 0)
{
if (sb.Length > 0)
{
list.Add(new JsonProperty(sb.ToString()));
sb.Length = 0;
}
}
else
{
sb.Append(cur);
}
}
if (stack.Count > 0 || stackType.Count > 0)
{
list.Clear();
throw new ArgumentException("无法解析Json Array对象!");
}
else if (sb.Length > 0)
{
list.Add(new JsonProperty(sb.ToString()));
}
return list;
}
/// <summary>
/// Json String解析
/// </summary>
/// <param name="jsonString"></param>
/// <returns></returns>
private String ParseString(ref String jsonString)
{
int len = jsonString.Length;
StringBuilder sb = new StringBuilder();
bool conver = false;
Char cur;
for (int i = 1; i <= len - 2; i++)
{
cur = jsonString[i];
if (cur == '\\' && !conver)
{
conver = true;
}
else if (conver == true)
{
conver = false;
if (cur == '\\' || cur == '\"' || cur == '\'' || cur == '/')
{
sb.Append(cur);
}
else
{
if (cur == 'u')
{
String temp = new String(new char[] { cur, jsonString[i + 1], jsonString[i + 2], jsonString[i + 3] });
sb.Append((char)Convert.ToInt32(temp, 16));
i += 4;
}
else
{
switch (cur)
{
case 'b':
sb.Append('\b');
break;
case 'f':
sb.Append('\f');
break;
case 'n':
sb.Append('\n');
break;
case 'r':
sb.Append('\r');
break;
case 't':
sb.Append('\t');
break;
}
}
}
}
else
{
sb.Append(cur);
}
}
return sb.ToString();
}
/// <summary>
/// Json Object解析
/// </summary>
/// <param name="jsonString"></param>
/// <returns></returns>
private JsonObject ParseObject(ref String jsonString)
{
return new JsonObject(jsonString);
}
/// <summary>
/// 定义一个索引器，如果属性是非数组的，返回本身
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public JsonProperty this[int index]
{
get
{
JsonProperty r = null;
if (this.mType == JsonPropertyType.Array)
{
if (this.mList != null && (this.mList.Count - 1) >= index)
{
r = this.mList[index];
}
}
else if (index == 0)
{
return this;
}
return r;
}
}
/// <summary>
/// 提供一个字符串索引，简化对Object属性的访问
/// </summary>
/// <param name="propertyName"></param>
/// <returns></returns>
public JsonProperty this[String propertyName]
{
get
{
if (this.mType == JsonPropertyType.Object)
{
return this.mObject[propertyName];
}
else
{
return null;
}
}
set
{
if (this.mType == JsonPropertyType.Object)
{
this.mObject[propertyName] = value;
}
else
{
throw new NotSupportedException("Json属性不是对象类型!");
}
}
}
/// <summary>
/// JsonObject值
/// </summary>
public JsonObject Object
{
get
{
if (this.mType == JsonPropertyType.Object)
return this.mObject;
return null;
}
}
/// <summary>
/// 字符串值
/// </summary>
public String Value
{
get
{
if (this.mType == JsonPropertyType.String)
{
return this.mValue;
}
else if (this.mType == JsonPropertyType.Number)
{
return this.mNumber.ToString();
}
return null;
}
}
/// <summary>
/// 对于集合类型，添加一个元素
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public JsonProperty Add(Object value)
{
if (this.mType != JsonPropertyType.Null && this.mType != JsonPropertyType.Array)
{
throw new NotSupportedException("Json属性不是Array类型，无法添加元素!");
}
if (this.mList == null)
{
this.mList = new List<JsonProperty>();
}
JsonProperty jp = new JsonProperty(value);
this.mList.Add(jp);
this.mType = JsonPropertyType.Array;
return jp;
}
/// <summary>
/// Array值，如果属性是非数组的，则封装成只有一个元素的数组
/// </summary>
public List<JsonProperty> Items
{
get
{
if (this.mType == JsonPropertyType.Array)
{
return this.mList;
}
else
{
List<JsonProperty> list = new List<JsonProperty>();
list.Add(this);
return list;
}
}
}
/// <summary>
/// 数值
/// </summary>
public double Number
{
get
{
if (this.mType == JsonPropertyType.Number)
{
return this.mNumber;
}
else
{
return double.NaN;
}
}
}
/// <summary>
/// 清空属性值，重置为默认值
/// </summary>
public void Clear()
{
this.mType = JsonPropertyType.Null;
this.mValue = String.Empty;
this.mObject = null;
if (this.mList != null)
{
this.mList.Clear();
this.mList = null;
}
}
/// <summary>
/// 获取属性值
/// </summary>
/// <returns></returns>
public Object GetValue()
{
if (this.mType == JsonPropertyType.String)
{
return this.mValue;
}
if (this.mType == JsonPropertyType.Object)
{
return this.mObject;
}
if (this.mType == JsonPropertyType.Array)
{
return this.mList;
}
if (this.mType == JsonPropertyType.Bool)
{
return this.mBool;
}
if (this.mType == JsonPropertyType.Number)
{
return this.mNumber;
}
return null;
}
/// <summary>
/// 获取指定类型的属性值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public virtual T GetValue<T>() where T : class
{
return (GetValue() as T);
}
/// <summary>
/// 设置属性的值
/// </summary>
/// <param name="value"></param>
public virtual void SetValue(Object value)
{
if (value is String)
{
this.mType = JsonPropertyType.String;
this.mValue = (String)value;
}
else if (value is List<JsonProperty>)
{
this.mList = ((List<JsonProperty>)value);
this.mType = JsonPropertyType.Array;
}
else if (value is JsonObject)
{
this.mObject = (JsonObject)value;
this.mType = JsonPropertyType.Object;
}
else if (value is bool)
{
this.mBool = (bool)value;
this.mType = JsonPropertyType.Bool;
}
else if (value == null)
{
this.mType = JsonPropertyType.Null;
}
else
{
double d = 0;
if (double.TryParse(value.ToString(), out d))
{
this.mNumber = d;
this.mType = JsonPropertyType.Number;
}
else
{
throw new ArgumentException("错误的参数类型!");
}
}
}
/// <summary>
/// 对于集合类型，返回元素的数目
/// </summary>
public virtual int Count
{
get
{
int c = 0;
if (this.mType == JsonPropertyType.Array)
{
if (this.mList != null)
{
c = this.mList.Count;
}
}
else
{
c = 1;
}
return c;
}
}
/// <summary>
/// 返回属性值类型
/// </summary>
public JsonPropertyType Type
{
get { return this.mType; }
}
/// <summary>
/// 转换成字符串
/// </summary>
/// <returns></returns>
public override string ToString()
{
return this.ToString("");
}
/// <summary>
/// 指定格式表达式转换成字符串
/// </summary>
/// <param name="format"></param>
/// <returns></returns>
public virtual string ToString(String format)
{
StringBuilder sb = new StringBuilder();
if (this.mType == JsonPropertyType.String)
{
sb.Append("\"").Append(this.mValue).Append("\"");
return sb.ToString();
}
else if (this.mType == JsonPropertyType.Bool)
{
return this.mBool ? "true" : "false";
}
else if (this.mType == JsonPropertyType.Number)
{
return this.mNumber.ToString();
}
else if (this.mType == JsonPropertyType.Null)
{
return "null";
}
else if (this.mType == JsonPropertyType.Object)
{
return this.mObject.ToString();
}
else
{
if (this.mList == null || this.mList.Count == 0)
{
sb.Append("[]");
}
else
{
sb.Append("[");
if (this.mList.Count > 0)
{
foreach (JsonProperty p in this.mList)
{
sb.Append(p.ToString());
sb.Append(", ");
}
sb.Length -= 2;
}
sb.Append("]");
}
return sb.ToString();
}
}
}
