Unity3D中使用MiniJson解析json的例子

jsonObject：
---------------------------------
{

"name":"中国",

"province":[

{

"name":"黑龙江",

"cities":{

"city":[

"哈尔滨",

"大庆"

]

}

},

{

"name":"广东",

"cities":{

"city":[

"广州",

"深圳",

"珠海"

]

}

},

{

"name":"台湾",

"cities":{

"city":[

"台北",

"高雄"

]

}

},

{

"name":"新疆",

"cities":{

"city":[

"乌鲁木齐"

]

}

}

]

}
--------------------------------

[csharp] view plaincopy

public class JsonDeserialize
{
protected string url = "http://localhost:8080/AssetBundleData/Web/Singlea/";
}

[csharp] view plaincopy

using UnityEngine;
using System.Collections.Generic;

public class ChinaJsonDeserialize : JsonDeserialize
{
private China _china;

public China china
{
get
{
return _china;
}
}

public ChinaJsonDeserialize(string jsonData)
{
_china = new China();
ParseJson(jsonData);
}

void ParseJson(string jsonData)
{

if (string.IsNullOrEmpty(jsonData))
{
Debug.LogError("ChinaJson is null or empty");
return;
}

Dictionary<string, object> jsonObjects = MiniJSON.Json.Deserialize(jsonData) as Dictionary<string, object>;
_china.chinaName = jsonObjects["name"].ToString();
_china.province = new List<Province>();

List<object> provinceList = jsonObjects["province"] as List<object>;

foreach (var i in provinceList)
{
Dictionary<string, object> province = i as Dictionary<string, object>;
Province provinceObj = new Province();
provinceObj.provinceName = province["name"].ToString();
provinceObj.city = new List<City>();

Dictionary<string, object> citesDic = province["cities"] as Dictionary<string, object>;

List<object> childCitesList = citesDic["city"] as List<object>;
foreach (var childCity in childCitesList)
{
City city = new City();
city.cityName = childCity.ToString();

provinceObj.city.Add(city);
}

_china.province.Add(provinceObj);
}
}
}

public class China
{
public string chinaName;
public List<Province> province;
}

public class Province
{
public string provinceName;
public List<City> city;
}

public class City
{
public string cityName;
}

[csharp] view plaincopy

using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace MiniJSON {

public static class Json {
/// <summary>
/// Parses the string json into a value
/// </summary>
/// <param name="json">A JSON string.</param>
/// <returns>An List<object>, a Dictionary<string, object>, a double, an integer,a string, null, true, or false</returns>
public static object Deserialize(string json) {
// save the string for debug information
if (json == null) {
return null;
}

return Parser.Parse(json);
}

sealed class Parser : IDisposable {
const string WHITE_SPACE = " \t\n\r";
const string WORD_BREAK = " \t\n\r{}[],:\"";

enum TOKEN {
NONE,
CURLY_OPEN,
CURLY_CLOSE,
SQUARED_OPEN,
SQUARED_CLOSE,
COLON,
COMMA,
STRING,
NUMBER,
TRUE,
FALSE,
NULL
};

StringReader json;

Parser(string jsonString) {
json = new StringReader(jsonString);
}

public static object Parse(string jsonString) {
using (var instance = new Parser(jsonString)) {
return instance.ParseValue();
}
}

public void Dispose() {
json.Dispose();
json = null;
}

Dictionary<string, object> ParseObject() {
Dictionary<string, object> table = new Dictionary<string, object>();

// ditch opening brace
json.Read();

// {
while (true) {
switch (NextToken) {
case TOKEN.NONE:
return null;
case TOKEN.COMMA:
continue;
case TOKEN.CURLY_CLOSE:
return table;
default:
// name
string name = ParseString();
if (name == null) {
return null;
}

// :
if (NextToken != TOKEN.COLON) {
return null;
}
// ditch the colon
json.Read();

// value
table[name] = ParseValue();
break;
}
}
}

List<object> ParseArray() {
List<object> array = new List<object>();

// ditch opening bracket
json.Read();

// [
var parsing = true;
while (parsing) {
TOKEN nextToken = NextToken;

switch (nextToken) {
case TOKEN.NONE:
return null;
case TOKEN.COMMA:
continue;
case TOKEN.SQUARED_CLOSE:
parsing = false;
break;
default:
object value = ParseByToken(nextToken);

array.Add(value);
break;
}
}

return array;
}

object ParseValue() {
TOKEN nextToken = NextToken;
return ParseByToken(nextToken);
}

object ParseByToken(TOKEN token) {
switch (token) {
case TOKEN.STRING:
return ParseString();
case TOKEN.NUMBER:
return ParseNumber();
case TOKEN.CURLY_OPEN:
return ParseObject();
case TOKEN.SQUARED_OPEN:
return ParseArray();
case TOKEN.TRUE:
return true;
case TOKEN.FALSE:
return false;
case TOKEN.NULL:
return null;
default:
return null;
}
}

string ParseString() {
StringBuilder s = new StringBuilder();
char c;

// ditch opening quote
json.Read();

bool parsing = true;
while (parsing) {

if (json.Peek() == -1) {
parsing = false;
break;
}

c = NextChar;
switch (c) {
case '"':
parsing = false;
break;
case '\\':
if (json.Peek() == -1) {
parsing = false;
break;
}

c = NextChar;
switch (c) {
case '"':
case '\\':
case '/':
s.Append(c);
break;
case 'b':
s.Append('\b');
break;
case 'f':
s.Append('\f');
break;
case 'n':
s.Append('\n');
break;
case 'r':
s.Append('\r');
break;
case 't':
s.Append('\t');
break;
case 'u':
var hex = new StringBuilder();

for (int i=0; i< 4; i++) {
hex.Append(NextChar);
}

s.Append((char) Convert.ToInt32(hex.ToString(), 16));
break;
}
break;
default:
s.Append(c);
break;
}
}

return s.ToString();
}

object ParseNumber() {
string number = NextWord;

if (number.IndexOf('.') == -1) {
long parsedInt;
Int64.TryParse(number, out parsedInt);
return parsedInt;
}

double parsedDouble;
Double.TryParse(number, out parsedDouble);
return parsedDouble;
}

void EatWhitespace() {
while (WHITE_SPACE.IndexOf(PeekChar) != -1) {
json.Read();

if (json.Peek() == -1) {
break;
}
}
}

char PeekChar {
get {
return Convert.ToChar(json.Peek());
}
}

char NextChar {
get {
return Convert.ToChar(json.Read());
}
}

string NextWord {
get {
StringBuilder word = new StringBuilder();

while (WORD_BREAK.IndexOf(PeekChar) == -1) {
word.Append(NextChar);

if (json.Peek() == -1) {
break;
}
}

return word.ToString();
}
}

TOKEN NextToken {
get {
EatWhitespace();

if (json.Peek() == -1) {
return TOKEN.NONE;
}

char c = PeekChar;
switch (c) {
case '{':
return TOKEN.CURLY_OPEN;
case '}':
json.Read();
return TOKEN.CURLY_CLOSE;
case '[':
return TOKEN.SQUARED_OPEN;
case ']':
json.Read();
return TOKEN.SQUARED_CLOSE;
case ',':
json.Read();
return TOKEN.COMMA;
case '"':
return TOKEN.STRING;
case ':':
return TOKEN.COLON;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '-':
return TOKEN.NUMBER;
}

string word = NextWord;

switch (word) {
case "false":
return TOKEN.FALSE;
case "true":
return TOKEN.TRUE;
case "null":
return TOKEN.NULL;
}

return TOKEN.NONE;
}
}
}

/// <summary>
/// Converts a IDictionary / IList object or a simple type (string, int, etc.) into a JSON string
/// </summary>
/// <param name="json">A Dictionary<string, object> / List<object></param>
/// <returns>A JSON encoded string, or null if object 'json' is not serializable</returns>
public static string Serialize(object obj) {
return Serializer.Serialize(obj);
}

sealed class Serializer {
StringBuilder builder;

Serializer() {
builder = new StringBuilder();
}

public static string Serialize(object obj) {
var instance = new Serializer();

instance.SerializeValue(obj);

return instance.builder.ToString();
}

void SerializeValue(object value) {
IList asList;
IDictionary asDict;
string asStr;

if (value == null) {
builder.Append("null");
}
else if ((asStr = value as string) != null) {
SerializeString(asStr);
}
else if (value is bool) {
builder.Append(value.ToString().ToLower());
}
else if ((asList = value as IList) != null) {
SerializeArray(asList);
}
else if ((asDict = value as IDictionary) != null) {
SerializeObject(asDict);
}
else if (value is char) {
SerializeString(value.ToString());
}
else {
SerializeOther(value);
}
}

void SerializeObject(IDictionary obj) {
bool first = true;

builder.Append('{');

foreach (object e in obj.Keys) {
if (!first) {
builder.Append(',');
}

SerializeString(e.ToString());
builder.Append(':');

SerializeValue(obj[e]);

first = false;
}

builder.Append('}');
}

void SerializeArray(IList anArray) {
builder.Append('[');

bool first = true;

foreach (object obj in anArray) {
if (!first) {
builder.Append(',');
}

SerializeValue(obj);

first = false;
}

builder.Append(']');
}

void SerializeString(string str) {
builder.Append('\"');

char[] charArray = str.ToCharArray();
foreach (var c in charArray) {
switch (c) {
case '"':
builder.Append("\\\"");
break;
case '\\':
builder.Append("\\\\");
break;
case '\b':
builder.Append("\\b");
break;
case '\f':
builder.Append("\\f");
break;
case '\n':
builder.Append("\\n");
break;
case '\r':
builder.Append("\\r");
break;
case '\t':
builder.Append("\\t");
break;
default:
int codepoint = Convert.ToInt32(c);
if ((codepoint >= 32) && (codepoint <= 126)) {
builder.Append(c);
}
else {
builder.Append("\\u" + Convert.ToString(codepoint, 16).PadLeft(4, '0'));
}
break;
}
}

builder.Append('\"');
}

void SerializeOther(object value) {
if (value is float
|| value is int
|| value is uint
|| value is long
|| value is double
|| value is sbyte
|| value is byte
|| value is short
|| value is ushort
|| value is ulong
|| value is decimal) {
builder.Append(value.ToString());
}
else {
SerializeString(value.ToString());
}
}
}
}
}