Unity網路互動丨Unity Web弱聯網的實現
阿新 • • 發佈：2019-01-10
Unity介面實現效果：
上兩行：輸入使用者名稱、密碼
註冊：將輸入的使用者名稱、密碼傳送到資料庫
顯示：從資料庫獲取資料顯示在下方
注意：
預設已設好PHP執行的相關Web環境：
1、Apache
2、MySQL
3、PHP
MySQL端
1、連結資料庫，新建一個名為myscoresdb的資料庫
2、建立如下圖所示Table表，並新增如下三條資料
Unity端程式碼
1、C#
掛在到遊戲物體上，注意給程式碼賦值對應的輸入文字框和輸出顯示用的文字框
using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI; public class HiScoreApp : MonoBehaviour { public InputField nameInputField; public InputField scoreInputField; public Text[] show; // Use this for initialization void Start () { GameObject.Find("Register").GetComponent<Button>().onClick.AddListener(StartUpload); GameObject.Find("Show").GetComponent<Button>().onClick.AddListener(StartShow); } void StartUpload() { StartCoroutine(UploadScore(nameInputField.text, scoreInputField.text)); nameInputField.text = ""; scoreInputField.text = ""; } void StartShow() { StartCoroutine(DownloadScores(nameInputField.text, scoreInputField.text)); } IEnumerator UploadScore(string name,string score) { WWWForm form = new WWWForm(); form.AddField("name", name); form.AddField("score", score); WWW www = new WWW("http://127.0.0.1/UploadScore.php", form); yield return www; if (www.error != null) { Debug.LogError(www.error); } else Debug.Log(www.text); //PHP：echo'upload '.$UserID.":".$hiscore; } public class UserData { public int id; public string name; public int score; } IEnumerator DownloadScores(string name,string score) { WWW www = new WWW("http://127.0.0.1/downloadscores.php"); yield return www; if (www.error != null) Debug.Log(www.error); else { Debug.Log(www.text); //將PHP返回的資料解析為字典格式，並在show中展示 var dict = MiniJSON.Json.Deserialize(www.text) as Dictionary<string, object>; int index = 0; foreach(object v in dict.Values) { UserData user = new UserData(); MiniJSON.Json.ToObject(user, v); //將字典中的值反序列化為UserData show[index].text = string.Format("ID:{0:D2} 名字：{1} 分數：{2}", user.id, user.name, user.score); index++; } } } }
2、MiniJSON
放在Unity中即可，HiScoreApp指令碼會用到它來解析資料
/* * Copyright (c) 2013 Calvin Rien * * Based on the JSON parser by Patrick van Bergen * http://techblog.procurios.nl/k/618/news/view/14605/14863/How-do-I-write-my-own-parser-for-JSON.html * * Simplified it so that it doesn't throw exceptions * and can be used in Unity iPhone with maximum code stripping. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ using System; using System.Collections; using System.Collections.Generic; using System.IO; using System.Text; using System.Reflection; using System.Threading; namespace MiniJSON { // Example usage: // // using UnityEngine; // using System.Collections; // using System.Collections.Generic; // using MiniJSON; // // public class MiniJSONTest : MonoBehaviour { // void Start () { // var jsonString = "{ \"array\": [1.44,2,3], " + // "\"object\": {\"key1\":\"value1\", \"key2\":256}, " + // "\"string\": \"The quick brown fox \\\"jumps\\\" over the lazy dog \", " + // "\"unicode\": \"\\u3041 Men\u00fa sesi\u00f3n\", " + // "\"int\": 65536, " + // "\"float\": 3.1415926, " + // "\"bool\": true, " + // "\"null\": null }"; // // var dict = Json.Deserialize(jsonString) as Dictionary<string,object>; // // Debug.Log("deserialized: " + dict.GetType()); // Debug.Log("dict['array'][0]: " + ((List<object>) dict["array"])[0]); // Debug.Log("dict['string']: " + (string) dict["string"]); // Debug.Log("dict['float']: " + (double) dict["float"]); // floats come out as doubles // Debug.Log("dict['int']: " + (long) dict["int"]); // ints come out as longs // Debug.Log("dict['unicode']: " + (string) dict["unicode"]); // // var str = Json.Serialize(dict); // // Debug.Log("serialized: " + str); // } // } /// <summary> /// This class encodes and decodes JSON strings. /// Spec. details, see http://www.json.org/ /// /// JSON uses Arrays and Objects. These correspond here to the datatypes IList and IDictionary. /// All numbers are parsed to doubles. /// </summary> public static class Json { private enum DataType { Int, Float, Boolean, String, Array, Object, Unknown } private static Json.DataType checkObjectType(object obj) { if (obj is string) { return Json.DataType.String; } if (obj is int) { return Json.DataType.Int; } if (obj is float) { return Json.DataType.Float; } if (obj is Dictionary<string, object>) { return Json.DataType.Object; } if (obj is List<object>) { return Json.DataType.Array; } if (obj is bool) { return Json.DataType.Boolean; } return Json.DataType.Unknown; } public static object ToObject(object output, object input) { Thread.Sleep(0); if (input == null) { output = null; return output; } string text = "DestType:" + output.GetType().ToString() + " >> "; FieldInfo[] fields = output.GetType().GetFields(); Dictionary<string, object> dictionary = input as Dictionary<string, object>; FieldInfo[] array = fields; for (int i = 0; i < array.Length; i++) { FieldInfo fieldInfo = array[i]; if (dictionary.ContainsKey(fieldInfo.Name)) { if (dictionary[fieldInfo.Name] != null) { Json.DataType dataType = Json.checkObjectType(dictionary[fieldInfo.Name]); if (dataType != Json.DataType.Unknown) { try { Type fieldType = fieldInfo.FieldType; object obj = null; bool flag = false; switch (dataType) { case Json.DataType.Int: { object obj2 = (int)dictionary[fieldInfo.Name]; if (fieldType == typeof(string)) { obj = obj2.ToString(); } else { if (fieldType == typeof(bool)) { bool flag2 = (int)obj2 != 0; obj = flag2; } else { if (fieldType.IsArray) { obj = Activator.CreateInstance(fieldType, new object[] { 1 }); Type elementType = obj.GetType().GetElementType(); object value = Activator.CreateInstance(elementType); int num = (int)obj2; value = num; ((Array)obj).SetValue(value, 0); } else { obj = obj2; } } } flag = true; break; } case Json.DataType.Float: { object obj3 = (float)dictionary[fieldInfo.Name]; if (fieldType == typeof(string)) { obj = (obj3 as string); } else { if (fieldType == typeof(int)) { float num2 = (float)obj3; obj = (int)num2; } else { if (fieldType.IsArray) { obj = Activator.CreateInstance(fieldType, new object[] { 1 }); Type elementType2 = obj.GetType().GetElementType(); object value2 = Activator.CreateInstance(elementType2); float num3 = (float)obj3; value2 = num3; ((Array)obj).SetValue(value2, 0); } else { obj = obj3; } } } flag = true; break; } case Json.DataType.Boolean: if (fieldType == typeof(bool)) { obj = (bool)dictionary[fieldInfo.Name]; flag = true; } break; case Json.DataType.String: { string text2 = dictionary[fieldInfo.Name] as string; if (fieldType == typeof(string)) { obj = text2; } else { if (fieldType == typeof(int)) { int num4 = 0; if (int.TryParse(text2, out num4)) { obj = num4; } else { obj = 0; } } else { if (fieldType == typeof(float)) { float num5 = 0f; if (float.TryParse(text2, out num5)) { obj = float.Parse(text2); } else { obj = 0f; } } else { if (fieldType.IsEnum) { if (Enum.IsDefined(fieldType, text2.ToString())) { obj = Enum.Parse(fieldType, text2.ToString()); } } else { if (fieldType.IsArray) { obj = Activator.CreateInstance(fieldType, new object[] { 1 }); ((Array)obj).SetValue(text2, 0); } } } } } flag = true; break; } case Json.DataType.Array: if (fieldType.IsArray) { List<object> list = dictionary[fieldInfo.Name] as List<object>; if (list != null && (list.Count != 1 || list[0] != null)) { obj = Activator.CreateInstance(fieldType, new object[] { list.Count }); Type elementType3 = obj.GetType().GetElementType(); for (int j = 0; j < list.Count; j++) { Thread.Sleep(0); object obj4; if (elementType3 == typeof(string)) { obj4 = new string[1]; } else { obj4 = Activator.CreateInstance(elementType3); } try { Json.DataType dataType2 = Json.checkObjectType(list[j]); if (dataType2 == Json.DataType.String) { obj4 = (list[j] as string); } else { if (dataType2 == Json.DataType.Object) { Json.ToObject(obj4, list[j]); } else { if (dataType2 == Json.DataType.Int || dataType2 == Json.DataType.Float) { if (elementType3 == typeof(float)) { obj4 = (float)list[j]; } else { obj4 = (int)list[j]; } } else { obj4 = list[j]; } } } ((Array)obj).SetValue(obj4, j); } catch (Exception var_29_560) { } } flag = true; } } break; case Json.DataType.Object: { object output2 = Activator.CreateInstance(fieldType); obj = Json.ToObject(output2, dictionary[fieldInfo.Name]); flag = true; break; } default: obj = Activator.CreateInstance(fieldType); break; } if (flag) { fieldInfo.SetValue(output, obj); } } catch (KeyNotFoundException) { } } } } } return output; } public static T ToObjectArray<T>(object input) { Type typeFromHandle = typeof(T); List<object> list = input as List<object>; object obj = null; if (list == null || (list.Count == 1 && list[0] == null)) { return (T)((object)obj); } obj = Activator.CreateInstance(typeFromHandle, new object[] { list.Count }); Type elementType = obj.GetType().GetElementType(); for (int i = 0; i < list.Count; i++) { object obj2; if (elementType == typeof(string)) { obj2 = new string[1]; } else { obj2 = Activator.CreateInstance(elementType); } try { Json.DataType dataType = Json.checkObjectType(list[i]); if (dataType == Json.DataType.String) { obj2 = (list[i] as string); } else { if (dataType == Json.DataType.Object) { Json.ToObject(obj2, list[i]); } else { if (dataType == Json.DataType.Int || dataType == Json.DataType.Float) { if (elementType == typeof(float)) { obj2 = (float)list[i]; } else { obj2 = (int)list[i]; } } else { obj2 = list[i]; } } } ((Array)obj).SetValue(obj2, i); } catch (Exception ex) { Console.WriteLine(string.Concat(new object[] { ex.Message, "\nArray Member mismatch: [", typeFromHandle.Name, "] ReqType is ", elementType, " But ", Json.checkObjectType(list[i]).ToString().ToString(), " data Comes" })); } } return (T)((object)obj); } /// <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 WORD_BREAK = "{}[],:\""; public static bool IsWordBreak(char c) { return Char.IsWhiteSpace(c) || WORD_BREAK.IndexOf(c) != -1; } 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 char[4]; for (int i=0; i< 4; i++) { hex[i] = NextChar; } s.Append((char) Convert.ToInt32(new string(hex), 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 (Char.IsWhiteSpace(PeekChar)) { 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 (!IsWordBreak(PeekChar)) { word.Append(NextChar); if (json.Peek() == -1) { break; } } return word.ToString(); } } TOKEN NextToken { get { EatWhitespace(); if (json.Peek() == -1) { return TOKEN.NONE; } switch (PeekChar) { 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; } switch (NextWord) { 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((bool) value ? "true" : "false"); } else if ((asList = value as IList) != null) { SerializeArray(asList); } else if ((asDict = value as IDictionary) != null) { SerializeObject(asDict); } else if (value is char) { SerializeString(new string((char) value, 1)); } 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"); builder.Append(codepoint.ToString("x4")); } break; } } builder.Append('\"'); } void SerializeOther(object value) { // NOTE: decimals lose precision during serialization. // They always have, I'm just letting you know. // Previously floats and doubles lost precision too. if (value is float) { builder.Append(((float) value).ToString("R")); } else if (value is int || value is uint || value is long || value is sbyte || value is byte || value is short || value is ushort || value is ulong) { builder.Append(value); } else if (value is double || value is decimal) { builder.Append(Convert.ToDouble(value).ToString("R")); } else { SerializeString(value.ToString()); } } } } }
Web端 PHP內容
1、UploadScore
該指令碼為PHP指令碼，用於將從Unity獲得的資料傳到資料庫儲存起來。預設已經設定好PHP執行環境
<?php //連線資料庫，輸入地址，使用者名稱，密碼和資料庫名稱 $myData=mysqli_connect("localhost","你的賬號","你的密碼","myscoresdb"); if(mysqli_connect_errno()) //如果連線資料庫失敗 { echo mysqli_connect_error(); //die()、exit(0)：http://www.w3school.com.cn/php/func_misc_die.asp die(); exit(0); } //確認資料庫使用UTF-8模式 //mysqli_query:http://www.w3school.com.cn/php/func_mysql_query.asp //https://blog.csdn.net/zhaojunjie_dream/article/details/79979672 mysqli_query($myData,"set names utf8"); //讀入由Unity傳輸來的使用者名稱和分數，使用mysqli_real_escape_string校驗使用者名稱合法性（防止SQL注入） //SQL注入：https://baike.so.com/doc/6793375-7010077.html //mysqli_real_escape_string：http://www.runoob.com/php/func-mysqli-real-escape-string.html $UserID= mysqli_real_escape_string($myData,$_POST["name"]); //使用者名稱 $hiscore=$_POST["score"]; //分數 //插入新資料 $sql="insert into hiscores value(NULL,'$UserID','$hiscore')"; mysqli_query($myData,$sql)or die("SQL ERROR : ".$requestSQL); //關閉資料庫 mysqli_close($myData); //將結果傳送到Unity端 echo'upload '.$UserID.":".$hiscore; ?>
2、DownloadScores
該指令碼由Unity的HiScoreApp指令碼呼叫，用於下載資料庫分數，供HiScoreApp使用
<?php
//連線資料庫，輸入地址，使用者名稱、密碼和資料庫名稱
$myData= mysqli_connect("localhost","你的賬號","你的密碼","myscoresdb");
if(mysqli_connect_errno()) //如果連線資料庫失敗
{
echo mysqli_connect_error();
die();
exit(0);
}
//確認資料庫文字使用UTF-8格式
mysqli_query($myData,"set names utf8");
//查詢並排序
//SELECT:http://www.w3school.com.cn/php/php_mysql_select.asp
//* 字元選取表中所有資料
//order by,排序:http://www.w3school.com.cn/php/php_mysql_order_by.asp
//DESC：記錄集的排序順序預設是升序，DESC改為降序
//LIMIT：http://www.5idev.com/p-php_mysql_limit.shtml
$requestSQL="SELECT*FROM hiscores ORDER by score DESC LIMIT 20";
$result= mysqli_query($myData, $requestSQL) or die("SQL ERROR:".$requestSQL);
//mysqli_num_rows：http://www.w3school.com.cn/php/func_mysql_num_rows.asp
$num_results= mysqli_num_rows($result);
//準備傳送資料到Unity
$arr=array();
//將查詢結果寫入到JSON格式的陣列中
for($i=0;$i<$num_results;$i++)
{
$row=mysqli_fetch_array($result,MYSQLI_ASSOC); //獲得一行資料
$id=$row['id']; //獲得ID
$name=$row['name']; //獲得使用者名稱
$score=$row['score']; //獲得分數
$arr[$id]['id']=$row['id']; //將ID存入陣列
$arr[$id]['name']=$name; //將使用者名稱存入陣列
$arr[$id]['score']=$score; //將分數存入陣列
}
mysqli_free_result($result); //釋放SQL查詢結果
mysqli_close($myData); //關閉資料庫
//向Unity傳送JSON格式的資料
echo json_encode($arr);
?>