调用MySqlHelper内容：
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string[] col = new string [3] { "id", "name", "age" }; string[] colType = new string [3] { "int(5) primary key", "varchar(8)", "int(5)" }; string[] values = new string [3] {"1", "'a'", "28" }; // Use this for initialization void Start () { MySqlHelper sql = new MySqlHelper (); sql.Create( "tableTest1", col, colType); sql.Insert( "tableTest1", values); sql.Update( "tableTest1", new string[] { "age" }, new string[] { "18" }, "id" , "1"); sql.Delete( "tableTest1", new string[] { "age" }, new string[] { "18" }); // 获取查询结果保存到DataSet变量 DataSet ds = sql.Select("tableTest1" , "age", "id = 1"); if (ds != null ) { // 创建临时表保存查询结果 DataTable table = ds.Tables[0]; // 遍历查询结果 并输出 foreach (DataRow row in table.Rows) { foreach (DataColumn column in table.Columns) { Debug.Log(row[column]); } } } } |
MySqlHelper内容：
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using UnityEngine; using System; using System.Data; using System.Collections; using MySql.Data.MySqlClient; using MySql.Data; using System.IO; public class MySqlHelper { public static MySqlConnection dbConnection; //如果只是在本地的话，写localhost就可以。 // static string host = "localhost"; //如果是局域网，那么写上本机的局域网IP static string host = "qdm16206948.my3w.com" ; static string id = "qdm16206948" ; static string pwd = "woaijia345" ; static string database = "qdm16206948_db" ; publicMySqlHelper() { Initialize(); } /// <summary> /// 新建并打开连接 /// </summary> public static void Initialize() { try { string connectionString = string .Format("Server = {0};port={4};Database = {1}; User ID = {2}; Password = {3};",host,database,id,pwd, "3306"); dbConnection = new MySqlConnection (connectionString); dbConnection.Open(); } catch (Exception e){ throw new Exception( "服务器连接失败，请重新检查是否打开MySql服务。" + e.Message.ToString()); } } /// <summary> /// 创建表 /// 参数：表名称、属性列、 属性列类型 /// </summary> public DataSet Create (string _TableName, string[] _ColsName, string [] _ColsType) { if (_ColsName.Length != _ColsType.Length) { throw new Exception ( "columns.Length != colType.Length" ); } try{ string query = "CREATE TABLE " + _TableName + " (" + _ColsName[0] + " " + _ColsType[0]; for (int i = 1; i < _ColsName.Length; ++i) { query += ", " + _ColsName[i] + " " + _ColsType[i]; } query += ")"; Debug.Log("~~创建成功~~" ); return ExecuteQuery(query); } catch { return null ; } } /// <summary> /// 创建表 自动ID /// 参数：表名称、属性列、 属性列类型 /// </summary> public DataSet CreateAutoID (string _TableName, string[] _ColsName, string [] _ColsType) { if (_ColsName.Length != _ColsType.Length) { throw new Exception ( "columns.Length != colType.Length" ); } try { string query = "CREATE TABLE " + _TableName + " (" + _ColsName[0] + " " + _ColsType[0] + " NOT NULL AUTO_INCREMENT"; for (int i = 1; i < _ColsName.Length; ++i) { query += ", " + _ColsName[i] + " " + _ColsType[i]; } query += ", PRIMARY KEY (" + _ColsName[0] + ")" + ")"; Debug.Log("~~创建成功~~" ); return ExecuteQuery(query); } catch { return null ; } } /// <summary> /// 插入数据 /// 参数：表名称、值 /// 特点：不适用自动ID /// </summary> public DataSet Insert (string _TableName, string[] _Values) { try { string query = "INSERT INTO " + _TableName + " VALUES (" + _Values[0]; for (int i = 1; i < _Values.Length; ++i) { query += ", " + _Values[i]; } query += ")"; Debug.Log("~~添加成功~~" ); return ExecuteQuery(query); } catch { Debug.Log("添加失败，请检查错误后重新再试" ); return null ; } } /// <summary> /// 插入数据 /// 参数：表名称、属性列、值 /// 特点：可选择性添加值 /// </summary> public DataSet Insert (string _TableName, string[] _ColsName, string [] _Values) { try { if (_ColsName.Length != _Values.Length) { throw new Exception( "columns.Length != colType.Length" ); } string query = "INSERT INTO " + _TableName + " (" + _ColsName[0]; for (int i = 1; i < _ColsName.Length; ++i) { query += ", " + _ColsName[i]; } query += ") VALUES (" + _Values[0]; for (int i = 1; i < _Values.Length; ++i) { query += ", " + _Values[i]; } query += ")"; Debug.Log("~~添加成功~~" ); return ExecuteQuery(query); } catch { Debug.Log("添加失败，请检查错误后重新再试" ); return null ; } } /// <summary> /// 查询数据 /// 参数：表名称、查询内容 /// </summary> public DataSet Select(string _TableName, string _Select) { try { string query = "select " + _Select + " from " + _TableName; return ExecuteQuery(query); } catch { Debug.Log("查询失败，请检查错误后重新再试" ); return null ; } } /// <summary> /// 查询数据 /// 参数：表名称、查询内容、查询条件 /// </summary> public DataSet Select(string _TableName, string _Select, string _Condition) { try { string query = "select " + _Select + " from " + _TableName + " where " + _Condition; return ExecuteQuery(query); } catch { Debug.Log("查询失败，请检查错误后重新再试" ); return null ; } } /// <summary> /// 修改数据 /// 参数：表名称、准备修改的属性列、准备修改的属性列的值、条件信息属性列、条件信息属性列的值 /// </summary> public DataSet Update(string _TableName, string[] _SetColsName, string[] _SetColsValues, string _ConditionColName, string _ConditionColValue) { try { string query = "UPDATE " + _TableName + " SET " + _SetColsName[0] + " = " + _SetColsValues[0]; for (int i = 1; i < _SetColsValues.Length; ++i) { query += ", " + _SetColsName[i] + " =" + _SetColsValues[i]; } query += " WHERE " + _ConditionColName + " = " + _ConditionColValue + " "; Debug.Log("~~修改成功~~" ); return ExecuteQuery(query); } catch { Debug.Log("修改失败，请检查错误后重新再试" ); return null ; } } /// <summary> /// 删除数据 /// 参数：表名称、属性列、值 /// </summary> public DataSet Delete(string _TableName, string [] _ColsName,string [] _ColsValue) { try { string query = "DELETE FROM " + _TableName + " WHERE " + _ColsName[0] + " = " + _ColsValues[0]; for (int i = 1; i < _ColsValues.Length; ++i) { query += " or " + _ColsName[i] + " = " + _ColsValues[i]; } Debug.Log("~~删除成功~~" ); return ExecuteQuery(query); } catch { Debug.Log("删除失败，请检查错误后重新再试" ); return null ; } } public void Close() { if(dbConnection != null ) { dbConnection.Close(); dbConnection.Dispose(); dbConnection = null; } } public static DataSet ExecuteQuery(string sqlString) { if (dbConnection.State == ConnectionState .Open) { DataSet ds = new DataSet(); try { MySqlDataAdapter da = new MySqlDataAdapter(sqlString, dbConnection); da.Fill(ds); } catch (Exception ee) { throw new Exception( "SQL:" + sqlString + "/n" + ee.Message.ToString()); } return ds; } return null ; } } |
MySqlHelper 头文件下载地址：
链接: http://pan.baidu.com/s/1uaQAi 密码: 3tsy
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