==========================
/// <summary>
/// 需要引用的DLL文件：
/// Mysql.Data.dll
/// l18n.cjk.dll
/// l18n.dll
/// system.data.dll
/// system.drawing.dll
/// </summary>
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using MySql.Data.MySqlClient;
namespace Assets
{
public class SqlAccess
{
public static MySqlConnection mySqlConnection;//连接类对象
private static string database = "test";
private static string host = "127.0.0.1";
private static string id = "root";
private static string pwd = "123";
public SqlAccess()
{
OpenSql();
}
/// <summary>
/// 打开数据库
/// </summary>
public static void OpenSql()
{
try
{
//string.Format是将指定的 String类型的数据中的每个格式项替换为相应对象的值的文本等效项。
string sqlString = string.Format("Database={0};Data Source={1};User Id={2};Password={3};", database, host, id, pwd, "3306");
mySqlConnection = new MySqlConnection(sqlString);
mySqlConnection.Open();
}
catch (Exception)
{
throw new Exception("服务器连接失败.....");
}
}
/// <summary>
/// 创建表
/// </summary>
/// <param name="name">表名</param>
/// <param name="colName">属性列</param>
/// <param name="colType">属性类型</param>
/// <returns></returns>
public DataSet CreateTable(string name, string[] colName, string[] colType)
{
if (colName.Length != colType.Length)
{
throw new Exception("输入不正确：" + "columns.Length != colType.Length");
}
string query = "CREATE TABLE " + name + "(" + colName[0] + " " + colType[0];
for (int i = 1; i < colName.Length; i++)
{
query += "," + colName[i] + " " + colType[i];
}
query += ")";
return QuerySet(query);
}
/// <summary>
/// 创建具有id自增的表
/// </summary>
/// <param name="name">表名</param>
/// <param name="col">属性列</param>
/// <param name="colType">属性列类型</param>
/// <returns></returns>
public DataSet CreateTableAutoID(string name, string[] col, string[] colType)
{
if (col.Length != colType.Length)
{
throw new Exception("columns.Length != colType.Length");
}
string query = "CREATE TABLE " + name + " (" + col[0] + " " + colType[0] + " NOT NULL AUTO_INCREMENT";
for (int i = 1; i < col.Length; ++i)
{
query += ", " + col[i] + " " + colType[i];
}
query += ", PRIMARY KEY (" + col[0] + ")" + ")";
// Debug.Log(query);
return QuerySet(query);
}
/// <summary>
/// 查询
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="items">需要查询的列</param>
/// <param name="whereColName">查询的条件列</param>
/// <param name="operation">条件操作符</param>
/// <param name="value">条件的值</param>
/// <returns></returns>
public DataSet Select(string tableName, string[] items, string[] whereColName, string[] operation, string[] value)
{
if (whereColName.Length != operation.Length || operation.Length != value.Length)
{
throw new Exception("输入不正确：" + "col.Length != operation.Length != values.Length");
}
string query = "SELECT " + items[0];
for (int i = 1; i < items.Length; i++)
{
query += "," + items[i];
}
query += " FROM " + tableName + " WHERE " + " " + whereColName[0] + operation[0] + " '" + value[0] + "'";
for (int i = 1; i < whereColName.Length; i++)
{
query += " AND " + whereColName[i] + operation[i] + "' " + value[i] + "'";
}
return QuerySet(query);
}
/// <summary>
/// 删除
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="cols">条件：删除列</param>
/// <param name="colsvalues">删除该列属性值所在得行</param>
/// <returns></returns>
public DataSet Delete(string tableName, string[] cols, string[] colsvalues)
{
string query = "DELETE FROM " + tableName + " WHERE " + cols[0] + " = " + colsvalues[0];
for (int i = 1; i < colsvalues.Length; ++i)
{
query += " or " + cols[i] + " = " + colsvalues[i];
}
// Debug.Log(query);
return QuerySet(query);
}
/// <summary>
/// 更新
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="cols">更新列</param>
/// <param name="colsvalues">更新的值</param>
/// <param name="selectkey">条件：列</param>
/// <param name="selectvalue">条件：值</param>
/// <returns></returns>
public DataSet UpdateInto(string tableName, string[] cols, string[] colsvalues, string selectkey, string selectvalue)
{
string query = "UPDATE " + tableName + " SET " + cols[0] + " = " + colsvalues[0];
for (int i = 1; i < colsvalues.Length; ++i)
{
query += ", " + cols[i] + " =" + colsvalues[i];
}
query += " WHERE " + selectkey + " = " + selectvalue + " ";
return QuerySet(query);
}
/// <summary>
/// 插入一条数据，包括所有，不适用自动累加ID。
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="values">插入值</param>
/// <returns></returns>
public DataSet InsertInto(string tableName, string[] values)
{
string query = "INSERT INTO " + tableName + " VALUES (" + "'" + values[0] + "'";
for (int i = 1; i < values.Length; ++i)
{
query += ", " + "'" + values[i] + "'";
}
query += ")";
// Debug.Log(query);
return QuerySet(query);
}
/// <summary>
/// 插入部分
/// </summary>
/// <param name="tableName">表名</param>
/// <param name="col">属性列</param>
/// <param name="values">属性值</param>
/// <returns></returns>
public DataSet InsertInto(string tableName, string[] col, string[] values)
{
if (col.Length != values.Length)
{
throw new Exception("columns.Length != colType.Length");
}
string query = "INSERT INTO " + tableName + " (" + col[0];
for (int i = 1; i < col.Length; ++i)
{
query += ", " + col[i];
}
query += ") VALUES (" + "'" + values[0] + "'";
for (int i = 1; i < values.Length; ++i)
{
query += ", " + "'" + values[i] + "'";
}
query += ")";
// Debug.Log(query);
return QuerySet(query);
}
/// <summary>
///
/// 执行Sql语句
/// </summary>
/// <param name="sqlString">sql语句</param>
/// <returns></returns>
public static DataSet QuerySet(string sqlString)
{
if (mySqlConnection.State == ConnectionState.Open)
{
DataSet ds = new DataSet();
try
{
MySqlDataAdapter mySqlDataAdapter = new MySqlDataAdapter(sqlString, mySqlConnection);
mySqlDataAdapter.Fill(ds);
}
catch (Exception e)
{
throw new Exception("SQL:" + sqlString + "/n" + e.Message.ToString());
}
finally
{
}
return ds;
}
return null;
}
public void Close()
{
if (mySqlConnection != null)
{
mySqlConnection.Close();
mySqlConnection.Dispose();
mySqlConnection = null;
}
}
}
}
using Assets;
using UnityEngine;
using System.Collections;
using System.Data;
using UnityEngine.UI;
public class Test : MonoBehaviour
{
public Text text;
void Start () {
SqlAccess sql = new SqlAccess();
// sql.CreateTableAutoID("jl", new string[] { "id", "name", "qq", "email", "blog" }, new string[] { "int", "text", "text", "text", "text" });
//sql.InsertInto("jl", new string[] { "name", "qq", "email", "blog" }, new string[] { "jianglei", "289187120", "jianglei@mail.com", "jianglei.com" });
// sql.InsertInto("jl", new string[] { "name", "qq", "email", "blog" }, new string[] { "lizhih", "34546546", "lizhih@mail.com", "lizhih.com" });
// sql.Delete("jl", new string[] {"id"}, new string[] {"2"});
DataSet ds=sql.Select("jl", new string[] { "name", "qq" }, new string[] { "id" }, new string[] { "=" }, new string[] { "1" });
if (ds!=null)
{
DataTable table = ds.Tables[0];
foreach (DataRow dataRow in table.Rows)
{
foreach (DataColumn dataColumn in table.Columns)
{
Debug.Log(dataRow[dataColumn]);
text.text += " "+dataRow[dataColumn].ToString();
}
}
}
sql.Close();
}
void Update () {
}
}
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