unity PC 、安卓修改数据库文件
详情参考https://www.cnblogs.com/xiaoyulong/p/8686886.html
MySqlAccess脚本是别人封装好的
using MySql.Data.MySqlClient;
using System;
using System.Data;
public class MySqlAccess
{
public static MySqlConnection mySqlConnection;//连接类对象
private static string host; //IP地址。如果只是在本地的话，写localhost就可以。
private static string id; //用户名。
private static string pwd; //密码。
private static string dataBase; //数据库名称。
///
/// 构造方法
///
/// IP地址
/// 用户名
/// 密码
/// 数据库名称
public MySqlAccess(string _host, string _id, string _pwd, string _dataBase)
{
host = _host;
id = _id;
pwd = _pwd;
dataBase = _dataBase;
OpenSql();
}
///
/// 打开数据库
///
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 mySqlString = string.Format("Database={0};Data Source={1};User Id={2};Password={3};CharSet=utf8", dataBase, host, id, pwd, "3306");
mySqlConnection = new MySqlConnection(mySqlString);
mySqlConnection.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());
}
}
///
/// 创建表
///
/// 表名
/// 属性列
/// 属性类型
///
/// 创建具有id自增的表
///
/// 表名
/// 属性列
/// 属性列类型
///
/// 插入一条数据，包括所有，不适用自动累加ID。
///
/// 表名
/// 插入值
///
/// 插入部分ID
///
/// 表名
/// 属性列
/// 属性值
///
/// 查询表数据
///
/// 表名
/// 需要查询的列
/// 查询的条件列
/// 条件操作符
/// 条件的值
///
/// 更新表数据
///
/// 表名
/// 更新列
/// 更新的值
/// 条件：列
/// 条件：值
///
/// 删除表数据
///
/// 表名
/// 条件：删除列
/// 删除该列属性值所在得行
///
/// 释放
///
public void Close()
{
if (mySqlConnection != null)
{
mySqlConnection.Close();
mySqlConnection.Dispose();
mySqlConnection = null;
}
}
///
/// 执行Sql语句
///
/// sql语句
/// Sql_test是测试用的
using UnityEngine;
using System.Data;
using UnityEngine.UI;
public class Sql_test : MonoBehaviour
{
[Header("添加")]
public InputField date_city_add;
public InputField date_school_add;
public InputField date_totels_add;
public InputField ndate_students_add;
//[Header("删除")]
//public InputField date_city_dele;
//public InputField date_school_dele;
//public InputField date_totels_dele;
//public InputField ndate_students_dele;
//[Header("修改")]
//public InputField date_id_change;
//public InputField date_city_change;
//public InputField date_school_change;
//public InputField date_totels_change;
//public InputField ndate_students_change;
//[Header("查看")]
//public InputField date_city_look;
//public InputField date_school_look;
//public InputField date_totels_look;
//public InputField ndate_students_look;
public MySqlAccess mySql;
//添加
public Button add_button;
删除
//public Button delet_button;
提交修改
//public Button submit_button;
查看
//public Button look_button;
private void Start()
{
mySql = new MySqlAccess("IP", "用户名", "密码", "数据库名称");
//change_button.onClick.AddListener(Update_demo(string id, string city, string school, string hotels, string students));
mySql.CreateTableAutoID("test", new string[] { "id", "city", "school", "hotels", "students" }, new string[] { "int", "text", "text", "int" , "int" });
add_button.onClick.AddListener(delegate () { Add_demo("北京", "北大", "45", "90"); });
//mySql.InsertInto("tableTest", new string[] { "name", "age" }, new string[] { "wanger", "28" });
//mySql.InsertInto("tableTest", new string[] { "name", "age" }, new string[] { "liger", "2558" });
// mySql.UpdateInto("tableTest", new string[] { "name", "age" }, new string[] { "name", "10" },"id","1");
//mySql.Delete("tableTest", new string[] { "name", "age" }, new string[] { "'liger'", "10" });
//mySql.InsertInto("Test", new string[] { "name", "age" }, new string[] { "李四", "20" });
//for (int i = 1; i < 3; i++)
//{
// DataSet ds = mySql.Select("tableTest", new string[] { "name", "age" }, new string[] { "id" }, new string[] { "=" }, new string[] { i.ToString() });
// if (ds != null)
// {
// DataTable table = ds.Tables[0];
// foreach (DataRow row in table.Rows)
// {
// foreach (DataColumn column in table.Columns)
// {
// Debug.Log(row[column]);
// }
// }
// }
//}
//mySql.Close();
}
//数据更新
private void Update()
{
if (Input.GetKeyDown(KeyCode.Space))
{
string str =string.Format("{0}", date_city_add.GetComponent().text);
string str1 =string.Format("{0}", date_school_add.GetComponent().text);
Add_demo(str, str1, "45", "90");
}
}
//更新
public void Update_demo(string id,string city,string school,string hotels,string students)
{
mySql.UpdateInto("tableTest", new string[] { "id", "city" , "school", "hotels", "students" }, new string[] { city, school, hotels, students }, "id", id);
mySql.Close();
}
//删除 需要''
public void Deleted_demo(string city, string school, string hotels, string students)
{
mySql.Delete("tableTest", new string[] { "city", "school", "hotels", "students" }, new string[] { city, school, hotels, students });
mySql.Close();
}
//添加 不需要''
public void Add_demo(string city, string school, string hotels, string students)
{
mySql.InsertInto("test", new string[] { "city", "school", "hotels", "students" }, new string[] { city, school , hotels , students });
mySql.Close();
}
//查询
public void Select_demo(int number, string city, string school, string hotels, string students)
{
for (int i = 1; i < number; i++)
{
DataSet ds = mySql.Select("tableTest", new string[] { "city", "school", "hotels", "students" }, new string[] { "id" }, new string[] { "=" }, new string[] { i.ToString() });
if (ds != null)
{
DataTable table = ds.Tables[0];
foreach (DataRow row in table.Rows)
{
foreach (DataColumn column in table.Columns)
{
Debug.Log(row[column]);
}
}
}
}
mySql.Close();
}
}