SpringCache快取處理
阿新 • • 發佈：2020-07-29
轉載：
首先使用NuGet包管理器搜尋dapper安裝到你所要使用的專案中
直接上程式碼，有寫過dbhelper的看這個應該比較簡單
資料庫程式碼：無註釋這些是建立資料庫最基礎的
use master go create database DapperTest go use DapperTest go create table UserInfo( Id int primary key identity(1,1), LoginName nvarchar(20) null, LoginPWD nvarchar(20) null, URealName nvarchar(20) null, uStatus [int] NOT NULL, uRemark [nvarchar](max) NULL, uCreateTime [datetime] NOT NULL, ) insert into UserInfo values('admin','admin','admin',1,'admin的一天生活',2020-1-1) insert into UserInfo values('a','a','a',1,'admin的言論',2020-1-1) go update UserInfo set uStatus=0 where Id=1 go select* from UserInfo
Vs中的程式碼：
資料模型資料表對應的實體物件。
public class UserInfo
{
/// <summary>
/// 主鍵
/// </summary>
public int Id { get; set; }
/// <summary>
/// 使用者名稱
/// </summary>
public string LoginName { get; set; }
/// <summary>
/// 密碼
/// </summary>
public string LoginPWD { get; set; }
/// <summary>
/// 真實名字
/// </summary>
public string URealName { get; set; }
/// <summary>
/// 狀態，0表示正常，1表示刪除
/// </summary>
public int uStatus { get; set; }
/// <summary>
/// 評論
/// </summary>
public string uRemark { get; set; }
/// <summary>
/// 建立時間
/// </summary>
public DateTime uCreateTime { get; set; }
}
寫對應的增刪改查
public class DapperHelper { //第一種寫法 private readonly string sqlconnection = "Data Source=.;Initial Catalog=DapperTest;User Id=sa;Password=sa;"; //第二種寫法 private readonly string sqlcon = "server=.;database=DapperTest;uid=sa;pwd=sa;"; //第三種寫法在App.config中寫入 //獲取Sql Server的連線資料庫物件。SqlConnection public SqlConnection sqlCon() { SqlConnection sql = new SqlConnection(sqlconnection); sql.Open(); return sql; } /// <summary> /// 新增單條資料 /// </summary> /// <param name="user"></param> /// <returns></returns> public int InsertUserInser(UserInfo user) { using (var db=sqlCon()) { string query = "insert into UserInfo values(@LoginName,@LoginPWD,@URealName,@uStatus,@uRemark,@uCreateTime)"; return db.Execute(query, user); } } /// <summary> /// 新增多條資料 /// </summary> /// <param name="ulist"></param> /// <returns></returns> public int MultInsertUser(List<UserInfo> ulist) { using (var db = new SqlConnection(sqlconnection)) { string query = "insert into UserInfo values(@LoginName,@LoginPWD,@URealName,@uStatus,@uRemark,@uCreateTime)"; return db.Execute(query, ulist); } } /// <summary> /// 刪除 真刪除 可以增加一個偽刪除 /// </summary> /// <param name="Uid"></param> /// <returns></returns> public int UserDelete(int Uid) { using (var db = new SqlConnection(sqlcon)) { string query = "delete UserInfo where Id=@Uid"; var param = new DynamicParameters(); param.Add("Uid", Uid); return db.Execute(query, param); } } public int MultDeleteUser(List<UserInfo> ulist) { using (var db = new SqlConnection(sqlconnection)) { string query = "delete UserInfo where Id=@Id"; return db.Execute(query, ulist); } } /// <summary> /// 修改 /// </summary> /// <param name="user"></param> /// <returns></returns> public int UserUpdate(UserInfo user)//int Id { //@LoginName,@LoginPWD,@URealName,@uStatus,@uRemark,@uCreateTime using (var db = new SqlConnection(sqlconnection)) { //string query = $"update UserInfo set LoginName=@LoginName,LoginPWD=@LoginPWD,URealName=@URealName,uStatus=@uStatus,uRemark=@uRemark,uCreateTime=@uCreateTime, where Id={Id}"; string query = $"update UserInfo set LoginName=@LoginName,LoginPWD=@LoginPWD,URealName=@URealName,uStatus=@uStatus,uRemark=@uRemark,uCreateTime=@uCreateTime where Id=@Id"; return db.Execute(query, user); } } public List<UserInfo> GetAll() { using (var db = new SqlConnection(sqlconnection)) { string query = "select * from UserInfo"; return db.Query<UserInfo>(query).ToList(); } } /// <summary> /// 查詢指定的資料 /// </summary> /// <param name="uids">查詢條件</param> /// <returns></returns> public List<UserInfo> GetAllIn2(int Id) { using (var db = new SqlConnection(sqlconnection)) { string query = $"select * from UserInfo where Id={Id}"; return db.Query<UserInfo>(query).ToList(); } }
在main中呼叫測試的方法，和資料庫裡面的資料同步
class Program { public static DapperHelper db = new DapperHelper(); static void Main(string[] args) { //DapperHelper db = new DapperHelper(); //var data=db.InsertUserInser(new UserInfo() //{ // LoginName = "admin123", // LoginPWD = "admin123", // URealName = "張三", // uStatus = 0, // uRemark = "admin123發表的言論", // //時間格式轉換 // //uCreateTime = DateTime.Parse("2020-07-25") // uCreateTime=DateTime.Now //}); //已下兩種都是可以修改成功的 //int Id = int.Parse(Console.ReadLine()); //var data = db.UserUpdate(new UserInfo() //{ // LoginName = "admin123", // LoginPWD = "admin123", // URealName = "張三2", // uStatus = 0, // uRemark = "admin123發表的言論", // //時間格式轉換 // //uCreateTime = DateTime.Parse("2020-07-25") // uCreateTime = DateTime.Now, // Id=Id //}, Id); //int Id = int.Parse(Console.ReadLine()); //var data = db.UserUpdate(new UserInfo() //{ // LoginName = "admin123", // LoginPWD = "admin123", // URealName = "張三2", // uStatus = 0, // uRemark = "admin123發表的言論", // //時間格式轉換 // //uCreateTime = DateTime.Parse("2020-07-25") // uCreateTime = DateTime.Now, // Id = Id //}); //if (data > 0) //{ // Console.WriteLine("修改成功"); //} //檢視 //var data2 = db.GetAll(); //foreach (var item in data2) //{ // Console.WriteLine("使用者名稱："+item.URealName+" "+"賬號："+item.LoginName); //} //while (true) //{ // int Id = int.Parse(Console.ReadLine()); // var data3 = db.GetAllIn2(Id); // foreach (var item in data3) // { // Console.WriteLine("使用者名稱：" + item.URealName + " " + "賬號：" + item.LoginName); // } // //} //刪除 int Id = int.Parse(Console.ReadLine()); var data4 = db.UserDelete(Id); if (data4 > 0) { Console.WriteLine("刪除成功"); } } }