/// <summary> /// 得到一个对象实体 /// </summary> public Dapper.Model.user_point_log GetModel(int id) { StringBuilder strSql = new StringBuilder(); StringBuilder str1 = new StringBuilder(); Dapper.Model.user_point_log model = new Dapper.Model.user_point_log(); //利用反射获得属性的所有公共属性 PropertyInfo[] pros = model.GetType().GetProperties(); foreach (PropertyInfo p in pros) { str1.Append(p.Name + ",");//拼接字段 } strSql.Append("select top 1 " + str1.ToString().Trim(',')); strSql.Append(" from " + databaseprefix + "user_point_log"); strSql.Append(" where id=@id"); SqlParameter[] parameters = { new SqlParameter("@id", SqlDbType.Int, 4) }; parameters[0].Value = id; DataTable dt = DbHelperSQL.Query(strSql.ToString(), parameters).Tables[0]; if (dt.Rows.Count > 0) { return(DataRowToModel(dt.Rows[0])); } else { return(null); } }
/// <summary> /// 将对象转换实体 /// </summary> public Dapper.Model.user_point_log DataRowToModel(DataRow row) { Dapper.Model.user_point_log model = new Dapper.Model.user_point_log(); if (row != null) { //利用反射获得属性的所有公共属性 Type modelType = model.GetType(); for (int i = 0; i < row.Table.Columns.Count; i++) { //查找实体是否存在列表相同的公共属性 PropertyInfo proInfo = modelType.GetProperty(row.Table.Columns[i].ColumnName); if (proInfo != null && row[i] != DBNull.Value) { proInfo.SetValue(model, row[i], null);//用索引值设置属性值 } } } return(model); }
/// <summary> /// 增加一条数据 /// </summary> public int Add(Dapper.Model.user_point_log model, bool is_upgrade) { using (SqlConnection conn = new SqlConnection(DbHelperSQL.connectionString)) { conn.Open();//打开数据连接 using (SqlTransaction trans = conn.BeginTransaction()) { try { #region 主表信息========================== StringBuilder strSql = new StringBuilder(); StringBuilder str1 = new StringBuilder(); //数据字段 StringBuilder str2 = new StringBuilder(); //数据参数 //利用反射获得属性的所有公共属性 PropertyInfo[] pros = model.GetType().GetProperties(); List <SqlParameter> paras = new List <SqlParameter>(); strSql.Append("insert into " + databaseprefix + "user_point_log("); foreach (PropertyInfo pi in pros) { //如果不是主键则追加sql字符串 if (!pi.Name.Equals("id")) { //判断属性值是否为空 if (pi.GetValue(model, null) != null) { str1.Append(pi.Name + ","); //拼接字段 str2.Append("@" + pi.Name + ","); //声明参数 paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值 } } } strSql.Append(str1.ToString().Trim(',')); strSql.Append(") values ("); strSql.Append(str2.ToString().Trim(',')); strSql.Append(") "); strSql.Append(";select @@IDENTITY;"); object obj = DbHelperSQL.GetSingle(conn, trans, strSql.ToString(), paras.ToArray());//带事务 model.id = Convert.ToInt32(obj); #endregion #region 用户表信息======================== StringBuilder strSql1 = new StringBuilder(); strSql1.Append("update " + databaseprefix + "users set point=point+" + model.value); if (model.value > 0 && is_upgrade) { strSql1.Append(",exp=exp+" + model.value); } strSql1.Append(" where id=@id"); SqlParameter[] parameters1 = { new SqlParameter("@id", SqlDbType.Int, 4) }; parameters1[0].Value = model.user_id; DbHelperSQL.ExecuteSql(conn, trans, strSql1.ToString(), parameters1); #endregion trans.Commit();//提交事务 } catch { trans.Rollback();//回滚事务 return(0); } } } return(model.id); }