把数据行转换为相应的实体

/把数据行转换为相应的实体已关闭评论

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/// <summary>
        /// 把数据行转换为相应的实体
        /// </summary>
        /// <typeparam name="T">实体</typeparam>
        /// <param name="dataRow">数据行</param>
        /// <returns></returns>
        public static T DataRowToModel<T>(DataRow dataRow) where T : new()
        {
            // 返回值容器
            var model = new T();
 
            // 例外检查
            if (dataRow == null)
            {
                return model;
            }
 
            // Model属性
            var t = model.GetType();
            var properties = t.GetProperties();
 
            // 循环赋值
            foreach (var propertyInfo in properties)
            {
                // 属性名
                var propertyName = propertyInfo.Name;
 
                // 检查Model属性是否存在于列名中
                if (!dataRow.Table.Columns.Contains(propertyName))
                {
                    continue;
                }
 
                // 数据库为null时跳过
                if (dataRow[propertyName] == DBNull.Value)
                {
                    continue;
                }
 
                // 设置Model的值
                propertyInfo.SetValue(model, dataRow[propertyName]);
            }
 
            return model;
        }
    }

 

ConcurrentDictionary 类

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表示可由多个线程同时访问的键/值对的线程安全集合。 命名空间:   System.Collections.Co […]

Web API POST传参不要加参数名

/Web API POST传参不要加参数名已关闭评论

后端

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        // POST api/<controller>
        public string Post([FromBody]List<User> value)
        {
            StringBuilder sb = new StringBuilder();
 
            foreach (User user in value)
            {
                sb.AppendLine(user.Username);
            }
            return sb.ToString();
        }

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