125 lines
3.7 KiB
C#
125 lines
3.7 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.Encodings.Web;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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using System.Text.RegularExpressions;
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using System.Text.Unicode;
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using System.Xml.Serialization;
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namespace SimApi.Helpers;
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public static class SimApiUtil
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{
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/// <summary>
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/// 当前CST时间
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/// </summary>
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public static DateTime CstNow => DateTime.UtcNow.AddHours(8);
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/// <summary>
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/// JSON序列化常规选项
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/// </summary>
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public static JsonSerializerOptions JsonOption => new()
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{
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// ReferenceHandler = ReferenceHandler.Preserve,
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Encoder = JavaScriptEncoder.Create(UnicodeRanges.All),
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PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
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// DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
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};
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/// <summary>
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/// 当前秒级时间戳
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/// </summary>
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public static double TimestampNow => (DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalSeconds;
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/// <summary>
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/// 检测手机号是否正确
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/// </summary>
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/// <param name="cell">手机号码</param>
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/// <returns></returns>
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public static bool CheckCell(string cell)
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{
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var regex = new Regex("^1[3456789]\\d{9}$");
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return regex.IsMatch(cell);
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}
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/// <summary>
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/// MD5加密字符串
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/// </summary>
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/// <param name="source">源字符串</param>
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/// <param name="mode">加密结果"x2"结果为32位,"x3"结果为48位,"x4"结果为64位</param>
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/// <returns></returns>
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public static string Md5(string source, string mode = "x2")
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{
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var sourceBytes = Encoding.UTF8.GetBytes(source);
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var result = MD5.HashData(sourceBytes);
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var stringBuilder = new StringBuilder(40);
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foreach (var t in result)
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{
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stringBuilder.Append(t.ToString(mode));
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}
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return stringBuilder.ToString();
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}
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/// <summary>
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/// sha1加密字符串
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/// </summary>
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/// <param name="source">源字符串</param>
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/// <param name="mode">加密结果"x2"结果为32位,"x3"结果为48位,"x4"结果为64位</param>
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/// <returns></returns>
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public static string Sha1(string source, string mode = "x2")
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{
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var hash = SHA1.HashData(Encoding.UTF8.GetBytes(source));
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var sb = new StringBuilder(hash.Length * 2);
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foreach (var b in hash)
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{
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sb.Append(b.ToString(mode));
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}
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return sb.ToString();
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}
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/// <summary>
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/// 将XML字符串序列化为对象
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/// </summary>
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/// <param name="source"></param>
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/// <typeparam name="T"></typeparam>
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/// <returns></returns>
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public static T XmlDeserialize<T>(string source)
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{
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var xmlConvertor = new XmlSerializer(typeof(T));
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using var reader = new StringReader(source);
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return (T)xmlConvertor.Deserialize(reader)!;
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}
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/// <summary>
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/// 将对象序列化成JSON （控制台输出中文不会被编码）
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public static string Json(object? obj)
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{
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return JsonSerializer.Serialize(obj, JsonOption);
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}
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/// <summary>
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/// 分页
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/// </summary>
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/// <param name="query"></param>
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/// <param name="page">页码</param>
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/// <param name="count">每页数量</param>
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/// <typeparam name="T"></typeparam>
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/// <returns></returns>
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public static IQueryable<T> Paginate<T>(this IQueryable<T> query, int page, int count)
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{
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if (page < 1)
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page = 1;
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if (count <= 0)
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count = 10;
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return query.Skip((page - 1) * count).Take(count);
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}
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} |