using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Data;
using System.Globalization;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Security.Cryptography;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
namespace Core.Util
{
public static partial class Extention
{
/// <summary>
/// 转为bool
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static bool ToBool(this string str)
{
return bool.Parse(str);
}
/// <summary>
/// 转为字节数组
/// </summary>
/// <param name="base64Str">base64字符串</param>
/// <returns></returns>
public static byte[] ToBytes_FromBase64Str(this string base64Str)
{
return Convert.FromBase64String(base64Str);
}
/// <summary>
/// 转换为MD5加密后的字符串(默认加密为32位)
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string ToMD5String(this string str)
{
MD5 md5 = MD5.Create();
byte[] inputBytes = Encoding.UTF8.GetBytes(str);
byte[] hashBytes = md5.ComputeHash(inputBytes);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < hashBytes.Length; i++)
{
sb.Append(hashBytes[i].ToString("x2"));
}
md5.Dispose();
return sb.ToString();
}
/// <summary>
/// 转换为MD5加密后的字符串(16位)
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string ToMD5String16(this string str)
{
return str.ToMD5String().Substring(8, 16);
}
/// <summary>
/// Base64加密
/// 注:默认采用UTF8编码
/// </summary>
/// <param name="source">待加密的明文</param>
/// <returns>加密后的字符串</returns>
public static string Base64Encode(this string source)
{
return Base64Encode(source, Encoding.UTF8);
}
/// <summary>
/// Base64加密
/// </summary>
/// <param name="source">待加密的明文</param>
/// <param name="encoding">加密采用的编码方式</param>
/// <returns></returns>
public static string Base64Encode(this string source, Encoding encoding)
{
string encode = string.Empty;
byte[] bytes = encoding.GetBytes(source);
try
{
encode = Convert.ToBase64String(bytes);
}
catch
{
encode = source;
}
return encode;
}
/// <summary>
/// Base64解密
/// 注:默认使用UTF8编码
/// </summary>
/// <param name="result">待解密的密文</param>
/// <returns>解密后的字符串</returns>
public static string Base64Decode(this string result)
{
return Base64Decode(result, Encoding.UTF8);
}
/// <summary>
/// Base64解密
/// </summary>
/// <param name="result">待解密的密文</param>
/// <param name="encoding">解密采用的编码方式,注意和加密时采用的方式一致</param>
/// <returns>解密后的字符串</returns>
public static string Base64Decode(this string result, Encoding encoding)
{
string decode = string.Empty;
byte[] bytes = Convert.FromBase64String(result);
try
{
decode = encoding.GetString(bytes);
}
catch
{
decode = result;
}
return decode;
}
/// <summary>
/// Base64Url编码
/// </summary>
/// <param name="text">待编码的文本字符串</param>
/// <returns>编码的文本字符串</returns>
public static string Base64UrlEncode(this string text)
{
var plainTextBytes = Encoding.UTF8.GetBytes(text);
var base64 = Convert.ToBase64String(plainTextBytes).Replace('+', '-').Replace('/', '_').TrimEnd('=');
return base64;
}
/// <summary>
/// Base64Url解码
/// </summary>
/// <param name="base64UrlStr">使用Base64Url编码后的字符串</param>
/// <returns>解码后的内容</returns>
public static string Base64UrlDecode(this string base64UrlStr)
{
base64UrlStr = base64UrlStr.Replace('-', '+').Replace('_', '/');
switch (base64UrlStr.Length % 4)
{
case 2:
base64UrlStr += "==";
break;
case 3:
base64UrlStr += "=";
break;
}
var bytes = Convert.FromBase64String(base64UrlStr);
return Encoding.UTF8.GetString(bytes);
}
/// <summary>
/// 计算SHA1摘要
/// 注:默认使用UTF8编码
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static byte[] ToSHA1Bytes(this string str)
{
return str.ToSHA1Bytes(Encoding.UTF8);
}
/// <summary>
/// 计算SHA1摘要
/// </summary>
/// <param name="str">字符串</param>
/// <param name="encoding">编码</param>
/// <returns></returns>
public static byte[] ToSHA1Bytes(this string str, Encoding encoding)
{
SHA1 sha1 = new SHA1CryptoServiceProvider();
byte[] inputBytes = encoding.GetBytes(str);
byte[] outputBytes = sha1.ComputeHash(inputBytes);
return outputBytes;
}
/// <summary>
/// 转为SHA1哈希加密字符串
/// 注:默认使用UTF8编码
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static string ToSHA1String(this string str)
{
return str.ToSHA1String(Encoding.UTF8);
}
/// <summary>
/// 转为SHA1哈希
/// </summary>
/// <param name="str">字符串</param>
/// <param name="encoding">编码</param>
/// <returns></returns>
public static string ToSHA1String(this string str, Encoding encoding)
{
byte[] sha1Bytes = str.ToSHA1Bytes(encoding);
string resStr = BitConverter.ToString(sha1Bytes);
return resStr.Replace("-", "").ToLower();
}
/// <summary>
/// SHA256加密
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static string ToSHA256String(this string str)
{
byte[] bytes = Encoding.UTF8.GetBytes(str);
byte[] hash = SHA256.Create().ComputeHash(bytes);
StringBuilder builder = new StringBuilder();
for (int i = 0; i < hash.Length; i++)
{
builder.Append(hash[i].ToString("x2"));
}
return builder.ToString();
}
/// <summary>
/// HMACSHA256算法
/// </summary>
/// <param name="text">内容</param>
/// <param name="secret">密钥</param>
/// <returns></returns>
public static string ToHMACSHA256String(this string text, string secret)
{
secret = secret ?? "";
byte[] keyByte = Encoding.UTF8.GetBytes(secret);
byte[] messageBytes = Encoding.UTF8.GetBytes(text);
using (var hmacsha256 = new HMACSHA256(keyByte))
{
byte[] hashmessage = hmacsha256.ComputeHash(messageBytes);
return Convert.ToBase64String(hashmessage).Replace('+', '-').Replace('/', '_').TrimEnd('=');
}
}
/// <summary>
/// string转int
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static int ToInt(this string str)
{
str = str.Replace("\0", "");
if (string.IsNullOrEmpty(str))
return 0;
return Convert.ToInt32(str);
}
/// <summary>
/// string转long
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static long ToLong(this string str)
{
str = str.Replace("\0", "");
if (string.IsNullOrEmpty(str))
return 0;
return Convert.ToInt64(str);
}
/// <summary>
/// 二进制字符串转为Int
/// </summary>
/// <param name="str">二进制字符串</param>
/// <returns></returns>
public static int ToInt_FromBinString(this string str)
{
return Convert.ToInt32(str, 2);
}
/// <summary>
/// 将16进制字符串转为Int
/// </summary>
/// <param name="str">数值</param>
/// <returns></returns>
public static int ToInt0X(this string str)
{
int num = Int32.Parse(str, NumberStyles.HexNumber);
return num;
}
/// <summary>
/// 转换为double
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static double ToDouble(this string str)
{
return Convert.ToDouble(str);
}
/// <summary>
/// string转byte[]
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static byte[] ToBytes(this string str)
{
return Encoding.Default.GetBytes(str);
}
/// <summary>
/// string转byte[]
/// </summary>
/// <param name="str">字符串</param>
/// <param name="theEncoding">需要的编码</param>
/// <returns></returns>
public static byte[] ToBytes(this string str, Encoding theEncoding)
{
return theEncoding.GetBytes(str);
}
/// <summary>
/// 将16进制字符串转为Byte数组
/// </summary>
/// <param name="str">16进制字符串(2个16进制字符表示一个Byte)</param>
/// <returns></returns>
public static byte[] To0XBytes(this string str)
{
List<byte> resBytes = new List<byte>();
for (int i = 0; i < str.Length; i = i + 2)
{
string numStr = $@"{str[i]}{str[i + 1]}";
resBytes.Add((byte)numStr.ToInt0X());
}
return resBytes.ToArray();
}
/// <summary>
/// 将ASCII码形式的字符串转为对应字节数组
/// 注:一个字节一个ASCII码字符
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static byte[] ToASCIIBytes(this string str)
{
return str.ToList().Select(x => (byte)x).ToArray();
}
/// <summary>
/// 转换为日期格式
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static DateTime ToDateTime(this string str)
{
return Convert.ToDateTime(str);
}
/// <summary>
/// 将Json字符串反序列化为对象
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="jsonStr">Json字符串</param>
/// <returns></returns>
public static T ToObject<T>(this string jsonStr)
{
return JsonConvert.DeserializeObject<T>(jsonStr);
}
/// <summary>
/// 删除Json字符串中键中的@符号
/// </summary>
/// <param name="jsonStr">json字符串</param>
/// <returns></returns>
public static string RemoveAt(this string jsonStr)
{
Regex reg = new Regex("\"@([^ \"]*)\"\\s*:\\s*\"(([^ \"]+\\s*)*)\"");
string strPatten = "\"$1\":\"$2\"";
return reg.Replace(jsonStr, strPatten);
}
/// <summary>
/// 将Json字符串反序列化为对象
/// </summary>
/// <param name="jsonStr">json字符串</param>
/// <param name="type">对象类型</param>
/// <returns></returns>
public static object ToObject(this string jsonStr, Type type)
{
return JsonConvert.DeserializeObject(jsonStr, type);
}
/// <summary>
/// 将XML字符串反序列化为对象
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="xmlStr">XML字符串</param>
/// <returns></returns>
public static T XmlStrToObject<T>(this string xmlStr)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlStr);
string jsonJsonStr = JsonConvert.SerializeXmlNode(doc);
return JsonConvert.DeserializeObject<T>(jsonJsonStr);
}
/// <summary>
/// 将XML字符串反序列化为对象
/// </summary>
/// <param name="xmlStr">XML字符串</param>
/// <returns></returns>
public static JObject XmlStrToJObject(this string xmlStr)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlStr);
string jsonJsonStr = JsonConvert.SerializeXmlNode(doc);
return JsonConvert.DeserializeObject<JObject>(jsonJsonStr);
}
/// <summary>
/// 将Json字符串转为List'T'
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="jsonStr"></param>
/// <returns></returns>
public static List<T> ToList<T>(this string jsonStr)
{
return string.IsNullOrEmpty(jsonStr) ? null : JsonConvert.DeserializeObject<List<T>>(jsonStr);
}
/// <summary>
/// 将Json字符串转为DataTable
/// </summary>
/// <param name="jsonStr">Json字符串</param>
/// <returns></returns>
public static DataTable ToDataTable(this string jsonStr)
{
return jsonStr == null ? null : JsonConvert.DeserializeObject<DataTable>(jsonStr);
}
/// <summary>
/// 将Json字符串转为JObject
/// </summary>
/// <param name="jsonStr">Json字符串</param>
/// <returns></returns>
public static JObject ToJObject(this string jsonStr)
{
return jsonStr == null ? JObject.Parse("{}") : JObject.Parse(jsonStr.Replace(" ", ""));
}
/// <summary>
/// 将Json字符串转为JArray
/// </summary>
/// <param name="jsonStr">Json字符串</param>
/// <returns></returns>
public static JArray ToJArray(this string jsonStr)
{
return jsonStr == null ? JArray.Parse("[]") : JArray.Parse(jsonStr.Replace(" ", ""));
}
/// <summary>
/// json数据转实体类,仅仅应用于单个实体类,速度非常快
/// </summary>
/// <typeparam name="T">泛型参数</typeparam>
/// <param name="json">json字符串</param>
/// <returns></returns>
public static T ToEntity<T>(this string json)
{
if (json == null || json == "")
return default(T);
Type type = typeof(T);
object obj = Activator.CreateInstance(type, null);
foreach (var item in type.GetProperties())
{
PropertyInfo info = obj.GetType().GetProperty(item.Name);
string pattern;
pattern = "\"" + item.Name + "\":\"(.*?)\"";
foreach (Match match in Regex.Matches(json, pattern))
{
switch (item.PropertyType.ToString())
{
case "System.String": info.SetValue(obj, match.Groups[1].ToString(), null); break;
case "System.Int32": info.SetValue(obj, match.Groups[1].ToString().ToInt(), null); ; break;
case "System.Int64": info.SetValue(obj, Convert.ToInt64(match.Groups[1].ToString()), null); ; break;
case "System.DateTime": info.SetValue(obj, Convert.ToDateTime(match.Groups[1].ToString()), null); ; break;
}
}
}
return (T)obj;
}
/// <summary>
/// 转为首字母大写
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static string ToFirstUpperStr(this string str)
{
return str.Substring(0, 1).ToUpper() + str.Substring(1);
}
/// <summary>
/// 转为首字母小写
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static string ToFirstLowerStr(this string str)
{
return str.Substring(0, 1).ToLower() + str.Substring(1);
}
/// <summary>
/// 转为网络终结点IPEndPoint
/// </summary>=
/// <param name="str">字符串</param>
/// <returns></returns>
public static IPEndPoint ToIPEndPoint(this string str)
{
IPEndPoint iPEndPoint = null;
try
{
string[] strArray = str.Split(':').ToArray();
string addr = strArray[0];
int port = Convert.ToInt32(strArray[1]);
iPEndPoint = new IPEndPoint(IPAddress.Parse(addr), port);
}
catch
{
iPEndPoint = null;
}
return iPEndPoint;
}
/// <summary>
/// 将枚举类型的文本转为枚举类型
/// </summary>
/// <typeparam name="TEnum">枚举类型</typeparam>
/// <param name="enumText">枚举文本</param>
/// <returns></returns>
public static TEnum ToEnum<TEnum>(this string enumText) where TEnum : struct
{
Enum.TryParse(enumText, out TEnum value);
return value;
}
/// <summary>
/// 转为MurmurHash
/// </summary>
/// <param name="str">字符串</param>
/// <returns></returns>
public static uint ToMurmurHash(this string str)
{
return MurmurHash2.Hash(Encoding.UTF8.GetBytes(str));
}
/// <summary>
/// 是否为弱密码
/// 注:密码必须包含数字、小写字母、大写字母和其他符号中的两种并且长度大于8
/// </summary>
/// <param name="pwd">密码</param>
/// <returns></returns>
public static bool IsWeakPwd(this string pwd)
{
if (pwd.IsNullOrEmpty())
throw new Exception("pwd不能为空");
string pattern = "(^[0-9]+$)|(^[a-z]+$)|(^[A-Z]+$)|(^.{0,8}$)";
if (Regex.IsMatch(pwd, pattern))
return true;
else
return false;
}
}
}
(精华)2020年6月27日 C#类库 string(扩展方法)
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