好久都没有写博客,最近工作中没有什么可写的,公司的项目是以业务为重,技术含量实在不咋的。这次sprint中有一个要求就是password必须一些规则,比如给你一些正则表达式必须满足几个,直接看效果吧
代码如下:
namespace System.ComponentModel.DataAnnotations { using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Runtime.CompilerServices; using Text.RegularExpressions; using Globalization; [AttributeUsage(AttributeTargets.Parameter | AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false)] public class MultipleRegularExpressionAttribute : ValidationAttribute, IClientValidatable { public MultipleRegularExpressionAttribute(string[] patterns,int minMatchNo) { if (patterns == null || patterns.Length < 1) { throw new ArgumentNullException("patterns"); } if (minMatchNo <= 0) { throw new ArgumentException("minValidCount must bigger than 0"); } MinMatchNo = minMatchNo; Regexs = new Regex[patterns.Length]; for (int i = 0; i < patterns.Length; i++) { Regexs[i] = new Regex(patterns[i]); } } public override string FormatErrorMessage(string name) { if (!string.IsNullOrEmpty(ErrorMessage)) { return ErrorMessage; } string message = "the input value must match " + MinMatchNo.ToString() + " below Regex:"; foreach (var item in Regexs) { message += " ""+item.ToString() + "" ;"; } return message; } public override bool IsValid(object value) { string str = Convert.ToString(value, CultureInfo.CurrentCulture); if (string.IsNullOrEmpty(str)) { return true; } int validedCount = 0; foreach (var reg in Regexs) { Match match = reg.Match(str); if ((match.Success && (match.Index == 0)) && (match.Length == str.Length)) validedCount += 1; } return validedCount>= MinMatchNo; } private Regex[] Regexs { set; get; } private int MinMatchNo { set; get; } public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) { var validationRule = new ModelClientValidationRule { ErrorMessage = FormatErrorMessage(metadata.DisplayName), ValidationType = "mulregular", }; validationRule.ValidationParameters.Add("minmatchno", MinMatchNo); validationRule.ValidationParameters.Add("regexs", string.Join(",",Regexs.Select(x=>x.ToString()).ToArray())); yield return validationRule; } } }
<script type="text/javascript" src="~/Scripts/jquery-1.10.2.js"></script> <script type="text/javascript" src="~/Scripts/jquery.validate.js"></script> <script type="text/javascript" src="~/Scripts/jquery.validate.unobtrusive.js"></script> <script type="text/javascript"> $(function () { //第一个参数是jquery验证扩展方法名 //第二个参数与rule.ValidationParameters["XXX"]中的key对应 //option是指ModelClientValidationRule对象实例 jQuery.validator.unobtrusive.adapters.add('mulregular', ['regexs', 'minmatchno'], function (options) { options.rules["mulregular"] = { regexs: options.params.regexs, minmatchno: options.params.minmatchno }; if (options.message) { options.messages['mulregular'] = options.message; } }); //意思是表单值为空时也能通过验证 //但,如果表单有值,就必须满足||后面的条件,否则返回false jQuery.validator.addMethod('mulregular', function (value, element, param) { if (this.optional(element)) { return true; } var regs = param["regexs"].split(","); var minmatchno = param["minmatchno"] - 0; for (var i = 0; i < regs.length; i++) { var match = new RegExp(regs[i]).exec(value); if (match && (match.index === 0) && (match[0].length === value.length)) { minmatchno -= 1; } } return minmatchno <= 0; }); }); </script>
[Required]
[DataType(DataType.Password)]
[Display(Name = "Password")]
[MultipleRegularExpression( new string[] {".*[a-z]+.*",".*[A-Z]+.*",".*\d+.*",".*(\W+|_+).*" },3)]
public string Password { get; set; }
这里有几个注意的地方:
1.GetClientValidationRules 方法里面ValidationType和ValidationParameters的key只能是全部小写
2.只有在 jQuery.validator.unobtrusive.adapters 方法中定义了的参数 ['regexs', 'minmatchno'] 才能在 jQuery.validator.addMethod 对应的方法mulregular 中使用。
网上的案例已经有很多了,大家也可以参考:
http://www.cnblogs.com/yehuabin/archive/2012/09/23/unobtrusive-validation.html
http://www.cnblogs.com/xcsn/p/4666718.html
http://www.cnblogs.com/xfrog/archive/2011/01/25/1944867.html