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控制器

using Mvc_ceshi.ServiceModels;using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using Newtonsoft.Json;using System.Text;namespace Mvc_ceshi.Controllers{    public class ZhuCeController : Controller    {        // GET: ZhuCe        public ActionResult Index()        {            return View();        }        //注册页面        public ActionResult Register()        {            return View();        }        //错误处理        public ActionResult UserRegister(User_ServiceModels user_Serviceodels)        {            //验证通过            if (ModelState.IsValid)            {                return View("Index");            }            else            {                return View("Register");            }        }        /// 
        /// ajax请求，json返回        /// 
        ///         /// 
           public String UserRegister_json(User_ServiceModels user_Serviceodels)        {                       //验证不通过            if (!ModelState.IsValid)            {                StringBuilder msg = new StringBuilder();                msg.Append("{");                msg.Append("\"status\":\""+false+"\",");                msg.Append("\"error\":[{");                string error = string.Empty;                int i = 0;                foreach (var key in ModelState.Keys)                {                    var state = ModelState[key];                    if (state.Errors.Any())                    {                        error = state.Errors.First().ErrorMessage;                        msg.Append("\""+key+"\"" + ":" + "\""+error+"\"");                        //是否加逗号                        if (i < ModelState.Keys.Count - 1)                        {                            msg.Append(",");                        }                        //break;                    }                    i++;                }                msg.Append("}]");                 msg.Append("}");                 return  msg.ToString();            }            //验证通过            else            {                StringBuilder msg = new StringBuilder();                msg.Append("{");                msg.Append("\"status\":\""+true+"\"");                msg.Append("}");                 return msg.ToString();            }        }    }}

业务模型类

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.ComponentModel;using System.ComponentModel.DataAnnotations;namespace Mvc_ceshi.ServiceModels{    /// 
    /// 业务模型类    /// 
    public class User_ServiceModels    {        /// 
        /// ID        /// 
        public int UserId { get; set; }        /// 
        /// 账户        /// 
        [DisplayName("账号")] //显示名        [Required(ErrorMessage ="{0}不能为空")]//必填项        [StringLength(12,MinimumLength =6,ErrorMessage ="{0}长度只能为{2}至{1}")]//字符串长度验证；{0}:显示名，{1}：最大长度，{2}最小长度        public string Account { get; set; }        /// 
        /// 密码        /// 
        [DisplayName("密码")]         [Required(ErrorMessage ="{0}不能为空")]        [Compare("Password2",ErrorMessage ="{0}两次密码不一致")]        public string Password1 { get; set; }        /// 
        /// 密码2        /// 
        public string Password2 { get; set; }        /// 
        /// 年龄        /// 
        [DisplayName("年龄")]         [Required(ErrorMessage ="{0}不能为空")]        [Range(16,50,ErrorMessage ="{0}只能在{1}和{2}之间")]//数字范围（支持小数点）        public int Age { get; set; }        /// 
        /// 邮箱        /// 
        [DisplayName("邮箱")]         [Required(ErrorMessage ="{0}不能为空")]        [RegularExpression(@"\w+@\w+.\w+",ErrorMessage ="{0}格式不正确")]//正则表达式验证        public string Email { get; set; }    }}

静态页面表单，请求JSON返回

    
   
        
    
                 
      
                       
用户注册
                  
                  
                       
账户
                       
                       
                  
                  
                       
密码
                       
                       
                  
                  
                       
确认密码
                       
                       
                  
                  
                       
年龄
                       
                       
                  
                  
                       
邮箱
                       
                       
                  
       
                       
                  
     
    
    
   

结果返回：

{"status":"False","error":[{"Account":"账号不能为空","Password1":"密码不能为空","Age":"年龄不能为空","Email":"邮箱不能为空"}]}

静态页面表单，直接请求，返回

    
   
        
    
                 
      
                       
用户注册
                  
                  
                       
账户
                       
                       
@Html.ValidationMessage("Account")
                  
                  
                       
密码
                       
                       
                  
                  
                       
确认密码
                       
                       
@Html.ValidationMessage("Password1")
                  
                  
                       
年龄
                       
                       
@Html.ValidationMessage("Age")
                  
                  
                       
邮箱
                       
                       
@Html.ValidationMessage("Email")
                  
       
                       
                  
     
    
    
   

返回结果展示

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