JQuery验证和数据库调用

我正在使用JörnZaefferer的JQuery验证，但我需要进行一些数据库调用来验证某些字段（例如检查用户名是否唯一）。这是可能使用这个插件，如果是这样，有人有一些语法的例子吗？这里是我当前的代码：JQuery验证和数据库调用

$("form").validate({ 
      rules: { 
       txtUserName: { 
        required: true, 
        minlength: 4 
       }, 
       txtPassword: { 
        required: true 
       }, 
       txtConfirmPassword: { 
        required: true, 
        equalTo: "#txtPassword" 
       }, 
       txtEmailAddress: { 
       required: true, 
       email: true 
       }, 
       txtTelephoneNumber: { 
        required: true, 
        number: true 
       } 
      }, 
      messages: { 
       txtUserName: { 
        required: "Please enter a User Name", 
        minlength: "User Name must be at least 4 characters" 
       }, 
       txtPassword: { 
        required: "Please enter a Password" 
       }, 
       txtConfirmPassword: { 
        required: "Please confirm Password", 
        equalTo: "Confirm Password must match Password" 
       }, 
       txtEmailAddress: { 
        required: "Please enter an Email Address", 
        email: "Please enter a valid Email Address" 
       }, 
       txtTelephoneNumber: { 
        required: "Please enter a Telephone Number", 
        number: "Telephone Number must be numeric" 
       } 
      } 
     }); 
    });

编辑：

我已经走到这一步，但我这样做的时候，我失去了我的窗体上的值，大概是因为格式已经张贴在这里？

$("form").validate({ 
    //errorLabelContainer: $("#divErrors"), 

     rules: { 
      txtUserName: { 
       required: true, 
       minlength: 4 
      }, 
      txtPassword: { 
       required: true 
      }, 
      txtConfirmPassword: { 
       required: true, 
       equalTo: "#txtPassword" 
      }, 
      txtEmailAddress: { 
       required: true, 
       email: true 
      }, 
      txtTelephoneNumber: { 
       required: true, 
       number: true//, 
       //postalCode:true 
      } 
     }, 
     messages: { 
      txtUserName: { 
       required: "Please enter a User Name", 
       minlength: "User Name must be at least 4 characters" 
      }, 
      txtPassword: { 
       required: "Please enter a Password" 
      }, 
      txtConfirmPassword: { 
       required: "Please confirm Password", 
       equalTo: "Confirm Password must match Password" 
      }, 
      txtEmailAddress: { 
       required: "Please enter an Email Address", 
       email: "Please enter a valid Email Address" 
      }, 
      txtTelephoneNumber: { 
       required: "Please enter a Telephone Number", 
       number: "Telephone Number must be numeric" 
      } 
     }, 
     onValid: addUser() 
    }); 
});

功能ADDUSER（）{

alert($('input[name="txtUserName"]').val());

}

来源

2011-04-04 user517406

检查尼克的回答是> http://stackoverflow.com/questions/3650909/jquery-validate/3650937#3650937 – neebz 2011-04-04 09:59:14

看着这个线程后，我想这一点，但我的web服务似乎并不被称为： – user517406 2011-04-04 10:14:23

能你添加你的代码？客户端和服务器端 – neebz 2011-04-04 10:15:30

有您使用一个远程规则。您可以指定一个POST URL，然后检查数据并返回true/false。看看它的文档了解更多细节。这正是你的场景

来源

2011-04-04 09:57:51 neebz

JQuery验证插件对输入的每一个变化和注意力进行验证。我不认为调用Web服务和检查数据库是每一次重点领域变化的主意都不是好主意。相反，你可以通过表单提交例如ajax来完成。

来源

2011-04-04 10:39:50 archil

您可以使用ajax调用从数据库检索数据，然后使用这些数据，您可以使用远程规则处理验证。

来源

2011-04-04 10:51:21 thecodeparadox

JQuery验证和数据库调用

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