电子邮件在控制器Grails中进行验证 [英] Email Validation in a controller Grails

问题描述

我只是想验证控制器中的电子邮件地址，我认为这很简单。我所做的方法如下：

  def emailValidCheck（String emailAddress）{
 EmailValidator emailValidator = EmailValidator。 getInstance（）
 if（！emailAddress.isAllWhitespace（）|| emailAddress！= null）{
 String [] email = emailAddress.replaceAll（// s +，）。split（， ）
 email.each {
 if（emailValidator.isValid（it））{
 return true 
} else {return false} 
} 
} 
 
 $ / code> 

这与sendMail函数一起使用，我的代码在这里：



  def emailTheAttendees（String email）{
 def user = lookupPerson（）
 if（！email .isEmpty（））{
 def splitEmails = email.replaceAll（// s +，）。split（，）
 splitEmails.each {
 def String currentEmail = it 
 sendMail {
到currentEmail 
 System.out.println（什么是解决：+ currentEmail）
主题您的朋友$ {user.username}邀请您作为任务参加者
 html g.render（template：/ emails / Attendees）
} 
} 
} 
 
} 
  



<这可以工作，并发送电子邮件到有效的电子邮件地址，但如果我随意放入一些不是地址的东西，只会发送sendMail异常。我无法理解为什么它没有正确验证，甚至进入了正在save方法中调用的emailTheAttendees（）方法。

解决方案

我建议使用约束和一个命令对象来实现这一点。例子：



命令对象：



  @ grails.validation.Validateable 
 class YourCommand {
字符串电子邮件
字符串otherStuffYouWantToValidate 
 
静态约束= {
 email（空白：false，电子邮件：true）
。 .. 
 
 
  

在您的控制器中像这样调用它：



  class YourController {
 def yourAction（YourCommand command）{
 if（command.hasErrors（））{ 
 //处理错误
返回
} 
 
 //使用命令对象数据
} 
} 
  code> 




I'm just trying to validate an email address in a Controller which I thought would be simple. The method I've done is as follows:

def emailValidCheck(String emailAddress)  {
    EmailValidator emailValidator = EmailValidator.getInstance()
    if (!emailAddress.isAllWhitespace() || emailAddress!=null) {
        String[] email = emailAddress.replaceAll("//s+","").split(",")
        email.each {
            if (emailValidator.isValid(it)) {
            return true
            }else {return false}
        }
    }
}

This is being used with a sendMail function, which my code for that is here:

def emailTheAttendees(String email) {
    def user = lookupPerson()
    if (!email.isEmpty()) {
        def splitEmails = email.replaceAll("//s+","").split(",")
        splitEmails.each {
            def String currentEmail = it
            sendMail {
                to currentEmail
                System.out.println("what's in to address:"+ currentEmail)
                subject "Your Friend ${user.username} has invited you as a task attendee"
                html g.render(template:"/emails/Attendees")
            }
        }
    }

}

This works and sends emails to valid email addresses, but if I put in something random that is not an address just breaks with sendMail exception. I can't understand why it's not validating correctly and even going into the emailTheAttendees() method ... which is being called in the save method.

解决方案

I would suggest using constraints and a command object to achieve this. Example:

Command Object:

@grails.validation.Validateable
class YourCommand {
    String email
    String otherStuffYouWantToValidate

    static constraints = {
        email(blank: false, email: true)
        ...
    }
}

Call it like this in your controller:

class YourController {
    def yourAction(YourCommand command) {
        if (command.hasErrors()) {
            // handle errors
            return
        }

        // work with the command object data
    }
}

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