Condition gets false even if it contains specified data

Question

I am trying to process mails using JAVA MAIL API. I want to check emails which comes from particular email id , So I am checking like :

   for(int i=0;i<messages.length;i++)
   {
       if(messages[i].getFrom().toString().equalsIgnoreCase("seller-notification@amazon.com"))
       {
           System.out.println(messages[i].getContent());

           Multipart mp = (Multipart)messages[i].getContent();  
           Object Body = mp.getBodyPart(i).getContent();
           String Content = Body.toString();
       }

}

Debug Mode Screen , I can see in debug that values is there in from :

Above condition is not getting true.

Answer 1

This is because it's not a string, and you are trying to compare an Object 's toString() method and a String . Since this toString won't return what you want, you have to cast it to Address and fetch email from there.

Try:

Address[] froms = messages[i].getFrom();
String email = froms == null ? null : ((InternetAddress) froms[0]).getAddress();
if("seller-notification@amazon.com".equalsIgnoreCase(email))
{//Your work}

Answer 2

The problem is that the toString generates "[Seller Notification ]", and this is not equals to "seller-notification@amazon.com".

You should cast to InternetAddress (check before just in case), extract the email and check the email.

Answer 3

.getFrom() method returns an array of Address datatype object. So first you have to select one of the array elements and cast it to InternetAddress datatype. See the code below

if(((InternetAddress)(messages[i].getFrom()[0])).getAddress().equalsIgnoreCase("seller-notification@amazon.com"))
{
    //your remaining code
}

Please mark this as answer if it solves your problem

Answer 4

messages [i] .getFrom（）。toString（）**仅提供字节值..）-您需要使用此行转换为字符串

        InternetAddress.toString(messages[i].getFrom());