struts2中的电话号码错误

Question

If i give a ten digits number like 1234567891 it works fine,

but why 9964289813 instead doesn't work ?

jsp:

<s:textfield key="personalDetailsDTO.mobile"    label="Mobile" />

dto:

private int mobile;
public int getMobile() {
    return mobile;
}

public void setMobile(int mobile) {
    this.mobile = mobile;
}

action:

public class RegisterAction extends ActionSupport{
    private PersonalDetailsDTO personalDetailsDTO;
    System.out.println(personalDetailsDTO.getMobile());
}

Answer 1

In Java, the max value of an integer is 2,147,483,647 ( 2.147.483.647 in my country).

You are trying to insert 9,964,289,813 , that is higher.

That said, phone numbers can contain + , ( , ) and spaces... don't use a numeric field for a phone number, just use a String.

Answer 2

That does not fit into an int , as Integer.MAX_VALUE is 2^32 - 1 . Choose a different data type. Phone numbers shouldn't be numbers anyway, they can contain special characters, and start with zeroes.