Struts2 Validation Using XML

Struts 2 validation using XML example.

UserAction.java

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1. package classes;  
2.     package action;  
3.   
4.     import com.opensymphony.xwork2.ActionSupport;  
5.     import java.util.Date;  
6.     public class UserAction extends ActionSupport {  
7.         private String userName;  
8.         private String password;  
9.         private String email;  
10.         private Integer age;  
11.         private Date bday;  
12.   
13.         public Date getBday() {  
14.             return bday;  
15.         }  
16.   
17.         public void setBday(Date bday) {  
18.             this.bday = bday;  
19.         }  
20.   
21.         public Integer getAge() {  
22.             return age;  
23.         }  
24.   
25.         public void setAge(Integer age) {  
26.             this.age = age;  
27.         }  
28.   
29.         public String login() {  
30.   
31.             // TODO: login check  
32.   
33.             return SUCCESS;  
34.         }  
35.   
36.         public String getEmail() {  
37.             return email;  
38.         }  
39.   
40.         public void setEmail(String email) {  
41.             this.email = email;  
42.         }  
43.                
44.         public String getPassword() {  
45.             return password;  
46.         }  
47.   
48.         public void setPassword(String password) {  
49.             this.password = password;  
50.         }  
51.   
52.         public String getUserName() {  
53.             return userName;  
54.         }  
55.   
56.         public void setUserName(String userName) {  
57.             this.userName = userName;  
58.         }  
59.     }  

package classes;
    package action;

    import com.opensymphony.xwork2.ActionSupport;
    import java.util.Date;
    public class UserAction extends ActionSupport {
        private String userName;
        private String password;
        private String email;
        private Integer age;
        private Date bday;

        public Date getBday() {
            return bday;
        }

        public void setBday(Date bday) {
            this.bday = bday;
        }

        public Integer getAge() {
            return age;
        }

        public void setAge(Integer age) {
            this.age = age;
        }

        public String login() {

            // TODO: login check

            return SUCCESS;
        }

        public String getEmail() {
            return email;
        }

        public void setEmail(String email) {
            this.email = email;
        }
             
        public String getPassword() {
            return password;
        }

        public void setPassword(String password) {
            this.password = password;
        }

        public String getUserName() {
            return userName;
        }

        public void setUserName(String userName) {
            this.userName = userName;
        }
    }

UserAction-validation.xml

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1. <?xml version="1.0" encoding="UTF-8"?>  
2.         <!DOCTYPE validators PUBLIC  
3.           "-//OpenSymphony Group//XWork Validator 1.0.2//EN"  
4.           "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">  
5. <validators>  
6.     <field name="userName">  
7.         <field-validator type="requiredstring">  
8.             <message>Username Required</message>  
9.         </field-validator>  
10.     </field>  
11.     <field name="password">  
12.         <field-validator type="requiredstring">  
13.             <message>Password Required</message>  
14.         </field-validator>  
15.     </field>  
16.     <field name="email">  
17.         <field-validator type="email">  
18.             <message>Invalid Email</message>  
19.         </field-validator>  
20.     </field>  
21.     <field name="age">  
22.         <field-validator type="required">  
23.             <message>Age Is Required</message>  
24.         </field-validator>  
25.         <field-validator type="int">  
26.             <param name="min">18</param>  
27.             <param name="max">25</param>  
28.             <message>Invalid Age</message>  
29.         </field-validator>  
30.     </field>  
31.     <field name="bday">  
32.         <field-validator type="date">  
33.             <param name="min">12/31/2000</param>  
34.             <param name="max">12/31/2010</param>  
35.             <message>Invalid Date Range</message>  
36.         </field-validator>  
37.     </field>  
38.   
39. </validators>  

<?xml version="1.0" encoding="UTF-8"?>
        <!DOCTYPE validators PUBLIC
          "-//OpenSymphony Group//XWork Validator 1.0.2//EN"
          "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
    <field name="userName">
        <field-validator type="requiredstring">
            <message>Username Required</message>
        </field-validator>
    </field>
    <field name="password">
        <field-validator type="requiredstring">
            <message>Password Required</message>
        </field-validator>
    </field>
    <field name="email">
        <field-validator type="email">
            <message>Invalid Email</message>
        </field-validator>
    </field>
    <field name="age">
        <field-validator type="required">
            <message>Age Is Required</message>
        </field-validator>
        <field-validator type="int">
            <param name="min">18</param>
            <param name="max">25</param>
            <message>Invalid Age</message>
        </field-validator>
    </field>
    <field name="bday">
        <field-validator type="date">
            <param name="min">12/31/2000</param>
            <param name="max">12/31/2010</param>
            <message>Invalid Date Range</message>
        </field-validator>
    </field>

</validators>