SPRINGMVC Bean Validator Custom annotations

Sometimes existing validation annotations do not meet some of the business requirements, so there is an extension of custom annotations.

1. Adding annotation classes

import javax.validation.constraint;import javax.validation.payload;import  java.lang.annotation.documented;import java.lang.annotation.retention;import  Java.lang.annotation.target;import static java.lang.annotation.elementtype.*;import static  java.lang.annotation.ElementType.PARAMETER;import static  java.lang.annotation.retentionpolicy.runtime;/** * user: zhoujingjie * date:  14-10-31 * time:  pm 6:00 */@Target ({ method, field, annotation_type,  CONSTRUCTOR,&NBSP;PARAMETER&NBSP) @Retention (RUNTIME) @Documented @constraint (validatedby = {  Phonenovalidator.class}) public  @interface  phoneno {    //default error message      string message ()  default  "phone number error";     //Group      class<?>[] groups ()  default { };    //load &NBSP;&NBSP;&NBsp; class<? extends payload>[] payload ()  default { };     //use      @Target when specifying multiple ({ field, method, parameter,  ANNOTATION_TYPE&NBSP,})      @Retention (RUNTIME)      @Documented       @interface  List {        PhoneNo[]  Value ();     }}

Custom annotations require custom validator, so the variables in the annotations are not mandatory and can be either a message or a

2. Add Phonenovalidator

import org.apache.commons.lang.stringutils;import javax.validation.constraintvalidator;import  javax.validation.constraintvalidatorcontext;/** *  Mobile phone number verification  * user: zhoujingjie *  Date: 14-11-1 * Time:  Morning 10:45 */public class phonenovalidator  implements constraintvalidator<phoneno,string> {     @Override      public void initialize (phoneno constraintannotation)  {     }     @Override     public boolean isvalid (String value,  constraintvalidatorcontext context)  {        if ( Stringutils.isempty (value))             return  true;        if (Value.matches ("(\\+86) | ( (1[3|4|5|8]\\d{9} ")) {&NBSP;&NBSP;&NBSP;&NBSP;&Nbsp;       return true;         }        return false;    }}

3. Finally

Complete, a simple custom annotation is completed. Use the same way as other annotations

SPRINGMVC Bean Validator Custom annotations