Java back-end checksum-using Hibernate-validator checksum JavaBean

Only the front-end check and its insecurity, the validation of the specification are both front and back of the form check, the following describes the use of hibernate-validator for back-end verification.

1. Add Dependent dependencies

 <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>4.3.1.Final</version> </dependency> <!--https:// mvnrepository.com/artifact/javax.validation/validation-api--  <dependency> <groupId>javax.validation</groupId> <artifactid        >validation-api</artifactId> <version>1.0.0.GA</version> </dependency> <!--https:// mvnrepository.com/artifact/ Org.jboss.logging/jboss-logging-->  <dependency> <groupid>org.jboss.logging</gr Oupid> <artifactId>jboss-logging</artifactId> <version>3.1.0.cr2</version>        ; </dependency> 

2. Define a public validation class

ImportJava.util.HashMap;ImportJava.util.Iterator;ImportJava.util.Map;ImportJava.util.Set;Importjavax.validation.ConstraintViolation;Importjavax.validation.Validation;ImportJavax.validation.Validator;ImportOrg.hibernate.validator.HibernateValidator;/** *  * @authorLeave **/ Public classValidationutils {/*** Use hibernate annotations for verification **/    Private StaticValidator Validator =Validation. Byprovider (hibernatevalidator.class). Configure (). FailFast (true). Buildvalidatorfactory (). Getvalidator (); /*** * * Task: *@paramobj *@return* date:2018 Year July 5 *@authorPengluo **/     Public Static<T> map<string,object>Validate (T obj) {stringbuffer buffer=NewStringBuffer ();//used to store the error message after validationmap<string,object> map =NewHashmap<string, object>(); Set<ConstraintViolation<T>> constraintviolations =validator.validate (obj); //throw a Test exception        if(Constraintviolations.size () > 0) {Iterator<ConstraintViolation<T>> iter =Constraintviolations.iterator ();  while(Iter.hasnext ()) {String message=Iter.next (). GetMessage ();               Buffer.append (message); } map.put ("IsValid",false); Map.put ("MSG", buffer.tostring ()); returnmap; }        Else{map.put ("IsValid",true); returnmap; }    }}

3. Define validation rules using annotations in JavaBean

    @NotEmpty (message= "name cannot be empty! ")    private  String name;     = "\\d{3,4}-\\d{7,8} (-\\d{3,4})?", message = "Phone number format error"    )Private  String Tel    ; = "1[3|4|5|6|7|8| 9]\\D{9} ", message =" Phone number format is wrong! ")    private  String moble;     = "([a-za-z0-9_-]) [email protected] ([a-za-z0-9_-]) + (. [ A-za-z0-9_-] + ", message =" Bad mailbox format! ")    private String email;

4. Check the JavaBean, through the Validationutils verification results, you can know in detail which field validation failed, the results back to the front-end interaction.

        ...//check before persisting in a controller or service
        map<string,object> ValMap = validationutils.validate (addressbook);         // package return parameters, such as Status,msg,code, etc.        New Alijson ();         if ((Boolean) valmap.get ("IsValid")) {            = Addressbookservices.saveaddressbook (addtxlutils ( Request, AddressBook));        } Else {            json.getjsonfalse (JSON, Valmap.get ("MSG"). toString ());        }
        ......

Common annotations Everyone can own Baidu, thank you, I am very vegetable, do not accept criticism, ha haha.

Java back-end checksum-using Hibernate-validator checksum JavaBean