SPRING IN ACTION 第4版笔记-第五章BUILDING SPRING WEB APPLICATIONS-007-表单验证@Valid、Error

一、

Starting with Spring 3.0, Spring supports the Java Validation API in Spring MVC . No extra configuration is required to make Java Validation work in Spring MVC . You just need to make sure an implementation of the Java API , such as Hibernate Validator, is in the project’s classpath.

2.在实体类写约束

 public class Spitter {

   private Long id;

   @NotNull

   @Size(min=5, max=16)

   private String username;

   @NotNull

   @Size(min=5, max=25)

   private String password;

   @NotNull

   @Size(min=2, max=30)

   private String firstName;

   @NotNull

   @Size(min=2, max=30)

   private String lastName;

   @NotNull

   @Email

   private String email;

3.controller中

 @RequestMapping(value="/register", method=POST)

   public String processRegistration(

       @Valid Spitter spitter,

       Errors errors) {

     if (errors.hasErrors()) {

       return "registerForm";

     }

巴特西

SPRING IN ACTION 第4版笔记-第五章BUILDING SPRING WEB APPLICATIONS-007-表单验证@Valid、Error

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