SPRING MVC3.2案例讲解--SPRING MVC3的服务端验证

 
提到服务器端验证，从最开始的STRUTS1开始就提供了，只要是MVC框架都提供了验证框架；直到最后开源框架直接促使JAVA推出新的JSR Bean Validation 1.0（JSR-303）；    http://www.iteye.com/topic/1123007 SPRING MVC 使用Hibernate Validator作为该标准的默认实现；
相关准备工作：
1.使用JSR303相关的JAR包
 
 

<!-- JSR 303 with Hibernate Validator -->

 

<dependency>

 

<groupId>javax.validation</groupId>

 

<artifactId>validation-api</artifactId>

 

<version>1.0.0.GA</version>

 

</dependency>

 

<dependency>

 

<groupId>org.hibernate</groupId>

 

<artifactId>hibernate-validator</artifactId>

 

<version>4.1.0.Final</version>

 

</dependency>

 

 

 

2. 在POJO上使用JSR303的相关注解：

 

 

 

 

package org.springframework.samples.mvc.form;

import java.math.BigDecimal;
import java.util.Date;
import java.util.Map;

import javax.validation.constraints.Min;
import javax.validation.constraints.Past;

import org.hibernate.validator.constraints.NotEmpty;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.format.annotation.NumberFormat;
import org.springframework.format.annotation.DateTimeFormat.ISO;
import org.springframework.format.annotation.NumberFormat.Style;
import org.springframework.samples.mvc.convert.MaskFormat;

public class FormBean {

@NotEmpty
private String name;

@Min(21)
private int age;

@DateTimeFormat(iso=ISO.DATE)
@Past
private Date birthDate;

@MaskFormat("(###) ###-####")
private String phone;

@NumberFormat(pattern="$###,###.00")
private BigDecimal currency;

@NumberFormat(style=Style.PERCENT)
private BigDecimal percent;

private InquiryType inquiry;

private String inquiryDetails;

private boolean subscribeNewsletter;

private Map<String, String> additionalInfo;

}
//get set方法在博文中省略

 

 

3.在controller中使用@Valid

 

 

@Valid

 

@RequestMapping(method = RequestMethod.POST)
public String processSubmit(@Valid FormBean formBean, BindingResult result,
@ModelAttribute("ajaxRequest") boolean ajaxRequest, Model model,
RedirectAttributes redirectAttrs) {
if (result.hasErrors()) {
return null;
}
}

 
4.注意使用<mvc:annotation-driven> 后，不需要显式使用hibernate-validator