strut2,模型驱动验证框架

SaveUserAction.java

package com.xk.action.user;

import com.opensymphony.xwork2.ActionSupport;
import com.xk.bean.User;
import com.xk.service.UserService;

public class SaveUserAction extends ActionSupport {

 private User user;
 private UserService service;
 
 public UserService getService() {
  return service;
 }

 public void setService(UserService service) {
  this.service = service;
 }

 public User getUser() {
  return user;
 }

 public void setUser(User user) {
  this.user = user;
 }
 
 @Override
 public String execute() throws Exception {
  this.service.save(this.user);
  return SUCCESS;
 }
 
}

 

校验方法一：

在SaveUserAction.java所在目录建一个SaveUserAction-validation.xml文件。

SaveUserAction-validation.xml内容为：

<?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="user.firstname">
  <field-validator type="requiredstring">
   <message>firstname is required!</message>
  </field-validator>
 </field>
 
 <field name="user.lastname">
  <field-validator type="requiredstring">
   <message>lastname is required!</message>
  </field-validator>
 </field>
 
 <field name="user.age">
  <field-validator type="required">
   <message>lastname is required!</message>
  </field-validator>
  <field-validator type="int">
   <param name="min">1</param>
   <param name="max">150</param>
   <message>age should between ${min} and ${max}</message>
  </field-validator>
 </field> 
</validators>

 

校验方法二(visitor方式验证)：这种方式要建两个xml文件

1.SaveUserAction-validation.xml

在SaveUserAction.java所在目录建一个SaveUserAction-validation.xml文件。

SaveUserAction-validation.xml内容为：

<?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="user">
   <field-validator type="visitor">
    <param name="context">user</param>   <!-- 另一个xml文件的名字中的一部分，另一个文件的命名规则为：bean的名字-context的内容-validation.xml -->
    <param name="appendPrefix">true</param>   <!--  -->
    <message>user's </message>   <!--  -->
   </field-validator>
  </field>
 </validators>

2.User-user-validation.xml  按照命名规则：  bean的名字-上面SaveUserAction-validation.xml文件中context的内容-validation.xml  命名。

再在bean的目录下建一个User-user-validation.xml文件

User-user-validation.xml内容：

<?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="firstname">
  <field-validator type="requiredstring">
   <message>firstname is required!</message>
  </field-validator>
 </field>
 
 <field name="lastname">
  <field-validator type="requiredstring">
   <message>lastname is required!</message>
  </field-validator>
 </field>
 
 <field name="age">
  <field-validator type="required">
   <message>lastname is required!</message>
  </field-validator>
  <field-validator type="int">
   <param name="min">1</param>
   <param name="max">150</param>
   <message>age should between ${min} and ${max}</message>
  </field-validator>
 </field> 
</validators>

 

另附：applicationContext.xml文件中SaveUserAction的配置

<bean id="saveUserAction" class="com.xk.action.user.SaveUserAction" scope="prototype">  <!-- 其中scope="prototype"，不然页面显示错误的时候,每次的错误都会叠加-->
 <property name="service" ref="userService"></property>
</bean>