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>