Struts2 中，相同的验证规则，如何使用同一条异常响应信息，及动态调用各自对应的名称？
如果相同的验证规则作为公共验证器使用，仅需修改 短路验证 中的 三个国际化资源文件，及公共验证器，和在页面与作为Model的类中添加相映的字段，number
示例如下：
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三个国际化资源文件
基类 ：nihao.properties
注意：动态调用fieldName 使用的方法是${getText(fieldName)} ，而后把fieldName 中name 的属性名也配置到国际化资源文件中，这样可以实现多语言的切换
username=UserName
password=Password
password2=Password
submit=Submit
time=Time:{0}
error.int=${getText(fieldName)} needs to be between ${min} and ${max}
age=Age
number=Number
中文：nihao_zh_CN.properties
username=\u7528\u6237\u540D
password=\u8F93\u5165\u5BC6\u7801
password2=\u518D\u6B21\u786E\u8BA4\u5BC6\u7801
submit=\u63D0\u4EA4
time=\u65F6\u95F4:{0}
time2=\u65F6\u95F4:${birth}
error.int=${getText(fieldName)} \u9700\u8981\u5728 ${min} \u548C ${max}\u4E4B\u95F4
age=\u5E74\u9F84
number=\u6570\u5B57
英文：nihao_en_US.properties
username=UserName
password=Password
password2=Password
submit=Submit
time=Time:{0}
time2=Time:${birth}
error.int=${getText(fieldName)} needs to be between ${min} and ${max}
age=Age
number=Number
公共验证器
TestAgeValidation-validation.xml
<!DOCTYPE validators PUBLIC
"-//Apache Struts//XWork Validator 1.0.2//EN"
"http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">
<validators>
<field name="age">
<!-- 类型转换验证 -->
<field-validator type="conversion" short-circuit="false" >
<message>类型转换错误</message>
</field-validator>
<!--
看看添加了短路验证 short-circuit="false"
若类型转换错误的时候，还会不会进行下面的 int整型验证
-->
<field-validator type="int" short-circuit="false">
<param name="min">1</param>
<param name="max">130</param>
<message key="error.int"></message>
</field-validator>
</field>
<!-- 新增此条验证器 -->
<field name="number">
<!-- 类型转换验证 -->
<field-validator type="conversion" short-circuit="false" >
<message>类型转换错误</message>
</field-validator>
<field-validator type="int" short-circuit="false">
<param name="min">2</param>
<param name="max">20</param>
<message key="error.int"></message>
</field-validator>
</field>
<validator type="expression">
<param name="expression"><![CDATA[password==password2]]></param>
<message>密码不一致</message>
</validator>
</validators>
添加number 字段后的Person 类
package com.baidu.domain;
public class Person {
private Integer age;
private String password;
private String password2;
private Integer number;
public Integer getNumber() {
return number;
}
public void setNumber(Integer number) {
this.number = number;
}
public String getPassword2() {
return password2;
}
public void setPassword2(String password2) {
this.password2 = password2;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
@Override
public String toString() {
return "Person [age=" + age + ", password=" + password + ", password2="
+ password2 + ", number=" + number + "]";
}
}
页面：
仅以 validation.jsp 页面为例，其他类同！
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<br><br>
<s:debug></s:debug>
<a href="testAge3.action?request_locale=zh_CN">中文</a>
<a href="testAge3.action?request_locale=en_US">English</a>
<br><br>
<a href="index.jsp">主页</a>
<center>
<s:actionerror/>
<s:form action="testAge1" >
<s:textfield name="age" key="age"></s:textfield>
<s:textfield name="number" key="number"></s:textfield>
<s:password name="password" key="password"></s:password>
<s:password name="password2" key="password2"></s:password>
<s:submit key="submit"></s:submit>
</s:form>
</center>
</body>
</html>
效果：
英文：
中文：
实现了 相同的验证规则，可以使用同一条响应信息，且能动态的切换 相对映的 fieldName的 name 属性名！