Struts2 國際化與防止刷新重復提交表單
本實例用兩個頁面(create.jsp,createResult.jsp),一個Action(CreateAction),一個驗證文件(CreateAction-validation.xml),兩個Struts2 國際化文件(message_en_US.properties,message_zh_CN.properties),還有一個struts.xml(必有的).創建用戶成功之后,顯示剛才創建的信息,不成功則顯示錯誤提示,錯誤提示使用了Struts2 國際化來顯示,輸入合法性就用了用struts2的驗證機制驗證.
如下結構圖,好好對照:
K:\ECLIPSWORKS\STRUTS2TEST
│ .classpath
│ .mymetadata
│ .project
│
├─.myeclipse
├─src
│ │ message_en_US.properties
│ │ message_zh_CN.properties
│ │ struts.xml
│ │
│ └─cn
│ └─struts2
│ CreateAction-validation.xml
│ CreateAction.java
│
└─WebRoot
│ create.jsp
│ createResult.jsp
│
├─META-INF
│ MANIFEST.MF
│
└─WEB-INF
│ web.xml
│
├─classes
│ │ message_en_US.properties
│ │ message_zh_CN.properties
│ │ struts.xml
│ │
│ └─cn
│ └─struts2
│ CreateAction-validation.xml
│ CreateAction.class
│
└─lib
commons-logging-1.0.4.jar
freemarker-2.3.8.jar
jcommon-1.0.14.jar
junit.jar
ognl-2.6.11.jar
struts2-core-2.0.11.2.jar
struts2-jfreechart-plugin-2.0.11.2.jar
xwork-2.0.5.jar
1.CreateAction.java
// ******************************************************************
package cn.struts2;import java.util.Date;
import com.opensymphony.xwork2.ActionSupport;
public class CreateAction extends ActionSupport
{
private String name ;
private String password;
private String repassword;
private Date birthday;
private Date registedDay;
private int age;
private String email;
/**
* @return the name
*/
public String getName()
{
return name;
}
/**
* @param name the name to set
*/
public void setName(String name)
{
this.name = name;
}
/**
* @return the password
*/
public String getPassword()
{
return password;
}
/**
* @param password the password to set
*/
public void setPassword(String password)
{
this.password = password;
}
/**
* @return the repassword
*/
public String getRepassword()
{
return repassword;
}
/**
* @param repassword the repassword to set
*/
public void setRepassword(String repassword)
{
this.repassword = repassword;
}
/**
* @return the birthday
*/
public Date getBirthday()
{
return birthday;
}
/**
* @param birthday the birthday to set
*/
public void setBirthday(Date birthday)
{
this.birthday = birthday;
}
/**
* @return the registedDay
*/
public Date getRegistedDay()
{
return registedDay;
}
/**
* @param registedDay the registedDay to set
*/
public void setRegistedDay(Date registedDay)
{
this.registedDay = registedDay;
}
/**
* @return the age
*/
public int getAge()
{
return age;
}
/**
* @param age the age to set
*/
public void setAge(int age)
{
this.age = age;
}
public String getEmail()
{
return email;
}
public void setEmail(String email)
{
this.email = email;
}
//****************************************
public String execute()throws Exception
{
return SUCCESS;
}
}
2.置全局Struts2 國際化文件(兩個):
// message_en_US.properties ********************************************
create = Create Users Information
username.invalid = User Name Not Null!
password.invalid.null = Password Not Null!
password.invalid.too.short.or.long = Password should be between 6 and 10
submit = submit
//***********************************************************************
中文國際化
// message_zh_CN.properties ********************************************
create = \u521b\u5efa\u7528\u6237\u4fe1\u606f
username.invalid = \u7528\u6237\u540d\u4e0d\u80fd\u4e3a\u7a7a
password.invalid.null = \u5bc6\u7801\u4e0d\u80fd\u4e3a\u7a7a
password.invalid.too.short.or.long = \u5bc6\u7801\u957f\u5ea6\u5fc5\u987b\u57286\u523010\u4e4b\u95f4
submit =\u63d0\u4ea4//***********************************************************************
注意:如(create = \u521b\u5efa\u7528\u6237\u4fe1\u606f)等號右邊的一串亂碼是中文字符對就的ASCII碼值,如果你需要轉換,可以打開你的CMD(開始-->運行-->輸入CMD即可),輸入命令native2ascii,回車,將你的中文字符粘上,再回車就可以看到一串亂碼了.再將其COPY到相應的位置即可.
文件的名字不能亂取,XXX_en_US.properties,XXX_zh_CN.properties,XXX后面的名字是固定的,而前面的XXX是根據你的struts.xml文件中的
< CONSTANT name="struts.custom.i18n.resources" value="XXX">中的XXX而取的.本例的XXX就是message.3.struts.xml
// ************************************************************************
< ?xml version="1.0" encoding="UTF-8"?>
http://struts.apache.org/dtds/struts-2.0.dtd">
< STRUTS>
< CONSTANT name="struts.custom.i18n.resources" value="message">< /CONSTANT>
< PACKAGE name="struts2" extends="struts-default">< ACTION class=cn.struts2.CreateAction name="create">
/createResult.jsp< /RESULT>
< RESULT name="input">/create.jsp< /RESULT>
< INTERCEPTOR-REF name="token">< /INTERCEPTOR-REF>
< INTERCEPTOR-REF name="defaultStack">< /INTERCEPTOR-REF>
/create.jsp
< /PACKAGE>
//************************************************************************
4.web.xml
// ****************************************************************xmlns=" xmlns:xsi=" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
< FILTER>
< FILTER-NAME>struts2< /FILTER-NAME>
< FILTER-CLASS>org.apache.struts2.dispatcher.FilterDispatcher< /FILTER-CLASS>
< /FILTER>
< FILTER-MAPPING>
< FILTER-NAME>struts2
< URL-PATTERN>/*< /URL-PATTERN>
< /FILTER-MAPPING>
< /WEB-APP>//*************************************************************************
5.JSP文件
(1)
// createResult.jsp ************************************************************************<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib prefix="s" uri="/struts-tags" %>
< BASE href="<%=basePath%>">
< META content=no-cache http-equiv=pragma>
< META content=no-cache http-equiv=cache-control>
< META content=0 http-equiv=expires>
< META content=keyword1,keyword2,keyword3 http-equiv=keywords>
< META content="This is luanmad's JSP page" http-equiv=description>
< !--
< LINK rel=stylesheet type=text/css href="styles.css">
-->
User Name:${requestScope.name }
Password :${requestScope.password }
Age:< ?xml:namespace prefix = s />< s:property value="age">
Birthday:< s:property value="birthday">< /s:property>
RegistedDay:< s:property value="registedDay">< /s:property>
Email:< s:property value="email">< /s:property>
//***********************************************************************
(2)
// create.jsp *******************************************************************< %@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<%@ taglib prefix="s" uri="/struts-tags"%>
">
< META content=no-cache http-equiv=pragma>
< META content=no-cache http-equiv=cache-control>
< META content=0 http-equiv=expires>
< META content=keyword1,keyword2,keyword3 http-equiv=keywords>
< META content="This is luanmad's JSP page " http-equiv=description>
< !--
-->
< s:form method="post" action="create">
< !-- 防止刷新重復提交-->
< s:token>< /s:token>< s:textfield name="name" label="User Name">< /s:textfield>
< s:password name="password" label="Password">< /s:password>
< s:textfield name="age" label="Age">< /s:textfield>
< s:textfield name="birthday" label="Birthday">< /s:textfield>
< s:textfield name="registedDay" label="RegistedDay">
< s:textfield name="email" label="Email">
< s:submit key="submit">< /s:submit>
< s:reset label="reset">< /s:reset>
//*******************************************************************
6.驗證文件(注意名字要與你的Action名字一樣,后面再跟固定的(-validation.xml)如(CreateAction-validation.xml)
CreateAction-validation.xml:
// ****************************************************************************
< ?xml version="1.0" encoding="UTF-8"?>
http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">< !-- 格式的寫法可以參照XWork Validator 1.0.2.dtd -->
< !-- 參數設置參照xwork-2.0.5.jar 下的com.opensymphony.xwork2.validator.validators/default.xml -->
< VALIDATORS>
< !--驗證誰, 用誰來驗證 -->
< FIELD name="name">
< FIELD-VALIDATOR type="requiredstring">
< !--requiredstring對應的類的方法里的參數名trim 如public void setTrim(boolean trim)里的trim -->
< PARAM name="trim">true< /PARAM>
< !-- message key的key內容是I18N里(即baseName_zh_CN.properties和baseName_en_US.properties中)定義的字段名即等號在邊的名字如(username.invalid = 名字不能為空)-->
< /MESSAGE>
< /FIELD-VALIDATOR>
< /FIELD>
< FIELD name="password">
< FIELD-VALIDATOR type="requiredstring">
< PARAM name="trim">true< /PARAM>
< MESSAGE key="password.invalid.null">< /MESSAGE>
< /FIELD-VALIDATOR>
< /FIELD>
< FIELD name="password">
< FIELD-VALIDATOR type="stringlength">
< PARAM name="minLength">6< /PARAM>
< PARAM name="maxLength">16< /PARAM>
< MESSAGE key="password.invalid.too.short.or.long">< /MESSAGE>
< /FIELD-VALIDATOR>
< /FIELD>
< !-- 以下未做國際化 -->
< FIELD name="age">
< FIELD-VALIDATOR type="int">
1< /PARAM>
< PARAM name="max">150< /PARAM>
< MESSAGE>age should be between ${min} and ${max}
< /FIELD-VALIDATOR>
< /FIELD>
< FIELD name="birthday">
< FIELD-VALIDATOR type="required">
< MESSAGE>birthday not null!< /MESSAGE>
< /FIELD-VALIDATOR>
< FIELD-VALIDATOR type="date">
< PARAM name="min">2000-01-01< /PARAM>
< PARAM name="max">2008-01-01< /PARAM>
< MESSAGE>birthday should be between ${min} and ${max}
< /FIELD-VALIDATOR>
< FIELD name="email">
< FIELD-VALIDATOR type="email">
< MESSAGE>email format error!
< /FIELD-VALIDATOR>
< /FIELD>
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