Struts实现多国语言切换

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1 准备资源文件。资源文件命名格式：filename_language_country.properties.

中文文件名为index_zh_CN.properties。

日文文件名为 index_ja_JP.properties。

英文文件名为 index_en.properties。

英文文件内容：

index.jsp.welcome=Colimas Library Management System

index.jsp.name=Name

index.jsp.userid=User ID

index.jsp.pass=Password

中文文件内容：

index.jsp.welcome=/u4f60/u597d

index.jsp.name=/u59d3/u540d

index.jsp.userid=/u7528/u6237/u540d

index.jsp.pass=/u5bc6/u7801

日文文件内容：

index.jsp.welcome=/u3044/u3089/u3063/u3057/u3083/u3044/u307e/u305b

index.jsp.name=/u59d3/u540d

index.jsp.userid=/u30e6/u30fc/u30b6/u30fcID

index.jsp.pass=/u30d1/u30b9/u30ef/u30fc/u30c9

/uxxxx是中文被转换后的ASCII码。可以使用native2ascii.exe工具转换。

2 struts-config.xml里配置资源文件

<message-resources parameter="resources.config.index" />

resources.config.index是classes目录下的resources/config子目录的index__xx_xx.properties文件.

struts根据你的浏览器的语言设置调用不同语言的资源文件。

例如：如果你的IE默认语言为中文则。Struts将使用index_zh_CN.properties。而在struts-config.xml里只需写出“index”即可

ActionMapping

<form-beans>

<form-bean

name="SelectLanguageForm"

type="com.nova.colimas.web.form.SelectLanguageForm"/>

</form-beans>

<global-forwards>

<forward

name="index"

path="/pages/index.jsp"/>

</global-forwards>

<action-mappings>

<action path="/SelectLanguageAction"

type="com.nova.colimas.web.action.SelectLanguageAction"

name="SelectLanguageForm"

scope="request">

</action>

…

</action-mappings>

3 jsp

<%@ page contentType="text/html; charset=UTF-8"%>

<%@ taglib uri="/tags/struts-bean" prefix="bean"%>

<%@ taglib uri="/tags/struts-html" prefix="html"%>

<%@ taglib uri="/tags/struts-logic" prefix="logic"%>

<html:html>

<body>

<logic:present name="user">

<H3>Welcome <bean:write name="LoginForm" property="userID" />!</H3>

</logic:present>

<logic:notPresent scope="session" name="user">

<H3>Welcome Colimas!</H3>

</logic:notPresent>

<html:errors />

<html:form action="/SelectLanguageAction.do">

<html:select property="language">

<html:option value="0">中文</html:option>

<html:option value="1">日本語</html:option>

<html:option value="2">English</html:option>

</html:select>

<html:submit>Select</html:submit>

</html:form>

<html:form action="/LoginAction.do">

<bean:message key="index.jsp.pass"/><input type="password" name="password" value="197913"/><br>

<html:submit><bean:message key="index.jsp.login"/></html:submit>

</p>

</html:form>

</body>

</html:html>

<bean:message key="index.jsp.welcome"/>引用资源文件的index.jsp.welcome属性

SelectLanguageAction.do调用Action实现语言转换。

4 Action

package com.nova.colimas.web.action;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionMessages;

//import org.apache.struts.upload.FormFile;

import com.nova.colimas.web.form.SelectLanguageForm;

import org.apache.struts.Globals;

import java.util.Locale;

public class SelectLanguageAction extends Action {

public ActionForward execute(ActionMapping mapping,

ActionForm form,

HttpServletRequest request,

HttpServletResponse response)

throws Exception{

SelectLanguageForm myform=(SelectLanguageForm)form;

String lan=myform.getLanguage();

switch((new Integer(lan)).intValue()){

case 0 :

request.getSession().setAttribute(Globals.LOCALE_KEY,Locale.CHINA);

break;

case 1:

request.getSession().setAttribute(Globals.LOCALE_KEY, Locale.JAPAN);

break;

case 2:

request.getSession().setAttribute(Globals.LOCALE_KEY, Locale.ENGLISH);

break;

default:

request.getSession().setAttribute(Globals.LOCALE_KEY, Locale.ENGLISH);

break;

}

return mapping.findForward("index");

}

Form

* Created on 2005/06/18

* TODO To change the template for this generated file go to

* Window - Preferences - Java - Code Style - Code Templates

package com.nova.colimas.web.form;

import org.apache.struts.action.ActionForm;

/**

* @author tyrone

**/

public class SelectLanguageForm extends ActionForm {

private String language;

public void Reset() {

this.language="";

return;

}

/**

* @return Returns the Language.

public String getLanguage() {

return language;

}

/**

* @param language The Language to set.

public void setLanguage(String property1) {

this.language = property1;

}

结果

1 IE默认语言为中文：

启动画面

切换为日语

切换为英文