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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>
<!--1 Multi-Lanuage support formbean-->
<form-bean
name="SelectLanguageForm"
type="com.nova.colimas.web.form.SelectLanguageForm"/>
</form-beans>
<!-- =========================================== Global Forward Definitions -->
<global-forwards>
<!-- Default forward to "Welcome" action -->
<!-- Demonstrates using index.jsp to forward -->
<forward
name="index"
path="/pages/index.jsp"/>
</global-forwards>
<!-- =========================================== Action Mapping Definitions -->
<action-mappings>
<!-- 1 select language action -->
<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>
<Title><bean:message key="index.jsp.welcome"/></Title>
<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">
<p><bean:message key="index.jsp.userid"/><input type="text" name="userID" value="tyrone1979" /><br>
<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
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