Struts2 国际化
中英文切换例子
1.搭建一个 web project项目后,新建两个视图层jsp页面,用来定义语言
(例:CheckInterceptor.jsp 、 LoginAction.jsp)
package com.zhaker.action;
import java.util.Locale;
import java.util.Map;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
public class CheckInterceptor extends AbstractInterceptor{
private static final long serialVersionUID = -1112495747942034188L;
@Override
public String intercept(ActionInvocation ai) throws Exception {
ActionContext ac = ai.getInvocationContext();
Map session = ac.getSession();
Locale locale = (Locale)session.get("WW_TRANS_I18N_LOCALE");
if(locale==null){
locale = new Locale("zh","CN");
session.put("WW_TRANS_I18N_LOCALE",locale);
}
return ai.invoke();
}
}
和
package com.zhaker.action;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport{
private static final long serialVersionUID = 8153220869598441387L;
@Override
public String execute() throws Exception {
return SUCCESS;
}
}
2. 编写一个messages_zh_CN.properties和messages_en_US.properties放在src下。
然后配置这两个属性:
代码如下
username=username
password=password
login=login
check=Please check your language
chinese=Chinese
english=English
username=\u767B\u5F55\u7528\u6237\u540D
password=\u767B\u5F55\u5BC6\u7801
login=\u767B\u5F55
check=\u9009\u62E9\u8BED\u8A00
chinese=\u4E2D\u6587
english=\u82F1\u6587
3.在jsp页面中使用国际化。这里需要使用标签:<s:i18n>标签
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
</head>
<body>
<s:i18n name="globalMessages">
<s:text name="check"></s:text>:
<a href="login.action?request_locale=zh_CN"><s:text name="chinese"></s:text></a>
<a href="login.action?request_locale=en_US"><s:text name="english"></s:text></a>
<br/>
<s:form action="login" method="post">
<table>
<tr>
<td>
<s:text name="username" />
<input type="text" name="name"/>
</td>
</tr>
<tr>
<td>
<s:text name="password" />
<input type="password" name="password"/>
</td>
</tr>
<tr>
<td><s:submit value="%{getText('login')}" /></td>
</tr>
</table>
</s:form>
</s:i18n>
</body>
</html>
4.在src中
打开struts.xml,修改配置参数,修改后的具体配置如下:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.costom.i18n.resources" value="globalMessages"/>
<package name="default" extends="struts-default" namespace="/">
<interceptors>
<interceptor name="myInter" class="com.zhaker.action.CheckInterceptor"></interceptor>
</interceptors>
<action name="login" class="com.zhaker.action.LoginAction">
<result name="success">/index.jsp</result>
<interceptor-ref name="defaultStack"></interceptor-ref>
<interceptor-ref name="myInter"></interceptor-ref>
</action>
</package>
</struts>
5…在web.xml中配置Struts2过滤器
打开web.xml,修改配置参数,修改后的具体配置如下:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
效果如下: