》Java中i18nAction实现国际化<二> 作者：左轩、Shiny
实现方式二：拦截器+I18NAction实现按钮切换并调回原来的页面
login_zh_CN.properties：
username=\u8D26\u53F7
password=\u5BC6\u7801
languag=\u8BED\u8A00\u8BBE\u7F6E
zhcn=\u4E2D\u6587
enus=English
login_en_US.properties：
username=User Name
password=Password
languag=Language Set
zhcn=\u4E2D\u6587
enus=English
language.jsp页面如下：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!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>I18N国际化</title>
</head>
<body>
<s:text name="languag" />
<a href="i18nAction_changeLocal.action?local=zh_CN" target="_blank" rel="external nofollow" >
<s:text name="zhcn" />
</a>
<a href="i18nAction_changeLocal.action?local=en_US" target="_blank" rel="external nofollow" >
<s:text name="enus" />
</a>
<s:form action="">
<s:textfield name="user.username" key="username" />
<s:textfield name="user.username" key="password" />
</s:form>
</body>
</html>
struts.xml配置如下：
<constant name="struts.custom.i18n.resources" value="login"></constant>
<interceptors>
<interceptor name="i18nInterceptor" class="com.huawei.ssi.interceptor.I18NInterceptor"></interceptor>
<interceptor-stack name="myStack">
<interceptor-ref name="i18nInterceptor" />
<interceptor-ref name="defaultStack" />
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="myStack" />
I18NInterceptor.java
package com.huawei.ssi.interceptor;
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 I18NInterceptor extends AbstractInterceptor {
/**
*
*/
private static final long serialVersionUID = 1L;
@Override
public String intercept(ActionInvocation invocation) throws Exception {
// TODO Auto-generated method stub
ActionContext context = invocation.getInvocationContext();
Map<String, Object> params = context.getParameters();
for(String key:params.keySet()){
//System.out.println(key+"----");
if(key.equals("local")){
String[] values = (String[]) params.get(key);
String local = values[0];
Locale locale = localSplit(local);
context.setLocale(locale);
}
}
//执行下一个拦截器
return invocation.invoke();
}
public Locale localSplit(String local){
String[] cl = local.split("_");
return new Locale(cl[0],cl[1]);
}
}
I18NAction.java
package com.huawei.ssi.action;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class I18NAction extends ActionSupport{
private String url;
/**
*
*/
private static final long serialVersionUID = 1L;
public String changeLocal(){
HttpServletRequest request = (HttpServletRequest) ServletActionContext.getRequest();
String str = (String) request.getSession().getAttribute("url");
setUrl(str);
return "url";
}
public void setUrl(String url) {
this.url = url;
}
public String getUrl() {
return url;
}
}
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