struts2国际化，实现登录表单中英文切换，在地址栏中增加参数request_locale=en_US即可正确切换到英文登录页面。
注意（在web.xml中有三种配置）
(1) /* 捕捉所有请求
(2) / 捕捉所有除 jsp页面之外的请求
(3) *.action 捕捉所有的action请求
login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC>
<html>
<head>
<title>Document</title>
<meta chartset="utf-8">
</head>
<body>
<s:text name="loginPage"/>
<s:form action="login" method="get">
<p><s:textfield name="user.name" key="username"/></p>
<p><s:password name="user.pass" key="password"/>
<p> <s:submit key="login"/></p>
</s:form>
<p>
<s:text name="selectLang"/>
<a href="switch?request_locale=zh_CN"><s:text name="chinese"/></a>
<a href="switch?request_locale=en_US"><s:text name="english"/></a>
</p>
</body>
</html>
main.jsp（登录成功后跳转的页面，在此不做登录处理）
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML>
<html>
<head>
<title>Main Document</title>
</head>
<body>
main
</body>
</html>
web.xml
<?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">
<display-name></display-name>
<welcome-file-list>
<welcome-file>login.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> struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<!-- <constant name="struts.ui.theme" value="simple"></constant>设置为不加入table标签 -->
<constant name="struts.custom.i18n.resources" value="LoginAction"></constant>
<package name="login" extends="struts-default" namespace="/">
<action name="login" class="top.k10000.LoginAction" method="login">
<result>/main.jsp</result>
</action>
<action name="switch" class="top.k10000.ChangeLang">
<result>/login.jsp</result>
</action>
</package>
</struts>
LoginAction.java
package top.k10000;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private static final long serialVersionUID = 5282197184219501014L;
private User user;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public String login() throws Exception {
return SUCCESS;
}
}
ChangeLang.java
package top.k10000;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;
public class ChangeLang extends ActionSupport {
private static final long serialVersionUID = 3791113563988999604L;
@Override
public String execute() throws Exception {
return Action.SUCCESS;
}
}User.java
package top.k10000;
public class User {
private String name;
private String pass;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
}
资源文件：
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