SessionLocaleResolver国际化

•
SessionLocaleResolver不是默认的语言区域解析器,需要对其进行显式配置.如果使用他,SpringMVC会从HttpSession作用域中获取用户设置的语言区域,来确定使用哪个语言区域.
示例:基于HttpSession的国际化实现:
1.修改配置文件
<!-- messageSource国际化 -->
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
    <property name="basenames" value="message" />
    <property name="defaultEncoding" value="UTF-8" />
</bean>
<!-- 国际化操作拦截器如果采用(Session或Cookie)则必须配置 -->
<mvc:interceptors>
    <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" />
</mvc:interceptors>
<!-- AcceptHeaderLocaleResolver配置 因为AcceptHeaderLocaleResolver是默认语言区域解析器,不配置也可以 -->
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver" />
2.建立语言文件
message_zh_CN.properties
title=我是标题
message_en_US.properties
title=IMTITLE
3.控制器
public class I18nController
{
    @RequestMapping("/i18n")
    public String Form(
            String request_locale,
            HttpServletRequest request,
            Model model
            )
    {
        if(request_locale != null)
        {
            if(request_locale.equals("zh_CN"))
            {
                Locale locale = new Locale("zh","CN");
                request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, locale);;
            }
            else if(request_locale.equals("en_US"))
            {
                Locale locale = new Locale("en","US");
                request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, locale);
            } else {
                request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, LocaleContextHolder.getLocale());;
            }
        }
        return "i18n";
    }
}
4.视图
<!DOCTYPE HTML>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" >
<head>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
    <meta content="text/html;charset=UTF-8"/>
    <title>i18n</title>
</head>
<body>
    <h2><a href="/springTest/i18n?request_locale=zh_CN">中文</a>|<a href="/springTest/i18n?request_locale=en_US">英文</a></h2>
    <h2><spring:message code="title" /></h2>
</body>
</html>
中文:
英文: