基于HttpSession的国际化实现

小咪咪 2022-05-16 14:06 137阅读 0赞

**示例【基于HttpSession的国际化实现】**

**创建login.jsp**

<%@ page language="java" contentType="text/html; charset=utf-8"
        pageEncoding="utf-8"%>
    <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
    <%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title><spring:message code="title"></spring:message></title>
    </head>
    <body>
    	<a href="loginForm?request_locale=zh_CN">中文</a> | <a href="loginForm?request_locale=en_US">英文</a>
    	<form:form method="post" action="login">
    		<table>
    			<tr>
    				<td><spring:message code="userName"></spring:message></td>
    				<td><form:input path="userName"/></td>
    			</tr>
    			<tr>
    				<td><spring:message code="passWord"></spring:message></td>
    				<td><form:password path="passWord"/></td>
    			</tr>
    			<tr>
    				<td></td>
    				<td><input type="submit" value="<spring:message code="submit"></spring:message>"></td>
    			</tr>
    		</table>
    	</form:form>
    </body>
    </html>

**配置springmvc-config.xml**

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:p="http://www.springframework.org/schema/p"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
    
    <mvc:annotation-driven />
    
    <context:component-scan base-package="com.*" />
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    	<property name="prefix" value=""></property>
    	<property name="suffix" value=".jsp" />
    </bean>
    
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource"
    p:basenames="message"/>
    <mvc:interceptors>
    	<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"/>
    </mvc:interceptors>
    
    <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver" /> 
    </beans>

**创建UserController**

package com.controller;
    import java.util.Locale;
    import javax.servlet.http.HttpServletRequest;
    import org.springframework.context.i18n.LocaleContextHolder;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.servlet.i18n.SessionLocaleResolver;
    import com.po.User;
    @Controller
    public class UserController {
    	@RequestMapping("/loginForm")
    	public String loginForm(String request_locale,Model model,
    			HttpServletRequest request) {
    		System.out.println(request_locale);
    		if(request_locale!=null) {
    			//设置中文
    			if(request_locale.equals("zh_CN")) {
    				Locale locale=new Locale("zh","CN");
    				request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, locale);
    			}
    			//设置英文
    			else if(request_locale.equals("en_US")) {
    				Locale locale=new Locale("en","US");
    				request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, locale);
    			}
    		}
    		//使用之前的语言环境
    		else {
    			request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, LocaleContextHolder.getLocale());
    		}		
    		User user=new User();
    		model.addAttribute("command",user);
    		return "login";
    	}
    }

**启动Tomcat访问[http://localhost:8080/spring/loginForm][http_localhost_8080_spring_loginForm]**

**![70][]**

**控制台输出**

![70 1][]

**切换英文**

![70 2][]

**控制台输出**

![70 3][]

[http_localhost_8080_spring_loginForm]: http://localhost:8080/spring/loginForm
[70]: /images/20220516/fa717aa14c9b4452915c7a42fff92274.png
[70 1]: /images/20220516/fbefd407f2a34337b8a1958c561db5bd.png
[70 2]: /images/20220516/94f688e166ab4569bfa39fcd452229ad.png
[70 3]: /images/20220516/1977e42ae7f447dd9a8309ef0b918fa4.png