下面是基于session的，springMVC国际花的一个例子：　　　　

需求是

输入url：展示中文界面

http://localhost:8080/MySSM/user?lang=zh

输入url:  展示英文界面

http://localhost:8080/MySSM/user?lang=en

下面是我demo项目的例子使用：

1.工程结构：

2.springMVC配置文件中 国际化相关的配置：

注意我重新使用了自己的拦截器：com.cy.interceptor.LanguageInterceptor

因为原来的拦截器org.springframework.web.servlet.i18n.LocaleChangeInterceptor，浏览器必须要输入lang=en_US，lang=zh_CN,才能改变语言。但是觉得输入这么多麻烦，因为一般就认为zh中文，en英文了。

 

3.语言LanguageInterceptor.java:

我只是把LocaleChangeInterceptor源代码拷贝了一部分过来；做些修改，主要是：

localeResolver.setLocale(request, response, newLocale)设置语言了；

package com.cy.interceptor;import java.util.Locale;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.LocaleResolver;import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;import org.springframework.web.servlet.support.RequestContextUtils;/** * 语言拦截器 * @author CY * */public class LanguageInterceptor extends HandlerInterceptorAdapter{        /**     * Default name of the locale specification parameter: "locale".     */    public static final String DEFAULT_PARAM_NAME = "locale";    private String paramName = DEFAULT_PARAM_NAME;        public void setParamName(String paramName) {        this.paramName = paramName;    }    public String getParamName() {        return this.paramName;    }    @Override    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {        Locale newLocale = getLocale(request.getParameter(getParamName()));        LocaleResolver localeResolver = RequestContextUtils.getLocaleResolver(request);                if (localeResolver == null) {            throw new IllegalStateException("No LocaleResolver found: not in a DispatcherServlet request?");        }                localeResolver.setLocale(request, response, newLocale);                return true;    }        //根据language 获取Locale    public static Locale getLocale(String language){        Locale locale = new Locale("zh", "CN");        if(language!=null && language.equals("en")){            locale = new Locale("en", "US");        }                return locale;    }    }

4.如果想在controller中获取messages配置文件中的值怎么做呢？

下面是一部分代码：

import org.springframework.web.servlet.support.RequestContext;import org.springframework.web.servlet.support.RequestContextUtils;import java.util.ResourceBundle;@Controllerpublic class UserController {    private static Logger logger = Logger.getLogger(UserController.class);        @Autowired    private UserService userService;            /**     * 从国际化资源配置文件中根据key获取value  方法一     * @param request     * @param key     * @return     */    public static String getMessage(HttpServletRequest request, String key){        Locale currentLocale = RequestContextUtils.getLocale(request);        String lang = currentLocale.getLanguage();        ResourceBundle bundle = ResourceBundle.getBundle("messages_"+lang, currentLocale);        return bundle.getString(key);    }    /**     * 从国际化资源配置文件中根据key获取value  方法二     * @param request     * @param key     * @return     */    public static String getMessage2(HttpServletRequest request, String key){        RequestContext requestContext = new RequestContext(request);        String value = requestContext.getMessage(key);        return value;    }            @RequestMapping("/user")    public ModelAndView getUsers(HttpServletRequest request){        List
     
       userList = userService.getUsers();                 ModelAndView mv =  new ModelAndView();                  //从message中获取文字         //String showUserInfo = getMessage(request, "showUserInfo");         String showUserInfo = getMessage2(request, "showUserInfo");                  mv.addObject("showUserInfo", showUserInfo);         mv.addObject("userList", userList);         mv.setViewName("user");         return mv;    }    }
     

5.jsp中使用spring:message code:主要是：

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>

<spring:message code="userName"/>

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%><%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
      
      
      
    
       
${showUserInfo}
    
       
        
                  
         
            
          
                       
          
              
                       
          
          
         
          
         
            
          
                       
          
              
                       
          
          
         
          
         
            
          
                       
          
              
                       
          
          
         
          
         
            
          
                       
          
                
                       
          
          
         
        
                
        
            
         
              
          
                       
         
         
        
    
       
    
      

6.messages_zh.properties和messages_en.properties配置：

userManage=userManagementuserName=usernameage=agephotoName=photo namephoto=photoaddUser=add usershowUserInfo=this is display user information

userManage=\u7528\u6237\u7BA1\u7406userName=\u59D3\u540Dage=\u5E74\u9F84photoName=\u7167\u7247\u540D\u79F0photo=\u7167\u7247addUser=\u589E\u52A0\u7528\u6237showUserInfo=\u8FD9\u91CC\u662F\u5C55\u73B0\u7528\u6237\u4FE1\u606F

 

效果：

 

 

 

 

 

 

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