JavaEE多语言功能实现

Java EE实现多语言的方法有很多种，特别我采用的还是SSH框架，比如：struts的国际化，配置文件.properties，数据库；

项目已经完成了一大部分功能，里面jsp界面的标签还是使用html的标签并未使用status的标签（jsp界面，图片含有中文），并且在.java程序和.js文件里面也有很多的汉字。我这里采用的方法为配置文件.properties，每一种语言新增一个对应的.properties，目前有chinese.properties、english.properties，japanese.properties；

 

文件.properties的加载和获取类

/**

 *@Title: SysTextConfig.java

 *@Package: org.csun.ns.conf

 *@Description: TODO

 *@Author: chisj chisj@foxmail.com

 *@Date: 2016年2月15日下午1:52:10

 *@Version V1.0

 */

package org.csun.ns.conf;

 

import java.io.File;

import java.io.InputStream;

import java.util.Properties;

 

/**

 *@ClassName: SysTextConfig

 *@Description: TODO

 *@Author: chisj chisj@foxmail.com

 *@Date: 2016年2月15日下午1:52:10

 *

 */

public class SysTextConfig {

        

         privatestatic Properties properties = null; //读取properties的资源文件

   private static String filePath = null; //保存properties文件的绝对路径

   

   static { //初始化static变量的值

             filePath ="chinese.properties";

             loadSysConfigFile();

    }

   

   private static void loadSysConfigFile() {

             properties = new Properties();

             InputStream inputStream =SysTextConfig.class.getClassLoader().getResourceAsStream(filePath);

             try {

                       properties.load(inputStream);

             } catch (Exception e) {

           // TODO Auto-generated catch block

           e.printStackTrace();

       }

    }

   

   public static void loadSysConfigFile(String newFilePath) {

             System.out.println("---loadSysConfigFile---" + newFilePath);

             properties = new Properties();

             InputStream inputStream =SysTextConfig.class.getClassLoader().getResourceAsStream(newFilePath);

             try {

                       properties.load(inputStream);

             } catch (Exception e) {

           // TODO Auto-generated catch block

           e.printStackTrace();

       }

    }

   

   public static String getConfigInfo(String key) {

             String value = "";

             try {

                       value =properties.getProperty(key);

       } catch (Exception e) {

           e.printStackTrace(); 

       } 

      return value;    

   }

        

}

 

JSP界面：

<%@page
import="org.csun.ns.conf.SysTextConfig"%>

<%=SysTextConfig.getConfigInfo("lang")%>

 

JS文件：

<input
type="hidden"id="not"
name="not"value="<%=SysTextConfig.getConfigInfo("not")%>">
                   <input
type="hidden"id="points"
name="points"value="<%=SysTextConfig.getConfigInfo("points")%>">

 

var points = document.getElementById("points").value;
   var not =document.getElementById("not").value;

 

.Java文件：

this.getSession().setAttribute("errorMsg",SysTextConfig.getConfigInfo("errorMsg_0"));

 

加载用户选择的语言：

languageFile =
ntUserBiz.getLanguageFile(ntUser.getLanguage());
                   SysTextConfig.loadSysConfigFile(languageFile);

 

Jquery显示所有的语言选择：

function get_language() {
        
         var userIdId =
"userId";
         var userId =document.getElementById(userIdId).value;
        
         $.ajax({
            type: "post",
            url: "LanguageShow.action",
            dataType: "json",
            data: {"userId": userId},
            success: function(data) {
                var
d = eval("(" + data +
")");
                for
(var i = 0; i < d.length; i++) {
                   var
id = d[i].languageId;
                   var
name = d[i].languageName;
                   var
opt = "<option value='" + id +
"'>" + name + "</option>";
                   $("#languageSelect").append(opt);
                }
            },
            error: function() {
                alert("系统异常，请稍后再试！");
            }
         });
     
      }
  
      $(document).ready(function() {
         get_language();
      });

Html界面

<div
id="language"class="div_1">
      <select
id="languageSelect"
name="lanageSelect"
onchange="javascript:languageChoose()">
      </select>
   </div>

 

Action对应的方法：

public String languageShow() {
      System.out.println("---languageShow---");
      System.out.println("userId = "+
userId);
      List<Language>languages=
newArrayList<Language>();
     
      try {
         languages =
ntLanguageImpl.languageShow(userId);
         System.out.println("languages size = "+
languages.size());
         JSONArrayjsonArray= JSONArray.fromObject(languages);
         result = String.valueOf(jsonArray);
      }catch(Exception
e) {
         e.printStackTrace();
      }
     
      return SUCCESS;
   }

 

Biz对应的方法：

public List<Language> languageShow(String
userId) {
      // TODO Auto-generated method stub
      ShortLANGUAGE= 1;
      int
flag = 1;
      List<Language>languages=
newArrayList<Language>();
      List<NtLanguage>ntLanguages=
newArrayList<NtLanguage>();
      ntLanguages = ntLanguageDAO.findAll();
      NtUserntUser= newNtUser();
      try {
         if (null ==
ntLanguages) {
            return
null;
         }
         System.out.println("userId = "+
userId);
         ntUser =
ntUserDAO.findById(Long.parseLong(userId));
         //System.out.println("language = " +ntUser.getLanguage());
        
         if (null ==
ntUser.getLanguage()) {
            ntUser.setLanguage(LANGUAGE);
            ntUserDAO.update(ntUser);
            flag = 0;
         }
        
         for (NtLanguage
nl : ntLanguages) {
            Languagelanguage=
newLanguage();
            System.out.println("id = "+
nl.getLanguageId());
            language.setLanguageId(nl.getLanguageId());
            language.setLanguageName(SysTextConfig.getConfigInfo(nl.getLanguageName()));
            //System.out.println("language = " +ntUser.getLanguage());
            if (1 ==
flag && ntUser.getLanguage().equals(nl.getLanguageId())) {
                System.out.println("equals...");
                languages.add(0,
language);
            }else{
                languages.add(language);
            }
         }
      }catch(Exception
e) {
         e.printStackTrace();
      }
     
      return
languages;
   }

 

下拉框对应的方法

Action

public String languageChoose() {
      System.out.println("---languageChoose---");
      System.out.println("languageId = "+
languageId);
      try {
         langageFile =
ntLanguageImpl.languageChoose(languageId,
userId);
         System.out.println("langageFile = "+
langageFile);
         SysTextConfig.loadSysConfigFile(langageFile);
         this.getRequest().setAttribute("change","true");
         result =
"ok";
      }catch(Exception
e) {
         e.printStackTrace();
      }
      return
result;
   }

Biz：

public String languageChoose(String
languageId, String
userId){
      // TODO Auto-generated method stub
      NtUserntUser= newNtUser();
      try {
        
         ntUser =
ntUserDAO.findById(Long.parseLong(userId));
        
         ntUser.setLanguage(Short.parseShort(languageId));
        
         ntUserDAO.update(ntUser);
        
      }catch(Exception
e) {
         e.printStackTrace();
      }
     
      return
ntLanguageDAO.findById(Short.parseShort(languageId)).getLanguageFile();
   }

 

JS代码：

function languageChoose() {
   var languageSelectId =
"languageSelect";
   var userIdId =
"userId";
   var languageId = document.getElementById(languageSelectId).value;
   var userId =document.getElementById(userIdId).value;
   //alert(languageId);
   var url =
"LanguageChoose.action";
   post(url,{'languageId':languageId,'userId':userId});
}
 
function languageOnload(change) {
   if (change ==
'true') {
      window.parent.left.location.reload();
      window.parent.right.location.reload();
      window.parent.bottom.location.reload();
      //document.title = "123";
   }
}

 

大致的流程如下：