项目需求，切换多语言，采用

jQuery.i18n.min.js文件内容如下

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/*!
*jqueryi18n Plugin v1.0.0
* https://github.com/ZOMAKE/jquery.i18n
*
* Copyright 2017 ZOMAKE,Inc.
* Released under the Apache Licence 2.0
*/


(function($) {
$.fn.extend({
i18n: function(options) {
var defaults = {
lang: "",
defaultLang:"",
filePath:"/i18n/",
filePrefix:"i18n_",
fileSuffix:"",
forever: true,
callback: function() {}
};


function getCookie(name) {
var arr =document.cookie.split('; ');
for (var i = 0; i <arr.length; i++) {
var arr1= arr[i].split('=');
if(arr1[0] == name) {
return arr1[1];
}
}
return '';
};


function setCookie(name, value,myDay) {
var oDate = new Date();
oDate.setDate(oDate.getDate() + myDay);
document.cookie = name+ '=' + value + '; expires=' + oDate;
};


var options = $.extend(defaults,options);


if (getCookie('i18n_lang') != ""&& getCookie('i18n_lang') != "undefined" &&getCookie('i18n_lang') != null) {
defaults.defaultLang =getCookie('i18n_lang');
} else if (options.lang =="" && defaults.defaultLang == "") {
throw "defaultLangmust not be null !";
};


if (options.lang != null &&options.lang != "") {
if (options.forever) {
setCookie('i18n_lang', options.lang);
} else {
$.removeCookie("i18n_lang");
}
} else {
options.lang =defaults.defaultLang;
};


var i = this;
$.getJSON(options.filePath +options.filePrefix + options.lang + options.fileSuffix + ".json", function(data){
var i18nLang = {};
if (data != null) {
i18nLang= data;
}


$(i).each(function(i) {
vari18nOnly = $(this).attr("i18n-only");
if($(this).val() != null && $(this).val() != "") {
if (i18nOnly == null || i18nOnly == undefined || i18nOnly =="" || i18nOnly == "value") {
$(this).val(i18nLang[$(this).attr("i18n")])
}
}
if($(this).html() != null && $(this).html() != "") {
if (i18nOnly == null || i18nOnly == undefined || i18nOnly =="" || i18nOnly == "html") {
$(this).html(i18nLang[$(this).attr("i18n")])
}
}
if($(this).attr('placeholder') != null && $(this).attr('placeholder') !="") {
if (i18nOnly == null || i18nOnly == undefined || i18nOnly =="" || i18nOnly == "placeholder") {
$(this).attr('placeholder',i18nLang[$(this).attr("i18n")])
}
}
});
options.callback();
});
}
});
})(jQuery);

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将语言文件放到webapp的i18n目录下

i18n_chinese.json类似内容如下

{

"code":"邮编",

"contactTelephone":"联系电话",

"email":"邮箱"}

i18n_english.json

{

"code":"Code",

"contactTelephone":"ContactTelephone",

"email":"Email"}

想要切换语言 给标签添加i18n属性

如<lii18n="code">邮编</li>

我是通过Cookie方式绑定当前语言的，提取language.jsp如下：

<!DOCTYPEhtml>

<%@pagelanguage="Java"pageEncoding="UTF-8"%>

<scripttype="text/JavaScript"src="${ctx}/anfangyun/js/jquery.i18n.min.js"></script>

<script>

functionsetCookieLanguage(name,value) {

document.cookie = name +'='+ value ;

};

functiongetCookieLanguage(name) {

vararr = document.cookie.split('; ');

for(vari = 0; i < arr.length; i++) {

vararr1 = arr[i].split('=');

if(arr1[0] == name) {

returnarr1[1];

}

}

return'';

};

$(function(){

//切换语言begin

//获取浏览器默认语言

varlanguageType =navigator.browserLanguage?navigator.browserLanguage:navigator.language;

if(languageType.indexOf('zh')>-1 &&getCookieLanguage("languageCookie")==""){

$("[i18n]").i18n({defaultLang:"chinese"});

}

if(languageType.indexOf('en')>-1 &&getCookieLanguage("languageCookie")==""){

$("[i18n]").i18n({defaultLang:"english"});

}

if(languageType.indexOf('ru')>-1 &&getCookieLanguage("languageCookie")==""){

$("[i18n]").i18n({defaultLang:"russian"});

}

//切换为中文-按钮

$("#chinese").click(function() {

$("[i18n]").i18n({defaultLang:"chinese"});//选择文件i18n_chinese.json

setCookieLanguage("languageCookie","chinese");

});

//切换为英文-按钮

$("#english").click(function() {

$("[i18n]").i18n({defaultLang:"english"});//选择文件i18n_english.json

setCookieLanguage("languageCookie","english");

});

//切换为俄文-按钮

$("#russian").click(function() {

$("[i18n]").i18n({defaultLang:"russian"});//选择文件i18n_russian.json

setCookieLanguage("languageCookie","russian");

});

//点击后有cookie，定位选择文件名字

if(getCookieLanguage("languageCookie").indexOf("chinese")>-1){

$("#chinese").addClass('cur');

$("[i18n]").i18n({defaultLang:"chinese"});

//更改头部图片

$(".afy_hd_capt").css("background-p_w_picpath","url(${ctx}/anfangyun/p_w_picpaths/afy_hd_capt.png)");

$(".afy_hd_dire").css("background-p_w_picpath","url(${ctx}/anfangyun/p_w_picpaths/afy_hd_dire.png)");

}

if(getCookieLanguage("languageCookie").indexOf("english")>-1){

$("[i18n]").i18n({defaultLang:"english"});

}

if(getCookieLanguage("languageCookie").indexOf("russian")>-1){

$("[i18n]").i18n({defaultLang:"russian"});

}

//切换语言end

});

</script>

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