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Developing I18N Applications in JSF
17 September, 2018
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Abc-en-us.properties
Welcome=welcome to en use users
Abc-it-IT. properties
Welcome=welcome to it IT users
Abc-it-IN. properties
Welcome=welcome to it IN users
FORM.HTML -
<html>
<body>
<from method=”post ”action=”/i18n”>
<table>
<tr><td>select language</tr><td> select country </td></tr>
<td>
< select name=”language”>
<option value=”en”> English</option>
< option value=”it”> Italian</option >
< option value=”hi”> Hindi</option >
</select>
</td>
<td>
<select name=”country”>
<option value”us”> numerical<10prion>
<option value”it”> Itali<10prion>
<option value”in”> India<10prion>
</select>
</td></tr>
<tr><td><input type=”submit” value=”SUBMITLY”>
</td></tr></TABLE>
</FROM></body></html>
I18N Sevlet java -
Package com. soft;
Import java. text.*;
Import java. util.*;
Import java. servlet. servlet exception;
Import java. servlet. servlet annotation. Web servlet;
Import java. servlet. http*;
@web servlet(“/i18n”)
Public class I18N servlet extends http servlet
{
Protected void dopost(http servlet request)request,
Http servletResponse response throws servlet exception,
IoException
Try{
String language=request. getparameter(“language”);
String country=request. getparameter(“country”);
Locale I = new loaf(Language, country);
Number format nf=number format. Getinstance(i);
Date format df= data format.getDataInstance (o,l);
Resource bundle rb= ResourceBundle .getBundle(“abc” ,l);
Print writer out= response. GetWriter();
Out. println(“<html>”)
Out. println(“<body>”)
Out. println(“<h1>”)
Out. println(“number:”+nf. format(1345.2345)+”<br>”);
Out. println(“date:”+nf. format(new date())+”<br>”);
Out. println(“message:”+rb. Get string(“welcome”));
Out. println(“</h1></body></html>”);
}catch(Exception e){
e.print stack trace();
}
}
}
- If we use the above approach to provid II8N Support then every time user has to specify lang country, it is not suggestible in web applications.
- To overcome the above problems, we have to provide I18N Support with out depending on the user, by getting client browser provided language setup
- When we submit a request from a client browser then browser provided lang will be send to server in the from at “accept lang” request header, here it we get “accept-language” request header value then it is possible to identify from which local the request is coming, with this, we are able to provide I18N Support without specifying lang & country by the user
- To get a particular request header value, we have to use the following method from servlet request, public string get header (String header-name)
- Public class I18N Servlet extends Http servlet{ = IL; Protected void do Get(Http Servlet Request request, Http Servlef Response response) Throws servlet Exception, Ioexception{
Abc-en. properties
Header1=Durga software solutions
Header2=Registration Form
Sid=student Id
Sname=student Name
Semail=email id
Smobile=contact no
Button=registration
Success=student registration success
Failure=student registration failure
Abc-it. Properties
Header1=Durga software solutions
Header2=Registration Form
Sid=student Id
Sname=student Name
Semail=email id
Smobile=contact no
Button=registration
Success=student registration success
Failure=student registration failure
Abc-te. Properties
Header1= software solutions
Header2=Darakstu patram
Sid=vidyardu Gurdimpu snkya
Sname= vidyardi peru
Semail= vidyuth samachara Gurthimlu
Smobile= sampradimpu sankya
Button=Darakasthu
Success=Vidyardi Darakastu safalamayinadhi
Failure= Vidyardi Darakastu cifalamayinadhi
Index.html
<!Doctype html public11413c11D+D HTML 4.01
Transitional //EN””http://www.k13.org/TR/html14/loose.dtd”>
<html>
<head>
<meta http-equiv=”Refresh”
Content=”2:URL=http://local host:1010/I18napp/registrationform.dss”>
<title>insert title here</title>
</head>
<body>
<h1>Application IS Loading….</h1>
</body>
</html>
Registrationform.JSP
<%@Page language=”java”content type=”text/html;
Charset=ISO-8859-1”page encoding=”ISO-8859-1”>
%>
<%@taglib prefix=”f”url=
-------”h”------
<!DOCTYPE___
---------------------------dtd”>
<html>
<head>
<meta http-equiy=”content-type ”content=”text/html;
Charset=ISO-8859-1”>
<title>insert title here</title >
</head>
<body>
<f:view>
<h:form>
<h:panelGrid columns=”2”>
<h:output text value=”#{msg.sid}”/>
<h:input text id=”sid” value=”#{regBean.sid}”/>
<h: output text value=”#{msg. sname}”/>
<h:input text id=”s name” value=”#{reg Bean. S name }”/>
<h: output text value=”#{msg. s name}”/>
<h:input text id=”s email” value=”#{reg Bean. S email }”/>
<h: output text value=”#{msg. s mobile}”/>
<h:input text id=”s mobile” value=”#{reg Bean. S mobile}”/>
<h:command button value =”#{msg.button}”action”#{ reg Bean. registration}”/>
</h:panelGrid>
</h:from>
</f:view>
</body></html>
Success. Jsp
<%@page language=”java” content type=”text/html,
Charset=ISO-8859-1”page encoding=”ISO-8859-“%>
<%@taglib prefix=”f”>
”r”
</Doc type>
<html>
<head>
<meta http-equiy=”content-type ”content=”text/html;
<title>Insert title here</ title >
<head>
<body>
<f:view>
<h1><h:output text value=”#{msg. success}”/></h1>
</f:view>
</body></html>
Failure.jsp
<%@page
__________
<html>
<head>
<meta http-equiy=”content-type
<h1><h:output text value=”#{msg.failure}”/></her>
</f:view>
</body></html>
Registration Bean.java
Package com. soft;
Import java. util locate;
Import javax. faces. component. UIview Root;
Import javax. faces. context. Faces context;
Public class Registration bean{
Private string sid;
Private string sname;
Private string semail;
Private string smobile;
- ---- -- - getter()setter()
Public string registration(){
String status=””;
If (sid. starts with(“DSS-”)){
Status=”success”;
}else{
Status=”failure”;
}
Return status;
}
Public string get Registration form(){
Return” Registration form”;
}
}
Faces-config.xml
<?xml version=”1.0”encoding=”UTF-8”?>
<Faces-config
Xmlns=”http://Java.sun.com/xml/ns/java”
Version=”1,2”>
<managed-bean>
< managed-bean -name>reg Bean< /managed-bean-name >
< managed-bean -class>com. Durga soft. Registration Bean
< managed-bean -scope>session
< managed-bean>
< navigation-rule>
< from-view-id>/registration form.jsp</ >
< navigation-case>
< from-outcome>success</from-outcome>
<to-view-id>/success.jsp</to-view-id>
</navigation-case>
<navigation-case>
<from-outcome>failure< >
<to-view-> failure.jsp< >
</navigation-case>
</navigation-rule>
<navigation-rule>
<from-view-id >/menu.jsp< >
</navigation-case>
<from-outcome >registration form</from-outcome>
<to-view-> registration form.jsp</ >
</navigation-case>
</navigation-rule>
<application>
<local-config>
<default-locale>en</default-locale>
<supported-locale>it</ >
<sup >te</ >
</locale-config>
<resource-bundle>
<base-name>abc</base-name>
<var <msg</var>>
</resource-bundle>
</application>
</faces-config>
Web.xml
Same as prev. applications.