Struts2 learning (6) international configuration

Internationalization can make our website switch to Chinese, English or other national languages

The internationalization in Struts2 is i18n - Internationalization (in fact , there are 18 letters between the letters i and n )

The addition of internationalization makes the software have the function of switching the interface language and also greatly simplifies the realization of the internationalization function.

realization of internationalization

Just pass a simple configuration file and a Struts2 tag and a default i18n interceptor can be achieved.

Implementation steps:

Step 1: Add to the configuration file struts.xml

<!--Configure internationalization support-->
<constant name="struts.custom.i18n.resources" value="message"/>

Step 2: Create the following two files in the same directory as the struts.xml file.

message _en_US. properties (configure English information , note that the red part is the same as the value configured in struts.xml )

message _zh_CN. properties (configure Chinese information , note that the red part is the same as the value configured in struts.xml )

Note: The Chinese information here must be configured using ASCII code

The key values in the configured Chinese and English configuration files must be the same, and the value values are written in different languages.

The third step: use the struts tag in jsp to complete all the content of the interface

<%--
  Created by IntelliJ IDEA.
  User: icarus
  Date: 2016/7/2
  Time: 11:16
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
  <head>
    <title>index</title>
  </head>
  <body>
    <s:text name="login.title"/>
    <s:form action="ch06LoginAction" method="POST">
        <s:textfield name="username" key="login.username"/>
        <s:password name="password" key="login.password"/>
        <s:token></s:token>
        <%--The value of the value in submit here cannot be configured in the previous way
        This is a loophole in struts2 internationalization, you can't use key, but use value
        <s:submit key="login.submit"/>
        --%>
        <s:submit value="%{getText(login.submit)}"/>
    </s:form>
    <s:a href="ch06LoginAction.action?request_locale=zh_CN">中文</s:a>
    <s:a href="ch06LoginAction.action?request_locale=en_US">English</s:a>
  </body>
</html>

Note : When Struts2 is internationalized, the key cannot be used to specify the corresponding value in the submit submission form tag , but the value must be used . % is the reference to the string calculation value in the expression language .

After this configuration, run the project, you can choose a different language interface through the link.

Running interface:

When click on English , the corresponding request is:

http://localhost:8080/ch06LoginAction.action?request_locale=en_US

In this way, all the texts in the website are configured into different languages in the configuration file, so that the switching of different languages can be realized, or the interceptor can be used to obtain the lang value in the cookies to automatically set the language of the website.

Struts2 learning (6) international configuration

Guess you like