本文使用 Spring Web model-view-controller (MVC) framework 建立一個簡單的一個Hello World 程式 1、請參考建立一個SpringMVC Annotation Project - Hello World此篇文章，以下是以此作為延伸 2. 文件放置位置
3. 建立Controller & Mapping 在Spring 3 裡大量使用 annotation 。 如： @Controller 目錄 : src/main/java/com/sample/web/controller 檔名 : HelloController.java 程式碼：
package com.sample.web.controller;
import java.util.Locale;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class HelloController{
@Autowired
MessageSource messageSource;
@RequestMapping(value = { "/", "/welcome**" }, method = RequestMethod.GET)
public ModelAndView welcomePage() {
System.out.println(messageSource.getMessage(
"hello.springmvc", null, Locale.CHINA));
System.out.println(messageSource.getMessage(
"hello.springmvc", null, Locale.ENGLISH));
System.out.println(messageSource.getMessage(
"hello.springmvc", null, Locale.TAIWAN));
return new ModelAndView("hello");
}
}5. 建立JSP 頁面 目錄 : src/main/webapp/WEB-INF/pages/ 檔名 : hello.jsp 程式碼： <%@ page contentType="text/html;charset=UTF-8" %> <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %> <html> <body> Language : <a href="?language=en">English</a>| <a href="?language=zh_CN">Chinese</a>| <a href="?language=zh_TW">Taiwan</a> <h3> hello.springmvc : <spring:message code="hello.springmvc" text="default text" /> </h3> Current Locale : ${pageContext.response.locale} </body> </html>
6. 建立properties 頁面 目錄 : src/main/resources/i18n 檔名 : messages_en.properties
檔名 : messages_zh_TW.properties
7. 建立AppConfig.java (Spring設定) 目錄 : src/main/java/com/sample/config 檔名 : AppConfig.java
package com.sample.config;
import java.util.Locale;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.LocaleResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.i18n.LocaleChangeInterceptor;
import org.springframework.web.servlet.i18n.SessionLocaleResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
@EnableWebMvc
@Configuration
@ComponentScan({ "com.sample.web.*" })
public class AppConfig extends WebMvcConfigurerAdapter{
/**
* 加入SPRING攔截器
*/
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(localeChangeInterceptor());
}
/**
* i18n 國際化(可改變區域)
* @return HandlerInterceptor
*/
@Bean
public HandlerInterceptor localeChangeInterceptor() {
LocaleChangeInterceptor localeChangeInterceptor
= new LocaleChangeInterceptor();
localeChangeInterceptor.setParamName("language");
return localeChangeInterceptor;
}
/**
* 區域解析器
* @return LocaleResolver
*/
@Bean
public LocaleResolver localeResolver() {
SessionLocaleResolver sessionLocaleResolver = new SessionLocaleResolver();
sessionLocaleResolver.setDefaultLocale(Locale.TAIWAN);
return sessionLocaleResolver;
}
/**
* i18n文件放置位置
* @return MessageSource
*/
@Bean
public MessageSource messageSource() {
ReloadableResourceBundleMessageSource messageSource
= new ReloadableResourceBundleMessageSource();
messageSource.setUseCodeAsDefaultMessage(true);
messageSource.setBasename("classpath:i18n/messages");
messageSource.setDefaultEncoding("UTF-8");
messageSource.setCacheSeconds(0);
return messageSource;
}
/**
* 頁面導向
* @return
*/
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver viewResolver
= new InternalResourceViewResolver();
viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/pages/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
}7. 結果呈現 A.預設語言:
C.繁體中文:
E.Console 顯示(Server 端):
ZK (1)
