本文使用 Spring Web model-view-controller (MVC) framework
建立一個簡單的一個Hello World 程式 且可判斷Mobile Tablet Desktop進入這頁面
有三種方式：
方式三：站點切換
指的是可以根據方式一以及方式二將使用者切換到適合網站的能力
此方式有四種方法使用(mDot, dotMobi, standard以及urlPath)
本文使用urlPath呈現效果
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、加入 spring-mobile-device.jar
3. Controller 部分
請參考建立一個SpringMVC Annotation Project 2-1 (判斷Mobile Tablet Desktop) - Hello World
4. 更改AppConfig 部分(Spring 設定) - 需繼承 WebMvcConfigurerAdapter
目錄 : src/main/java/com/sample/config
檔名 : AppConfig.java
package com.sample.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.mobile.device.DeviceResolverHandlerInterceptor;
import org.springframework.mobile.device.switcher.SiteSwitcherHandlerInterceptor;
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.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
@EnableWebMvc
@Configuration
@ComponentScan({ "com.sample.web.*" })
public class AppConfig extends WebMvcConfigurerAdapter{
/**
* 設備攔截器
* @return DeviceResolverHandlerInterceptor
*/
@Bean
public DeviceResolverHandlerInterceptor deviceResolverHandlerInterceptor() {
return new DeviceResolverHandlerInterceptor();
}
/**
* 網址切換攔截器
* 第一個参数用於指定mobile的路徑，第二个参数用於指定應用的root path
* @return SiteSwitcherHandlerInterceptor
*/
@Bean
public SiteSwitcherHandlerInterceptor siteSwitcherHandlerInterceptor() {
return SiteSwitcherHandlerInterceptor.urlPath("/m", "/SampleSpringMVC-2-3");
}
/**
* 加入SPRING攔截器
*/
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(deviceResolverHandlerInterceptor());
registry.addInterceptor(siteSwitcherHandlerInterceptor());
}
/**
* 頁面導向
* @return InternalResourceViewResolver
*/
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/pages/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
}
5.建立 SpringMvcInitializer.java(需要增加urlPattern)
目錄 : src/main/java/com/sample/config/code
檔名 : SpringMvcInitializer.java
package com.sample.config.core;
import javax.servlet.Filter;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration.Dynamic;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.filter.CharacterEncodingFilter;
import org.springframework.web.servlet.DispatcherServlet;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
import com.sample.config.AppConfig;
public class SpringMvcInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class[] getRootConfigClasses() {
return new Class[] { AppConfig.class };
}
@Override
protected Class[] getServletConfigClasses() {
return null;
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
@Override
protected Filter[] getServletFilters() {
CharacterEncodingFilter utf8Filter = new CharacterEncodingFilter();
utf8Filter.setEncoding("UTF-8");
utf8Filter.setForceEncoding(true);
return new Filter[] { utf8Filter };
}
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
AnnotationConfigWebApplicationContext rootContext
= new AnnotationConfigWebApplicationContext();
rootContext.register(AppConfig.class);
rootContext.setServletContext(servletContext);
rootContext.scan("com.sample.config");
Dynamic dynamic = servletContext.addServlet("mvc-dispatcher",
new DispatcherServlet(rootContext));
dynamic.addMapping("/","/m/*");
dynamic.setLoadOnStartup(1);
servletContext.addListener(new ContextLoaderListener(rootContext));
}
}
6.建立JSP 頁面
目錄 : src/main/webapp/WEB-INF/pages/
檔名 : hello.jsp
程式碼：
<html>
<body>
<h1>SpringMVC - Annotation :${message}</h1>
</body>
</html>
7.執行成功畫面：
URL = http://127.0.0.1:8081/SampleSpringMVC-2-3/
下一篇：
[JAVA_Spring]建立一個SpringMVC Annotation Project 2-3 (判斷Mobile Tablet Desktop) - Hello World
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