Spring Theme简单应用

Spring MVC特性里由一个是关于Spring Theme主题的应用，所以写了个Demo

1.这里先看项目结构（Meven项目）

　　

2.所需的POM依赖

<dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.0.5.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.0.5.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.0.5.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.0.5.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.0.5.RELEASE</version>
    </dependency>

3.Properties Theme文件配置

4.编写HTML文件

<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <link rel="stylesheet" href="<spring:theme code="color" />" type="text/css" />
</head>
<body>
<h1 class="red">你好，Hello Word</h1>
</body>
</html>

５.SpringMVC　XML配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <context:component-scan base-package="controller" />
    <context:annotation-config />
    <mvc:annotation-driven />

    <mvc:resources mapping="/statis/**" location="/statis/" />
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/" />
        <property name="suffix" value=".jsp" />
    </bean>

    <!--实际这里切换的是Properties的文件，而非Properties值，这里是指Properties的前缀-->
    <bean id="themeSource" class="org.springframework.ui.context.support.ResourceBundleThemeSource">
        <property name="basenamePrefix" value="theme-" />
    </bean>

    <!--实际这里切换的是Properties的文件，而非Properties值，这里是指前缀余下的部分，SPring使用时，会通过前缀和名称进行组合来获取指定的Properties文件-->
    <bean id="themeResolver" class="org.springframework.web.servlet.theme.SessionThemeResolver">
        <property name="defaultThemeName" value="style1" />
    </bean>

    <mvc:interceptors>
        <bean id="themeChangeInterceptor" class="org.springframework.web.servlet.theme.ThemeChangeInterceptor">
            <property name="paramName" value="theme"/>
        </bean>
    </mvc:interceptors>

</beans>

６.编写Controller

package controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class FormController {

    @RequestMapping(value = "/form")
    public ModelAndView user() {
        return new ModelAndView("form", "user","你好");
    }

}

备注：这样进行切换的时候，实际切换的是使用的文件，而JSP页面使用的Spring:Theme的Code属性实际是Theme　Properties文件里面的Key值。

附录：

　　Spring Framework官方文档：https://docs.spring.io/spring/docs/current/spring-framework-reference/web.html#mvc-themeresolver

W3C Spring MVC 4.2.4中文文档：https://www.w3cschool.cn/spring_mvc_documentation_linesh_translation/spring_mvc_documentation_linesh_translation-i79x27rz.html