spring使用thymeleaf

一、spring使用thymeleaf做解析器其实很简单，这是基于xml配置的方式

<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.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
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">
    <context:component-scan base-package="com.test.controller"></context:component-scan>
    <!-- 开启mvc注解，可使用@DateTimeFormat,@NumberFormat -->
    <mvc:annotation-driven></mvc:annotation-driven>
 
    <!-- 告知静态文件不要拦截，直接访问，这种方式下面那种要好在可以访问web-info下的资源 -->
    <mvc:resources location="/WEB-INF/css/" mapping="/css/**"></mvc:resources>
    <mvc:resources location="/WEB-INF/js/" mapping="/js/**"></mvc:resources>
    <mvc:resources location="/WEB-INF/images/" mapping="/images/**"></mvc:resources>
 
    <!-- 配置默认servlet静态资源访问 -->
    <!-- <mvc:default-servlet-handler/> -->
 
    <!-- SpringResourceTemplateResolver automatically integrates with Spring's
        own -->
    <!-- resource resolution infrastructure, which is highly recommended. -->
    <bean id="templateResolver"
        class="org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver">
        <property name="prefix" value="/WEB-INF/templates/" />
        <property name="suffix" value=".html" />
        <!-- HTML is the default value, added here for the sake of clarity. -->
        <property name="templateMode" value="HTML" />
        <!-- Template cache is true by default. Set to false if you want -->
        <!-- templates to be automatically updated when modified. -->
        <property name="cacheable" value="false" />

　　　　<property name="characterEncoding" value="UTF-8"/>

</bean> <!-- SpringTemplateEngine automatically applies SpringStandardDialect and --> <!-- enables Spring's own MessageSource message resolution mechanisms. --> <bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine"> <property name="templateResolver" ref="templateResolver" /> <!-- Enabling the SpringEL compiler with Spring 4.2.4 or newer can speed up --> <!-- execution in most scenarios, but might be incompatible with specific --> <!-- cases when expressions in one template are reused across different data --> <!-- ypes, so this flag is "false" by default for safer backwards --> <!-- compatibility. --> <property name="enableSpringELCompiler" value="true" /> </bean> <bean class="org.thymeleaf.spring4.view.ThymeleafViewResolver"> <property name="templateEngine" ref="templateEngine" /> <!-- NOTE 'order' and 'viewNames' are optional --> <property name="order" value="1" />

        <property name="characterEncoding" value="UTF-8"/>

<!-- Controller中返回的视图名后缀包含leaf的，才会进行解析 --> <!-- <property name="viewNames" value="*leaf" /> --> </bean> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/jsps/" /> <property name="suffix" value=".jsp" /> <property name="order" value="" /> <!-- Controller中返回的视图名后缀包含jsp的，才会进行解析 --> <!-- <property name="viewNames" value="*jsp" /> --> </bean> </beans>

和我们传统的配置文件相比，也就多增加了红色的部分，如果你的项目不会使用到jsp，那么就没有必要再配置jsp的解析器了

二、基于注解的配置，首先这个web.xml需要改动成下面这个样子

<?xml version="1.0" encoding="utf-8"?>
 
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                      http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    version="3.1" metadata-complete="true">
 
    <!-- Configure ContextLoaderListener to use AnnotationConfigWebApplicationContext
        instead of the default XmlWebApplicationContext -->
    <context-param>
        <param-name>contextClass</param-name>
        <param-value>
            org.springframework.web.context.support.AnnotationConfigWebApplicationContext
        </param-value>
    </context-param>
 
    <!-- Configuration locations must consist of one or more comma- or space-delimited
        fully-qualified @Configuration classes. Fully-qualified packages may also be
        specified for component-scanning -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>com.test.dao.configure.ApplicationConfigure</param-value>
    </context-param>
 
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
 
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- Configure DispatcherServlet to use AnnotationConfigWebApplicationContext
            instead of the default XmlWebApplicationContext -->
        <init-param>
            <param-name>contextClass</param-name>
            <param-value>
                org.springframework.web.context.support.AnnotationConfigWebApplicationContext
            </param-value>
        </init-param>
        <!-- Again, config locations must consist of one or more comma-(逗号) or space-delimited（空格）
            and fully-qualified @Configuration classes -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>com.test.mvc.configure.SpringWebConfig</param-value>
        </init-param>
        <load-on-startup></load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
 
</web-app>

标红部分就是与传统web.xml配置的区别。

下面是声明thymeleaf的java配置方式

package com.test.mvc.configure;
 
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.format.FormatterRegistry;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.thymeleaf.spring4.SpringTemplateEngine;
import org.thymeleaf.spring4.templateresolver.SpringResourceTemplateResolver;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;
import org.thymeleaf.templatemode.TemplateMode;
 
import com.test.fomatter.MyDateFormatter;
 
@Configuration
@EnableWebMvc

@ComponentScan(basePackages = { "com.test.controller" }, includeFilters = {
  @ComponentScan.Filter(type = FilterType.ANNOTATION, classes = {
            org.springframework.stereotype.Controller.class }) })

public class SpringWebConfig extends WebMvcConfigurerAdapter implements ApplicationContextAware {
    private ApplicationContext applicationContext;
 
    public SpringWebConfig() {
        super();
    }
 
    public void setApplicationContext(final ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }
 
    /* ******************************************************************* */
    /* GENERAL CONFIGURATION ARTIFACTS */
    /* Static Resources, i18n Messages, Formatters (Conversion Service) */
    /*配置静态资源，i18n 信息， 格式转换器*/
    /* ******************************************************************* */
    @Override
    public void addResourceHandlers(final ResourceHandlerRegistry registry) {
        super.addResourceHandlers(registry);
        registry.addResourceHandler("/images/**").addResourceLocations("/images/");
        registry.addResourceHandler("/css/**").addResourceLocations("/css/");
        registry.addResourceHandler("/js/**").addResourceLocations("/js/");
    }
 
    @Bean
    public ResourceBundleMessageSource messageSource() {
        ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
        //设置国际化资源的baseName
        messageSource.setBasename("Messages");
        return messageSource;
    }
 
    /**
     * 添加转换器
     */
    @Override
    public void addFormatters(final FormatterRegistry registry) {
        super.addFormatters(registry);
        registry.addFormatter(varietyFormatter());
    }
 
    @Bean
    public MyDateFormatter varietyFormatter() {
        return new MyDateFormatter("yyyy-MM-dd");
    }
 
    /* **************************************************************** */
    /* THYMELEAF-SPECIFIC ARTIFACTS */
    /* TemplateResolver <- TemplateEngine <- ViewResolver */
    /* **************************************************************** */
    /**
     * thymeleaf的模板解析器
     * @return
     */
    @Bean
    public SpringResourceTemplateResolver templateResolver() {
        // SpringResourceTemplateResolver automatically integrates with Spring's
        // own
        // resource resolution infrastructure, which is highly recommended.
        SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
        templateResolver.setApplicationContext(this.applicationContext);
 
        templateResolver.setPrefix("/WEB-INF/templates/");
 
        templateResolver.setSuffix(".html");
        // HTML is the default value, added here for the sake of clarity.
        //模板解析模式使用HTML模式
        templateResolver.setTemplateMode(TemplateMode.HTML);
        // Template cache is true by default. Set to false if you want
        // templates to be automatically updated when modified.
        //是否缓存模板，默认是true，不过在调试的时候最好是false，因为模板随时需要改变
        templateResolver.setCacheable(false);
　　　　 templateResolver.setCharacterEncoding("utf-8");
        return templateResolver;
    }
 
    /**
     * thymeleaf的模板引擎
     * @return
     */
    @Bean
    public SpringTemplateEngine templateEngine() {
        // SpringTemplateEngine automatically applies SpringStandardDialect and
        // enables Spring's own MessageSource message resolution mechanisms.
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver());
        // Enabling the SpringEL compiler with Spring 4.2.4 or newer can
        // speed up execution in most scenarios, but might be incompatible
        // with specific cases when expressions in one template are reused
        // across different data types, so this flag is "false" by default
        // for safer backwards compatibility.
        templateEngine.setEnableSpringELCompiler(true);
        return templateEngine;
    }
 
    /**
     * thymeleaf的视图解析器
     * @return
     */
    @Bean
    public ThymeleafViewResolver viewResolver() {
        ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
        viewResolver.setTemplateEngine(templateEngine());

        templateResolver.setCharacterEncoding("utf-8");

　　　　 return viewResolver; 
　　} 
}