Thymeleaf Spring配置

Question

我正在尝试在Spring MVC应用程序中设置Thymeleaf，但出现了一些错误

这是我的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>thymeleaf</groupId>
    <artifactId>thymeleaf</artifactId>
    <version>1.0-SNAPSHOT</version>
    <properties>
        <spring.version>4.3.2.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring3</artifactId>
            <version>3.0.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring4</artifactId>
            <version>3.0.1.RELEASE</version>
        </dependency>
    </dependencies>
</project> 

下面是我的配置

package thyme.leaf.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.thymeleaf.spring4.SpringTemplateEngine;
import org.thymeleaf.spring4.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ServletContextTemplateResolver;

@Configuration
@EnableWebMvc
@ComponentScan("my.package")
public class WebConfig extends WebMvcConfigurerAdapter {

    @Bean
    public ViewResolver viewResolver(SpringTemplateEngine templateEngine) {
        ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
        viewResolver.setTemplateEngine(templateEngine);
        return viewResolver;
    }
    @Bean
    public SpringTemplateEngine templateEngine(TemplateResolver templateResolver) {
        SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.setTemplateResolver(templateResolver);
        return templateEngine;
    }

    @Bean
    public TemplateResolver templateResolver() {
        TemplateResolver templateResolver = new ServletContextTemplateResolver();
        templateResolver.setPrefix("/WEB-INF/views/");
        templateResolver.setSuffix(".html");
        templateResolver.setTemplateMode("HTML5");
        return templateResolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

}

问题出在我的方法中TemplateResolver类的某个地方。不幸的是，它根本找不到。我检查了org.thymeleaf.templateresolver包，我认为它应该在那里，但它不在那里

有谁能告诉我这里出了什么问题吗？

Answer 1

最终找到正确的实现：

public class WebConfig extends WebMvcConfigurerAdapter implements ApplicationContextAware {

        private ApplicationContext applicationContext;

        public void setApplicationContext(ApplicationContext applicationContext) {
            this.applicationContext = applicationContext;
        }

        @Bean
        public ViewResolver viewResolver() {
            ThymeleafViewResolver resolver = new ThymeleafViewResolver();
            resolver.setTemplateEngine(templateEngine());
            resolver.setCharacterEncoding("UTF-8");
            return resolver;
        }

        @Bean
        public TemplateEngine templateEngine() {
            SpringTemplateEngine engine = new SpringTemplateEngine();
            engine.setEnableSpringELCompiler(true);
            engine.setTemplateResolver(templateResolver());
            return engine;
        }

        private ITemplateResolver templateResolver() {
            SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
            resolver.setApplicationContext(applicationContext);
            resolver.setPrefix("/WEB-INF/templates/");
            resolver.setTemplateMode(TemplateMode.HTML);
            return resolver;
        }
    }

Answer 2

我不确定，但请尝试用@ComponentScan("thyme.leaf.config")更改@ComponentScan("my.package")。