Spring Boot app中的WEB-INF目录中未创建“resources”文件夹

Question

我有一个正在开发的Spring Boot应用程序，我最近将它从Spring3升级到Spring4(spring-boot-starter-parent 1.3.5.release到1.4.6.release）。

我在src/main/resources/templates目录中有一个html模板（名为'test-template.html')，我一直在使用Thymeleaf的TemplateEngine创建html电子邮件内容。（在升级到版本4之前，这是正常工作的。）

我目前遇到的问题是，没有在服务器上的WEB-INF中创建“模板”目录（或者在使用Maven构建时在“target”中的相关目录中）。因此，我得到了以下信息：

java.io.FileNotFoundException：无法打开ServletContext资源[/web-inf/templates/test-template.html]

下面是我对Thymeleaf的配置类。（我使用手动配置，因为我只使用Thymeleaf处理电子邮件模板，因此不希望Spring Boot配置Thymeleaf视图解析器。但是，我在自动配置时也会出现同样的错误。）

@Configuration
public class ThymeleafConfig implements ApplicationContextAware {

    private static final Logger logger = LoggerFactory.getLogger(ThymeleafConfig.class);

    private ApplicationContext applicationContext;

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

    @Bean
    public SpringTemplateEngine 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.setSuffix(".html");
        resolver.setTemplateMode(TemplateMode.HTML);
        return resolver;
    }

}

下面是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>com.example</groupId>
    <artifactId>myapp</artifactId>
    <version>1.0.10-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>myapp</name>
    <description>blah blah</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <start-class>com.matchingchina.AcumenApplication</start-class>
        <thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>
        <thymeleaf-layout-dialect.version>2.1.1</thymeleaf-layout-dialect.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>


        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>


        <dependency>
            <groupId>org.assertj</groupId>
            <artifactId>assertj-core</artifactId>
            <version>3.4.1</version>
        </dependency>


        <dependency>
            <groupId>org.apache.tiles</groupId>
            <artifactId>tiles-jsp</artifactId>
            <version>3.0.5</version>
        </dependency>


        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
        </dependency>


        <dependency>
            <groupId>org.imgscalr</groupId>
            <artifactId>imgscalr-lib</artifactId>
            <version>4.2</version>
        </dependency>

        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>

        <dependency>
            <groupId>com.sendgrid</groupId>
            <artifactId>sendgrid-java</artifactId>
            <version>3.2.1</version>
        </dependency>

        <!-- WEBJARS -->

        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>3.3.6</version>
        </dependency>

        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>font-awesome</artifactId>
            <version>4.6.1</version>
        </dependency>

    </dependencies>

</project>

Answer 1

将/web-inf/templates/更改为classpath:/template/。在类路径上并不一定意味着在web上下文路径上。