Spring boot: öffnet keine jsp-Dateien

Question

Ich entwickle einfache Spring Boot MVC-Anwendung. Obwohl ich viele Antworten auf SO gelesen habe, kann ich immer noch nicht reparieren, dass Spring Boot meine .jsp-Dateien nicht findet - es zeigt Whitelabel-Fehlerseite an.

Projektstruktur:

1. pom.xml

   <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.learnbook</groupId> 
        <artifactId>learnbook</artifactId> 
        <version>0.0.1-SNAPSHOT</version> 
        <packaging>war</packaging> 
        <name>LearnBook</name> 
        <description>We want to make the best courses in the market </description> 
   
        <parent> 
         <groupId>org.springframework.boot</groupId> 
         <artifactId>spring-boot-starter-parent</artifactId> 
         <version>1.5.3.RELEASE</version> 
        </parent> 
   
       <dependencies> 
   
         <!-- https://mvnrepository.com/artifact/javax.servlet/jstl --> 
         <dependency> 
          <groupId>javax.servlet</groupId> 
          <artifactId>jstl</artifactId> 
          <version>1.2</version> 
         </dependency> 
   
         <dependency> 
          <groupId>org.hibernate.common</groupId> 
          <artifactId>hibernate-commons-annotations</artifactId> 
          <version>4.0.4.Final</version> 
         </dependency> 
   
         <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager --> 
         <dependency> 
          <groupId>org.hibernate</groupId> 
          <artifactId>hibernate-entitymanager</artifactId> 
          <version>4.3.10.Final</version> 
         </dependency> 
   
         <dependency> 
          <groupId>org.springframework.boot</groupId> 
          <artifactId>spring-boot-starter-data-jpa</artifactId> 
         </dependency> 
   
         <dependency> 
          <groupId>org.springframework.boot</groupId> 
          <artifactId>spring-boot-starter-security</artifactId> 
         </dependency> 
   
         <dependency> 
          <groupId>org.springframework.boot</groupId> 
          <artifactId>spring-boot-starter-web</artifactId> 
         </dependency> 
   
         <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core --> 
         <dependency> 
          <groupId>org.hibernate</groupId> 
          <artifactId>hibernate-core</artifactId> 
          <version>4.3.11.Final</version> 
         </dependency> 
   
         <dependency> 
          <groupId>mysql</groupId> 
          <artifactId>mysql-connector-java</artifactId> 
          <scope>runtime</scope> 
         </dependency> 
   
         <dependency> 
          <groupId>org.springframework.boot</groupId> 
          <artifactId>spring-boot-starter-tomcat</artifactId> 
          <scope>provided</scope> 
         </dependency> 
   
         <dependency> 
          <groupId>org.springframework.boot</groupId> 
          <artifactId>spring-boot-starter-test</artifactId> 
          <scope>test</scope> 
         </dependency> 
   
         <dependency> 
          <groupId>org.springframework.security</groupId> 
          <artifactId>spring-security-taglibs</artifactId> 
         </dependency> 
   
         <dependency> 
          <groupId>commons-fileupload</groupId> 
          <artifactId>commons-fileupload</artifactId> 
          <version>1.3.1</version>  
         </dependency> 
   
         <!-- Apache Commons Upload --> 
         <dependency> 
          <groupId>commons-io</groupId> 
          <artifactId>commons-io</artifactId> 
          <version>2.4</version> 
         </dependency> 
   
         <dependency> 
          <groupId>com.cloudinary</groupId> 
          <artifactId>cloudinary-http44</artifactId> 
          <version>1.4.6</version> 
         </dependency> 
   
         <dependency> 
          <groupId>com.cloudinary</groupId> 
          <artifactId>cloudinary-taglib</artifactId> 
          <version>1.4.6</version> 
         </dependency> 
   
        </dependencies> 
   
        <build> 
         <plugins> 
          <plugin> 
           <groupId>org.springframework.boot</groupId> 
           <artifactId>spring-boot-maven-plugin</artifactId> 
          </plugin> 
         </plugins> 
        </build> 
   
   
        <properties> 
         <maven.compiler.target>1.8</maven.compiler.target> 
         <maven.compiler.source>1.8</maven.compiler.source> 
         <java.version>1.8</java.version> 
        </properties> 
       </project> 
   

2.LearnBookApplication.java

@EnableJpaRepositories(basePackages = "net.learnbook.repository") 
    @SpringBootApplication 
    public class LearnBookApplication { 

     public static void main(String[] args) { 
      SpringApplication.run(LearnBookApplication.class, args); 
     } 

     @Bean 
     @ConfigurationProperties(prefix = "datasource.main") 
     public DataSource siteDataSourceBean() { 
      return DataSourceBuilder.create().build(); 
     } 

     @Bean 
     public LocalContainerEntityManagerFactoryBean siteEntityManagerFactoryBean(EntityManagerFactoryBuilder builder) { 
      return builder.dataSource(siteDataSourceBean()).packages("net.learnbook.model").persistenceUnit("learnbookPU") 
        .build(); 
     } 

    } 

3.ServletInitializer.java

public class ServletInitializer extends SpringBootServletInitializer { 

     @Override 
     protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { 
      return application.sources(LearnBookApplication.class); 
     } 
    } 

4. web.xml

   <?xml version="1.0" encoding="UTF-8"?> 
   <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1"> 
       <display-name>learnbook</display-name> 
       <welcome-file-list> 
       <welcome-file>index.html</welcome-file> 
       <welcome-file>index.htm</welcome-file> 
       <welcome-file>index.jsp</welcome-file> 
       <welcome-file>default.html</welcome-file> 
       <welcome-file>default.htm</welcome-file> 
       <welcome-file>default.jsp</welcome-file> 
       </welcome-file-list> 
   </web-app> 
   

5. application.properties

   spring.mvc.view.prefix=/WEB-INF/views/ 
   spring.mvc.view.suffix=.jsp 
   security.basic.enabled=false 
   
   datasource.main.url: jdbc:mysql://localhost/learnbook?autoReconnect=true&useSSL=false 
   datasource.main.username:root 
   datasource.main.password:root 
   datasource.main.driverClassName:com.mysql.jdbc.Driver 
   
   spring.jpa.generate-ddl=true 
   spring.jpa.hibernate.ddl-auto:create-drop 
   spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect 
   spring.jpa.show-sql=true 
   

6. -Controller

   @Controller 
   public class ViewController { 
   
       @RequestMapping(value = "/", method = { RequestMethod.GET,RequestMethod.POST}, name = "home_index") 
       public String index() { 
        return "index"; 
       } 
   
   }' 
   

Answer 1

FYI

Von Frühling Boot-Dokumentation:

JSPs, wenn möglich, vermieden werden sollte, gibt es mehrere bekannte Einschränkungen, wenn sie mit eingebetteten Servlet-Container verwenden. Sie können nehmen weiter hier zu lesen:

http://docs.spring.io/spring-boot/docs/1.5.3.RELEASE/reference/htmlsingle/#boot-features-spring-mvc-template-engines

Ich glaube, dass dies bedeutet, wenn Sie noch JSP-Seiten verwenden möchten, dann werden Sie von den eingebetteten Kater loswerden müssen.