java – Spring-Boot MVC模板未加载(404未找到)

我有一个非常简单的Spring-Boot MVC应用程序在这里不工作。一个控制器,一个页面未加载并且接收到404未找到。

我在控制器方法中放置了一个System.out.println(“Home Page”)语句,并验证它被映射并正确触发,但模板未加载。

错误:

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Thu Nov 06 23:43:51 EST 2014
There was an unexpected error (type=Not Found, status=404).

文件夹结构:

src/main/java
 +-Application.java
 +-WebController.java

src/main/resources
 +-templates
   +-index.html

简称控制台输出:

Server initialized with port: 8080
Starting service Tomcat
Starting Servlet Engine: Apache Tomcat/7.0.55
Initializing Spring embedded WebApplicationContext
Root WebApplicationContext: initialization completed in 1947 ms
Mapping servlet: 'dispatcherServlet' to [/]
Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
Mapped "{[/],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String app.WebController.index()
Tomcat started on port(s): 8080/http
Started Application in 5.552 seconds (JVM running for 6.366)
Home Page
Home Page
Home Page

组态:

@EnableAutoConfiguration
@Configuration
@ComponentScan
public class Application extends WebMvcConfigurerAdapter {
    public static void main(String[] args) {
         ConfigurableApplicationContext context = SpringApplication.run(Application.class);
    }
}

控制器:

@Controller
public class WebController {
    @RequestMapping(value="/")
    public String index(){
        System.out.println("Home Page");
        return "index";
    }
}

index.html:

<!DOCTYPE html>
<html lang="en">
<body>
 <h1>Hello</h1>    
</body>
</html>

我有一个非常简单的Spring-Boot MVC应用程序在这里不工作。一个控制器,一个页面未加载并且接收到404未找到。

我在控制器方法中放置了一个System.out.println(“Home Page”)语句,并验证它被映射并正确触发,但模板未加载。

错误:

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.

Thu Nov 06 23:43:51 EST 2014
There was an unexpected error (type=Not Found, status=404).

文件夹结构:

src/main/java
 +-Application.java
 +-WebController.java

src/main/resources
 +-templates
   +-index.html

简称控制台输出:

Server initialized with port: 8080
Starting service Tomcat
Starting Servlet Engine: Apache Tomcat/7.0.55
Initializing Spring embedded WebApplicationContext
Root WebApplicationContext: initialization completed in 1947 ms
Mapping servlet: 'dispatcherServlet' to [/]
Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
Mapped "{[/],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String app.WebController.index()
Tomcat started on port(s): 8080/http
Started Application in 5.552 seconds (JVM running for 6.366)
Home Page
Home Page
Home Page

组态:

@EnableAutoConfiguration
@Configuration
@ComponentScan
public class Application extends WebMvcConfigurerAdapter {
    public static void main(String[] args) {
         ConfigurableApplicationContext context = SpringApplication.run(Application.class);
    }
}

控制器:

@Controller
public class WebController {
    @RequestMapping(value="/")
    public String index(){
        System.out.println("Home Page");
        return "index";
    }
}

index.html:

<!DOCTYPE html>
<html lang="en">
<body>
 <h1>Hello</h1>    
</body>
</html>

POM:

<?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.App</groupId>
    <artifactId>App</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <name>App</name>
    <description>App</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.1.8.RELEASE</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>   
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</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-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <version>1.4.181</version>
        </dependency>
        <!--dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-redis</artifactId>
        </dependency--> 
        <dependency>
            <groupId>com.firebase</groupId>
            <artifactId>firebase-client</artifactId>
            <version>1.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
            <version>2.10.4</version>
        </dependency>
    </dependencies>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <start-class>App.Application</start-class>
        <java.version>1.7</java.version>
    </properties>

    <repositories>
        <repository>
            <id>spring-releases</id>
            <name>Spring Releases</name>
            <url>http://repo.spring.io/libs-release</url>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>spring-releases</id>
            <name>Spring Releases</name>
            <url>http://repo.spring.io/libs-release</url>
        </pluginRepository>
    </pluginRepositories>   

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>
看起来你的课程路径上没有Thymeleaf。

添加此依赖关系:

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

一切都应该工作。

如果您仍然面临一些问题,建议您使用http://start.spring.io/创建新项目

翻译自:https://stackoverflow.com/questions/26794334/spring-boot-mvc-template-not-loading-404-not-found

转载注明原文:java – Spring-Boot MVC模板未加载(404未找到)