我试图在Spring Boot应用程序中添加一个jsp页面。我的问题是,每次我尝试转到该页面时,我都会遇到以下问题:

白标错误页 此应用程序没有针对/错误的显式映射,因此您将其视为回退。

2022年4月26日星期二16:10:15 IRDT 出现意外错误(类型=未找到,状态=404)。 找不到JSP文件[/WEB-INF/JSP/home.JSP]

我已将前缀和sufix添加到我的应用程序中。属性:

spring.view.prefix: /WEB-INF/jsp/
spring.view.suffix: .jsp

这是我的控制器类:

@Controller
@RequestMapping("/")
public class HomeController {
@GetMapping("/")
public String index(){
    return "home";
}
}

控制器类中有1个警告:

Cannot resolve MVC view 'home'

my project folders picture

我的应用程序类别:

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

还有家。jsp:

<h1> hello world from jsp</h1>

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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.5.13</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>largesize.shop.app</groupId>
<artifactId>OnlineShop</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>OnlineShop</name>
<description>Online shopping web application</description>
<properties>
    <java.version>11</java.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency>
</dependencies>

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