我正在尝试在我的 Spring 引导应用程序中添加一个 jsp 页面。我的问题是,每次我尝试访问该页面时,我都会遇到以下问题:
I'm trying to add a jsp page in my Spring Boot Aplication. My problem is that every time I try to go to that page I have this:
白标错误页面
此应用程序没有 /error 的显式映射,因此您将其视为后备。
4 月 26 日星期二 16:10:15IRDT 2022
出现意外错误(类型=未找到,状态=404)。
JSP 找不到文件 [/WEB-INF/jsp/home.jsp]
我已将前缀和后缀添加到我的 application.properties:
spring.view.prefix: /WEB-INF/jsp/
spring.view.suffix: .jsp
这是我的控制器class:
@Controller
@RequestMapping("/")
public class HomeController {
@GetMapping("/")
public String index(){
return "home";
}
}
我在控制器中有 1 个警告 class :
Cannot resolve MVC view 'home'
my project folders picture
我的申请class:
@SpringBootApplication
public class OnlineShopApplication {
public static void main(String[] args) {
SpringApplication.run(OnlineShopApplication.class, args);
}}
和home.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>
您似乎缺少名为 home
的模板。您需要创建此模板并将其存储在 \src\main\resources\templates
下
该模板是一个 html 文件,您要将来自 spring 的响应返回到该文件。它应该是这样的:
project-directory
->src
->main
->java->com->...etc
->resources
->static
->templates
home.html
other_file.html
application.properties
->test
也停止使用特定版本。使用这个:
<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>
还回滚到 TomCat 9,因为不支持 10。
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>9.0.19</version>
</dependency>
您可以从 The MVN Repository
中获取这些依赖项
更改以下内容:
spring.view.prefix: /WEB-INF/jsp/
spring.view.suffix: .jsp
至:
spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp
当我打开项目时,我打开了包含该项目的文件夹,该文件夹比主项目文件夹高一卷。
白标错误页面 此应用程序没有 /error 的显式映射,因此您将其视为后备。
4 月 26 日星期二 16:10:15IRDT 2022 出现意外错误(类型=未找到,状态=404)。 JSP 找不到文件 [/WEB-INF/jsp/home.jsp]
我已将前缀和后缀添加到我的 application.properties:
spring.view.prefix: /WEB-INF/jsp/
spring.view.suffix: .jsp
这是我的控制器class:
@Controller
@RequestMapping("/")
public class HomeController {
@GetMapping("/")
public String index(){
return "home";
}
}
我在控制器中有 1 个警告 class :
Cannot resolve MVC view 'home'
my project folders picture
我的申请class:
@SpringBootApplication
public class OnlineShopApplication {
public static void main(String[] args) {
SpringApplication.run(OnlineShopApplication.class, args);
}}
和home.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>
您似乎缺少名为 home
的模板。您需要创建此模板并将其存储在 \src\main\resources\templates
下
该模板是一个 html 文件,您要将来自 spring 的响应返回到该文件。它应该是这样的:
project-directory
->src
->main
->java->com->...etc
->resources
->static
->templates
home.html
other_file.html
application.properties
->test
也停止使用特定版本。使用这个:
<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>
还回滚到 TomCat 9,因为不支持 10。
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<version>9.0.19</version>
</dependency>
您可以从 The MVN Repository
中获取这些依赖项更改以下内容:
spring.view.prefix: /WEB-INF/jsp/
spring.view.suffix: .jsp
至:
spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp
当我打开项目时,我打开了包含该项目的文件夹,该文件夹比主项目文件夹高一卷。