我正在尝试从控制器映射index1.jsp。
这是我的控制器方法代码：
@GetMapping({"/", "/hello"})
public String hello(Model model, @RequestParam(value="name", required=false, defaultValue="World") String name) {
model.addAttribute("name", name);
return "index1";
}
这是WebConfiguration:
@Configuration
public class WebConfiguration implements WebMvcConfigurer {
@Bean
public UrlBasedViewResolver viewResolver() {
UrlBasedViewResolver resolver
= new UrlBasedViewResolver();
resolver.setPrefix("/WEB-INF/jsp/");
resolver.setSuffix(".jsp");
resolver.setViewClass(JstlView.class);
return resolver;
}
}
这是index.jsp
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Quiz</title>
</head>
<body>
<h2>Hello ${name}!</h2>
</body>
</html>
这是应用程序。属性：
spring.application.name=quiz
server.port=8090
server.error.whitelabel.enabled=false
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
这是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 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>2.4.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<packaging>war</packaging>
<groupId>com.test</groupId>
<artifactId>quiz</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>quiz</name>
<description>Quiz app</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>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
我收到错误：HTTP状态500–内部服务器错误
这是来自控制台：
org.thymeleaf.exceptions.TemplateInputException: Error resolving template [index1], template might not exist or might not be accessible by any of the configured Template Resolvers
...
org.thymeleaf.exceptions.TemplateInputException: Error resolving template [index1], template might not exist or might not be accessible by any of the configured Template Resolvers
我认为它查找的是templates文件夹，而不是WEB-INF.jsp。如果我尝试从模板映射html文件，它是有效的。但使用JSP会产生问题。
这里是一个应用程序结构：
项目结构图片链接
如果您想使用Spring boot+JSP而不是thymelaf，则需要遵循以下步骤。
- 从pom.xml中删除thymelaf依赖项
- 在pom.xml中添加以下依赖项(Jasper编译JSP(
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<!-- Need this to compile JSP -->
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
请参阅https://mkyong.com/spring-boot/spring-boot-hello-world-example-jsp/了解更多信息。