SpringBootServletInitializer 导致白标错误

时间:2021-05-20 12:04:50

标签: java spring spring-boot

我正在学习有关 Spring MVC 的在线课程。 在课程中,讲师正在添加一个简单的控制器和一个简单的 jsp 页面。 此外,应用程序类正在扩展 SpringBootServletInitializer

我的 index.html 文件在 src/main/webapp 中,我的 jsp 文件在 src/main/webapp/WEB-INF/jsp 中 我还相应地添加了 spring.mvc.view.prefix/suffix

出于某种原因,当我在课程中达到这一点时,将 SpringBootServletInitializer 扩展到我的主视图 (index.html) 会导致白标错误,但 jsp 文件的路径工作正常。

我尝试了一些建议,例如将 @Controller 更改为 @RestController 或删除 SpringBootServletInitializer,但没有奏效(删除 SpringBootServletInitializer 在查找jsp页面)。

这是我的代码:

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>2.4.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.pluralSight</groupId>
    <artifactId>conference</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>conference</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </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>
    </dependencies>

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

</project>

控制器:

package com.pluralSight.conference.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;


import java.util.Map;

@Controller
public class GreetingController {

    @GetMapping("greeting")
    public String greeting(Map<String, Object> model){
        model.put("message","Hello Daniel");
        return "greeting";
    }
}

应用类:

package com.pluralSight.conference;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

@SpringBootApplication
public class ConferenceApplication extends SpringBootServletInitializer{

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

}

application.properties:

spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

0 个答案:

没有答案
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