java视图未在Spring引导应用程序中呈现

Question

我正在使用Spring工具套装，并创建了新的Spring Starter项目

视图未在我的spring boot应用程序中呈现。我试着在各种网站上搜索，但没有得到任何有效的答案来解决这个问题

我不知道视图的默认位置，但据我在谷歌上搜索的结果，它应该在resources文件夹中

这是密码

主控制器

package com.example;

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

@Controller
public class MainController {

    @GetMapping("/")
    public String init() {
        return "index";
    }
}

应用程序。性质

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

Application class

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoApplication {

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

波姆。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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</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-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>

Answer 1

两天后我终于得到了答案

1. 添加了上述答案建议的依赖项

   <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <scope>provided</scope> </dependency>

二,。找到一个解决方案here

根据这个答案，我创建了一个源文件夹src/main/webapp，并在这个源文件夹中添加了/WEB-INF/jsp/index

Answer 2

您需要编译jsp

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <scope>provided</scope>
</dependency>

Answer 3

Spring引导通常不使用WEB-INF。将JSP移动到resources/templates，并从应用程序属性中删除行

Answer 4

如果您正在使用thymeleaf，请将您的。资源/模板中的html文件 但是，如果您使用的是jsp视图，请将。src/webapp/WEB-INF/jsp中的jpa文件

用于jsp 依赖关系-----------------------------------------

<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
</dependency>`

应用程序。性质

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