Java 解析模板时出错"；欢迎；，模板可能不存在，或者任何已配置的模板解析程序都无法访问该模板

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

<artifactId>spring-boot-web-thymeleaf</artifactId>
<packaging>jar</packaging>
<name>Spring Boot Web Thymeleaf Example</name>
<description>Spring Boot Web JSP Example</description>
<url>https://www.mkyong.com</url>
<version>1.0</version>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2.RELEASE</version>
</parent>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>

    <!-- hot swapping, disable cache for template, enable live reload -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <optional>true</optional>
    </dependency>
<!-- This is a web application -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!-- Tomcat embedded container-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>

    <!-- JSTL for 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>

    <!-- Need this to compile JSP,
        tomcat-embed-jasper version is not working, no idea why -->
    <dependency>
        <groupId>org.eclipse.jdt.core.compiler</groupId>
        <artifactId>ecj</artifactId>
        <version>4.6.1</version>
        <scope>provided</scope>
    </dependency>

    <!-- Optional, for bootstrap -->
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>bootstrap</artifactId>
        <version>3.3.7</version>
    </dependency>

</dependencies>
<build>
    <plugins>
        <!-- Package as an executable jar/war -->
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

WelcomeController.java

package com.mkyong;

import java.util.Map;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class WelcomeController {

// inject via application.properties
@Value("${welcome.message:test}")
private String message = "Hello World";

@RequestMapping("/")
public String welcome(Map<String, Object> model) {
    model.put("message", this.message);
    return "welcome";
}

}

package com.mkyong；
导入java.util.Map；
导入org.springframework.beans.factory.annotation.Value；
导入org.springframework.stereotype.Controller；
导入org.springframework.web.bind.annotation.RequestMapping；
@控制器
公共类WelcomeController{
//通过application.properties注入
@值（${welcome.message:test}”）
私有字符串message=“Hello World”；
@请求映射（“/”）
公共字符串欢迎（地图模型）{
model.put（“message”，this.message）；
返回“欢迎”；
}
}

welcome.jsp页面未访问

如果welcome.jsp被welcome.html替换，则输出正常（本例中没有问题）

但我不知道如何在这个春季启动应用程序中访问welcome.jsp文件

为什么html正在访问，为什么jsp没有访问？

---

请给出解决方案

我认为它是Spring版本：我将版本更改为1.4.1，然后>mvn clean install它对我有效。我使用

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>       
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>

org.springframework.boot
弹簧启动机tomcat
假如
org.apache.tomcat.embed
汤姆卡特·贾斯珀
假如

---

希望它有帮助

而不是.jsp文件，请尝试使用.html。您缺少以下依赖性

org.springframework.boot-spring-boot-starter-web

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>       
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-jasper</artifactId>
    <scope>provided</scope>
</dependency>