通过maven创建springboot项目启动出现404

application.properties配置

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

项目结构

控制器方法

package com.example.demo.controller;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class IndexController { @RequestMapping("/") public String index() { return "index"; }}

启动项目访问localhost:8080，出现404

Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Thu Feb 28 22:59:29 CST 2019
There was an unexpected error (type=Not Found, status=404).
No message available

解决方法

pom.xml添加依赖

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

clean并刷新maven

重启并访问localhost:8080

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。