SpringBoot+jsp项目启动出现404

通过maven创建springboot项目启动出现404application.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404Whitelabel Error PageThis application has no explicit mapping for /error, so you are seeing this as a fallback.Thu Feb 28 22:59:29 CST 2019There 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