SpringBoot+jsp项目启动出现404

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;

@Controller
public 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

    org.apache.tomcat.embed
    tomcat-embed-jasper


    javax.servlet
    jstl

• clean并刷新maven

• 重启并访问localhost:8080

打包为jar运行仍然出现404

• 打包插件版本设置为1.4.2.RELEASE，并且配置好资源目录

    
        
            src/main/webapp
            
            META-INF/resources
            
                **/**
            
            false
        
    
    
        
            org.springframework.boot
            spring-boot-maven-plugin
            1.4.2.RELEASE