Springboot 关于jsp报 Path with WEB-INF or META-INF: [WEB-INF/jsp/index.jsp] 错误总结

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直接切入正题，首先是否可以访问controller 方法（如图）

启动类代码片.

// An highlighted block
package com.example.demo;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;import java.util.Map;@Controller
@SpringBootApplication
public class DemoApplication {@RequestMapping("/name")public String name(Map<String, Object> map) {map.put("name", "Clark");System.out.println("============================================这是一个测试");return "index";}@RequestMapping("/index")@ResponseBodypublic String index(Map<String, Object> map) {map.put("name", "Clark");return "index";}public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);}}

报错.

============================================这是一个测试
2019-04-13 10:19:25.054  WARN 12100 --- [nio-8080-exec-5] o.s.w.s.r.ResourceHttpRequestHandler     : Path with "WEB-INF" or "META-INF": [WEB-INF/jsp/index.jsp]

浏览器报错：

Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.Sat Apr 13 10:19:25 CST 2019
There was an unexpected error (type=Not Found, status=404).
No message available

说明controller 可以正常运行 jsp解析出现问题。
这里我pom.xml 导包需要导入依赖

    <!-- tomcat 依赖包 --><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><!-- servlet 依赖包 --><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><!--<scope>provided</scope>--></dependency><!-- JSTL (JSP standard Tag Library) JSP 标准标签库 --><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId></dependency>

到这里一般jsp就可以运行了，但是要确定这个依赖被maven 载入（按住ctrl+鼠标右键看是否可以进入），反正我被这个问题坑了好久。。。最好maven 重新导入一下（org.apache.tomcat.embed）比较重要，没有导入就是404…剩下的就是解析问题了

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