springboot+jsp解决请求不到页面的历程

一、springboot+jsp项目（修改成功后的）
1、引入pom相关依赖：

  	org.springframework.boot
  	spring-boot-starter-parent
  	2.0.1.RELEASE
  
  
  	
  		org.springframework.boot
  		spring-boot-starter-web
  	
  	
  		org.springframework.boot
  		spring-boot-starter-test
  		test
  	
  	
		javax.servlet
		jstl
		provided
	
	
		javax.servlet
		jstl
	
	
		org.springframework.boot
		spring-boot-starter-tomcat
		provided
	
	
	
		org.apache.tomcat.embed
		tomcat-embed-jasper
		provided
	
  

2、编写配置yml

server:
 port: 9007
spring:
 template:
  provider:
   cache: false
 mvc:
  view:
   prefix: /WEB_INF/jsp/
   suffix: .jsp
 http:
  encoding:
   charset: UTF-8
   enabled: true
   force: true
logging:
 level:
  root: info
  

3、编写启动类

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;



/**
 * Hello world!
 *
 */
@SpringBootApplication
public class App 
{
	static Logger logger = LoggerFactory.getLogger(App.class);
   public static void main( String[] args )
    {
	    logger.info("项目启动");
    	SpringApplication.run(App.class);
    }
}

4、编写controllerq请求处理类

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * @author younger
 *
 */
@Controller
@RequestMapping("/request")
public class RequestController {
	Logger logger = LoggerFactory.getLogger(RequestController.class);
	
	@RequestMapping(value="/hello")
	public String index() {
		logger.info("进入hello");
		return "test";
	}
}

5、jsp页面创建
附下项目目录：

输入地址http://localhost:9007/request/hello
找错历程关键点：控制台打印出日志这已经很明显了，是jsp路径没找到，再看看，再target下边找了jsp页面的路径没有问题。仔细看才发现，实际jsp文件放在WEB_INF文件夹里，但是yml配置的路径是WEB-INF，这么粗心的细节，我也是坑了自己。。。