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I'm using spring boot application. I have set the MvcConfig class for it and added tomcat-embed-jasper and jstl dependencies to pom.xml. However, I can not view my jsp file in the 'WEB-INF' folder, I will get 404 error (Whitelabel Error Page).I have set the Application.properties. here is my application.properties:
#
## View resolver
#
spring.view.prefix: /WEB-INF/jsp/
spring.view.suffix: .jsp
Here is my MvcConfig class:
package com.goodvideotutorials.spring.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
@Configuration
public class MvcConfig extends WebMvcConfigurerAdapter {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("home");
}
}
Here is my home.jsp:
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Up and running with Spring Framework quickly</title>
</head>
<body>
<h2>Hello, world!</h2>
</body>
</html>
it is inserted inside src > main > webapp > WEB-INF > jsp > home.jsp
I have added these dependencies to pom.xml:
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
this is my Application.java class:
@Configuration
@ComponentScan
@EnableAutoConfiguration
public class Application extends SpringBootServletInitializer {
public static void main(String[] args) {
ApplicationContext ctx = SpringApplication.run(Application.class, args);
}
}
and my controller class:
@Controller
public class RootController {
// @RequestMapping("/")
// public String home() {
//
// return "home";
//
// }
}
Any way if I make the code commented in the controller and don't use MvcConfig, it doesn't work. If I comment that code and use MvcConfig class, it doesn't work as well. This is the url : localhost:8080
I just tested many things , but it shows "Whitelabel Error Page" instead of JSP. I also have Tomcat server installed in the JEE environment. Could that cause problem?
373
just my 2 cents.
For me i received the following warning in server logs :
WARN : ResourceHttpRequestHandler : Path with "WEB-INF" or "META-INF": [WEB-INF/jsp/welcome.jsp]
and the white label error page was displayed, to fix it i modifed my JSP location
from
src/main/webapp/WEB-INF/jsp/welcome.jsp
to
src/main/webapp/templates/jsp/welcome.jsp
Why it worked for me ?
Spring documentation clearly states that ResourceHttpRequestHandler will reject any URL that contains either WEB-INF or META-INF.
ResourceHttpRequestHandler doc link
From DOCS: Identifies invalid resource paths. By default rejects: Paths that contain "WEB-INF" or "META-INF"
Hence as soon as i replaced the WEB-INF folder name with templates, it started working.
Note : I also had my internal view resolver configured with required prefix and suffix. I am using spring-boot-starter-parent - 2.1.2.RELEASE
51
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