Spring Boot项目运行问题

Question

I created spring boot starter project using "spring tool suite". when i am running project, index.jsp page not loading. but index.html can load nicely.

my folder structure as below

my home controller is

package com.programmingfree.springservice;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HomeController {

    @RequestMapping("/")
    public String home() {
        return "index";
    }

}

how i run index.jsp

Answer 1

You are using the default configuration for spring boot, take a look at ThymeleafProperties.java , .html is the default setting for suffix:

@ConfigurationProperties(
    prefix = "spring.thymeleaf"
)
public class ThymeleafProperties {
    private static final Charset DEFAULT_ENCODING = Charset.forName("UTF-8");
    private static final MimeType DEFAULT_CONTENT_TYPE = MimeType.valueOf("text/html");
    public static final String DEFAULT_PREFIX = "classpath:/templates/";
    public static final String DEFAULT_SUFFIX = ".html";
    private boolean checkTemplate = true;
    private boolean checkTemplateLocation = true;
    private String prefix = "classpath:/templates/";
    private String suffix = ".html";
    private String mode = "HTML5";
    //......
}

So you have to customize your config in application.properties:

spring.thymeleaf.prefix=classpath:/templates/  
spring.thymeleaf.suffix=.jsp

Answer 2

Do you have next lines in application.properties?

spring.mvc.view.prefix: /WEB-INF/jsp/
spring.mvc.view.suffix: .jsp

Links to resources are rewritten at runtime in template, thanks to a ResourceUrlEncodingFilter, auto-configured for Thymeleaf and FreeMarker. You should manually declare this filter when using JSPs. spring doc