首页 \ 问答 \ Spring启动，View的可能原因无法解决问题(Spring boot, possible causes of View cannot be resolved issue)

Spring启动，View的可能原因无法解决问题(Spring boot, possible causes of View cannot be resolved issue)

 如果Spring Boot无法解析具有特定名称的视图，可能会出现什么问题？ 
 

 我以前开发过很多Spring Boot应用程序，但从未遇到过这个问题。 
 

 我有以下文件夹结构： 
 

/src/main/java
/src/main/resources/config
/src/main/resources/static
/src/main/resources/static/partials
/src/main/resources/static/resources

 

 图片： 
 

 在此处输入图像描述 
 

 /src/main/resources/static/resources文件夹没有resources名称的问题。 我尝试重命名它并没有解决问题。 
 

 我正在使用Maven，我有一个有多个子项目的父项目。 
 

 其余api的模块包含许多配置类，包括安全性配置。 
 

 一切正常，应用程序可以正常启动，但是当我尝试添加静态内容时遇到了这个问题。 
 

 从下面的示例（ 示例 ）中我们可以看到Spring Boot应该自动将src/main/resources/static/index.html映射到根路径，但这不会发生在我的应用程序中。 从日志中我可以看到Spring没有找到/映射。 
 

 我能够正常运行该示例，但在我的应用程序中它不起作用。 因为Spring没有自动映射我创建了应该返回视图的WelcomeController ： 
 

@Controller
public class WelcomeRestController {

    @RequestMapping("/")
    public String welcome() {
        return "index.html";
    }
} 

 

 在我这样做之后，找到了映射，但Spring报告它无法解析名为index.html视图，即使它存在。 
 

 我尝试将静态内容添加到src/main/webapp/static文件夹，即使它不推荐也没有用，同样的问题，无法解析视图。 
 

 我也尝试配置使用 
 

@Configuration
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {

     @Override public void addViewControllers(ViewControllerRegistry registry) { 
         registry.addViewController("/").setViewName("index.html");
     }

 }

 

 同样，视图无法解决。 
 

 我的应用程序的起点： 
 

@Import(MyRestServiceConfiguration.class)
@SpringBootApplication
public class Application extends SpringBootServletInitializer {

    public static void main(final String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {

        return builder.sources(Application.class);
    }
}

 

 我正在使用嵌入式Tomcat。 
 

 是否可能安全配置或除WebMvcConfigurerAdapter之外的某些其他配置对视图有影响？ 
 

 我试图解决这个问题几个小时，但我找不到解决方案。 任何帮助，将不胜感激。 
 

 编辑： 
 

 我不是使用Maven构建应用程序，只是将Application.java作为Java应用程序运行，因此Maven应该不是问题。 
 

 编辑：index.html的内容： 
 

<!DOCTYPE html>
<html >
    <head lang="en">

    </head>
    <body>

        <div>Hello</div>
    </body>
</html>


What could be the problem if Spring Boot cannot resolve view with specific name?
 

I have developed many Spring Boot applications before and have never encountered this problem.
 

I have following folder structure:
 

/src/main/java
/src/main/resources/config
/src/main/resources/static
/src/main/resources/static/partials
/src/main/resources/static/resources

 

Image:
 

enter image description here
 

/src/main/resources/static/resources folder is not making problems for having resources name. I tried renaming it and it didn't solve problem.
 

I am using Maven and I have parent project which has multiple children projects.
 

Module for the rest api contains many configuration classes, including configurations for security.
 

Everything is working as it should, application can be started without errors, but when I tried to add static content I encountered this problem.
 

From the following example (example) we can see that Spring Boot should automatically maps src/main/resources/static/index.html to the root path, but that is not happening in my application. From the log I can see that Spring didn't find mapping for /.
 

I am able to run that example normally, but in my application it is not working. Because Spring didn't map automatically I created WelcomeController which should return view:
 

@Controller
public class WelcomeRestController {

    @RequestMapping("/")
    public String welcome() {
        return "index.html";
    }
} 

 

After I did that, mapping is found, but Spring reports that it couldn't resolve view with name index.html even if it exists.
 

I tried adding static content to src/main/webapp/static folder even if it is not recommended and it also didn't work, same problem, cannot resolve view. 
 

I also tried to configure using 
 

@Configuration
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {

     @Override public void addViewControllers(ViewControllerRegistry registry) { 
         registry.addViewController("/").setViewName("index.html");
     }

 }

 

Again, view cannot be resolved.
 

My application's start point:
 

@Import(MyRestServiceConfiguration.class)
@SpringBootApplication
public class Application extends SpringBootServletInitializer {

    public static void main(final String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {

        return builder.sources(Application.class);
    }
}

 

I am using embedded Tomcat.
 

Is it possible that security configurations or some other configurations except WebMvcConfigurerAdapter are having influence on views?
 

I am trying to resolve this issue for hours but I can't find soulution. Any help would be appreciated.
 

EDIT: 
 

I am not building application using Maven, just running Application.java as Java Application, so Maven should not be a problem.
 

EDIT: Content of index.html:
 

<!DOCTYPE html>
<html >
    <head lang="en">

    </head>
    <body>

        <div>Hello</div>
    </body>
</html>


原文：https://stackoverflow.com/questions/38120062
更新时间：2023-09-28 20:09

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