java - spring boot 返回字符串而不是 .html 文件

Question

我尝试运行 spring boot 应用程序，它将返回静态文件夹中的 HTML 静态文件，问题是:每次我加载页面:127.0.0.1 我得到字符串“bakara”而不是 HTML 文件 bakara.html。当我加载 127.0.0.1/bakara.html 时，我得到了 bakara.html 文件

pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>il.mda.ks</groupId>
<artifactId>mdaForm</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>mdaForm</name>
<description>Demo project for Spring Boot</description>


<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.1.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>


<dependencies>
    <!-- This is a web application -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <!-- Tomcat embedded container -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>

    <!-- JSTL for JSP -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>

    <!-- Need this to compile JSP -->
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency>

    <!-- Need this to compile JSP, tomcat-embed-jasper version is not working, 
        no idea why -->
    <dependency>
        <groupId>org.eclipse.jdt.core.compiler</groupId>
        <artifactId>ecj</artifactId>
        <version>4.6.1</version>
        <scope>provided</scope>
    </dependency>

    <!-- Optional, test for static content, bootstrap CSS -->
    <dependency>
        <groupId>org.webjars</groupId>
        <artifactId>bootstrap</artifactId>
        <version>3.3.7</version>
    </dependency>

</dependencies>

应用程序属性:

#spring.mvc.view.prefix=/static/
#spring.mvc.view.suffix=.html

spring.mvc.view.prefix=/static
spring.mvc.view.suffix=.html

家庭 Controller .java:

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

@Controller
public class HomeController {

    @RequestMapping("/")
    @ResponseBody
    public String welcome() {
        return "bakara";
    }
}

项目结构:

|── src
│   ├── main
│   │   ├── java
│   │   │   └── il
│   │   │       └── mda
│   │   │           └── ks
│   │   │               └── mdaForm
│   │   │                   ├── BakaraController.java
│   │   │                   ├── HomeController.java
│   │   │                   └── MdaFormApplication.java
│   │   └── resources
│   │       ├── application.properties
│   │       ├── static
│   │       │   ├── assets
│   │       │   ├── bakara.html
│   │       │   ├── succeed.html
│   │       │   └── TokenDenied.html
│   │       └── templates

Answer 1

@Controller VS @RestController

• @Controller 用于将类标记为 Spring MVC Controller。
• @RestController 是一个方便的注解，它只是添加了 @Controller 和 @ResponseBody 注解。

因此，在您的情况下，只需从 HomeController.java 中的 welcome() 方法中删除 @ResponseBody 注释就足以获得所需的输出。

另请参阅本 Spring 指南，其中显示了如何 Serve Web Content with Spring MVC