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项目

新建 Spring Starter Project，编辑 pom.xml 文件，引入依赖：

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">    <modelVersion>4.0.0</modelVersion>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>2.3.3.RELEASE</version>        <relativePath /> <!-- lookup parent from repository -->    </parent>        <groupId>com.mk</groupId>    <artifactId>spring-boot-axios-upload-file</artifactId>    <version>1.0.0</version>        <name>spring-boot-axios-upload-file</name>        <properties>        <java.version>1.8</java.version>    </properties>        <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-thymeleaf</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-devtools</artifactId>            <scope>runtime</scope>            <optional>true</optional>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-configuration-processor</artifactId>            <optional>true</optional>        </dependency>        <dependency>            <groupId>org.projectlombok</groupId>            <artifactId>lombok</artifactId>            <optional>true</optional>        </dependency>        <!-- Commons IO -->        <dependency>            <groupId>commons-io</groupId>            <artifactId>commons-io</artifactId>            <version>2.6</version>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>                <configuration>                    <excludes>                        <exclude>                            <groupId>org.springframework.boot</groupId>                            <artifactId>spring-boot-configuration-processor</artifactId>                        </exclude>                        <exclude>                            <groupId>org.projectlombok</groupId>                            <artifactId>lombok</artifactId>                        </exclude>                    </excludes>                </configuration>            </plugin>        </plugins>    </build></project>

编辑 application.yml 文件，设置上传文件的大小限制：

spring:  servlet:    multipart:      max-file-size: 200MB      max-request-size: 1000MB

IndexController 控制器：

package com.mk.controller;import java.io.File;import java.io.IOException;import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.multipart.MultipartFile;@Controllerpublic class IndexController {       @GetMapping({   "", "/index"})    public String index() {           return "index";    }        @PostMapping("/upload")    @ResponseBody    public String upload(HttpServletRequest request,            @RequestParam(value = "file", required = false) MultipartFile file,            String filename) throws IllegalStateException, IOException {                   String authorization = request.getHeader("Authorization");        System.out.println("Authorization: " + authorization);                String originalFilename = file.getOriginalFilename();        file.transferTo(new File("G:/20191212", originalFilename));                return filename;    }}

启动类：

package com.mk;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplicationpublic class Application {       public static void main(String[] args) {           SpringApplication.run(Application.class, args);    }}

src/main/resources/templates/index.html 文件：

<!DOCTYPE html><html>    <head>        <meta charset="utf-8">        <title>Upload File</title>    </head>    <body>        <input type="file" accept="*.*" />        <script type="text/javascript" src="/js/axios.min.js"></script>        <script type="text/javascript">            window.onload = (event) => {                    const input = document.querySelector('input[type=file]')                                input.onchange = (event) => {                        const files = event.target.files                                        if (files.length > 0) {                            const file = files[0]                        console.log(file)                                                const data = new FormData()                        data.append('filename', file.name)                        data.append('file', files[0])                                                const url = '/upload'                        const method = 'POST'                        const headers = {     'Authorization': '1234567890' }                        axios({                                url, method, headers, data                        }).then(response => {                                console.log(response)                        }).catch(error => console.error(error))                    }                }            }        </script>    </body></html>

参考

转载地址：http://ohyq.baihongyu.com/