springboot文件上传

依赖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">
    <parent>
        <artifactId>springboot</artifactId>
        <groupId>com.baizhi</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>springbootfile</artifactId>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.1.13.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <version>9.0.31</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.3</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <version>2.1.13.RELEASE</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <!--启动插件-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.1.3.RELEASE</version>
                <configuration>
                    <fork>true</fork>
                    <jvmArguments>-Dfile.encoding=utf-8</jvmArguments>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

前端页面file.jsp

<html>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<body>
<!--文件上传的form表单必须限制属性method="post" enctype="multipart/form-data"-->
<form action="/springbootfile/file/upload" method="post" enctype="multipart/form-data">
    file: <input type="file" name="pic" > <br>
    <input type="submit" value="提交">
</form>
</body>
</html>

application.yml（配置）

server:
  port: 8989
  servlet:
    context-path: /springbootfile

spring:
  mvc:
    view:
      prefix: /
      suffix: .jsp

  servlet:
    multipart:
      max-file-size: 20MB #单个文件上传最大20mb
      max-request-size: 50MB #一次请求最大传输50mb

FileController

package com.baihzhi.controller;


import org.springframework.stereotype.Controller;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * @Package: com.baihzhi.controller
 * @ClassName: FileController
 * @Author: alex
 * @CreateTime: 2020/11/9 11:18
 * @Description:
 */
@Controller
@RequestMapping("/file")

public class FileController {
    @RequestMapping("/upload")
    public String upload(MultipartFile pic, HttpServletRequest request) throws IOException {
        String realPath = request.getServletContext().getRealPath("/");
        System.out.println("realPath = " + realPath);
        File absoluteFile = new File("./").getAbsoluteFile();
        System.out.println("absoluteFile = " + absoluteFile.getAbsolutePath());
        //完成文件的复制(保存)
        FileCopyUtils.copy(pic.getInputStream(), new FileOutputStream("F:/88888888/" + pic.getOriginalFilename()));

        return "uploadsuccess";
    }
}

springbootfileApplication(启动入口类)

package com.baihzhi;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @Package: com.baihzhi
 * @ClassName: springbootfileApplication
 * @Author: alex
 * @CreateTime: 2020/11/9 14:07
 * @Description:
 */

@SpringBootApplication
public class springbootfileApplication {
    public static void main(String[] args) {
        SpringApplication.run(springbootfileApplication.class,args);
    }
}

posted on 2020-11-09 19:06 AlexLiuF 阅读(120) 评论(0) 编辑收藏举报