Shulou(Shulou.com)06/01 Report--

This article mainly introduces the relevant knowledge of "SpringBoot+BootStrap multi-file upload method to the local", the editor shows you the operation process through the actual case, the operation method is simple and fast, practical, I hope that this "SpringBoot+BootStrap multi-file upload method to the local" article can help you solve the problem.

1. Application.yml file configuration # File size MB must be uppercase # maxFileSize is a single file size # maxRequestSize is to set the total uploaded data size spring: servlet: multipart: enabled: true max-file-size: 20MB max-request-size, application-resources.yml configuration (custom attributes) # File upload path file: filepath: O:/QMDownload/Hotfix2/3, backend code (1) FileService.javapackage com.sun123.springboot.service Import org.springframework.web.multipart.MultipartFile;import java.util.Map;public interface FileService {Map fileUpload (MultipartFile [] file);} (2) FileServiceImpl.javapackage com.sun123.springboot.service.impl;import com.sun123.springboot.FileUtil;import com.sun123.springboot.service.FileService;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.stereotype.Service;import org.springframework.web.multipart.MultipartFile Import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.File;import java.io.FileInputStream;import java.io.PrintWriter;import java.util.*;/** * @ ClassName FileServiceImpl * @ Description TODO * @ Date 22:19 on 2019-3-22 * @ Version 1.0 * / @ Servicepublic class FileServiceImpl implements FileService {private static Logger log= LoggerFactory.getLogger (FileServiceImpl.class) / / the file upload path @ Service contains @ Component @ Value ("${file.filepath}") private String filepath; Map resultMap = new LinkedHashMap (); / / the upload information will be stored here, and List fileName = new ArrayList () will be adjusted according to the requirements; / / must be injected, objects cannot be created, otherwise the path attribute referenced by the configuration file will be null @ Autowired FileUtil fileUtil @ Override public Map fileUpload (MultipartFile [] file) {HttpServletRequest request = null; HttpServletResponse response; resultMap.put ("status", 400); if (fileholders containing nulllength length > 0) {/ / combined image name, "; separated" / / List fileName = new ArrayList (); PrintWriter out = null / / upload try {for (int I = 0; I)

< file.length; i++) { if (!file[i].isEmpty()) { //上传文件，随机名称，","分号隔开 fileName.add(fileUtil.uploadImage(request, filepath+"upload/"+ fileUtil.formateString(new Date())+"/", file[i], true)+fileUtil.getOrigName()); } } //上传成功 if(fileName!=null&&fileName.size()>

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