Springboot實(shí)現(xiàn)單個(gè)或批量文件上傳功能
一：添加依賴：
為來賓等地區(qū)用戶提供了全套網(wǎng)頁設(shè)計(jì)制作服務(wù)，及來賓網(wǎng)站建設(shè)行業(yè)解決方案。主營業(yè)務(wù)為成都網(wǎng)站建設(shè)、網(wǎng)站設(shè)計(jì)、來賓網(wǎng)站設(shè)計(jì)，以傳統(tǒng)方式定制建設(shè)網(wǎng)站，并提供域名空間備案等一條龍服務(wù)，秉承以專業(yè)、用心的態(tài)度為用戶提供真誠的服務(wù)。我們深信只要達(dá)到每一位用戶的要求，就會(huì)得到認(rèn)可，從而選擇與我們長期合作。這樣，我們也可以走得更遠(yuǎn)！
org.springframework.boot spring-boot-starter-thymeleaf javax.servlet jstl org.apache.tomcat.embed tomcat-embed-jasper
二：application.xml配置文件路徑：
#配置上傳文件地址 image.location.path=f:/image/ #配置文件大小限制 spring.http.multipart.maxFileSize=100Mb spring.http.multipart.maxRequestSize=100Mb #靜態(tài)頁面的訪問配置 spring.thymeleaf.cache=false spring.thymeleaf.prefix=classpath:/templates/ spring.thymeleaf.check-template-location=true spring.thymeleaf.suffix=.html spring.thymeleaf.encoding=UTF-8 spring.thymeleaf.content-type=text/html spring.thymeleaf.mode=HTML5
三：編寫靜態(tài)頁面（src/main/resources下建文件夾static（static存放靜態(tài)文件，比如 css、js、image…）和templates（存放靜態(tài)頁面）兩個(gè)是同級(jí)目錄），先在templates 中新建一個(gè) uploadimg.html。
uploadimg.html
四：編寫Controller層：
package com.hot.analysis.controller.file;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import java.util.Random;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;
import com.hot.analysis.exception.MyException;
@RestController
public class FileUploadController {
//獲取配置文件的路徑
@Value("${image.location.path}")
private String resourceDir;
/**
* 實(shí)現(xiàn)文件上傳
* */
@RequestMapping(value = "/index")
public ModelAndView toIndex() {
ModelAndView mv = new ModelAndView("uploadimg");
return mv;
}
//單個(gè)文件上傳
@RequestMapping("/dc/fileUpload")
@ResponseBody
public String fileUpload( MultipartFile file){
// 獲取上傳文件路徑
String uploadPath = file.getOriginalFilename();
// 獲取上傳文件的后綴
String fileSuffix = uploadPath.substring(uploadPath.lastIndexOf(".") + 1, uploadPath.length());
if (fileSuffix.equals("apk")) {
uploadPath = resourceDir;
} else {
// 上傳目錄地址
// String uploadpath="E:/hot-manage/image/";//windows路徑
uploadPath =resourceDir;// liux路勁
}
// 上傳文件名
String fileName = new Date().getTime() + new Random().nextInt(100) + "." + fileSuffix;
File savefile = new File(uploadPath + fileName);
if (!savefile.getParentFile().exists()) {
savefile.getParentFile().mkdirs();
}
try {
file.transferTo(savefile);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
if (fileSuffix.equals("apk")) {
return "/apk/" + fileName;
} else {
return "/image/" + fileName;
}
}
// 批量上傳
@PostMapping("/dc/moreFileUpload")
public String bacthFileUpload(MultipartFile[] file) throws MyException {
StringBuffer buffer = new StringBuffer();
for (MultipartFile multipartFile : file) {
String str = fileUpload(multipartFile);
buffer.append(str);
buffer.append(",");
}
String all = buffer.substring(0, buffer.length() - 1);
return all;
}
// 刪除文件
@PostMapping("/dc/deleteFile")
public String delFile(String path) {
String resultInfo = null;
int lastIndexOf = path.lastIndexOf("/");
String sb = path.substring(lastIndexOf + 1, path.length());
sb = "f:/image/" + sb;
File file = new File(sb);
if (file.exists()) {
if (file.delete()) {
resultInfo = "1-刪除成功";
} else {
resultInfo = "0-刪除失敗";
}
} else {
resultInfo = "文件不存在！";
}
return resultInfo;
}
//文件下載相關(guān)代碼
@RequestMapping("/download")
public String downloadFile(HttpServletRequest request, HttpServletResponse response) {
String fileName = "aim_test.txt";// 設(shè)置文件名，根據(jù)業(yè)務(wù)需要替換成要下載的文件名
if (fileName != null) {
//設(shè)置文件路徑
String realPath = "D://aim//";
File file = new File(realPath , fileName);
if (file.exists()) {
response.setContentType("application/force-download");// 設(shè)置強(qiáng)制下載不打開
response.addHeader("Content-Disposition", "attachment;fileName=" + fileName);// 設(shè)置文件名
byte[] buffer = new byte[1024];
FileInputStream fis = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(file);
bis = new BufferedInputStream(fis);
OutputStream os = response.getOutputStream();
int i = bis.read(buffer);
while (i != -1) {
os.write(buffer, 0, i);
i = bis.read(buffer);
}
System.out.println("success");
} catch (Exception e) {
e.printStackTrace();
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
return null;
}
}測(cè)試：
成功返回路徑：
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總結(jié)
以上所述是小編給大家介紹的Spring boot 實(shí)現(xiàn)單個(gè)或批量文件上傳功能，希望對(duì)大家有所幫助，如果大家有任何疑問請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)創(chuàng)新互聯(lián)網(wǎng)站的支持！
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