103 lines
3.3 KiB
Java
103 lines
3.3 KiB
Java
package com.example.controller;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.io.FileUtil;
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import cn.hutool.core.io.resource.ResourceUtil;
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import cn.hutool.core.lang.Dict;
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import cn.hutool.core.util.StrUtil;
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import com.example.common.Result;
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import org.springframework.util.ResourceUtils;
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import org.springframework.web.bind.annotation.*;
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import org.springframework.web.multipart.MultipartFile;
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import jakarta.servlet.http.HttpServletResponse;
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import java.io.FileNotFoundException;
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import java.io.OutputStream;
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import java.net.URLEncoder;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 文件上传接口
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*/
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@RestController
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@RequestMapping("/files")
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public class FileController {
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// 文件上传存储路径
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private static final String filePath = System.getProperty("user.dir") + "/file/";
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private static final String http = "http://localhost:9090/files/";
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/**
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* 文件上传
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*/
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@PostMapping("/upload")
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public Result upload(MultipartFile file) {
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synchronized (FileController.class) {
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String flag = System.currentTimeMillis() + "";
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String fileName = file.getOriginalFilename();
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try {
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if (!FileUtil.isDirectory(filePath)) {
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FileUtil.mkdir(filePath);
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}
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// 文件存储形式：时间戳-文件名
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FileUtil.writeBytes(file.getBytes(), filePath + flag + "-" + fileName);
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System.out.println(fileName + "--上传成功");
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Thread.sleep(1L);
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} catch (Exception e) {
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System.err.println(fileName + "--文件上传失败");
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}
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return Result.success(http + flag + "-" + fileName);
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}
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}
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/**
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* 获取文件
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*
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* @param flag
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* @param response
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*/
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@GetMapping("/{flag}")
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public void avatarPath(@PathVariable String flag, HttpServletResponse response) {
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if (!FileUtil.isDirectory(filePath)) {
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FileUtil.mkdir(filePath);
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}
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OutputStream os;
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List<String> fileNames = FileUtil.listFileNames(filePath);
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String avatar = fileNames.stream().filter(name -> name.contains(flag)).findAny().orElse("");
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try {
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if (StrUtil.isNotEmpty(avatar)) {
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response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(avatar, "UTF-8"));
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response.setContentType("application/octet-stream");
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byte[] bytes = FileUtil.readBytes(filePath + avatar);
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os = response.getOutputStream();
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os.write(bytes);
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os.flush();
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os.close();
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}
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} catch (Exception e) {
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System.out.println("文件下载失败");
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}
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}
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/**
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* 删除文件
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*
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* @param flag
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*/
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@DeleteMapping("/{flag}")
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public void delFile(@PathVariable String flag) {
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if (!FileUtil.isDirectory(filePath)) {
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FileUtil.mkdir(filePath);
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}
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List<String> fileNames = FileUtil.listFileNames(filePath);
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String filename = fileNames.stream().filter(name -> name.contains(flag)).findAny().orElse("");
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FileUtil.del(filePath + filename);
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System.out.println("删除文件" + filename + "成功");
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}
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}
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