网站用途,怎么建立以太网,建设网站资质查询,在线做章网站直接上代码 controller层 GetMapping(/downloadAndUploadAttachment)UpdateOperationLogging(msg 根据路径下载文件转换为MultipartFile,并且上传到服务器)Operation(summary 根据路径下载文件转换为MultipartFile,并且上传到服务器, de…直接上代码 controller层 GetMapping(/downloadAndUploadAttachment)UpdateOperationLogging(msg 根据路径下载文件转换为MultipartFile,并且上传到服务器)Operation(summary 根据路径下载文件转换为MultipartFile,并且上传到服务器, description 根据路径下载文件转换为MultipartFile,并且上传到服务器)public RInteger downloadAndUploadAttachment() throws IOException {//第一个参数是一个类似于文件的存储路径,在浏览器输入可以直接下载,第二个参数是文件名称
// String url externalFileService.downloadAndUploadAttachment(https://attachmentgw.trinasolar.com/fs/ts/q8sc1zw9veq5fays2bo2sd8e/20241015/3A75DBB77A6649ACB1657710D822ED21.xlsx, 新建 Microsoft Excel 工作表.xlsx);String url externalFileService.downloadAndUploadAttachment(https://attachmentgw.trinasolar.com/fs/ts/q8sc1zw9veq5fays2bo2sd8e/20241015/9AEE920F274947E392554EFB49BFC31E.jpeg, 2024-09-24_084333.jpeg);//打印返回的路径在浏览器也是可以直接下载(这样主要是解决一个跨域问题)System.out.println(url);return null;}service层
package com.trinasolar.admin.service.impl;import com.hccake.ballcat.common.model.result.R;
import com.trinasolar.admin.controller.UploadController;
import com.trinasolar.devops.file.core.exception.UploadFailedException;
import com.trinasolar.devops.file.core.exception.UserTokenFetchIllegalExeption;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContextBuilder;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.util.Map;
Service
Slf4j
public class ExternalFileService {AutowiredUploadController uploadController;/*** 从外部URL下载文件并将其上传到服务器。** param externalFileUrl 外部文件的URL* param fileName 文件名* throws IOException 如果下载或读取文件时发生IO异常*/public String downloadAndUploadAttachment(String externalFileUrl, String fileName) throws IOException {try (CloseableHttpClient httpClient createIgnoreSSLClient()) { // 创建一个忽略SSL验证的HTTP客户端HttpGet httpGet new HttpGet(externalFileUrl); // 创建GET请求try (CloseableHttpResponse response httpClient.execute(httpGet)) { // 执行GET请求if (response.getStatusLine().getStatusCode() 200) { // 检查响应状态码是否为200InputStream inputStream response.getEntity().getContent(); // 获取响应内容的输入流Path tempFile Files.createTempFile(attachment, ); // 创建临时文件Files.copy(inputStream, tempFile, StandardCopyOption.REPLACE_EXISTING); // 将输入流写入临时文件// 创建MultipartFile对象MultipartFile multipartFile createMultipartFile(tempFile, fileName);// 上传文件RMap uploadResult uploadController.upload(multipartFile);return (String) uploadResult.getData().get(url);} else {throw new RuntimeException(Failed to download file: response.getStatusLine());}}} catch (KeyStoreException | NoSuchAlgorithmException | KeyManagementException e) {log.error(Failed to create HTTP client with ignored SSL, e);throw new RuntimeException(Failed to create HTTP client with ignored SSL, e);} catch (UploadFailedException | UserTokenFetchIllegalExeption e) {log.error(Failed to upload file, e);throw new RuntimeException(Failed to upload file, e);} catch (IOException e) {log.error(IO error occurred, e);throw new RuntimeException(IO error occurred, e);}}/*** 创建忽略SSL验证的HTTP客户端** return 忽略SSL验证的HTTP客户端* throws KeyStoreException 如果密钥库操作失败* throws NoSuchAlgorithmException 如果找不到算法* throws KeyManagementException 如果密钥管理操作失败*/private CloseableHttpClient createIgnoreSSLClient() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {SSLContext sslContext SSLContextBuilder.create().loadTrustMaterial(null, (chain, authType) - true) // 信任所有证书.build();SSLConnectionSocketFactory sslSocketFactory new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);return HttpClients.custom().setSSLSocketFactory(sslSocketFactory).build();}/*** 创建MultipartFile对象** param tempFile 临时文件路径* param fileName 文件名* return MultipartFile对象* throws IOException 如果读取文件时发生IO异常*/private MultipartFile createMultipartFile(Path tempFile, String fileName) throws IOException {FileItemFactory factory new DiskFileItemFactory();FileItem fileItem factory.createItem(file, application/octet-stream, true, fileName);fileItem.getOutputStream().write(Files.readAllBytes(tempFile));fileItem.getOutputStream().close();return new org.springframework.web.multipart.commons.CommonsMultipartFile(fileItem);}
}
上传文件的方法,这里上传大家作为一个参考即可, 是引用了公司的一个依赖 上传是使用公司的依赖
dependencygroupIdcom.trinasolar.devops.file/groupIdartifactIdfile-spring-boot-starter/artifactIdversion1.0.0.1-SNAPSHOT/version
/dependencyRestController
RequestMapping(/upload)
Tag(name 文件服务上传)
public class UploadController {private final Uploader uploader;public UploadController(Uploader uploader) {this.uploader uploader;}PostMapping(/uploadFile)public RMap upload(MultipartFile file) throws UserTokenFetchIllegalExeption, IOException, UploadFailedException {String fileUrl this.uploader.Upload(file);String replace fileUrl.replace(http, https);MapString, String map new HashMap();map.put(name, file.getOriginalFilename());map.put(url, replace);return R.ok(map);}}该过程使用的全部依赖 dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependencydependencygroupIdorg.apache.httpcomponents/groupIdartifactIdhttpclient/artifactIdversion4.5.13/version !-- 或最新版本 --/dependencydependencygroupIdcommons-fileupload/groupIdartifactIdcommons-fileupload/artifactIdversion1.4/version !-- 或最新版本 --/dependencydependencygroupIdcommons-io/groupIdartifactIdcommons-io/artifactIdversion2.11.0/version !-- 或最新版本 --/dependency
