package com.dl.web.controller.common;
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import com.dl.common.config.DLConfig;
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import com.dl.common.constant.Constants;
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import com.dl.common.utils.FileUtils;
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import com.dl.common.utils.StringUtils;
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import com.dl.common.utils.file.FileUploadUtils;
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import com.dl.framework.config.ServerConfig;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.http.MediaType;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.util.ArrayList;
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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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* 通用请求处理
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*
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* @author dl
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*/
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@RestController
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@RequestMapping("/common")
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public class CommonController {
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private static final Logger log = LoggerFactory.getLogger(CommonController.class);
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@Autowired
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private ServerConfig serverConfig;
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private static final String FILE_DELIMETER = ",";
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@Value("${dl.profileView}")
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private String uploadPath;
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/**
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* 通用下载请求
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*
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* @param fileName 文件名称
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* @param delete 是否删除
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*/
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@GetMapping("/download")
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public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
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try {
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if (!FileUtils.checkAllowDownload(fileName)) {
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throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
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}
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String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
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String filePath = DLConfig.getUploadPath() + fileName;
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response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
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FileUtils.setAttachmentResponseHeader(response, realFileName);
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FileUtils.writeBytes(filePath, response.getOutputStream());
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if (delete) {
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FileUtils.deleteFile(filePath);
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}
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} catch (Exception e) {
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log.error("下载文件失败", e);
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}
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}
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/**
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* 通用上传请求（单个）
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*/
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@PostMapping("/upload")
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public Map<String, Object> uploadFile(MultipartFile file) throws IOException {
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// 上传文件路径
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String filePath = DLConfig.getUploadPath();
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// 上传并返回新文件名称
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String fileName = FileUploadUtils.upload(filePath, file);
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String url = serverConfig.getUrl() + fileName;
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Map<String, Object> ajax = new HashMap<>();
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ajax.put("url", fileName);
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ajax.put("viewUrl",uploadPath+ fileName);
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ajax.put("name",FileUtils.getName(fileName));//file.getOriginalFilename()
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ajax.put("newFileName", FileUtils.getName(fileName));
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ajax.put("originalFilename", file.getOriginalFilename());
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ajax.put("size", file.getSize());
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return ajax;
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}
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/**
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* 通用上传请求（多个）
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*/
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@PostMapping("/uploads")
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public Map<String, Object> uploadFiles(List<MultipartFile> files) throws IOException {
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// 上传文件路径
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String filePath = DLConfig.getUploadPath();
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List<String> urls = new ArrayList<String>();
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List<String> fileNames = new ArrayList<String>();
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List<String> newFileNames = new ArrayList<String>();
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List<String> originalFilenames = new ArrayList<String>();
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for (MultipartFile file : files) {
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// 上传并返回新文件名称
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String fileName = FileUploadUtils.upload(filePath, file);
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String url = serverConfig.getUrl() + fileName;
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urls.add(url);
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fileNames.add(fileName);
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newFileNames.add(FileUtils.getName(fileName));
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originalFilenames.add(file.getOriginalFilename());
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}
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Map<String, Object> ajax = new HashMap<>();
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ajax.put("urls", StringUtils.join(urls, FILE_DELIMETER));
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ajax.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
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ajax.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
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ajax.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));
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return ajax;
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}
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/**
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* 本地资源通用下载
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*/
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@GetMapping("/download/resource")
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public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
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throws Exception {
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try {
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if (!FileUtils.checkAllowDownload(resource)) {
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throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
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}
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// 本地资源路径
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String localPath = DLConfig.getProfile();
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// 数据库资源地址
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String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
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// 下载名称
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String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
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response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
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FileUtils.setAttachmentResponseHeader(response, downloadName);
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FileUtils.writeBytes(downloadPath, response.getOutputStream());
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} catch (Exception e) {
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log.error("下载文件失败", e);
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}
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}
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}
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