SysFileController.java
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package com.huaheng.file.controller;
import com.huaheng.common.core.domain.R;
import com.huaheng.common.core.utils.file.FileUtils;
import com.huaheng.file.service.ISysFileService;
import com.huaheng.system.api.domain.SysFile;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
/**
* 文件请求处理
*/
@RestController
public class SysFileController {
private static final Logger log = LoggerFactory.getLogger(SysFileController.class);
/**
* 上传文件存储在本地的根路径
*/
@Value("${file.path}")
private String localFilePath;
@Resource
private ISysFileService sysFileService;
/**
* 文件上传请求
*/
@PostMapping("upload")
public R<SysFile> upload(MultipartFile file) {
try {
// 上传并返回访问地址
String url = sysFileService.uploadFile(file, localFilePath);
SysFile sysFile = new SysFile();
sysFile.setName(FileUtils.getName(url));
sysFile.setUrl(url);
return R.ok(sysFile);
} catch (Exception e) {
log.error("上传文件失败", e);
return R.fail(e.getMessage());
}
}
@PostMapping("download")
public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) {
try {
String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
String filePath = localFilePath + fileName;
response.setCharacterEncoding("utf-8");
response.setContentType("multipart/form-data");
response.setHeader("Content-Disposition", "attachment;fileName=" + setFileDownloadHeader(request, realFileName));
FileUtils.writeBytes(filePath, response.getOutputStream());
if (delete) {
FileUtils.deleteFile(filePath);
}
} catch (Exception e) {
log.error("下载文件失败", e);
}
}
public String setFileDownloadHeader(HttpServletRequest request, String fileName) throws UnsupportedEncodingException {
final String agent = request.getHeader("USER-AGENT");
String filename = fileName;
if (agent.contains("MSIE")) {
// IE浏览器
filename = URLEncoder.encode(filename, "utf-8");
filename = filename.replace("+", " ");
} else if (agent.contains("Firefox")) {
// 火狐浏览器
filename = new String(fileName.getBytes(), "ISO8859-1");
} else if (agent.contains("Chrome")) {
// google浏览器
filename = URLEncoder.encode(filename, "utf-8");
} else {
// 其它浏览器
filename = URLEncoder.encode(filename, "utf-8");
}
return filename;
}
}