package com.java110.api.controller.app.file;
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import com.java110.api.controller.app.payment.NotifyPaymentController;
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import com.java110.core.client.FileUploadTemplate;
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import com.java110.core.log.LoggerFactory;
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import com.java110.dto.userDownloadFile.UserDownloadFileDto;
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import com.java110.intf.job.IUserDownloadFileV1InnerServiceSMO;
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import com.java110.utils.util.Assert;
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import org.slf4j.Logger;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RestController;
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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.BufferedInputStream;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.util.List;
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/**
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* 用户 下载中心中下载
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*/
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@RestController
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@RequestMapping(value = "/app/file/userfile")
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public class UserDownloadFileController {
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private final static Logger logger = LoggerFactory.getLogger(UserDownloadFileController.class);
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@Autowired
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private IUserDownloadFileV1InnerServiceSMO userDownloadFileV1InnerServiceSMOImpl;
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@Autowired
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private FileUploadTemplate fileUploadTemplate;
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@RequestMapping(path = "/download/{downloadId}", method = RequestMethod.GET)
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public void download(@PathVariable String downloadId, HttpServletRequest request, HttpServletResponse response) {
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logger.debug("用户开始下载文件" + downloadId);
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String userId = request.getHeader("user-id");
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UserDownloadFileDto userDownloadFileDto = new UserDownloadFileDto();
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userDownloadFileDto.setDownloadId(downloadId);
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userDownloadFileDto.setDownloadUserId(userId);
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List<UserDownloadFileDto> userDownloadFileDtos = userDownloadFileV1InnerServiceSMOImpl.queryUserDownloadFiles(userDownloadFileDto);
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Assert.listOnlyOne(userDownloadFileDtos, "文件不存在");
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response.setHeader("content-type", "application/octet-stream");
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response.setContentType("application/octet-stream");
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InputStream is = null;
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BufferedInputStream bis = null;
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byte[] buffer = new byte[1024];
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try {
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is = fileUploadTemplate.downloadFile(userDownloadFileDtos.get(0).getTempUrl());
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bis = new BufferedInputStream(is);
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OutputStream os = response.getOutputStream();
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int i = bis.read(buffer);
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while (i != -1) {
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os.write(buffer, 0, i);
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i = bis.read(buffer);
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (is != null) {
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try {
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is.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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if (bis != null) {
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try {
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bis.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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}
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}
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