package com.ruoyi.service.impl;
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import com.ruoyi.common.core.domain.AjaxResult;
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import com.ruoyi.service.DownLoadFileService;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Service;
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import javax.servlet.http.HttpServletResponse;
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import java.io.*;
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/**
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* @Version 1.0
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* @Author Jin_quan Ou
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* @Date 2023-03-19 17:33
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*/
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@Service
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public class DownLoadFileServiceImpl implements DownLoadFileService {
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@Value("${ruoyi.profile}")
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private String basePath;
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@Override
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public void downLoadFile(String path, HttpServletResponse response) {
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path=basePath+path.substring(8);
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File file = new File(path);
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byte[] buffer = new byte[1024];
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BufferedInputStream bis = null;
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OutputStream os = null;
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try {
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//文件是否存在
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if (file.exists()) {
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//设置响应
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response.setContentType("application/octet-stream;charset=UTF-8");
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response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
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response.setHeader("Content-Disposition","attachment;filename=");
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response.setCharacterEncoding("UTF-8");
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os = response.getOutputStream();
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bis = new BufferedInputStream(new FileInputStream(file));
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while(bis.read(buffer) != -1){
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os.write(buffer);
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}
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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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try {
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if(bis != null) {
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bis.close();
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}
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if(os != null) {
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os.flush();
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os.close();
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}
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} catch (IOException 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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