下载图片方法修改，未测

esua-epdc/epdc-module/epdc-oss/epdc-oss-server/src/main/java/com/elink/esua/epdc/controller/OssController.java

@@ -129,6 +129,8 @@ public class OssController {
         if (build instanceof AliyunCloudStorageService) {
             AliyunCloudStorageService aliyunCloudStorageService = (AliyunCloudStorageService) build;
             aliyunCloudStorageService.download(fileUrl, response);
+        } else {
+            ossService.download(fileUrl, response);
         }
     }
 

esua-epdc/epdc-module/epdc-oss/epdc-oss-server/src/main/java/com/elink/esua/epdc/service/OssService.java

@@ -16,6 +16,7 @@ import com.elink.esua.epdc.commons.tools.utils.Result;
 import com.elink.esua.epdc.dto.UploadDTO;
 import com.elink.esua.epdc.entity.OssEntity;
 
+import javax.servlet.http.HttpServletResponse;
 import java.util.Map;
 
 /**
@@ -37,4 +38,15 @@ public interface OssService extends BaseService<OssEntity> {
      * @date 2019/9/19 10:09
      */
     Result<UploadDTO> afterUpload(String url, long size);
+
+    /**
+     * 根据url下载图片到浏览器
+     *
+     * @param fileUrl
+     * @param response
+     * @return void
+     * @author work@yujt.net.cn
+     * @date 2019/12/10 17:23
+     */
+    void download(String fileUrl, HttpServletResponse response);
 }

esua-epdc/epdc-module/epdc-oss/epdc-oss-server/src/main/java/com/elink/esua/epdc/service/impl/OssServiceImpl.java

@@ -12,9 +12,7 @@ import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.elink.esua.epdc.commons.mybatis.service.impl.BaseServiceImpl;
 import com.elink.esua.epdc.commons.tools.constant.Constant;
-import com.elink.esua.epdc.commons.tools.page.PageData;
+import com.elink.esua.epdc.commons.tools.constant.NumConstant;
-import com.elink.esua.epdc.commons.mybatis.service.impl.BaseServiceImpl;
-import com.elink.esua.epdc.commons.tools.constant.Constant;
 import com.elink.esua.epdc.commons.tools.page.PageData;
 import com.elink.esua.epdc.commons.tools.utils.Result;
 import com.elink.esua.epdc.dao.OssDao;
@@ -23,6 +21,11 @@ import com.elink.esua.epdc.entity.OssEntity;
 import com.elink.esua.epdc.service.OssService;
 import org.springframework.stereotype.Service;
 
+import javax.servlet.http.HttpServletResponse;
+import java.io.*;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLEncoder;
 import java.util.Date;
 import java.util.Map;
 
@@ -53,4 +56,45 @@ public class OssServiceImpl extends BaseServiceImpl<OssDao, OssEntity> implement
 
         return new Result<UploadDTO>().ok(dto);
     }
+
+    @Override
+    public void download(String fileUrl, HttpServletResponse response) {
+        URL url;
+        try {
+            url = new URL(fileUrl);
+
+            DataInputStream dataInputStream = new DataInputStream(url.openStream());
+            if (null != dataInputStream) {
+
+                String filename = fileUrl.substring(fileUrl.lastIndexOf("/") + 1);
+                // 设定输出文件头
+                response.setHeader("Content-disposition", "attachment; filename=" + URLEncoder.encode(filename, "UTF-8"));
+
+                response.setCharacterEncoding("UTF-8");
+                response.setHeader("Pragma", "No-Cache");
+                response.setHeader("Cache-Control", "No-Cache");
+                response.setDateHeader("Expires", 0);
+                response.setContentType("application/msexcel; charset=UTF-8");
+
+                byte[] buf = new byte[1024];
+                int L;
+
+                OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
+                while ((L = dataInputStream.read(buf)) != NumConstant.ONE_NEG) {
+                    toClient.write(buf, NumConstant.ZERO, L);
+                }
+                dataInputStream.close();
+                toClient.flush();
+                toClient.close();
+            }
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+    }
+
 }