From 5a5e462a29f618f56fd5f08e28f56c393d31e20f Mon Sep 17 00:00:00 2001
From: zhn <947514737@qq.com>
Date: Thu, 24 Mar 2022 16:58:45 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=87=E6=A1=A3=E5=BA=93-=E9=87=8D=E6=8B=89?=
 =?UTF-8?q?=E4=B8=8B=E8=BD=BD=E6=8E=A5=E5=8F=A3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../system/controller/CommonController.java   | 64 ++++++++++++++++++-
 1 file changed, 63 insertions(+), 1 deletion(-)

diff --git a/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/controller/CommonController.java b/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/controller/CommonController.java
index f8365280f..80a66efb6 100644
--- a/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/controller/CommonController.java
+++ b/jero-boot/jero-boot-module-system/src/main/java/com/jero/modules/system/controller/CommonController.java
@@ -250,7 +250,7 @@ public class CommonController {
 //
 //    }
     /**
-     * 下载文件
+     * word,excel预览
      *
      * @param id 传入文件id
      * @param request
@@ -314,6 +314,68 @@ public class CommonController {
             }
         }
 
+    }
+    /**
+     * 文件下载
+     *
+     * @param id 传入文件id
+     * @param request
+     * @param response
+     */
+    @GetMapping(value = "/downLoadFile")
+    public void downLoadFile(String id,HttpServletRequest request, HttpServletResponse response) {
+        // 查询数据表数据是否存在
+        LambdaQueryWrapper<OSSFile> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(OSSFile::getId,id);
+        OSSFile ossFile = ossFileService.getOne(queryWrapper);
+        if( null == ossFile){
+            throw new JeroBootException("文件不存在");
+        }
+        InputStream inputStream = null;
+        OutputStream outputStream = null;
+        try {
+            String fileName = "";
+            //本地下载
+            String filePath = ossFile.getUrl();
+            File file = new File(filePath);
+            if(!file.exists()){
+                response.setStatus(404);
+                throw new RuntimeException("文件不存在..");
+            }
+            // 文件名称
+            fileName = file.getName();
+            inputStream = new BufferedInputStream(new FileInputStream(filePath));
+            response.setContentType("application/force-download");// 设置强制下载不打开
+            response.addHeader("Content-Disposition", "attachment;fileName=" + new String(file.getName().getBytes("UTF-8"),"iso-8859-1"));
+            inputStream = new BufferedInputStream(new FileInputStream(filePath));
+            outputStream = response.getOutputStream();
+            byte[] buf = new byte[1024];
+            int len;
+            while ((len = inputStream.read(buf)) > 0) {
+                outputStream.write(buf, 0, len);
+            }
+            response.flushBuffer();
+        } catch (IOException e) {
+            log.error("文件下载失败" + e.getMessage());
+            response.setStatus(404);
+            e.printStackTrace();
+        } finally {
+            if (inputStream != null) {
+                try {
+                    inputStream.close();
+                } catch (IOException e) {
+                    log.error(e.getMessage(), e);
+                }
+            }
+            if (outputStream != null) {
+                try {
+                    outputStream.close();
+                } catch (IOException e) {
+                    log.error(e.getMessage(), e);
+                }
+            }
+        }
+
     }
     /**
      * 文件预览