实现文件上传和数据库记录、Element+vue登录注册UI

2018-02-03 20:44:25 +08:00
parent bc720e6270
commit b9d60e644b
23 changed files with 846 additions and 24 deletions
--- a/src/main/java/com/fjy/spring/controller/DownLoadController.java
+++ b/src/main/java/com/fjy/spring/controller/DownLoadController.java
@@ -0,0 +1,94 @@
+package com.fjy.spring.controller;
+
+import com.fjy.spring.domain.TbFile;
+import com.fjy.spring.enums.ResultEnum;
+import com.fjy.spring.exception.UserException;
+import com.fjy.spring.service.FileService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.*;
+import java.util.List;
+
+@Controller
+public class DownLoadController {
+    @Autowired
+    private FileService fileService;
+
+    @GetMapping("/download")
+    public String toDownloadPage(){
+        return "download";
+    }
+
+    @GetMapping("/download/findall")
+    @ResponseBody
+    public List<TbFile> toDownloadAll(){
+        List<TbFile> files = fileService.findAllFile();//此处做空指针判断并抛出错误
+        if (files!=null)
+            return files;
+        new UserException(ResultEnum.EMPTY_DATA);
+        return null;
+    }
+
+    @RequestMapping("/download/dodownload")
+    public String download(@RequestParam String fileName , HttpServletRequest request, HttpServletResponse response){
+
+        response.setContentType("text/html;charset=utf-8");
+        try {
+            request.setCharacterEncoding("UTF-8");
+        } catch (UnsupportedEncodingException e1) {
+            e1.printStackTrace();
+        }
+        java.io.BufferedInputStream bis = null;
+        java.io.BufferedOutputStream bos = null;
+
+        TbFile file = new TbFile();
+        file.setColfilename(fileName);
+
+        TbFile tbFile = fileService.findFile(file);
+
+        System.out.println(tbFile.getColfilepath());
+
+        String ctxPath = tbFile.getColfilepath();
+        String downLoadPath = ctxPath + fileName;
+        System.out.println(downLoadPath);
+        try {
+            long fileLength = new File(downLoadPath).length();
+            response.setContentType("application/x-msdownload;");
+            response.setHeader("Content-disposition", "attachment; filename=" + new String(fileName.getBytes("utf-8"), "ISO8859-1"));
+            response.setHeader("Content-Length", String.valueOf(fileLength));
+            bis = new BufferedInputStream(new FileInputStream(downLoadPath));
+            bos = new BufferedOutputStream(response.getOutputStream());
+            byte[] buff = new byte[2048];
+            int bytesRead;
+            while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
+                bos.write(buff, 0, bytesRead);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if (bis != null)
+                try {
+                    bis.close();
+                } catch (IOException e) {
+                    // TODO Auto-generated catch block
+                    e.printStackTrace();
+                }
+            if (bos != null)
+                try {
+                    bos.close();
+                } catch (IOException e) {
+                    // TODO Auto-generated catch block
+                    e.printStackTrace();
+                }
+        }
+        return null;
+
+    }
+}