파일 다운로드 추가

pav-server/src/main/java/com/palnet/biz/api/bas/flight/template/service/TemplateService.java

@@ -1,16 +1,13 @@
 package com.palnet.biz.api.bas.flight.template.service;
 
 import java.io.File;
-import java.io.FileOutputStream;
+import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.StringReader;
-import java.nio.charset.Charset;
-import java.nio.file.Files;
-import java.nio.file.Paths;
+import java.io.OutputStream;
+import java.net.URLEncoder;
 import java.time.Instant;
-import java.util.Map;
-import java.util.Map.Entry;
+import java.util.Objects;
 
 import javax.servlet.http.HttpServletResponse;
 import javax.transaction.Transactional;
@@ -119,7 +116,43 @@ public class TemplateService {
         ComFileBas comFileBas = comFileBasRepository.findById(fileSno).orElse(null);
         if(comFileBas == null) throw new CustomException(ErrorCode.DATA_NOTFIND); 
 
-        log.info("comFileBas -> {}", comFileBas);
+        InputStream inputStream = null;
+        OutputStream outputStream = null;
+
+        try {
+            File pdfFile = new File(comFileBas.getFilePath() + comFileBas.getFileSaveNm());            
+            inputStream = new FileInputStream(pdfFile);            
+
+            String fileOriName = comFileBas.getFileOriNm();
+            fileOriName = URLEncoder.encode(comFileBas.getFileOriNm(), "UTF-8");
+
+            response.setContentType("application/octet-stream");
+            response.setCharacterEncoding("UTF-8");
+			response.setHeader("Content-Disposition", "attachment; filename=\"" + fileOriName + "\"");
+            response.setContentLengthLong(Long.parseLong(comFileBas.getFileSize()));
+            response.setStatus(HttpServletResponse.SC_OK);
+
+            outputStream = response.getOutputStream();
+
+            byte[] buffer = new byte[1024]; //1KB 설정
+			int length;
+            
+            while((length = inputStream.read(buffer)) != -1) {				
+				outputStream.write(buffer);
+			}
+
+        } catch (Exception e) {
+            e.printStackTrace();
+		} finally {		
+            try {
+                Objects.requireNonNull(outputStream).flush();
+                outputStream.close();                
+                inputStream.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+			
+		}
 
     }