Finish Task #9031 Cost:3h 开发导出word

server/src/main/java/cn/keking/service/ContractService.java

@@ -9,6 +9,7 @@ import cn.keking.exception.KkFileException;
 import cn.keking.service.impl.OtherFilePreviewImpl;
 import cn.keking.utils.Consts;
 import cn.keking.utils.WebUtils;
+import com.alibaba.fastjson2.JSON;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.collections4.MapUtils;
@@ -281,6 +282,37 @@ public class ContractService {
             }
         }
     }
+    public File downloadExcel(String templateName, Map<String, Object> dataMap) throws Exception {
+        OutputStream os = null;
+        try {
+            File outFile = new File(Consts.uploadAbsDir());
+            if (!outFile.exists()) {
+                outFile.mkdirs();
+            }
+            String templatePath = Consts.getTemplatePath();
+            String abTemplatePath = templatePath + File.separator + templateName + ".xlsx";
+            //判断模板是否存在
+            File file = new File(abTemplatePath);
+            if(!file.exists()){
+                throw new KkFileException("请先上传模板!");
+            }
+
+            String excelFile = "/"+ UUID.randomUUID().toString().replace("-", "") + ".xlsx";
+            //通过填参 生产文件 并放到 upload 文件夹中
+            String path = Consts.uploadAbsDir();
+            String pathFile = path + excelFile;
+            os = new FileOutputStream(pathFile);
+            TemplateExportParams params = new TemplateExportParams(
+                    abTemplatePath);
+            Workbook workbook = ExcelExportUtil.exportExcel(params, dataMap);
+            workbook.write(os);
+            return  new File(pathFile);
+        } finally {
+            if (os != null) {
+                os.close();
+            }
+        }
+    }
 
 
 
@@ -360,4 +392,5 @@ public class ContractService {
             }
         }
     }
+
 }

server/src/main/java/cn/keking/web/controller/ContractController.java

@@ -129,6 +129,49 @@ public class ContractController {
         }
     }
 
+    /**
+     * @return 下载合同excel文件
+     */
+    @ApiParam("下载excel文件")
+    @PostMapping("/downloadExcel/{templateName}")
+    public ServiceResponse downloadExcel(
+        @PathVariable String templateName,
+            @RequestBody Map<String, Object> dataMap,
+            HttpServletResponse response
+    ) {
+        try {
+            log.error(JSON.toJSONString(dataMap));
+            OutputStream outstream = null;
+            File file = contractService.downloadExcel(templateName, dataMap);
+            outstream = response.getOutputStream();
+            response.setCharacterEncoding("utf-8");
+            response.setContentType("application/octet-stream");
+            String filename =file.getName();
+            response.reset();
+            // 设置response的Header
+            response.addHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes()));
+            response.addHeader("Content-Length", "" + file.length());
+            // 刷新缓冲
+            response.flushBuffer();
+            FileInputStream fileInputStream = new FileInputStream(file);
+            BufferedInputStream bufferedInputStream = new BufferedInputStream(fileInputStream);
+            byte[] b = new byte[bufferedInputStream.available()];
+            bufferedInputStream.read(b);
+            outstream.write(b);
+            bufferedInputStream.close();
+            outstream.flush();
+            outstream.close();
+            return new ServiceResponse<>("success",
+                    ServiceResponse.RESULT_CODE_SUCCESS_CODE);
+        } catch (Exception e) {
+            log.error("生成错误:", e);
+            if (e instanceof KkFileException) {
+                KkFileException kkFileException = (KkFileException) e;
+                return new ServiceResponse<>(null, kkFileException.getMessage(), ServiceResponse.RESULT_CODE_ERROR_CODE);
+            }
+            return new ServiceResponse<>(null, "fail", ServiceResponse.RESULT_SERVER_ERR_CODE);
+        }
+    }
     /**
      * @return 下载合同pdf文件
      */