20260327消耗优化

src/main/java/com/example/demo/password/ExcelProcessor.java

@@ -19,44 +19,43 @@ public class ExcelProcessor {
         String inputFilePath = "D:\\地区导出.xls"; // 输入文件路径
         String outputFilePath = "D:\\output.xlsx"; // 输出文件路径
 
-        try (FileInputStream fis = new FileInputStream(new File(inputFilePath));
-             Workbook workbook = new HSSFWorkbook(fis);
-             FileOutputStream fos = new FileOutputStream(new File(outputFilePath))) {
+        try (FileInputStream fis = new FileInputStream(inputFilePath);
+             HSSFWorkbook oldWorkbook = new HSSFWorkbook(fis)) {
 
-            Sheet sheet = workbook.getSheetAt(0); // 获取第一个工作表
+            Sheet sheet = oldWorkbook.getSheetAt(0);
             RestTemplate restTemplate = new RestTemplate();
 
-            // 创建新的输出工作簿
-            Workbook outputWorkbook = new XSSFWorkbook();
-            Sheet outputSheet = outputWorkbook.createSheet("Result");
-            Row headerRow = outputSheet.createRow(0);
-            headerRow.createCell(0).setCellValue("jwcode");
-            headerRow.createCell(1).setCellValue("name");
-            headerRow.createCell(2).setCellValue("country");
+            // 2. 单独创建新xlsx + 输出流（必须放一起自动关闭）
+            try (FileOutputStream fos = new FileOutputStream(outputFilePath);
+                 XSSFWorkbook outputWorkbook = new XSSFWorkbook()) {
 
-            int outputRowIndex = 1;
+                Sheet outputSheet = outputWorkbook.createSheet("Result");
+                Row headerRow = outputSheet.createRow(0);
+                headerRow.createCell(0).setCellValue("jwcode");
+                headerRow.createCell(1).setCellValue("name");
+                headerRow.createCell(2).setCellValue("country");
 
-            // 遍历输入文件的每一行
-            for (int i = 1; i <= sheet.getLastRowNum(); i++) { // 假设第一行是标题
-                Row row = sheet.getRow(i);
-                if (row == null) continue;
+                int outputRowIndex = 1;
 
-                String jwcode = row.getCell(1).getStringCellValue(); // 假设 jwcode 在第一列
-                System.out.println("Processing jwcode: " + jwcode);
+                for (int i = 1; i <= sheet.getLastRowNum(); i++) {
+                    Row row = sheet.getRow(i);
+                    if (row == null) continue;
 
-                // 调用接口
-                Map<String, String> result = callApi(jwcode, restTemplate);
+                    String jwcode = row.getCell(1).getStringCellValue();
+                    Map<String, String> result = callApi(jwcode, restTemplate);
 
-                // 写入结果到新 Excel 文件
-                Row outputRow = outputSheet.createRow(outputRowIndex++);
-                outputRow.createCell(0).setCellValue(jwcode);
-                outputRow.createCell(1).setCellValue(result.getOrDefault("name", "未知"));
-                outputRow.createCell(2).setCellValue(result.getOrDefault("country", "未知"));
+                    Row outputRow = outputSheet.createRow(outputRowIndex++);
+                    outputRow.createCell(0).setCellValue(jwcode);
+                    outputRow.createCell(1).setCellValue(result.getOrDefault("name", "未知"));
+                    outputRow.createCell(2).setCellValue(result.getOrDefault("country", "未知"));
+                }
+
+                // 3. 写入 + 强制刷盘
+                outputWorkbook.write(fos);
+                fos.flush();
             }
 
-            // 保存输出文件
-            outputWorkbook.write(fos);
-            System.out.println("Processing completed. Output file saved to: " + outputFilePath);
+            System.out.println("文件生成成功：" + outputFilePath);
 
         } catch (Exception e) {
             e.printStackTrace();