数据下载动态表头文本增加截取处理

src/main/java/com/zhiwei/brandkbs2/config/Constant.java

@@ -26,10 +26,14 @@ public class Constant {
     public static final String MONTH_PATTERN = "yyyy-MM";
     public static final String YEAR_PATTERN = "yyyy";
 
+    public static final String SECOND_PATTERN = "yyyy-MM-dd HH:mm:ss";
+
     public static final FastDateFormat SPEC_MINUTE_FORMAT = FastDateFormat.getInstance(SPEC_MINUTE_PATTERN);
     public static final FastDateFormat SPEC_DAY_POINT_FORMAT = FastDateFormat.getInstance(SPEC_DAY_PATTERN);
     public static final FastDateFormat HOUR_FORMAT = FastDateFormat.getInstance(HOUR_PATTERN);
     public static final FastDateFormat DAY_FORMAT = FastDateFormat.getInstance(DAY_PATTERN);
+
+    public static final FastDateFormat EXCEL_TIME_FORMAT = FastDateFormat.getInstance(SECOND_PATTERN);
     public static final FastDateFormat SPEC_DAY_FORMAT = FastDateFormat.getInstance("yyyy/MM/dd");
     public static final FastDateFormat ONLY_MONTH_FORMAT = FastDateFormat.getInstance("M月");
     public static final FastDateFormat DF_yyyyMMdd = FastDateFormat.getInstance("yyyyMMdd");

src/main/java/com/zhiwei/brandkbs2/easyexcel/EasyExcelUtil.java

@@ -9,6 +9,7 @@ import com.alibaba.excel.write.metadata.WriteSheet;
 import com.zhiwei.brandkbs2.easyexcel.config.ReadExcelDTO;
 import com.zhiwei.brandkbs2.easyexcel.config.WriteExcelDTO;
 import com.zhiwei.brandkbs2.util.Tools;
+import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -26,6 +27,7 @@ import java.nio.channels.ReadableByteChannel;
 import java.nio.channels.WritableByteChannel;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 /**
  * @author sjj
@@ -112,7 +114,7 @@ public class EasyExcelUtil {
      */
     public static <T> void write(String filePath, String sheetName, Class<T> clazz, List<T> datas) {
         try {
-            formatExcelExports(clazz, datas);
+            formatExcelExports(clazz, datas, null);
             EasyExcel.write(filePath, clazz).sheet(sheetName).doWrite(datas);
         } catch (Exception e) {
             log.error("file:{}，write error：", filePath, e);
@@ -172,6 +174,7 @@ public class EasyExcelUtil {
      */
     public static void dynamicHeadWrite(String filePath, String sheetName, List<List<String>> head, List<List<Object>> datas) {
         try {
+            formatExcelExports(null, null, datas);
             EasyExcel.write(filePath).head(head).sheet(sheetName).doWrite(datas);
         } catch (Exception e) {
             log.error("file:{}，write error：", filePath, e);
@@ -190,7 +193,7 @@ public class EasyExcelUtil {
      */
     public static <T> void download(String fileName, String sheetName, Class<T> clazz, List<T> datas, HttpServletResponse response) {
         try {
-            formatExcelExports(clazz, datas);
+            formatExcelExports(clazz, datas, null);
             response.setContentType("application/vnd.ms-excel");
             response.setCharacterEncoding("utf-8");
             // 这里URLEncoder.encode可以防止中文乱码
@@ -238,11 +241,12 @@ public class EasyExcelUtil {
         return filePath + Tools.concat(projectName, nickName, System.currentTimeMillis(), fileName) + ".xlsx";
     }
 
-    private static <T> void formatExcelExports(Class<T> clazz, List<T> datas){
+    private static <T> void formatExcelExports(Class<T> clazz, List<T> datas, List<List<Object>> dynamicDatas){
+        if (Objects.nonNull(clazz)) {
             List<Field> stringFields = new ArrayList<>();
             // 记录需要设置的部分
             for (Field field : clazz.getDeclaredFields()) {
-            // String格式截取前32767位
+                // String格式截取前5000位
                 if (field.getGenericType().toString().equals(String.class.toString())) {
                     field.setAccessible(true);
                     stringFields.add(field);
@@ -252,12 +256,22 @@ public class EasyExcelUtil {
                 for (Field field : stringFields) {
                     try {
                         // 截取为excel单元格允许的最大长度
-                    field.set(data, StringUtils.substring((String) (field.get(data)), 0, 32767));
+                        field.set(data, StringUtils.substring((String) (field.get(data)), 0, 5000));
                     } catch (IllegalAccessException e) {
                         log.error(e);
                     }
                 }
             });
         }
-
+        if (CollectionUtils.isNotEmpty(dynamicDatas)){
+            for (List<Object> dynamicData : dynamicDatas) {
+                dynamicData.replaceAll(obj -> {
+                    if (Objects.nonNull(obj)) {
+                        obj = StringUtils.substring(String.valueOf(obj), 0, 5000);
+                    }
+                    return obj;
+                });
+            }
+        }
+    }
 }

src/main/java/com/zhiwei/brandkbs2/service/impl/MarkDataServiceImpl.java

@@ -5183,7 +5183,7 @@ public class MarkDataServiceImpl implements MarkDataService {
         for (JSONObject hit : hits) {
             BaseMap baseMap = Tools.getBaseFromEsMap(hit);
             List<Object> data = new ArrayList<>();
-            data.add(new Date(baseMap.getTime()));
+            data.add(Constant.EXCEL_TIME_FORMAT.format(baseMap.getTime()));
             data.add(baseMap.getPlatform());
             data.add(baseMap.getSource());
             data.add(baseMap.getTitle());