fix:89620

laws-modules/src/main/java/com/jero/modules/activiti/process/standardinterpret/service/impl/StandardInterpretFlowServiceImpl.java

@@ -79,6 +79,7 @@ import org.activiti.engine.runtime.ProcessInstance;
 import org.activiti.engine.task.Task;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.poi.ss.SpreadsheetVersion;
 import org.apache.shiro.SecurityUtils;
 import org.jeecgframework.poi.excel.ExcelImportUtil;
 import org.jeecgframework.poi.excel.def.NormalExcelConstants;
@@ -1083,7 +1084,7 @@ public class StandardInterpretFlowServiceImpl implements StandardInterpretFlowSe
 
             exportList = BeanCopyUtils.copyBeanList(exportList2, ProcessStandardInterpretClauseSublist.class);
         }
-
+        resetCellMaxTextLength();
         // Step.3 AutoPoi 导出Excel
         ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
         try {
@@ -1101,6 +1102,23 @@ public class StandardInterpretFlowServiceImpl implements StandardInterpretFlowSe
         return mv;
     }
 
+    public static void resetCellMaxTextLength() {
+        SpreadsheetVersion excel2007 = SpreadsheetVersion.EXCEL2007;
+        if (Integer.MAX_VALUE != excel2007.getMaxTextLength()) {
+            Field field;
+            try {
+                // SpreadsheetVersion.EXCEL2007的_maxTextLength变量
+                field = excel2007.getClass().getDeclaredField("_maxTextLength");
+                // 关闭反射机制的安全检查，可以提高性能
+                field.setAccessible(true);
+                // 重新设置这个变量属性值
+                field.set(excel2007, Integer.MAX_VALUE);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
     @Override
     public void flowCountersign(String taskId, String userId, String projectId) {
         ProcessStandardInterpret processStandardInterpret = processStandardInterpretService.getOne(