diff --git a/common/src/main/java/com/jeesite/common/utils/excel/ExcelExport.java b/common/src/main/java/com/jeesite/common/utils/excel/ExcelExport.java
index 95453534..6819993e 100644
--- a/common/src/main/java/com/jeesite/common/utils/excel/ExcelExport.java
+++ b/common/src/main/java/com/jeesite/common/utils/excel/ExcelExport.java
@@ -18,7 +18,6 @@ import java.util.Map;
 
 import javax.servlet.http.HttpServletResponse;
 
-import org.apache.commons.lang3.StringUtils;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.CellStyle;
 import org.apache.poi.ss.usermodel.Comment;
@@ -37,11 +36,13 @@ import org.slf4j.LoggerFactory;
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.jeesite.common.codec.EncodeUtils;
 import com.jeesite.common.collect.ListUtils;
+import com.jeesite.common.lang.ObjectUtils;
+import com.jeesite.common.lang.StringUtils;
 import com.jeesite.common.reflect.ReflectUtils;
 import com.jeesite.common.utils.excel.annotation.ExcelField;
 import com.jeesite.common.utils.excel.annotation.ExcelField.Align;
-import com.jeesite.common.utils.excel.annotation.ExcelFields;
 import com.jeesite.common.utils.excel.annotation.ExcelField.Type;
+import com.jeesite.common.utils.excel.annotation.ExcelFields;
 
 /**
  * 导出Excel文件（导出“XLSX”格式，支持大数据量导出   @see org.apache.poi.ss.SpreadsheetVersion）
@@ -474,7 +475,7 @@ public class ExcelExport {
 //			}
 		} catch (Exception ex) {
 			log.info("Set cell value ["+row.getRowNum()+","+column+"] error: " + ex.toString());
-			cell.setCellValue(val.toString());
+			cell.setCellValue(ObjectUtils.toString(val));
 		}
 		return cell;
 	}
diff --git a/common/src/main/java/com/jeesite/common/utils/word/BookMark.java b/common/src/main/java/com/jeesite/common/utils/word/BookMark.java
index d827b01b..d46228c9 100644
--- a/common/src/main/java/com/jeesite/common/utils/word/BookMark.java
+++ b/common/src/main/java/com/jeesite/common/utils/word/BookMark.java
@@ -464,14 +464,14 @@ public class BookMark {
 				// Get the first node and catch it's reference for return if 
 				// the first child node is a style node (w:rPr). 
 				childNode = parentNode.getFirstChild();
-				if (childNode.getNodeName().equals("w:rPr")) {
+				if (childNode != null && childNode.getNodeName().equals("w:rPr")) {
 					styleNode = childNode;
 				} else {
 					// If the first node was not a style node and there are other 
 					// child nodes remaining to be checked, then step through 
 					// the remaining child nodes until either a style node is 
 					// found or until all child nodes have been processed. 
-					while ((childNode = childNode.getNextSibling()) != null) {
+					while (childNode != null && (childNode = childNode.getNextSibling()) != null) {
 						if (childNode.getNodeName().equals(BookMark.STYLE_NODE_NAME)) {
 							styleNode = childNode;
 							// Note setting to null here if a style node is 
diff --git a/common/src/main/java/com/jeesite/common/utils/word/WordExport.java b/common/src/main/java/com/jeesite/common/utils/word/WordExport.java
index 3eb88a9d..821db15f 100644
--- a/common/src/main/java/com/jeesite/common/utils/word/WordExport.java
+++ b/common/src/main/java/com/jeesite/common/utils/word/WordExport.java
@@ -221,8 +221,12 @@ public class WordExport {
 			e.printStackTrace();
 		} finally {
 			try {
-				fos.flush();
-				fos.close();
+				if (fos != null){
+					fos.flush();
+				}
+				if (fos != null){
+					fos.close();
+				}
 			} catch (IOException e) {
 				e.printStackTrace();
 			}
diff --git a/common/src/test/java/com/jeesite/test/HttpClientTest.java b/common/src/test/java/com/jeesite/test/HttpClientTest.java
deleted file mode 100644
index 8e4b9264..00000000
--- a/common/src/test/java/com/jeesite/test/HttpClientTest.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package com.jeesite.test;
-
-import java.util.Map;
-
-import com.jeesite.common.collect.MapUtils;
-import com.jeesite.common.web.http.HttpClientUtils;
-
-public class HttpClientTest {
-
-	public static void main(String[] args) {
-		
-		String url = "http://:8080/multData/a/login";
-
-		Map<String, String> map = MapUtils.newHashMap();
-		
-		map.put("currentDataSource", "86fecee8d2e04bbe8e6c23dff9338f66");
-		map.put("mobileLogin", "true");
-		map.put("username", "system");
-		map.put("password", "admin");
-		
-		String res = HttpClientUtils.ajaxPost(url, map);
-		System.out.println(res);
-		
-	}
-}