导入处理无数据的单元格，记录所有有数据的单元格及下标，最后将无数据的单元格根据下标补全。

src/main/java/com/nis/util/excel/XLSXCovertCSVReader.java

@@ -8,7 +8,9 @@ import java.sql.SQLException;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import javax.xml.parsers.ParserConfigurationException;
 import javax.xml.parsers.SAXParser;
@@ -32,6 +34,8 @@ import org.xml.sax.SAXException;
 import org.xml.sax.XMLReader;
 import org.xml.sax.helpers.DefaultHandler;
 
+import com.nis.util.StringUtil;
+
   
 /** 
  * 使用CVS模式解决XLSX文件，可以有效解决用户模式内存溢出的问题 
@@ -102,6 +106,7 @@ public abstract class XLSXCovertCSVReader {
         // The last column printed to the output stream  
         private int lastColumnNumber = -1;  
         private List<Object> rowlist = new ArrayList<Object>();  
+        private Map<Integer,Object> rowMap = new HashMap<Integer, Object>();
         // Gathers characters as they are seen.  
         private StringBuffer value;  
 //        private String[] record;  
@@ -128,6 +133,7 @@ public abstract class XLSXCovertCSVReader {
             this.nextDataType = xssfDataType.NUMBER;  
             this.formatter = new DataFormatter();  
             rowlist.clear();// 每次读取都清空行集合  
+            rowMap.clear();
         }  
   
         /* 
@@ -287,6 +293,7 @@ public abstract class XLSXCovertCSVReader {
                     int len = countNullCell(refnum, preRefnum);  
                     for(int i=0;i<len;i++){  
                         rowlist.add(curCol, ""); 
+                        rowMap.put(thisColumn, "");
                         curCol++;  
                     }  
                 }  
@@ -298,6 +305,7 @@ public abstract class XLSXCovertCSVReader {
                 }
 //                System.out.println("refnum="+refnum+"preRefnum="+preRefnum+"curCol="+curCol);
                 rowlist.add(curCol, thisVal); 
+                rowMap.put(thisColumn, thisVal);
                 rowData.add(new IndexValue(refnum,lastContents) );
                 curCol++;   
               //  record[thisColumn] = thisStr;  
@@ -324,15 +332,22 @@ public abstract class XLSXCovertCSVReader {
                         int len = countNullCell(maxRefnum, refnum);  
                         for(int i=0;i<=len;i++){  
                             rowlist.add(curCol, ""); 
+                            //rowMap.put(thisColumn, "");
                             curCol++;  
                         } 
                        int totalLen= countTotalCell(maxRefnum);
                        if(rowlist.size()<totalLen) {
                     	   List<Object> tempList=new ArrayList<>(totalLen);
-                    	   for(int i=0;i<(totalLen-rowlist.size());i++) {
-                    		   tempList.add("");
+                    	   //修改某一个单元格为空，字段映射顺序错乱问题
+                    	   for(int i=0;i<totalLen;i++) {
+                    		   if(!StringUtil.isEmpty(rowMap.get(i))){
+                    			   tempList.add(rowMap.get(i));
+                    		   }else{
+                    			   tempList.add(i,"");
+                    		   }
+                    		   
                     	   }
-                    	   tempList.addAll(rowlist);
+                    	   //tempList.addAll(rowlist);
                     	   rowlist= tempList;
                        }
                     }  
@@ -343,6 +358,7 @@ public abstract class XLSXCovertCSVReader {
                     	optRows(sheetIndex,lastColumnNumber,rowlist);
                     	
                     	rowlist.clear();
+                    	rowMap.clear();
 //                        rows.add(record.clone());  
                         isCellNull = false;  
 //                        for (int i = 0; i < record.length; i++) {  
@@ -352,6 +368,7 @@ public abstract class XLSXCovertCSVReader {
                 }  
                 rowlist.clear();
                 rowData.clear();
+                rowMap.clear();
                 curCol = 0;   
                 preRefnum = null;  
                 refnum = null;