修复配置导入Excel文件存在空行时，错误信息行号与文件行号对不上bug

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

@@ -112,7 +112,8 @@ public abstract class XLSXCovertCSVReader {
 //        private String[] record;  
       //  private List<String[]> rows = new ArrayList<String[]>();  
         private boolean isCellNull = false;  
-  
+        
+        private int upRowId; // 记录上一行行号
         /** 
          * Accepts objects needed while parsing. 
          *  
@@ -203,8 +204,23 @@ public abstract class XLSXCovertCSVReader {
                     if (this.formatString == null)  
                         this.formatString = BuiltinFormats  
                                 .getBuiltinFormat(this.formatIndex);  
-                }  
-            }  
+                }
+                
+            }else if("row".equals(name)) {
+            	// 获取行号
+            	String r = attributes.getValue("r"); 
+            	int index = Integer.parseInt(r);
+            	
+            	int gap = index - upRowId;
+                if(gap > 1) { // 存在空行
+                	while(gap > 1) {
+                		optRows(sheetIndex,lastColumnNumber,rowlist);
+                		gap--;
+                	}
+                	
+                }
+                upRowId = index;
+            } 
             lastContents = "";  
         }