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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。

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This commit is contained in:
duandongmei
2019-01-29 09:20:33 +06:00
parent 453ed153bc
commit 32d4ad3cd7
1 changed files with 22 additions and 5 deletions
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23
src/main/java/com/nis/util/excel/XLSXCovertCSVReader.java
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@@ -8,7 +8,9 @@ import java.sql.SQLException;
import java.text.SimpleDateFormat; import java.text.SimpleDateFormat;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Date; import java.util.Date;
import java.util.HashMap;
import java.util.List; import java.util.List;
import java.util.Map;
import javax.xml.parsers.ParserConfigurationException; import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParser;
@@ -32,6 +34,8 @@ import org.xml.sax.SAXException;
import org.xml.sax.XMLReader; import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler; 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 * 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 // The last column printed to the output stream
private int lastColumnNumber = -1; private int lastColumnNumber = -1;
private List<Object> rowlist = new ArrayList<Object>(); private List<Object> rowlist = new ArrayList<Object>();
private Map<Integer,Object> rowMap = new HashMap<Integer, Object>();
// Gathers characters as they are seen. // Gathers characters as they are seen.
private StringBuffer value; private StringBuffer value;
// private String[] record; // private String[] record;
@@ -128,6 +133,7 @@ public abstract class XLSXCovertCSVReader {
this.nextDataType = xssfDataType.NUMBER; this.nextDataType = xssfDataType.NUMBER;
this.formatter = new DataFormatter(); this.formatter = new DataFormatter();
rowlist.clear();// 每次读取都清空行集合 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); int len = countNullCell(refnum, preRefnum);
for(int i=0;i<len;i++){ for(int i=0;i<len;i++){
rowlist.add(curCol, ""); rowlist.add(curCol, "");
rowMap.put(thisColumn, "");
curCol++; curCol++;
} }
} }
@@ -298,6 +305,7 @@ public abstract class XLSXCovertCSVReader {
} }
// System.out.println("refnum="+refnum+"preRefnum="+preRefnum+"curCol="+curCol); // System.out.println("refnum="+refnum+"preRefnum="+preRefnum+"curCol="+curCol);
rowlist.add(curCol, thisVal); rowlist.add(curCol, thisVal);
rowMap.put(thisColumn, thisVal);
rowData.add(new IndexValue(refnum,lastContents) ); rowData.add(new IndexValue(refnum,lastContents) );
curCol++; curCol++;
// record[thisColumn] = thisStr; // record[thisColumn] = thisStr;
@@ -324,15 +332,22 @@ public abstract class XLSXCovertCSVReader {
int len = countNullCell(maxRefnum, refnum); int len = countNullCell(maxRefnum, refnum);
for(int i=0;i<=len;i++){ for(int i=0;i<=len;i++){
rowlist.add(curCol, ""); rowlist.add(curCol, "");
//rowMap.put(thisColumn, "");
curCol++; curCol++;
} }
int totalLen= countTotalCell(maxRefnum); int totalLen= countTotalCell(maxRefnum);
if(rowlist.size()<totalLen) { if(rowlist.size()<totalLen) {
List<Object> tempList=new ArrayList<>(totalLen); List<Object> tempList=new ArrayList<>(totalLen);
for(int i=0;i<(totalLen-rowlist.size());i++) { //修改某一个单元格为空，字段映射顺序错乱问题
tempList.add(""); 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; rowlist= tempList;
} }
} }
@@ -343,6 +358,7 @@ public abstract class XLSXCovertCSVReader {
optRows(sheetIndex,lastColumnNumber,rowlist); optRows(sheetIndex,lastColumnNumber,rowlist);
rowlist.clear(); rowlist.clear();
rowMap.clear();
// rows.add(record.clone()); // rows.add(record.clone());
isCellNull = false; isCellNull = false;
// for (int i = 0; i < record.length; i++) { // for (int i = 0; i < record.length; i++) {
@@ -352,6 +368,7 @@ public abstract class XLSXCovertCSVReader {
} }
rowlist.clear(); rowlist.clear();
rowData.clear(); rowData.clear();
rowMap.clear();
curCol = 0; curCol = 0;
preRefnum = null; preRefnum = null;
refnum = null; refnum = null;