根据 java 中的列名从 excel 中获取列值
get column value from excel based on column names in java
我想根据 java 中的列名读取 excel sheet。
我想获取与列名称相对应的列值,例如 get TXT_Policy_no in policy no string 等。
由于 excel sheet 值可能会受到影响,我想读取基于列名的值,以便更安全。
我想获取与列名称相对应的列值,例如 get TXT_Policy_no in policy no string 等。
由于 excel sheet 值可能会受到影响,我想读取基于列名的值以便更安全。
我的java代码:
for (int i = 0; i < listofexcel.length; i++)
{
if (listofexcel[i].isFile())
{
//System.out.println("File " + listOfCsv[i].getName());
Csv_list.add(listofexcel[i].getName());
} else if (listofexcel[i].isDirectory())
{
System.out.println("Directory " + listofexcel[i].getName());
}
}
Iterator itr = Csv_list.iterator();
while(itr.hasNext())
{
String CsvName = (String) itr.next();
System.out.println(CsvName);
ProcessMain worker = new ProcessMain(CsvName);
// Runnable worker = new UploadFiles(CsvName);
// System.out.println("^^^^^^^");
String csvpath= GlobalVariable.getCsv_path()+CsvName;
WFLogger.printOut(csvpath);
first(csvpath);
final File f2 = new File(csvpath);
if(f2.exists())
{
f2.delete();
}
//executor.execute(worker);
}
}
catch (NumberFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//Returns the Headings used inside the excel sheet
public void getHeadingFromXlsFile(Sheet sheet) {
int columnCount = sheet.getColumns();
for (int i = 0; i < columnCount; i++) {
System.out.println(sheet.getCell(i, 0).getContents());
}
}
private void first(String csvName) {
// TODO Auto-generated method stub
FileInputStream fs = null;
try {
fs = new FileInputStream(new File(csvName));
contentReading(fs);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}finally {
try {
fs.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void contentReading(FileInputStream fs) throws ClassNotFoundException, BiffException {
// TODO Auto-generated method stub
WorkbookSettings ws = null;
Workbook workbook = null;
Sheet s = null;
jxl.Cell[] rowData=null;
int rowCount = '0';
int columnCount = '0';
DateCell dc = null;
int totalSheet = 0;
ws = new WorkbookSettings();
ws.setLocale(new Locale("en", "EN"));
workbook = Workbook.getWorkbook(fs, ws);
totalSheet = workbook.getNumberOfSheets();
if(totalSheet > 0) {
System.out.println("Total Sheet Found:" + totalSheet);
String sheetName="";
for(int jj=0;jj<totalSheet ;jj++) {
sheetName=workbook.getSheet(jj).getName();
System.out.println("Sheet Name:" + sheetName);
s = workbook.getSheet(jj);
//Reading Individual Cell
//getHeadingFromXlsFile(s);
System.out.println("Total Rows inside Sheet:" + s.getRows());
rowCount = s.getRows();
System.out.println("Total Column inside Sheet:" + s.getColumns());
columnCount = s.getColumns();
//Reading Individual Row Content
for (int i = 1; i < rowCount; i++) {
//Get Individual Row
rowData = s.getRow(i);
if (rowData[0].getContents().length() != 0) {
int j=0;
String Claimno="";
String Product="";
String Mobileno="";
String Omniflag="N";
String Policyno="";
String Customername="";
String Certno="";
String Department="";
String lossdate="";
String Srno="";
for ( j = 0; j < columnCount; j++) {
try{
switch (j) {
case 0:
Srno= rowData[j].getContents();
break;
case 1:
Policyno=rowData[j].getContents();
break;
case 2:
Certno=rowData[j].getContents();
break;
case 3:
lossdate= rowData[j].getContents();
break;
case 4:
Department=rowData[j].getContents();
break;
case 5:
Product=rowData[j].getContents();
break;
case 6:
Claimno= rowData[j].getContents();
break;
case 7:
Customername=rowData[j].getContents();
break;
default:
break;
}
}catch (Exception e) {
System.out.print(e);
}
}
我假设我们知道哪一行包含 headers。然后我们可以遍历它的单元格并检查它们的值以收集有关列的信息。喜欢
int headerRow = sheet.getRow(n);
Map<String, Integer> columnIndexes = new HashMap();
for ( j = 0; j < columnCount; j++) {
switch (rowData[j].getContents()) {
case "TXT_Policy_no":
columnIndexes.put("TXT_Policy_no", j); break;
...
case "CLAIMNO":
columnIndexes.put("CLAIMNO", j); break;
}
}
地图填满后,您可以访问像
这样的单元格
int columnIndex = columnIndexes.get("CLAIMNO")
var cell = row.getCell(columnIndex);
我想根据 java 中的列名读取 excel sheet。
我想获取与列名称相对应的列值,例如 get TXT_Policy_no in policy no string 等。
由于 excel sheet 值可能会受到影响,我想读取基于列名的值,以便更安全。
我想获取与列名称相对应的列值,例如 get TXT_Policy_no in policy no string 等。 由于 excel sheet 值可能会受到影响,我想读取基于列名的值以便更安全。
我的java代码:
for (int i = 0; i < listofexcel.length; i++)
{
if (listofexcel[i].isFile())
{
//System.out.println("File " + listOfCsv[i].getName());
Csv_list.add(listofexcel[i].getName());
} else if (listofexcel[i].isDirectory())
{
System.out.println("Directory " + listofexcel[i].getName());
}
}
Iterator itr = Csv_list.iterator();
while(itr.hasNext())
{
String CsvName = (String) itr.next();
System.out.println(CsvName);
ProcessMain worker = new ProcessMain(CsvName);
// Runnable worker = new UploadFiles(CsvName);
// System.out.println("^^^^^^^");
String csvpath= GlobalVariable.getCsv_path()+CsvName;
WFLogger.printOut(csvpath);
first(csvpath);
final File f2 = new File(csvpath);
if(f2.exists())
{
f2.delete();
}
//executor.execute(worker);
}
}
catch (NumberFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//Returns the Headings used inside the excel sheet
public void getHeadingFromXlsFile(Sheet sheet) {
int columnCount = sheet.getColumns();
for (int i = 0; i < columnCount; i++) {
System.out.println(sheet.getCell(i, 0).getContents());
}
}
private void first(String csvName) {
// TODO Auto-generated method stub
FileInputStream fs = null;
try {
fs = new FileInputStream(new File(csvName));
contentReading(fs);
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}finally {
try {
fs.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void contentReading(FileInputStream fs) throws ClassNotFoundException, BiffException {
// TODO Auto-generated method stub
WorkbookSettings ws = null;
Workbook workbook = null;
Sheet s = null;
jxl.Cell[] rowData=null;
int rowCount = '0';
int columnCount = '0';
DateCell dc = null;
int totalSheet = 0;
ws = new WorkbookSettings();
ws.setLocale(new Locale("en", "EN"));
workbook = Workbook.getWorkbook(fs, ws);
totalSheet = workbook.getNumberOfSheets();
if(totalSheet > 0) {
System.out.println("Total Sheet Found:" + totalSheet);
String sheetName="";
for(int jj=0;jj<totalSheet ;jj++) {
sheetName=workbook.getSheet(jj).getName();
System.out.println("Sheet Name:" + sheetName);
s = workbook.getSheet(jj);
//Reading Individual Cell
//getHeadingFromXlsFile(s);
System.out.println("Total Rows inside Sheet:" + s.getRows());
rowCount = s.getRows();
System.out.println("Total Column inside Sheet:" + s.getColumns());
columnCount = s.getColumns();
//Reading Individual Row Content
for (int i = 1; i < rowCount; i++) {
//Get Individual Row
rowData = s.getRow(i);
if (rowData[0].getContents().length() != 0) {
int j=0;
String Claimno="";
String Product="";
String Mobileno="";
String Omniflag="N";
String Policyno="";
String Customername="";
String Certno="";
String Department="";
String lossdate="";
String Srno="";
for ( j = 0; j < columnCount; j++) {
try{
switch (j) {
case 0:
Srno= rowData[j].getContents();
break;
case 1:
Policyno=rowData[j].getContents();
break;
case 2:
Certno=rowData[j].getContents();
break;
case 3:
lossdate= rowData[j].getContents();
break;
case 4:
Department=rowData[j].getContents();
break;
case 5:
Product=rowData[j].getContents();
break;
case 6:
Claimno= rowData[j].getContents();
break;
case 7:
Customername=rowData[j].getContents();
break;
default:
break;
}
}catch (Exception e) {
System.out.print(e);
}
}
我假设我们知道哪一行包含 headers。然后我们可以遍历它的单元格并检查它们的值以收集有关列的信息。喜欢
int headerRow = sheet.getRow(n);
Map<String, Integer> columnIndexes = new HashMap();
for ( j = 0; j < columnCount; j++) {
switch (rowData[j].getContents()) {
case "TXT_Policy_no":
columnIndexes.put("TXT_Policy_no", j); break;
...
case "CLAIMNO":
columnIndexes.put("CLAIMNO", j); break;
}
}
地图填满后,您可以访问像
这样的单元格int columnIndex = columnIndexes.get("CLAIMNO")
var cell = row.getCell(columnIndex);