使用Java使用Apache poi从Excel中获取数据

我需要通过传递testing用例ID从Excel中获取testing数据。 如果我通过testing案例ID为“TC005” – 我需要获得像实验室名称，实验室地址，城市，州，Pincode，收集中心名称，CC地址，城市，州和Pincode的所有列值。

任何人都可以告诉我如何做到这一点？

我一直在努力，但我只能得到一个领域。

package com.utils; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.Date; import java.util.Iterator; import java.util.List; import java.util.Properties; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Row; public class ReadExcel { static int colTestcase; static int rowTestcase; static int rownumber ; static int colnumber; static InputStream input = null; static HSSFWorkbook workbook; static FileInputStream file ; static HSSFSheet sheet; static Properties prop = new Properties(); public static boolean openFile(String fileName) { try { file = new FileInputStream(fileName); workbook = new HSSFWorkbook(file); return true; } catch(Exception e) { e.printStackTrace(); return false; } } public static void main(String args[]) { long startTime = System.currentTimeMillis(); System.out.println("startTime: "+startTime); int rowvalue=readTestCase("TC03"); int columnvalue=readHeader("Service Title"); String value=getValuefromExcel(rowvalue,columnvalue); System.out.println("Row Value: "+rowvalue); System.out.println("Col Value: "+columnvalue); System.out.println("Text: "+value); long endTime = System.currentTimeMillis(); System.out.println("endTime"+endTime); System.out.println("Took "+(endTime - startTime) + " milliseconds"); } public static String getInputData(String Testcase,String header) { int rowvalue=readTestCase(Testcase); int columnvalue=readHeader(header); String value = getValuefromExcel(rowvalue, columnvalue); return value; } public static String getValuefromExcel(int row, int col) { String value =null; String field="Wrongvalue"; if(!(row==-1||col==-1)) { try { System.out.println("Entered"); input = new FileInputStream("src\\com\\config\\config.properties"); // load a properties file prop.load(input); openFile(prop.getProperty("excelTestData_FilePath")); //Get first sheet from the workbook sheet = workbook.getSheet(prop.getProperty("excelTestData_Sheet")); HSSFCell cell = null; //Update the value of cell cell = sheet.getRow(row).getCell(col); value = cell.toString(); file.close(); } catch(Exception e){ e.printStackTrace(); } System.out.println("value Done"); return value; } else { System.out.println("Given data was wrong"); } return field; } public static int readTestCase(String Testcase) { try { FileInputStream file = new FileInputStream(new File("C:\\Thyagu\\Workspace\\PMModule\\test-input\\PM_ModuleTestData.xls")); //Get the workbook instance for XLS file HSSFWorkbook workbook = new HSSFWorkbook(file); //Get first sheet from the workbook HSSFSheet sheet = workbook.getSheet("Data"); int rowNum = sheet.getLastRowNum()+1; int colNum = sheet.getRow(0).getLastCellNum(); for (int i=1; i<rowNum; i++){ HSSFRow row = sheet.getRow(i); int j=0; HSSFCell cell = row.getCell(j); String value = cell.toString(); if(value.equalsIgnoreCase(Testcase)) { rowTestcase=row.getRowNum(); colTestcase=cell.getCellNum(); return rowTestcase; } } file.close(); } catch(Exception e){ e.printStackTrace(); } System.out.println("rownumber Done: " +rowTestcase); return -1; } public static int readHeader(String header) { try { FileInputStream file = new FileInputStream(new File("C:\\Thyagu\\Workspace\\PMModule\\test-input\\PM_ModuleTestData.xls")); //Get the workbook instance for XLS file HSSFWorkbook workbook = new HSSFWorkbook(file); //Get first sheet from the workbook HSSFSheet sheet = workbook.getSheet("Data"); int rowNum = sheet.getLastRowNum()+1; int colNum = sheet.getRow(0).getLastCellNum(); int i=0; HSSFRow row = sheet.getRow(i); rownumber =row.getRowNum(); for (int j=0; j<colNum; j++){ HSSFCell cell = row.getCell(j); String value = cell.toString(); if(value.equalsIgnoreCase(header)) { rownumber=row.getRowNum(); colnumber=cell.getCellNum(); return colnumber; } } file.close(); } catch(Exception e){ e.printStackTrace(); } System.out.println("colnumber Done"); return -1; } } 

提前致谢

Answer 1

Thyagu：我提出了一个解决scheme…首先，你应该创build一个方法，find具有所需的第一个单元格值的行（在你的情况下，我想所需的TestCaseID），并返回一个RowObject的相同。

 public static HSSFRow findRow(String stringToFind){ //`hswb` is HSSFWorkbook HSSFSheet sheet = hswb.getSheetAt(0); Iterator <Row> rowItr = sheet.iterator(); while(rowItr.hasNext()){ HSSFRow row = (HSSFRow) rowItr.next(); if(row.getCell(0).toString().equalsIgnoreCase(stringToFind)){ return row; } } // If no such row found need to handle NullPointerException for that return null; } 

一旦你有正确的RowObject你可以从中提取任何非空的单元格值，或者可以做任何你想要的，就像在这种情况下，我刚才打印的一样。

  public static void getAllColumnFromRow(HSSFRow RowObject){ Iterator<Cell> itr = RowObject.iterator(); HSSFRow headerRow = RowObject.getSheet().getRow(0); String cellValue = ""; String information = ""; int headerCellCount = 0; //to avoid first column itr.next(); while(itr.hasNext()){ Cell cell = itr.next(); Cell headerValue = headerRow.getCell(headerCellCount++); switch(cell.getCellType()) { case HSSFCell.CELL_TYPE_BOOLEAN: cellValue = cell.getBooleanCellValue() +""; information = information + " " +headerValue+" - "+cellValue+ "; "; break; case HSSFCell.CELL_TYPE_NUMERIC: cellValue = cell.getNumericCellValue() + ""; information = information + " " +headerValue+" - "+cellValue+ "; "; break; case HSSFCell.CELL_TYPE_STRING: cellValue = cell.getStringCellValue(); information = information + " " +headerValue+" - "+cellValue+ "; "; break; case HSSFCell.CELL_TYPE_BLANK: break; } } System.out.println(information); } 

如果有可能在任何行的最后一个单元格值中获得一个空单元格，则需要使用MissingCellPolicy 。