使用java它们的定义jar套餐读excel数据支持excel2007和excel2003
在http://download.csdn.net/detail/u010792467/8079355下载所须要的包
假设须要excel2003和excel2007文件能够去
http://download.csdn.net/detail/u010792467/8072009下载
在http://download.csdn.net/detail/u010792467/8079345下载project
自己定义jar包运用举例
<span style="font-size:18px;">package com.readExcel;
import java.util.List;
import Excel.ImportExeclTool;
public class exceltest {
public static void main(String[] args) {
// String filePath = "D:\\excel\\EXCEL2007測试.xlsx";
String filePath="D:\\excel\\EXCEL2003測试.xls";
ImportExeclTool impexcel = new ImportExeclTool();
// 所有sheet页内容
// List<List<String>> list= impexcel.readExcel(filePath);
// filePath excel文件路径
// 1 代表第一个sheet页 2 代表第一个sheet页...
List<List<String>> list = impexcel.readExcel(filePath, 1);
if (list != null) {
for (int i = 0; i < list.size(); i++) {
System.out.print("第" + (i) + "行");
List<String> listCell = list.get(i);
for (String s : listCell) {
System.out.print(" " + s);
}
System.out.println();
}
}
System.out.println("执行完毕");
}
}
</span>自己定义jar包源代码
<span style="font-size:18px;">package Excel; import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List; import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook; public class ImportExeclTool {
private String errorInfo;
private static int readSheet = 0;
private static boolean readSheetNum = false;
private static boolean isGtSheetNum = false; public boolean validateExcel(String filePath) { if (filePath == null
|| !(is2003Excel(filePath) || is2007Excel(filePath))) { errorInfo = "文件名称不是excel格式"; return false;
} File file = new File(filePath); if (file == null || !file.exists()) { errorInfo = "excel文件不存在"; return false; } return true; } public List<List<String>> readExcel(String filePath) { List<List<String>> dataList = new ArrayList<List<String>>(); InputStream is = null; try { if (!validateExcel(filePath)) { System.out.println();
List<String> list3 = new ArrayList<String>();
list3.add(errorInfo);
dataList.add(list3);
return dataList; } boolean is2003Excel = true; if (is2007Excel(filePath)) { is2003Excel = false;
} File file = new File(filePath); is = new FileInputStream(file); dataList = readFile(is, is2003Excel); is.close(); } catch (Exception ex) { ex.printStackTrace(); } finally { if (is != null) { try { is.close(); } catch (IOException e) { is = null; e.printStackTrace(); } } } return dataList; } public List<List<String>> readFile(InputStream inputStream,
boolean is2003Excel) { List<List<String>> dataLists = null; try { Workbook wb = null; if (is2003Excel) {
wb = new HSSFWorkbook(inputStream);
} else {
wb = new XSSFWorkbook(inputStream);
}
int sheetNum = sheetCirculation(wb);
if (readSheet >= sheetNum) {
List<String> list2 = new ArrayList<String>();
list2.add("输入页数大于实际sheet页数!!!");
List list4 = new ArrayList();
list4.add(list2);
this.isGtSheetNum = true;
return list4;
}
List<List<String>> dataList = new ArrayList<List<String>>();
if (readSheetNum) {
dataLists = read(dataList, wb, readSheet);
} else {
for (int i = 0; i < sheetNum; i++) {
dataLists = read(dataList, wb, i);
}
} } catch (IOException e) { e.printStackTrace(); } return dataLists; } private List<List<String>> read(List<List<String>> dataList, Workbook wb,
int sheets) {
int totalRows = 0;
int totalCells = 0; Sheet sheet = wb.getSheetAt(sheets); totalRows = sheet.getPhysicalNumberOfRows(); if (totalRows >= 1 && sheet.getRow(0) != null) { totalCells = sheet.getRow(0).getPhysicalNumberOfCells(); }
for (int r = 0; r < totalRows; r++) { Row row = sheet.getRow(r); if (row == null) { continue; } List<String> rowDataList = new ArrayList<String>(); for (int c = 0; c < totalCells; c++) { Cell cell = row.getCell(c); String cellValue = ""; if (null != cell) {
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_NUMERIC: // 数字
cellValue = cell.getNumericCellValue() + "";
break; case HSSFCell.CELL_TYPE_STRING: // 字符串
cellValue = cell.getStringCellValue();
break; case HSSFCell.CELL_TYPE_BOOLEAN: // Boolean
cellValue = cell.getBooleanCellValue() + "";
break; case HSSFCell.CELL_TYPE_FORMULA: // 公式
cellValue = cell.getCellFormula() + "";
break; case HSSFCell.CELL_TYPE_BLANK: // 空值
cellValue = "";
break; case HSSFCell.CELL_TYPE_ERROR: // 故障
cellValue = "非法字符";
break; default:
cellValue = "未知类型";
break;
}
} rowDataList.add(cellValue); }
dataList.add(rowDataList); }
return dataList; } private int sheetCirculation(Workbook wb) {
int sheetCount = -1;
sheetCount = wb.getNumberOfSheets();
return sheetCount;
} public static boolean is2003Excel(String filePath) { return filePath.matches("^.+\\.(? i)(xls)$"); } public static boolean is2007Excel(String filePath) { return filePath.matches("^.+\\.(?i)(xlsx)$"); } public ImportExeclTool() {
} public String getErrorInfo() {
return errorInfo;
} public List<List<String>> readExcel(String filePath, int num) {
this.readSheet = num - 1;
this.readSheetNum = true;
if (num <= 0) {
List list0 = new ArrayList();
List list5 = new ArrayList();
list0.add("excel必须大于0页!!!");
list5.add(list0);
return list5;
}
List<List<String>> list = readExcel(filePath);
if (!this.isGtSheetNum && list.size() == 0) {
List<String> list1 = new ArrayList<String>();
list1.add("sheet页中数据为空!!!");
list.add(list1);
}
return list;
}
}
</span>
作者：儱剑阿攵
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