用java自定义jar包读取excel数据支持excel2007和excel2003
在http://download.csdn.net/detail/u010792467/8079355下载所需要的包
如果需要excel2003和excel2007文件可以去
http://download.csdn.net/detail/u010792467/8072009下载
在http://download.csdn.net/detail/u010792467/8079345下载工程
自定义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测试.xlsx";
String filePath="D:\\excel\\EXCEL2003测试.xls";
ImportExeclTool impexcel = new ImportExeclTool();
// 全部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("运行完成");
}
}
</span>
自定义jar包源码
<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
转载请注明链接：http://blog.csdn.net/awenluck/article/details/40442207
时间： 2024-10-25 03:00:43