forked from integrated_whb/integrated_whb
116 lines
2.9 KiB
Java
116 lines
2.9 KiB
Java
package com.zcloud.util;
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import com.zcloud.entity.PageData;
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import org.apache.poi.hssf.usermodel.HSSFCell;
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import org.apache.poi.hssf.usermodel.HSSFRow;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import java.io.File;
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import java.io.FileInputStream;
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import java.math.BigDecimal;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 说明：从EXCEL导入到系统
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*/
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public class ObjectExcelRead {
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/**
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* @param filepath //文件路径
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* @param filename //文件名
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* @param startrow //开始行号
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* @param startcol //开始列号
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* @param sheetnum //sheet
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* @return list
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*/
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public static List<Object> readExcel(File target, int startrow, int startcol, int sheetnum) {
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List<Object> varList = new ArrayList<Object>();
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try {
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FileInputStream fi = new FileInputStream(target);
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HSSFWorkbook wb = new HSSFWorkbook(fi);
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HSSFSheet sheet = wb.getSheetAt(sheetnum); //sheet 从0开始
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int rowNum = getExcelRealRow(sheet) ; //取得最后一行的行号
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for (int i = startrow; i <= rowNum; i++) { //行循环开始
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PageData varpd = new PageData();
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HSSFRow row = sheet.getRow(i); //行
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int cellNum = row.getLastCellNum(); //每行的最后一个单元格位置
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for (int j = startcol; j < cellNum; j++) { //列循环开始
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HSSFCell cell = row.getCell(Short.parseShort(j + ""));
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String cellValue = null;
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if (null != cell) {
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switch (cell.getCellType().getCode()) { // 判断excel单元格内容的格式，并对其进行转换，以便插入数据库
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case 0:
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BigDecimal bigDecimal = new BigDecimal(cell.getNumericCellValue());
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cellValue = bigDecimal.toPlainString();
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// cellValue = String.valueOf((int) cell.getNumericCellValue());
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break;
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case 1:
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cellValue = cell.getStringCellValue();
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break;
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case 2:
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cellValue = cell.getNumericCellValue() + "";
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// cellValue = String.valueOf(cell.getDateCellValue());
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break;
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case 3:
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cellValue = "";
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break;
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case 4:
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cellValue = String.valueOf(cell.getBooleanCellValue());
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break;
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case 5:
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cellValue = String.valueOf(cell.getErrorCellValue());
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break;
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}
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} else {
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cellValue = "";
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}
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varpd.put("var"+j, cellValue);
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}
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varList.add(varpd);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return varList;
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}
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/**
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* 获取excel表格的真实行数
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* @param sheet excel文件的工作簿的名称
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* @return
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*/
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public static int getExcelRealRow(HSSFSheet sheet) {
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boolean flag = false;
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int rowCount = 0;
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for (int i = 1; i <= sheet.getLastRowNum(); i++) {
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HSSFRow row = sheet.getRow(i); //行
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if(row == null){
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break;
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}
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HSSFCell cell = row.getCell(0);
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if(null != cell){
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rowCount ++;
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continue;
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}else{
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break;
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}
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}
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return rowCount;
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}
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}
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