Intellj使用问题和技巧（此文是转载）

ytl — Sat, 14 Nov 2009 16:18:00 GMT

摘要: 阅读全文

ytl 2009-11-15 00:18 发表评论

Java处理Excel数据(1)

ytl — Sun, 12 Apr 2009 05:57:00 GMT

Java处理Excel数据有很多方式,如Apache的POI或JXL等.

我首先给出一个Excele数据的读入的方式（使用的是jxl.jar包）

package com.ccniit.readexcel;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;

public class ExcelHander {

    public static String[] getColName(String desc) {
        InputStream is = null;
        String[] colNames = null;
        try {
            is = new FileInputStream(new File(desc));
            Workbook wb = Workbook.getWorkbook(is);
            Sheet sheet = wb.getSheet(0);
            int cols = sheet.getColumns();
            colNames = new String[cols];
            for (int i = 0; i < cols; i++) {
                colNames[i] = sheet.getCell(i, 0).getContents();
                // System.out.println("列名： " + colNames[i]);
            }
            is.close();
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (BiffException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return colNames;

    }

    public List<Map<String, Object>> readExcel(String desc) {
        List<Map<String, Object>> datas = null;
        try {
            InputStream is = new FileInputStream(new File(desc));
            Workbook wb = Workbook.getWorkbook(is);
            if(wb == null){
                return null;
            }
            Sheet sheet = wb.getSheet(0);
            int cols = sheet.getColumns();
            int rows = sheet.getRows();
            datas = new ArrayList<Map<String, Object>>();
            for (int i = 1; i < rows; i++) {
                Map<String, Object> data = new HashMap<String, Object>();
                for (int j = 0; j < cols; j++) {
                    String key = sheet.getCell(j, 0).getContents();
                    // System.out.println("key:" + key);
                    Object value = (Object) sheet.getCell(j, i).getContents();
                    // System.out.println("value:" + value.toString());
                    data.put(key, value);
                }
                datas.add(data);
            }
            is.close();
            wb.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (BiffException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return datas;
    }

}

ytl 2009-04-12 13:57 发表评论

BlogJava-Ytl's Java Blog-随笔分类-Others

Intellj使用问题和技巧（此文是转载）

Java处理Excel数据(1)