好记性不如烂笔头7-JAVA生成EXCEL文件

标签：poi   excel   java   java源代码   

使用poi生成EXCEL

在很多的场合，需要使用EXCEL文件。一般是表格方面的应用，简单的示例。

需要引入第三方jar包：poi_3.6.jar

package com.daily;

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStream;

import java.util.ArrayList;

import java.util.List;

importorg.apache.poi.hssf.usermodel.HSSFCell;

importorg.apache.poi.hssf.usermodel.HSSFRichTextString;

importorg.apache.poi.hssf.usermodel.HSSFRow;

import org.apache.poi.hssf.usermodel.HSSFSheet;

importorg.apache.poi.hssf.usermodel.HSSFWorkbook;

/**

 *生成EXCEL

 *@author 范芳铭

 */

public class EasyExcel {

   public void createExcelFile(String outFilename,List<Content> xls)throws Exception { 

       // 获取总列数 

       int CountColumnNum = xls.size(); 

       // 创建Excel文档 

       HSSFWorkbook hwb = new HSSFWorkbook(); 

       Content content = null; 

       // sheet 对应一个工作页 

       HSSFSheet sheet = hwb.createSheet("ffm"); 

       HSSFRow firstrow = sheet.createRow(0); // 下标为0的行开始 

       HSSFCell[] firstcell = new HSSFCell[CountColumnNum]; 

       String[] names = new String[CountColumnNum]; 

       names[0] = "编码"; 

       names[1] = "姓名";  

       for (int j = 0; j < CountColumnNum; j++) { 

            firstcell[j] =firstrow.createCell(j); 

            firstcell[j].setCellValue(newHSSFRichTextString(names[j])); 

       } 

       for (int i = 0; i < xls.size(); i++) { 

            // 创建一行 

            HSSFRow row = sheet.createRow(i +1); 

            // 得到要插入的每一条记录 

            content = xls.get(i); 

            for (int colu = 0; colu <= 4;colu++) { 

                // 在一行内循环 

                HSSFCell one =row.createCell(0); 

                one.setCellValue(content.getCode()); 

                HSSFCell two =row.createCell(1); 

               two.setCellValue(content.getName()); 

            } 

       } 

       // 创建文件输出流，准备输出电子表格 

       OutputStream out = new FileOutputStream(new File(outFilename)); 

       hwb.write(out); 

       out.close(); 

   } 

    publicstatic void main(String[] args) throws Exception{

        //初始化数据，内部类的构造有点特殊

        List<Content>contents = new ArrayList<Content>();

        contents.add(newEasyExcel().new Content("100","name100"));

        contents.add(newEasyExcel().new Content("101","name101"));

        contents.add(newEasyExcel().new Content("102","name102"));

        longstart = System.currentTimeMillis();

        EasyExcelexcel = new EasyExcel();

        excel.createExcelFile("d:/ffm83/easyExcel.xls",contents);

        longend = System.currentTimeMillis();

        System.out.println("生成excel文件耗时："+ (end - start) + "(毫秒)"); 

    }

    //一个简单的保存简单信息的内部类

    publicclass Content { 

        privateString code;

        private String name;

        public Content(String code,String name){

            this.code= code;

            this.name= name;

        }

        publicString getCode() {

            returncode;

        }

        publicvoid setCode(String code) {

            this.code= code;

        }

        publicString getName() {

            returnname;

        }

        publicvoid setName(String name) {

            this.name= name;

        }   

    }

}

好记性不如烂笔头7-JAVA生成EXCEL文件

标签：poi   excel   java   java源代码   

原文地址：http://blog.csdn.net/ffm83/article/details/43273501