java導入導出Excel poi跟jxl

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>cn.sigangjun</groupId>
	<artifactId>excel</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>excel</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>
		<dependency>
			<groupId>net.sourceforge.jexcelapi</groupId>
			<artifactId>jxl</artifactId>
			<version>2.6.12</version>
		</dependency>
		<dependency>
			<groupId>org.apache.poi</groupId>
			<artifactId>poi</artifactId>
			<version>3.8</version>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
	</dependencies>
</project>

Record.java

package cn.sigangjun.excel;

/**
 * @author sigangjun
 * @date 2015-7-17
 */
public class Record {

    private Long id;
    private String title;
    private Double price;
    private Integer quantity;
    private String desc;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public Double getPrice() {
        return price;
    }

    public void setPrice(Double price) {
        this.price = price;
    }

    public Integer getQuantity() {
        return quantity;
    }

    public void setQuantity(Integer quantity) {
        this.quantity = quantity;
    }

    public String getDesc() {
        return desc;
    }

    public void setDesc(String desc) {
        this.desc = desc;
    }

}

TestUtil.java

package cn.sigangjun.excel;

import java.util.ArrayList;
import java.util.List;

/** 
 * @author sigangjun 
 * @date 2015-7-17
 */
public class TestUtil {

    private static List<Record> records = new ArrayList<Record>();
    
    public static List<Record> getRecords(int num){
        records.clear();
        for(int i = 0; i < num; i++){
            Record record = new Record();
            
            record.setId((long)i);
            record.setPrice(i*1.1);
            record.setTitle("商品" + i);
            record.setQuantity(i);
            record.setDesc("描述" + i);
            
            records.add(record);
        }
        return records;
    }
}

JXLTestMain.java

package cn.sigangjun.excel.jxl;

import java.io.File;
import java.io.IOException;
import java.util.List;

import jxl.Cell;
import jxl.CellType;
import jxl.NumberCell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.Number;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

import cn.sigangjun.excel.Record;
import cn.sigangjun.excel.TestUtil;

/** 
 * @author sigangjun 
 * @date 2015-7-17
 */
public class JXLTestMain {
    
    private final static String filename = "jxltest.xls";
    private final static String[] headers = {"ID", "標題", "價格", "數量", "描述"};
    
    private final static int rows = 65535;

    public static void main(String[] args) {
        writeExcel();
        readExcel();
    }
    
    public static void writeExcel() {
        try {
            WritableWorkbook workbook = Workbook.createWorkbook(new File(filename));
            
            WritableSheet  sheet = workbook.createSheet("jxl測試", 0);
            
            for (int i = 0; i < headers.length; i++) {
                Label label = new Label(i, 0 , headers[i]);
                sheet.addCell(label);
            }
            
            List<Record> records = TestUtil.getRecords(rows);
            long s1 = System.nanoTime();
            int c = 1;
            for (Record record : records) {
                sheet.addCell(new Number(0, c, record.getId()));
                sheet.addCell(new Label(1, c, record.getTitle()));
                sheet.addCell(new Number(2, c, record.getPrice()));
                sheet.addCell(new Number(3, c, record.getQuantity()));
                sheet.addCell(new Label(4, c, record.getDesc()));
                c++;
            }
            
            workbook.write();
            workbook.close();
            long s2 = System.nanoTime();
            System.out.println("jxl write " + rows + " rows to excel:" + (s2-s1));
        } catch (IOException e) {
            e.printStackTrace();
        } catch (RowsExceededException e) {
            e.printStackTrace();
        } catch (WriteException e) {
            e.printStackTrace();
        }

    }

    public static void readExcel() {
        try {
            long s1 = System.nanoTime();
            Workbook workbook = Workbook.getWorkbook(new File(filename));
            Sheet sheet = workbook.getSheet(0);
            System.out.println(sheet.getName());
            for(int i = 0; i < sheet.getRows(); i++){
                Cell[] cells = sheet.getRow(i);
                for (Cell cell : cells) {
                    if(cell.getType() == CellType.NUMBER){
                        System.out.print(((NumberCell)cell).getValue()+"  ");
                    } else if(cell.getType() == CellType.LABEL){
                       System.out.print(cell.getContents()+"  ");
                    }
                }
                System.out.println();
            }
            workbook.close();
            long s2 = System.nanoTime();
            System.out.println("jxl read " + rows + " rows from excel:" + (s2-s1));
        } catch (BiffException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}

POITestMain.java

package cn.sigangjun.excel.poi;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;

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 cn.sigangjun.excel.Record;
import cn.sigangjun.excel.TestUtil;

/**
 * @author sigangjun
 * @date 2015-7-17
 */
public class POITestMain {
    
    private final static String filename = "poitest.xls";
    private final static String[] headers = {"ID", "標題", "價格", "數量", "描述"};
    
    private final static int rows = 65535;

    public static void main(String[] args) {
        writeExcel();
        readExcel();
    }

    public static void writeExcel() {
        Workbook wb = new HSSFWorkbook();
        try {
            FileOutputStream fileOut = new FileOutputStream(filename);
            
            Sheet sheet = wb.createSheet("poi測試");
            Row row = sheet.createRow(0);
            for (int i = 0; i < headers.length; i++) {
                row.createCell(i).setCellValue(headers[i]);
            }
            
            List<Record> records = TestUtil.getRecords(rows);
            long s1 = System.nanoTime();
            int r = 1;
            for (Record record : records) {
                row = sheet.createRow(r);
                row.createCell(0).setCellValue(record.getId());
                row.createCell(1).setCellValue(record.getTitle());
                row.createCell(2).setCellValue(record.getPrice());
                row.createCell(3).setCellValue(record.getQuantity());
                row.createCell(4).setCellValue(record.getDesc());
                r++;
            }
            
            wb.write(fileOut);
            fileOut.close();
            long s2 = System.nanoTime();
            System.out.println("poi write " + rows + " rows to excel:" + (s2-s1));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void readExcel() {
        try {
            long s1 = System.nanoTime();
            InputStream inp = new FileInputStream(filename);
            Workbook wb = new HSSFWorkbook(inp);
            Sheet sheet = wb.getSheetAt(0);
            System.out.println(sheet.getSheetName());
            
            for(Row row : sheet){
                for(Cell cell : row){
                    switch (cell.getCellType()) {
                    case Cell.CELL_TYPE_NUMERIC:
                        System.out.print(cell.getNumericCellValue() + "  ");
                        break;
                    case Cell.CELL_TYPE_STRING:
                       System.out.print(cell.getStringCellValue() + "  ");
                        break;

                    default:
                        break;
                    }
                }
                System.out.println();
            }
            inp.close();
            long s2 = System.nanoTime();
            System.out.println("poi read " + rows + " rows from excel:" + (s2-s1));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }


    }

}