Java 打开Excel，往Excel中存入值，保存的excel格式分别是xls和xlsx

https://mirrors.cnnic.cn/apache/poi/xmlbeans/release/src/

package Excel;

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

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

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

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

import org.apache.poi.ss.usermodel.CellType;

import org.apache.poi.xssf.usermodel.XSSFCell;

import org.apache.poi.xssf.usermodel.XSSFRow;

import org.apache.poi.xssf.usermodel.XSSFSheet;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

public class WriteExcel {

    Date dt = new Date();

    SimpleDateFormat format = new SimpleDateFormat("YYYYMMddHHmmss");

    String time = format.format(dt);

    public void WriteExcelxls() {

        FileOutputStream out = null;

        try {

            out = new FileOutputStream(new File(".\\Log\\旧的EXCEL文件_"+time+".xls"));

            HSSFWorkbook workxls = new HSSFWorkbook();

            HSSFSheet sheet = workxls.createSheet(time);

            HSSFRow row = workxls.getSheet(time).createRow(0);

            for (short i = 0; i < 10; i++) {

                HSSFCell cell = row.createCell(i);

                cell.setCellValue("测试" + i);

            }

            sheet.createRow(1).createCell(1).setCellValue("1234567890");

            sheet.createRow(2).createCell(0).setCellValue(Calendar.getInstance());

            sheet.createRow(3).createCell(0).setCellValue("字符串");

            sheet.createRow(4).createCell(0).setCellValue(true);

            sheet.createRow(5).createCell(0).setCellType(CellType.ERROR);

            workxls.write(out);

            out.close();

            System.out.println("旧的EXCEL文件_.xls written successfully on disk.");

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

    public void WriteExcelxlsx() {

        File file = new File(".\\Log\\新的EXCEL文件_"+time+".xlsx");

        FileOutputStream out = null;

        try {

            out = new FileOutputStream(file);

            XSSFWorkbook workbook = new XSSFWorkbook();

            XSSFRow row = workbook.createSheet(time).createRow(0);

            XSSFSheet sheet = workbook.getSheet(time);

            for (short i = 0; i < 10; i++) {

                XSSFCell cell = row.createCell(i);

                cell.setCellValue("新的EXCEL文件" + i);

            }

            sheet.createRow(1).createCell(1).setCellValue("1234567890");

            sheet.createRow(2).createCell(0).setCellValue(Calendar.getInstance());

            sheet.createRow(3).createCell(0).setCellValue("字符串");

            sheet.createRow(4).createCell(0).setCellValue(true);

            sheet.createRow(5).createCell(0).setCellType(CellType.ERROR);

            workbook.write(out);

            out.close();

            System.out.println("新的EXCEL文件_.xlsx written successfully on disk.");

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

package Excel;

import org.testng.annotations.Test;

public class TestExcel {

    @Test(priority = 1)

    private void Testold()

    {

        WriteExcel aaa = new WriteExcel();

        aaa.WriteExcelxls();

    }

    @Test(priority = 2)

    public void Testnew()

    {

        WriteExcel aaa = new WriteExcel();

        aaa.WriteExcelxlsx();

    }

}

　　依赖：

<?xml version="1.0" encoding="UTF-8"?>

<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>Jasmine</groupId>

    <artifactId>Test</artifactId>

    <version>1.0-SNAPSHOT</version>

    <dependencies>

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi</artifactId>

            <version>4.0.0</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi-ooxml</artifactId>

            <version>4.0.0</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas -->

        <dependency>

            <groupId>org.apache.poi</groupId>

            <artifactId>poi-ooxml-schemas</artifactId>

            <version>4.0.0</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.testng/testng -->

        <dependency>

            <groupId>org.testng</groupId>

            <artifactId>testng</artifactId>

            <version>6.9.4</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.testng</groupId>

            <artifactId>testng</artifactId>

            <version>6.13.1</version>

        </dependency>

    </dependencies>

</project>

package Excel;

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

import org.apache.poi.ss.usermodel.CellType;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

public class WriteExcelMore {

    static Date dt = new Date();

    static SimpleDateFormat format = new SimpleDateFormat("YYYYMMddHHmmss");

    static String time = format.format(dt);

    public static void main(String args[]) {

        File file = new File(".\\Log\\新的EXCEL文件_" + time + ".xls");

        FileOutputStream out = null;

        try {

            out = new FileOutputStream(file);

            HSSFWorkbook workbook = new HSSFWorkbook(); //创建一个新的excel

            HSSFSheet sheet = workbook.createSheet(time);  //创建sheet页

            HSSFHeader header = sheet.getHeader();//创建header页

            header.setCenter("Title");

            HSSFRow[] row = new HSSFRow[3];

            row[0] = sheet.createRow(0);

            HSSFCell headerCell = row[0].createCell(5);

            headerCell.setCellValue(new HSSFRichTextString("标题"));

            //HSSFRow  row = workbook.getSheet(time).createRow(3);

            row[1] = sheet.createRow(1);

            for (short i = 0; i < 5; i++) {

                HSSFCell cell = row[1].createCell(i);

                cell.setCellValue("新的EXCEL文件" + i);

            }

            row[2] = sheet.createRow(2);

            String[] arr = new String[5];

            String[] arr2 = {"aa", "bb", "cc", "dd", "ee"};

            for (short i = 0; i < 5; i++) {

                HSSFCell cell = row[2].createCell(i);

                cell.setCellValue(arr2[i]);

            }

            sheet.createRow(5).createCell(1).setCellValue("1234567890");

            sheet.createRow(6).createCell(0).setCellValue(Calendar.getInstance());

            sheet.createRow(7).createCell(0).setCellValue("字符串");

            sheet.createRow(8).createCell(0).setCellValue(true);

            sheet.createRow(9).createCell(0).setCellType(CellType.ERROR);

            //设置footer

            sheet.setGridsPrinted(false);

            HSSFFooter footer = sheet.getFooter();

            footer.setRight("page " + HeaderFooter.page() + "of" + HeaderFooter.numPages());

            workbook.write(out);

            out.close();

            System.out.println(file + " written successfully on disk.");

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

遇到的错如下：

1. Exception in thread "main" java.lang.NoClassDefFoundError:

org/dom4j/DocumentExceptionCaused by: java.lang.ClassNotFoundException: org.dom4j.DocumentException

2. Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/compress/archivers/zip/ZipFile

3. Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections4/ListValuedMap

4. Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlObject

5. java.lang.NoClassDefFoundError: org/apache/xmlbeans/XmlException

<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>3.0.0</version>
</dependency>

6. java.lang.NoClassDefFoundError: org/apache/commons/collections4/ListValuedMap

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>4.1</version>
</dependency>

7. java.lang.NoClassDefFoundError: org/apache/commons/compress/archivers/zip/ZipFile

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-compress</artifactId>
<version>1.18</version>
</dependency>

<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.4</version>
</dependency>

8. java.lang.NoSuchMethodError: org.apache.xmlbeans.XmlOptions.setEntityExpansionLimit(I)Lorg/apache/xmlbeans/XmlOptions;

上述都是包的问题，后来新建了一个项目，换成maven管理依赖包，一次性解决了。

update 20181122

将上述代码拖到UI自动化项目中，发现执行报各种错误，已添加到上面。

都是jar包的问题，但是我已经将测试成功项目中的pom文件中的jar包都下载来了，却还是报各种错，解决了一个又遇到下一个。 (┬＿┬)

maven打包，因为网络问题，有时候有的包未能下载下来，就自己下载jar包引用，可是(┬＿┬)(┬＿┬)无力

苦心人天不负，三千越界可吞吴。哈哈哈哈，在尝试了千万遍之后，终于成功了，下面是所有新引入的jar包，百度网盘链接如下：

其中红框框是为了解决excel中xlsx格式而引入的一系列jar包。

链接：https://pan.baidu.com/s/1JhKENJU1PLlgOwyrnptilg
提取码：ip2u
链接若失效，请联系我

Java 打开Excel，往Excel中存入值，保存的excel格式分别是xls和xlsx

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