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
<!-- https://mvnrepository.com/artifact/org.apache.xmlbeans/xmlbeans -->
<dependency>
<groupId>org.apache.xmlbeans</groupId>
<artifactId>xmlbeans</artifactId>
<version>3.0.0</version>
</dependency>
6. java.lang.NoClassDefFoundError: org/apache/commons/collections4/ListValuedMap
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-collections4 -->
<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
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-compress -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-compress</artifactId>
<version>1.18</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<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
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