POI对ecxl文件内容进行修改

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;

import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;

public class ChekFile {
public static void main(String[] args) {
File f = new File("e:/liu");
print(f, 0);

}

/**
* 遍历文件夹
*
* @param f
* @param len
*/
@SuppressWarnings("unlikely-arg-type")
public static void print(File f, int len) {
File[] file = f.listFiles();

for (int i = 0; i < file.length; i++) {
if (file[i].isDirectory()) { //判断是否文件夹
print(file[i], len + 1);
}

// 为防止输出文件覆盖源文件，所以更改输出盘路径 也可自行设置其他路径
//            File outPath = new File(file[i].getParent().replace("F:", "E:"));
File readfile = new File(file[i].getAbsolutePath());

if (!readfile.isDirectory()) {
String filename = readfile.getName(); // 读到的文件名
String absolutepath = readfile.getAbsolutePath(); // 文件的绝对路径
//一些特殊字符分割要加【】
String[] fileType = absolutepath.split("[.]");
if(fileType[1].equals("xlsx")||fileType[1].equals("xls")) {

writeExcel3(absolutepath);
System.out.println(absolutepath);
}

}
}
}

//修改excel表格，path为excel修改前路径（D:\\test.xlsx）
public static void writeExcel3(String path) {
try {
//传入的文件
FileInputStream fileInput = new FileInputStream(path);
//poi包下的类读取excel文件

// 创建一个webbook，对应一个Excel文件
@SuppressWarnings("resource")
Workbook workbook = null;
try {
workbook = WorkbookFactory.create(fileInput);
} catch (EncryptedDocumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (InvalidFormatException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//对应Excel文件中的sheet，0代表第一个
Sheet sh = workbook.getSheetAt(0);
//修改excle表的第5行，从第三列开始的数据

//获取总行数
int rowNum = sh.getLastRowNum();
//获取总行数
int coloumNum=sh.getRow(0).getPhysicalNumberOfCells();
for(int i = 0;i<=rowNum;i++) {
for(int j = 0;j<=coloumNum;j++) {
try {
//	    			  System.out.println(sh.getRow(i).getCell((short)j).getStringCellValue()+i+""+j);
////		    		  System.out.println("ddd");
//		    		  if(sh.getRow(i).getCell((short)j).getStringCellValue().equals("福瑞博得")) {
//		    			  sh.getRow(i).getCell((short) j).setCellValue("信必忧");
//		    			  System.out.println("d");
//		    		  }
//获取单元格内容的类型
switch(sh.getRow(i).getCell((short)j).getCellTypeEnum()) {
case STRING://字符串
//获取单元格的内容
if(sh.getRow(i).getCell((short)j).getStringCellValue().contains("福瑞博得")) {
//设置单元格的内容
sh.getRow(i).getCell((short) j).setCellValue(sh.getRow(i).getCell((short)j).getStringCellValue().replaceAll("福瑞博得", "信必忧"));
}
if(sh.getRow(i).getCell((short)j).getStringCellValue().contains("福瑞博得")) {

sh.getRow(i).getCell((short) j).setCellValue(sh.getRow(i).getCell((short)j).getStringCellValue().replaceAll("福瑞博得", "symbio"));
}
break;
case NUMERIC:
break;
case BOOLEAN:
break;
case FORMULA:
break;
case BLANK:
break;
case ERROR:
break;
default:
break;

}
} catch (Exception e) {
//					System.out.println(sh.getRow(i).getCell((short)j).getStringCellValue()+i+""+j+"为空");

continue;
}

}
}

FileOutputStream os = new FileOutputStream(path);
// FileOutputStream os = new FileOutputStream("D:\\test.xlsx");//此路径也可写修改前的路径，相当于在原来excel文档上修改
os.flush();
//将Excel写出
workbook.write(os);
//关闭流
fileInput.close();
os.close();
} catch (IOException e) {
e.printStackTrace();
}
}

pom.xml文件

<dependency>
 <groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.17</version>
</dependency>
   
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.17</version>
</dependency>
<dependency>
 <groupId>org.apache.poi</groupId>
 <artifactId>poi-ooxml-schemas</artifactId>
 <version>3.17</version>
</dependency>
   
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>openxml4j</artifactId>
    <version>1.0-beta</version>
</dependency>
 
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-scratchpad</artifactId>
    <version>3.17</version>
</dependency>