java读取excel文件并复制(copy)文件到指定目录示例

时间:2021-05-19

复制代码 代码如下:
mport java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.log4j.Logger;
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;

public class DeployByExcel {
private static Logger logger= Logger.getLogger(DeployByExcel.class);

static final int BUFFER = 8192;


//Excel
private HSSFWorkbook workbook ;

/**
* 读取Excel文件并将文件列表放到list中
* @param sheetNumber
* @param dir excel文件所在目录
* @return
* @throws FileNotFoundException
* @throws IOException
*/
public List<String> getDatasInSheet(int sheetNumber,File dir) throws FileNotFoundException, IOException{

File[] files = dir.listFiles();
List<String> result = new ArrayList<String>();
for(File f : files)
{
if(!f.getName().toLowerCase().endsWith(".xls"))
{
continue;
}
workbook = new HSSFWorkbook(new FileInputStream(f));

//获得指定的表
HSSFSheet sheet = workbook.getSheetAt(sheetNumber);
//获得数据总行数
int rowCount = sheet.getLastRowNum();
logger.info("found excel rows count: " + rowCount);
if (rowCount < 1) {
return result;
}
//逐行读取数据
for (int rowIndex = 4; rowIndex <= rowCount; rowIndex++) {
//获得行对象
HSSFRow row = sheet.getRow(rowIndex);
if (row != null) {
List<Object> rowData = new ArrayList<Object>();
//获得本行中单元格的个数
int columnCount = row.getLastCellNum();
//获得本行中各单元格中的数据
HSSFCell cell = row.getCell(1);
//获得指定单元格中数据
String str = (String)this.getCellString(cell);
if (str!=null && str.length()>1)
result.add(str);
}
}
}
return result;
}


private void copy(String sourcePath,String destPath,List<String> fileList,String webContent) throws IOException{
int num =1 ;
for (String str : fileList){
str = str.replace(".java", ".class");
if (str.indexOf("/")!=-1){

if (str.indexOf("src")==0){
str = str.replace("src", "WEB-INF/classes");
}else if (str.toUpperCase().indexOf(webContent.toUpperCase())==0){
str = str.replace(webContent+"/", "");
}


boolean f = copyFile(str,sourcePath,destPath);
if(f)
{
logger.info("The file is:" + num);
num ++;

String fileName1 = str;
int n = 1;
while(fileName1.endsWith(".class"))
{
str = fileName1.replace(".class", "$" + n +".class");
if(!copyFile(str,sourcePath,destPath))
{
break;
}
n ++;
}
}
}
}
}
/**
* copy str to destPath
*
* @param str
* @param sourcePath
* @param destPath
* @return boolean isFile return true;else return false;
* @throws IOException
*/
private boolean copyFile(String str,String sourcePath,String destPath) throws IOException
{
boolean f = false;
String destFilePath = destPath+str;
String sourceFilePath = sourcePath+str;
File newDir = new File(destFilePath.substring(0,destFilePath.lastIndexOf('/')));
File sourceFile = new File(sourceFilePath.trim());
if(!sourceFile.exists())
{
return f;
}
logger.info("dest:"+destFilePath+" "+"source:"+sourceFilePath);
File destFile = new File(destFilePath.trim());
if (!newDir.exists()){
newDir.mkdirs();
}
if(!sourceFile.isDirectory())
{
InputStream in=new FileInputStream(sourceFile);
FileOutputStream out=new FileOutputStream(destFile);
byte[] buffer=new byte[1024];
int ins;
while((ins=in.read(buffer))!=-1){
out.write(buffer,0,ins);
}
in.close();
out.flush();
out.close();
f = true;
}
return f;

}
/**
* 获得单元格中的内容
* @param cell
* @return
*/
protected Object getCellString(HSSFCell cell){
Object result = null;
if (cell != null) {
int cellType = cell.getCellType();
switch(cellType){
case HSSFCell.CELL_TYPE_STRING :
result = cell.getRichStringCellValue().getString();
break;
case HSSFCell.CELL_TYPE_NUMERIC:
result=cell.getNumericCellValue();
break;
case HSSFCell.CELL_TYPE_FORMULA:
result = cell.getNumericCellValue();
break;
case HSSFCell.CELL_TYPE_ERROR:
result=null;
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
result=cell.getBooleanCellValue();
break;
case HSSFCell.CELL_TYPE_BLANK:
result=null;
break;
}
}
return result;
}

/**
*
* @param args args[0]:Excel文件所在目录;args[1]:源目录(编译后的文件目录);args[2]:发布目录
* @throws Exception
*/
public static void main(String[] args) throws Exception {

if(args == null || args.length <3 )
{
logger.info("file is not find;");

logger.fatal("java cn.id5.deploy.DeployByExcel $0 $1 $2 $3 \n$0:Excel文件所在目录;$1:源目录(编译后的文件目录);$2:发布目录;$3:jsp所在目录(默认为webContent,可空)\nexiting.");
System.exit(0);
}

File file = new File(args[0]);
DeployByExcel deploy = new DeployByExcel();
List<String> fileList = deploy.getDatasInSheet(0,file);
String classPath = args[1];
String destPath = args[2];
String webContent = (args.length> 3 && args[3] != null && args[3].length() > 1) ? args[3] : "WebContent";
deploy.copy(classPath, destPath, fileList, webContent);
///tmp/gboss /media/terry/doc/Project_ID5/gboss/WebContent/

}

}

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