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今天在做poi修改样式时,报了以下错误:
Exception in thread "main" org.apache.poi.POIXMLException: java.io.IOException: Can‘t obtain the input stream from /docProps/app.xml at org.apache.poi.POIXMLDocument.getProperties(POIXMLDocument.java:148) at org.apache.poi.POIXMLDocument.write(POIXMLDocument.java:199) at com.supcon.ChangeXlsxCell.main(ChangeXlsxCell.java:29) Caused by: java.io.IOException: Can‘t obtain the input stream from /docProps/app.xml at org.apache.poi.openxml4j.opc.PackagePart.getInputStream(PackagePart.java:502) at org.apache.poi.POIXMLProperties.<init>(POIXMLProperties.java:75) at org.apache.poi.POIXMLDocument.getProperties(POIXMLDocument.java:146) ... 2 more
网上查了相关文档,没找到相关资料,也没有给出解决资料,绝望之余,网上查找了poi修改数据的代码,运行了下竟然可以通过,以下为代码：
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
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 ChangeCell {
@SuppressWarnings("deprecation")
public static void main(String[] args) {
String fileToBeRead = "C:\\exp.xls"; // excel位置
int coloum = 1; // 比如你要获取第1列
try {
HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(
fileToBeRead));
HSSFSheet sheet = workbook.getSheet("Sheet1");
for (int i = 0; i <= sheet.getLastRowNum(); i++) {
HSSFRow row = sheet.getRow((short) i);
if (null == row) {
continue;
} else {
HSSFCell cell = row.getCell((short) coloum);
if (null == cell) {
continue;
} else {
System.out.println(cell.getNumericCellValue());
int temp = (int) cell.getNumericCellValue();
cell.setCellValue(temp + 1);
}
}
}
FileOutputStream out = null;
try {
out = new FileOutputStream(fileToBeRead);
workbook.write(out);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
我的错误代码如下：
String fileToBeRead = "D:\\template.xlsx"; // excel位置
File dataFile=new File(fileToBeRead);
try {
XSSFWorkbook workbook = new XSSFWorkbook(dataFile);
XSSFSheet sheet = workbook.getSheet("Sheet1");
FileOutputStream out = null;
try {
out = new FileOutputStream(fileToBeRead);
workbook.write(out);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
简单比较以下差异处在XSSFWorkbook初始化的时候：
XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(fileToBeRead));(正确的) XSSFWorkbook workbook = new XSSFWorkbook(dataFiel);(错误的)
错误的描述是无法获得输入流: can not obtain input stream for xml....
是不是一个outputStream一定要对应一个InputStream呢？？？？？
以上错误代码修改如下,即可通过:
String fileToBeRead = "D:\\template.xlsx"; // excel位置
File dataFile=new File(fileToBeRead);
try {
XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(fileToBeRead));
XSSFSheet sheet = workbook.getSheet("Sheet1");
FileOutputStream out = null;
try {
out = new FileOutputStream(fileToBeRead);
workbook.write(out);
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Can't obtain the input stream from /docProps/app.xml
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原文地址：http://www.cnblogs.com/toSeeMyDream/p/4702770.html
