JSF action redirect

问题： jsf 中有新建页面new.jsf，String save() 添加成功后跳转到编辑页面edit.… Read More

POI 读取xlsx 报错 org.apache.poi.POIXMLException: org.apache.poi.openxml4j.exceptions.InvalidFormatException: Package should contain a content type part [M1.13]

问题：代码

        Workbook wb = new HSSFWorkbook(new POIFSFileSystem(new FileInputStream(file)));
        Sheet sheet = wb.getSheetAt(0);
        int lastRowNum = sheet.getLastRowNum();
        for (int i = 0; i <= lastRowNum; ++i) {
            Row row = sheet.getRow(i);
        }

Workbook wb = new HSSFWorkbook(new POIFSFileSystem(new FileInputStream(file)));

Sheet sheet = wb.getSheetAt(0);

int lastRowNum = sheet.getLastRowNum();

for (int i = 0; i <= lastRowNum; ++i) {

Row row = sheet.getRow(i);

}

报错： [cra… Read More

IT问题

程序员的疑难杂症录

月份：2015年12月

JSF action redirect

POI 读取xlsx 报错 org.apache.poi.POIXMLException: org.apache.poi.openxml4j.exceptions.InvalidFormatException: Package should contain a content type part [M1.13]