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Java POI导出excel问题
具体的使用方法有点记不清了。
不过按照下面的这个思路，通过POI的Style类就可以找到单元格的格式设置。
cell.getStyle().center();
Java 利用poi 导出excel表格如何在导出时自由选择路径?
导出时自由选择路径的代码如下：
1、后台输出Excel文件代码：
OutputStream output = response.getOutputStream();
response.reset();
response.setHeader("Content-disposition", "attachment; filename=" + path);
response.setContentType("Content-Type:application/vnd.ms-excel ");
wb.write(output);
output.close();
2、前端代码：
window.open("getExcelList","_blank");
导出excel数据
* @param id
* @param m
* @return
*/
@RequestMapping("/exportExcel")
public void exportExcel(@RequestParam("id") Integer id, Model m,HttpServletRequest req, HttpServletResponse resp) {
try {
ExportExcelP2pLoanPlanVo ex = new ExportExcelP2pLoanPlanVo();
String[] headers = {"最迟还款日", "还款金额","剩余几天","逾期几天", "罚息","是否垫付","状态","是否发放收益"};
ListP2pLoanPlanVo dataset = new ArrayListP2pLoanPlanVo();
ListP2pLoanPlan plans = this.planService.getListByLoan(id);
for (int i = 0; i plans.size(); i++) {
P2pLoanPlanVo p2pLoanPlanVo = new P2pLoanPlanVo();
p2pLoanPlanVo.setRepayDate(plans.get(i).getRepayDate());
p2pLoanPlanVo.setRepayAmount(plans.get(i).getRepayAmount());
if(plans.get(i).getRepayDays() = 0 plans.get(i).getStatus() == 0){
p2pLoanPlanVo.setRepayDays(plans.get(i).getRepayDays());
}else{
p2pLoanPlanVo.setRepayDays(0);
}
if(plans.get(i).getRepayDays() 0 plans.get(i).getStatus() == 0){
p2pLoanPlanVo.setRepayYqDays(-plans.get(i).getRepayDays());
}else{
p2pLoanPlanVo.setRepayYqDays(0);
}
java poi导出excel
用spire.xls.jar也可以导出excel, 代码更简单
import com.spire.xls.ExcelVersion;
import com.spire.xls.Workbook;
import com.spire.xls.Worksheet;
public class InsertArray {
public static void main(String[] args) {
//创建Workbook对象
Workbook wb = new Workbook();
//获取第一张工作表
Worksheet sheet = wb.getWorksheets().get(0);
//定义一维数据
String[] oneDimensionalArray = new String[]{"苹果", "梨子", "葡萄", "香蕉"};
//将数组从指定单个格开始写入工作表，true表示纵向写入，设置为false为横向写入
sheet.insertArray(oneDimensionalArray, 1, 1, true);
//定义二维数组
String[][] twoDimensionalArray = new String[][]{
{"姓名", "年龄", "性别", "学历"},
{"小张", "25", "男", "本科"},
{"小王", "24", "男", "本科"},
{"小李", "26", "女", "本科"}
};
//从指定单元格开始写入二维数组到工作表
sheet.insertArray(twoDimensionalArray, 1, 3);
//保存文档
wb.saveToFile("InsertArrays.xlsx", ExcelVersion.Version2016);
}
}
关于java poi 导出Excel如何导出的问题
简单的办法是，先做一份excel，这只好每一列的格式。把这个excel放到项目中，每次导出都是用这个excel当作模板复制一份即可。