Android开发生成保存Excel文件,首先下载两个jar包。下载地址:Android读写Excel文件的两个jar包资源-CSDN文库
poi-3.12-android-a.jar
poi-ooxml-schemas-3.12-20150511-a.jar
把jar包放在app的libs文件夹下,引用jar我一般都在build.gradle的dependencies中添加
implementation fileTree(dir: "libs", include: ["*.?ar"])
把.jar和.aar都引用上。
如果项目需要混淆,则加上混淆
#生成Excel
-keep class com.bea.xml.stream.** { *;}
-keep class com.wutka.dtd.** { *;}
-keep class org.** { *;}
-keep class aavax.xml.** { *;}
-keep class com.microsoft.schemas.office.x2006.** { *; }
-keep class schemaorg_apache_xmlbeans.** { *; }
-keep class schemasMicrosoftComOfficeExcel.** { *; }
-keep class schemasMicrosoftComOfficeOffice.** { *; }
-keep class schemasMicrosoftComVml.** { *; }
-keep class repackage.** { *; }
-keep class schemaorg_apache_xmlbeans.** { *; }
然后就是生成Excel文件了
/**
* 创建excel分析结果文件
*/
private void createExcel(){
new Thread(){
@Override
public void run() {
try {
Log.i("lllllll", "createExcel ======");
XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet sheet = workbook.createSheet(WorkbookUtil.createSafeSheetName("sheet"));
//第一行
Row row0 = sheet.createRow(0);
String[] title = new String[]{"市公司", "道路名称", "路段长度(米)", "计算值", "起始经纬度", "结束经纬度"};
for (int i= 0;i<title.length;i++){
Cell cell = row0.createCell(i);
cell.setCellValue(title[i]);
}
//添加数据
for (int i= 0;i<excelBeans.size();i++){
ExcelBean eb = excelBeans.get(i);
Row row = sheet.createRow(i+1);
for (int j= 0;j<title.length;j++){
Cell cell = row.createCell(j);
if (j == 0){
cell.setCellValue(eb.getCity());
}else if (j == 1){
cell.setCellValue(eb.getAddress());
}else if (j == 2){
double distance = DistanceUtil.getDistance(eb.getStartLatLng(), eb.getStopLatLng());
cell.setCellValue(NumberUtils.makeNumDecimalPlaces(distance, 2));
}else if (j == 3){
cell.setCellValue(eb.getCoverage());
}else if (j == 4){
cell.setCellValue("["+eb.getStartLatLng().longitude + ","+eb.getStartLatLng().latitude+"]");
}else if (j == 5){
cell.setCellValue("["+eb.getStopLatLng().longitude + ","+eb.getStopLatLng().latitude+"]");
}
}
}
String path = parseFile.getAbsolutePath();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd-HHmmss");
String time = dateFormat.format(new Date());
analysisFilePath = path.replace(".csv", "_analysis_"+earfcn+"_"+time+".xlsx");
Log.i("lllllll", "fileName ======" +analysisFilePath);
FileOutputStream fos = new FileOutputStream(analysisFilePath);
workbook.write(fos);
fos.flush();
fos.close();
Log.i("lllllll", "保存成功 ======");
}catch (Exception e){
e.printStackTrace();
}
}
}.start();
}
我这生成Excel之后,在手机里能打开,但是在电脑上只能用WPS打开,用offic打开就会报错。我查了半天,最终没有找到问题在哪。有可能是我电脑上的offic版本太低了,不过WPS能打开已经能满足需求了。