1. 使用POI进行Excel的读取解析
由于是2007版本的Excel，即.xlxs后缀,需要使用的Jar包为
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.17</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.17</version>
</dependency>
解析的工具类是网上找的，处理单元格中增加了日期和处理科学计数法等
下边直接上代码：
public class ImportExecl {
/** 总行数 */
private int totalRows = 0;
/** 总列数 */
private int totalCells = 0;
/** 错误信息 */
private String errorInfo;
/** 构造方法 */
public ImportExecl() {
}
public int getTotalRows() {
return totalRows;
}
public int getTotalCells() {
return totalCells;
}
public String getErrorInfo() {
return errorInfo;
}
public boolean validateExcel(String filePath) {
/** 检查文件名是否为空或者是否是Excel格式的文件 */
if (filePath == null
|| !(WDWUtil.isExcel2003(filePath) || WDWUtil
.isExcel2007(filePath))) {
errorInfo = "文件名不是excel格式";
return false;
}
/** 检查文件是否存在 */
File file = new File(filePath);
if (file == null || !file.exists()) {
errorInfo = "文件不存在";
return false;
}
return true;
}
public List<List<String>> read(String filePath) {
List<List<String>> dataLst = new ArrayList<List<String>>();
InputStream is = null;
try {
/** 验证文件是否合法 */
if (!validateExcel(filePath)) {
System.out.println(errorInfo);
return null;
}
/** 判断文件的类型，是2003还是2007 */
boolean isExcel2003 = true;
if (WDWUtil.isExcel2007(filePath)) {
isExcel2003 = false;
}
/** 调用本类提供的根据流读取的方法 */
File file = new File(filePath);
is = new FileInputStream(file);
dataLst = read(is, isExcel2003);
is.close();
} catch (Exception ex) {
ex.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
is = null;
e.printStackTrace();
}
}
}
/** 返回最后读取的结果 */
return dataLst;
}
public List<List<String>> read(InputStream inputStream, boolean isExcel2003) {
List<List<String>> dataLst = null;
try {
/** 根据版本选择创建Workbook的方式 */
Workbook wb = null;
if (isExcel2003) {
wb = new HSSFWorkbook(inputStream);
} else {
wb = new XSSFWorkbook(inputStream);
}
dataLst = read(wb);
} catch (IOException e) {
e.printStackTrace();
}
return dataLst;
}
private List<List<String>> read(Workbook wb) {
List<List<String>> dataLst = new ArrayList<List<String>>();
/** 得到第一个shell */
Sheet sheet = wb.getSheetAt(0);
/** 得到Excel的行数 */
this.totalRows = sheet.getPhysicalNumberOfRows();
/** 得到Excel的列数 */
if (this.totalRows >= 1 && sheet.getRow(0) != null) {
this.totalCells = sheet.getRow(0).getPhysicalNumberOfCells();
}
/** 循环Excel的行 */
for (int r = 0; r < this.totalRows; r++) {
Row row = sheet.getRow(r);
if (row == null) {
continue;
}
List<String> rowLst = new ArrayList<String>();
/** 循环Excel的列 */
for (int c = 0; c < this.getTotalCells(); c++) {
Cell cell = row.getCell(c);
String cellValue = "";
if (null != cell) {
// 以下是判断数据的类型
switch (cell.getCellType()) {
case HSSFCell.CELL_TYPE_NUMERIC: // 数字
if(HSSFDateUtil.isCellDateFormatted(cell)){
Date date = cell.getDateCellValue();
DateFormat formater = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
cellValue = formater.format(date);
}else{
DecimalFormat df = new DecimalFormat("0");
cellValue = df.format(cell.getNumericCellValue());
}
break;
case HSSFCell.CELL_TYPE_STRING: // 字符串
cellValue = cell.getStringCellValue();
break;
case HSSFCell.CELL_TYPE_BOOLEAN: // Boolean
cellValue = cell.getBooleanCellValue() + "";
break;
case HSSFCell.CELL_TYPE_FORMULA: // 公式
cellValue = cell.getCellFormula() + "";
break;
case HSSFCell.CELL_TYPE_BLANK: // 空值
cellValue = "";
break;
case HSSFCell.CELL_TYPE_ERROR: // 故障
cellValue = "非法字符";
break;
default:
cellValue = "未知类型";
break;
}
}
rowLst.add(cellValue);
}
/** 保存第r行的第c列 */
dataLst.add(rowLst);
}
return dataLst;
}
public static void main(String[] args) throws Exception {
ImportExecl poi = new ImportExecl();
// List<List<String>> list = poi.read("d:/aaa.xls");
List<List<String>> list = poi.read("D:\\Users\\test.xlsx");
if (list != null) {
for (int i = 0; i < list.size(); i++) {
System.out.print("第" + (i) + "行");
List<String> cellList = list.get(i);
for (int j = 0; j < cellList.size(); j++) {
// System.out.print(" 第" + (j + 1) + "列值：");
System.out.print(" " + cellList.get(j));
}
System.out.println();
}
}
}
}
class WDWUtil {
public static boolean isExcel2003(String filePath) {
return filePath.matches("^.+\\.(?i)(xls)$");
}
public static boolean isExcel2007(String filePath) {
return filePath.matches("^.+\\.(?i)(xlsx)$");
}
}
2.将形成的脚本写入xml文件
public class process {
private static final String baseStr="INSERT INTO t_aps_user_operations_catalog (NUMBER, COMPANY_CODE, ONEGRADE_CATALOG_CODE, ONEGRADE_CATALOG_NAME, CATALOG_CODE, CATALOG_FINANCE, CATALOG_OPERTIONS, CREATE_TIME, UPDATE_TIME, CATALOG_CODE_FINANCE) VALUES (";
private static final String filePath="E://数据.xlsx";
public static void main(String[] args) throws IOException {
ImportExecl importExecl=new ImportExecl();
List<List<String>> mydata=importExecl.read(filePath);
System.out.println(mydata.size());
File outFile=new File("D:/t_aps_user_operations_catalog.xml");
if(!outFile.exists()){
outFile.createNewFile();
}
//使用BufferWriter写入
FileWriter fw = new FileWriter(outFile, true);
BufferedWriter bw = new BufferedWriter(fw);
for(int i=0;i<mydata.size();i++){
if(i>=2){
StringBuilder sb=new StringBuilder(baseStr);
List<String> rowdata=mydata.get(i);
for(int j=1;j<rowdata.size();j++){
String data=rowdata.get(j);
//如果为空的话，直接输出 null
if(data==null || data.length()==0){
data="null";
sb.append(data).append(", ");
}else{
//其他的字段都加上单引号 '
sb.append("'").append(data).append("'").append(", ");
}
}
String eachLine=sb.toString();
// 去掉最后一个 ,
eachLine=eachLine.substring(0,eachLine.lastIndexOf(","));
eachLine=eachLine+");";
bw.write(eachLine);
//每一个语句换行
bw.newLine();
}
}
bw.flush();
bw.close();
}
}
网友评论