POI导入Excel
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.io.FileInputStream;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.text.DecimalFormat;
import java.text.Format;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DateUtil;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import com.cnpc.oms.om.pojo.CommOmWorkStatus;
/**
*
* 标题：Excel导入工具类
*
* 作者：ShengLiguo
*
*/
public class OmImportExcelUtil {
public static List analysis03ExcelDate(InputStream inStream, String[] head)
throws Exception {
List list = new ArrayList();
HSSFWorkbook book = new HSSFWorkbook(inStream);
HSSFSheet sheet = book.getSheetAt(0);
HSSFRow row = null;
for (int i = 1; i <= sheet.getLastRowNum(); i++) {
Map map = new HashMap();
String questionSenderOrg = "";
String questionType = "";
int k = 0;
row = sheet.getRow(i);
for (int j = 0; j < head.length; j++) {
if (head[j].equals("questionSenderOrg")) {
if (!"".equals(questionSenderOrg)
&& !"".equals(getCellValue(row.getCell(j)))) {
questionSenderOrg = questionSenderOrg + "-"
+ getCellValue(row.getCell(j));
} else {
questionSenderOrg = questionSenderOrg
+ getCellValue(row.getCell(j));
}
if (k++ == 2) {
map.put(head[j], questionSenderOrg);
k = 0;
}
continue;
}
if (head[j].equals("questionType")) {
if (!"".equals(questionType)
&& !"".equals(getCellValue(row.getCell(j)))) {
questionType = questionType + "-"
+ getCellValue(row.getCell(j));
} else {
questionType = questionType
+ getCellValue(row.getCell(j));
}
if (k++ == 4) {
map.put(head[j], questionType);
k = 0;
}
continue;
}
map.put(head[j], getCellValue(row.getCell(j)));
}
list.add(map);
}
return list;
}
public static List analysis07ExcelDate(InputStream inStream, String[] head)
throws Exception {
List list = new ArrayList();
XSSFWorkbook book = new XSSFWorkbook(inStream);
XSSFSheet sheet = book.getSheetAt(0);
XSSFRow row = null;
for (int i = 1; i <= sheet.getLastRowNum(); i++) {
Map map = new HashMap();
String questionSenderOrg = "";
String questionType = "";
int k = 0;
row = sheet.getRow(i);
for (int j = 0; j < head.length; j++) {
if (head[j].equals("questionSenderOrg")) {
if (!"".equals(questionSenderOrg)
&& !"".equals(getCellValue(row.getCell(j)))) {
questionSenderOrg = questionSenderOrg + "-"
+ getCellValue(row.getCell(j));
} else {
questionSenderOrg = questionSenderOrg
+ getCellValue(row.getCell(j));
}
if (k++ == 2) {
map.put(head[j], questionSenderOrg);
k = 0;
}
continue;
}
if (head[j].equals("questionType")) {
if (!"".equals(questionType)
&& !"".equals(getCellValue(row.getCell(j)))) {
questionType = questionType + "-"
+ getCellValue(row.getCell(j));
} else {
questionType = questionType
+ getCellValue(row.getCell(j));
}
if (k++ == 4) {
map.put(head[j], questionType);
k = 0;
}
continue;
}
map.put(head[j], getCellValue(row.getCell(j)));
}
list.add(map);
}
return list;
}
private static Object getCellValue(Cell cell) {
if (cell.getCellType() == cell.CELL_TYPE_STRING) {
return cell.getStringCellValue();
}
if (cell.getCellType() == cell.CELL_TYPE_NUMERIC) {
if (DateUtil.isCellDateFormatted(cell)) {
return cell.getDateCellValue();
} else {
Format format = new DecimalFormat("#");
return format.format(cell.getNumericCellValue());
}
}
return "";
}
private static PropertyDescriptor[] getPropertyDescriptors(Object obj) {
BeanInfo ObjInfo;
try {
ObjInfo = Introspector.getBeanInfo(obj.getClass());
} catch (IntrospectionException e) {
return new PropertyDescriptor[0];
}
PropertyDescriptor[] propertyDesc = ObjInfo.getPropertyDescriptors();
return propertyDesc;
}
public static Object setPropertyValue(Map map, Object obj) {
PropertyDescriptor[] propertyDesc = getPropertyDescriptors(obj);
for (int i = 0; i < propertyDesc.length; i++) {
if (propertyDesc[i].getName().compareToIgnoreCase("class") == 0)
continue;
Object objValue = map.get(propertyDesc[i].getName()) == null ? ""
: map.get(propertyDesc[i].getName());
Object value = parseObject(objValue, propertyDesc[i]
.getPropertyType());
try {
propertyDesc[i].getWriteMethod().invoke(obj, value);
} catch (Exception e) {
e.printStackTrace();
}
}
return obj;
}
public static Object parseObject(Object fromObj, Class toClass) {
Object objReturn = null;
if (fromObj.equals("")) {
return objReturn;
}
String fromClassName = fromObj.getClass().getName();
String toClassName = toClass.getName();
if (fromClassName.equals(toClassName)) {
objReturn = fromObj;
} else if ("java.lang.Short".equals(toClassName)
|| "java.lang.Integer".equals(toClassName)
|| "java.lang.Long".equals(toClassName)
|| "java.lang.Float".equals(toClassName)
|| "java.lang.Double".equals(toClassName)
|| "java.math.BigDecimal".equals(toClassName)) {
try {
Constructor constructor = toClass
.getConstructor(new Class[] { String.class });
objReturn = constructor.newInstance(new Object[] { fromObj });
} catch (Exception e) {
e.printStackTrace();
}
} else {
throw new IllegalArgumentException("From " + fromClassName + " To "
+ toClassName + ", Unsupported");
}
return objReturn;
}
public static void main(String[] args) throws Exception {
String[] head = { "title", "questionSenderOrg", "questionSenderOrg",
"questionSenderOrg", "questionType", "questionType",
"questionType", "questionType", "questionType",
"questionReceiver", "solveStatus", "questionAskDate",
"questionSolveDate", "questionFrom", "questionSolver",
"questionSolveMethod", "questionSender", "questionSenderTel" };
InputStream in = new FileInputStream(
"C:/Documents and Settings/ShengLiGuo/桌面/工单.xlsx");
List<Map> mapList = analysis07ExcelDate(in, head);
CommOmWorkStatus workStatus = new CommOmWorkStatus();
for (Map map : mapList) {
setPropertyValue(map, workStatus);
System.out.println("======" + workStatus.getTitle());
System.out.println("======" + workStatus.getQuestionFrom());
}
}
}