EXCEL解析工具

public class ExcelContentParser<T>
{
private Workbook wb;

private static final String newExcelPrefx = ".xlsx";

/**
*
* @Description
* @param list
* @param c
* @param in
* @param propertyNames
* @param fileName
* @param beginRowNum
* @throws Exception
* @Date 2015-11-16 上午10:54:40
*/
public void parseExcel(List<T> list, Class<T> c, InputStream in, String[] propertyNames, String fileName,
Integer beginRowNum) throws Exception
{
init(in, fileName);
doParse(list, c, propertyNames, beginRowNum);
}

private void init(InputStream in, String fileName) throws Exception
{
try
{
if(fileName.indexOf(newExcelPrefx) > 0)
{
// 2007以上版本excel
wb = new XSSFWorkbook(in);
}
else
{// 老版本excel
POIFSFileSystem fs = new POIFSFileSystem(in);
wb = new HSSFWorkbook(fs);
}
}
catch(Exception ex)
{
throw ex;
}
finally
{
try
{
in.close();
}
catch(IOException ex)
{
throw ex;
}
}
}

/**
*
* @Description
* @param list
* @param c
* @param propertyNames
* @param beginRowNum
* @throws Exception
* @Date 2015-11-16 上午10:54:51
*/
private void doParse(List<T> list, Class<T> c, String[] propertyNames, Integer beginRowNum) throws Exception
{
Sheet sheet = wb.getSheetAt(0);
int rowNum = sheet.getLastRowNum();

if(beginRowNum == null || beginRowNum < 0)
{
beginRowNum = 0;
}
for(int row = beginRowNum; row <= rowNum; row++)
{
doParseRow(sheet, row, list, c, propertyNames);
}
}

/**
*
* @Description
* @param sheet
* @param row
* @param list
* @param c
* @param propertyNames
* @throws Exception
* @Date 2015-11-16 上午10:55:00
*/
@SuppressWarnings("unchecked")
private void doParseRow(Sheet sheet, int row, List<T> list, Class<T> c, String[] propertyNames) throws Exception
{
T bean = c.newInstance();

Row dataRow = sheet.getRow(row);
if(dataRow == null)
return;

if(bean instanceof Map)
{
Map<String, Object> map = (Map<String, Object>)bean;
for(int j = dataRow.getFirstCellNum(); j < dataRow.getLastCellNum() && j<propertyNames.length; ++j)
{
Object cellValue = getCellValue(dataRow.getCell(j));
String cellStr = (cellValue == null ? "" : cellValue.toString().trim());
if(cellValue instanceof Number)
{
cellStr = cellStr.endsWith(".0") ? cellStr.substring(0, cellStr.length() - 2) : cellStr;
}

if(cellStr.contains("E") && (cellStr.length() - cellStr.lastIndexOf("E")) < 5)
{
try
{
DecimalFormat df = new DecimalFormat("#");
cellStr = df.format(Double.parseDouble(cellStr));
}
catch(NumberFormatException e)
{
}
}
cellStr = cellStr.replace("　", " ").trim();// 替换全角的空格为半角的空格并trim
if(cellValue instanceof Number)
cellStr = cellStr.endsWith(".0") ? cellStr.substring(0, cellStr.length() - 2) : cellStr;

map.put(propertyNames[j], cellStr);
}
}
else
{
for(int j = dataRow.getFirstCellNum(); j < dataRow.getLastCellNum() && j<propertyNames.length; ++j)
{
convertExcelType(bean, propertyNames[j], getCellValue(dataRow.getCell(j)));
}
}

list.add(bean);
}

/**
*
* @Description
* @param cell
* @return
* @Date 2015-11-16 上午10:55:09
*/
private Object getCellValue(Cell cell)
{
Object value = null;
if(cell != null)
{
int cellType = cell.getCellType();
CellStyle style = cell.getCellStyle();
short format = style.getDataFormat();
switch(cellType)
{
case HSSFCell.CELL_TYPE_NUMERIC:
double numTxt = cell.getNumericCellValue();
if(format == 22 || format == 14)
value = HSSFDateUtil.getJavaDate(numTxt);
else
value = numTxt;
break;
case HSSFCell.CELL_TYPE_BOOLEAN:
boolean booleanTxt = cell.getBooleanCellValue();
value = booleanTxt;
break;
case HSSFCell.CELL_TYPE_BLANK:
value = null;
break;
case HSSFCell.CELL_TYPE_FORMULA:
// HSSFFormulaEvaluator eval = new HSSFFormulaEvaluator(
// (HSSFWorkbook) wb);
// eval.evaluateInCell(cell);
// value = getCellValue(cell);
break;
case HSSFCell.CELL_TYPE_STRING:
RichTextString rtxt = cell.getRichStringCellValue();
if(rtxt == null)
{
break;
}
String txt = rtxt.getString();
value = txt;
break;
default:
// System.out.println(cell.getColumnIndex()+" col cellType="+cellType);
}
}
return value;

}

/**
*
* @Description
* @param t
* @param propertyName
* @param value
* @throws Exception
* @Date 2015-11-16 上午10:55:17
*/
private void convertExcelType(T t, String propertyName, Object value) throws Exception
{
String cellStr = (value == null ? "" : value.toString().trim());

Class<?> fieldType = t.getClass().getDeclaredField(propertyName).getType();
if(String.class.equals(fieldType))
{
if(cellStr.contains("E") && (cellStr.length() - cellStr.lastIndexOf("E")) < 5)
{
try
{
DecimalFormat df = new DecimalFormat("#");
cellStr = df.format(Double.parseDouble(cellStr));
}
catch(NumberFormatException e)
{
}
}
cellStr = cellStr.replace("　", " ").trim();// 替换全角的空格为半角的空格并trim
if(value instanceof Number)
cellStr = cellStr.endsWith(".0") ? cellStr.substring(0, cellStr.length() - 2) : cellStr;

setValueToBean(t, propertyName, cellStr);
}
else if(Float.class.equals(fieldType) || fieldType == Float.TYPE)
{
Float floatTemp = toFloat(cellStr);
if(floatTemp == null || floatTemp.equals(Float.NaN))
return;

setValueToBean(t, propertyName, floatTemp);
}
else if(Integer.class.equals(fieldType) || fieldType == Integer.TYPE)
{
DecimalFormat df = new DecimalFormat("#");
cellStr = df.format(Double.parseDouble(cellStr));

setValueToBean(t, propertyName, Integer.valueOf(cellStr));
}
else if(Long.class.equals(fieldType) || fieldType == Long.TYPE)
{
setValueToBean(t, propertyName, Math.round(Double.valueOf(cellStr)));
}
else if(Double.class.equals(fieldType) || fieldType == Double.TYPE)
{
Double doubleTemp = toDouble(cellStr);
if(doubleTemp == null || doubleTemp.equals(Double.NaN))
return;

setValueToBean(t, propertyName, doubleTemp);
}
else if(Date.class.equals(fieldType))
{
Date useDate = null;
if(value instanceof Number)
{// excel中用户的日期是’自定义‘格式的时候 取出来是个数字类型的
// 所以在这要转换一下
useDate = HSSFDateUtil.getJavaDate((Double)value);
}
else if(value instanceof Date)
{
useDate = (Date)value;
}
else
{
// 2010.8.100:00:00:0
String pattern = "yyyy-MM-dd";
if((cellStr.indexOf(".") == 4 || cellStr.indexOf(".") == 2 || cellStr.indexOf("/") == 4 || cellStr.indexOf("/") == 2))
{
cellStr = cellStr.replace(".", "-").replace("/", "-");
}
// 有填入 2010.8.100:00:00:0数据的情况 所以作如下处理
if(cellStr.indexOf(":") != -1)
{
pattern = "yyyy-MM-dd hh:mm:ss";
cellStr = cellStr.substring(0, cellStr.indexOf(":") - 2) + " "
+ cellStr.substring(cellStr.indexOf(":") - 2);

}
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
useDate = simpleDateFormat.parse(cellStr);// 出现用户自定义格式的情况：obj.getClass().equals(Date.class)为false
}
setValueToBean(t, propertyName, useDate);
}
}

/**
*
* @Description
* @param t
* @param name
* @param value
* @throws Exception
* @Date 2015-11-16 上午10:55:38
*/
private void setValueToBean(T t, String name, Object value) throws Exception
{
BeanUtils.setProperty(t, name, value);
}

/**
*
* @Description
* @param obj
* @return
* @Date 2015-11-16 上午10:55:38
*/
private Float toFloat(Object obj)
{
if(obj == null || "".equals(obj))
return null;
if(obj instanceof Number)
return ((Number)obj).floatValue();
try
{
return Float.parseFloat(obj.toString().replace(" ", ""));
}
catch(Exception e)
{
}
return Float.NaN;
}

/**
*
* @Description
* @param obj
* @return
* @Date 2015-11-16 上午10:55:38
*/
public static Double toDouble(Object obj)
{
if(obj == null || "".equals(obj))
return null;
if(obj instanceof Number)
return ((Number)obj).doubleValue();
try
{
return Double.parseDouble(obj.toString().trim());
}
catch(Exception e)
{
}
return 0d;
}

public static void main(String[] args) throws FileNotFoundException {
MMAnalyzer.removeWord("路透社");
String file = ExcelContentParser.class.getClassLoader().getResource("dic.txt").getFile();
MMAnalyzer.addDictionary(new FileReader(file));
MMAnalyzer analyzer = new MMAnalyzer();
String text = "据路透社报道，印度尼西亚社会事务部一官员星期二(29日)表示，"
+ "日惹市附近当地时间27日晨5时53分发生的里氏6.2级地震已经造成至少5427人死亡，"
+ "20000余人受伤，近20万人无家可归。";
String eng = "据路透社报道，thanks to at the beginning of this year, there are fewer and fewer traffic accidents. ";
try {
System.out.println(MMAnalyzer.contains("thanks to"));
System.out.println(MMAnalyzer.contains("路透社"));
System.out.println(MMAnalyzer.size());
String res = analyzer.segment(eng, ",");
System.out.println(res);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//    	try {
//			TestAnalyzer();
//		} catch (IOException e) {
//			// TODO Auto-generated catch block
//			e.printStackTrace();
//		}
}

public static void TestAnalyzer() throws IOException {
Analyzer[] analyzers = new Analyzer[4];
analyzers[0] = new WhitespaceAnalyzer();
analyzers[1] = new SimpleAnalyzer();
analyzers[2] = new StopAnalyzer();
analyzers[3] = new StandardAnalyzer();
String text = "This is a test document. For more info, in front of me, please visit Victor's Blog: http://lqgao.spaces.msn.com. ";
for (int i = 0; i < analyzers.length; i++) {
DumpAnalyzer(analyzers[i], new StringReader(text));
System.out.println("------------------------------");
}
}

public static void DumpAnalyzer(Analyzer analyzer, StringReader reader) throws IOException {
TokenStream stream = analyzer.tokenStream("in front of", reader);
org.apache.lucene.analysis.Token token;
while ((token = stream.next()) != null) {
System.out.println("[" + token.termText() + "]");
}
}
}

ExcelContentParser<T> parser = new ExcelContentParser<T>();
List<Word> list = new ArrayList<Word>();
String[] propertyNames = {"p1","p2","p3","p4","p5","p6"};
parser.parseExcel(list, T.class, file.getInputStream(), propertyNames, file.getOriginalFilename(), 1);