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package com.xxx.omsvr.softwaremanager.ifc;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.lang.time.FastDateFormat;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFComment;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
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.hssf.util.HSSFColor;
/**
* æ¥èªCSDNå客
http://blog.csdn.net/lenotang/archive/2008/08/24/2823230.aspx * @author leno,slieer
* @version v1.0
* @param <T> åºç¨æ³åï¼ä»£è¡¨ä»»æä¸ä¸ªç¬¦åjavabeané£æ ¼çç±»
* 注æè¿é为äºç®åèµ·è§ï¼booleanåçå±æ§xxxçgetå¨æ¹å¼ä¸ºgetXxx(),èä¸æ¯isXxx()
* byte[]表jpgæ ¼å¼çå¾çæ°æ®
*/
public class ExportExcelUtil<T> {
private static FastDateFormat dateFormat = FastDateFormat.getInstance("yyyy-MM-dd hh:mm:ss");
/**
*
* è¿æ¯ä¸ä¸ªéç¨çæ¹æ³ï¼å©ç¨äºJAVAçåå°æºå¶ï¼å¯ä»¥å°æ¾ç½®å¨JAVAéåä¸å¹¶ä¸ç¬¦å·ä¸å®æ¡ä»¶çæ°æ®ä»¥EXCEL çå½¢å¼è¾åºå°æå®IO设å¤ä¸
* @param title è¡¨æ ¼æ é¢å
* @param headers è¡¨æ ¼å±æ§ååæ°ç»
* @param dataset éè¦æ¾ç¤ºçæ°æ®éå,éåä¸ä¸å®è¦æ¾ç½®ç¬¦åjavabeané£æ ¼çç±»ç对象ãæ¤æ¹æ³æ¯æç
* javabeanå±æ§çæ°æ®ç±»åæåºæ¬æ°æ®ç±»ååString,Date,byte[](å¾çæ°æ®)
* @param out ä¸è¾åºè®¾å¤å
³èçæµå¯¹è±¡ï¼å¯ä»¥å°EXCELæ档导åºå°æ¬å°æ件æè
ç½ç»ä¸
* @param pattern å¦æææ¶é´æ°æ®ï¼è®¾å®è¾åºæ ¼å¼ãé»è®¤ä¸º"yyy-MM-dd"
*/
@SuppressWarnings("unchecked")
public void exportExcel(String title, String[] headers,
Collection<T> dataset, OutputStream out) {
// 声æä¸ä¸ªå·¥ä½è
HSSFWorkbook workbook = new HSSFWorkbook();
// çæä¸ä¸ªè¡¨æ ¼
HSSFSheet sheet = workbook.createSheet(title);
// è®¾ç½®è¡¨æ ¼é»è®¤å宽度为15个åè
sheet.setDefaultColumnWidth(15);
// çæä¸ä¸ªæ ·å¼
HSSFCellStyle style = workbook.createCellStyle();
// 设置è¿äºæ ·å¼
style.setFillForegroundColor(HSSFColor.WHITE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
// çæä¸ä¸ªåä½
HSSFFont font = workbook.createFont();
font.setColor(HSSFColor.BLACK.index);
font.setFontHeightInPoints((short) 12);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// æåä½åºç¨å°å½åçæ ·å¼
style.setFont(font);
// 声æä¸ä¸ªç»å¾ç顶级管çå¨
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
// 产çè¡¨æ ¼æ é¢è¡
HSSFRow row = sheet.createRow(0);
for (short i = 0; i < headers.length; i++) {
HSSFCell cell = row.createCell(i);
cell.setCellStyle(style);
HSSFRichTextString text = new HSSFRichTextString(headers[i]);
cell.setCellValue(text);
}
// éåéåæ°æ®ï¼äº§çæ°æ®è¡
Iterator<T> it = dataset.iterator();
int index = 0;
while (it.hasNext()) {
index++;
row = sheet.createRow(index);
T t = (T) it.next();
// å©ç¨åå°ï¼æ ¹æ®javabeanå±æ§çå
å顺åºï¼å¨æè°ç¨getXxx()æ¹æ³å¾å°å±æ§å¼
Field[] fields = t.getClass().getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
HSSFCell cell = row.createCell(i);
//cell.setCellStyle(style);
Field field = fields[i];
String fieldName = field.getName();
String getMethodName = "get" + fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
try {
Class tCls = t.getClass();
Method getMethod = tCls.getMethod(getMethodName,new Class[] {});
Object value = getMethod.invoke(t, new Object[] {});
cell.setCellValue(value != null ? value.toString() : "");
} catch (Exception e) {
e.printStackTrace();
} finally {
// æ¸
çèµæº
}
}
}
try {
workbook.write(out);
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}