把数据从网页中直接导入到excel中，下面就上代码。
页面js中导出的方法：
function exportExcel() {
var queryPara = sy.serializeObject($('#agendaForm'));
var url = BASE_URL+"exportExcel.do?queryPara=" + JSON.stringify(queryPara) ;
window.location.href = url;
}html页面的代码：
<form id="agendaForm" name="agendaForm" method="post"> <table id="agendatable" class="table table-bordered"> <tr> <td align="right">开始时间 </td> <td colspan="3"> <input id="aaId" name="aaId" hidden/> <input id="aiId" name="aiId" value="1" hidden/> <input name="starttime" value="starttime" style="width:400px;"> </td> </tr> <tr> <td align="right">结束时间 </td> <td colspan="3"> <input name="endtime" value="endtime" style="width:400px;"> </td> </tr> <tr> <td align="right">活动内容 </td> <td colspan="3"> <input name="content" value="content" style="width:400px;"> </td> </tr> <tr> <td align="right">演讲嘉宾 </td> <td colspan="3"><input name="speaker" value="speaker" style="width:400px;"></td> </tr> </form>controller层
@RequestMapping(value = "/exportExcel.do")
public void exportExcel(HttpServletRequest request,HttpServletResponse response) {
String queryPara = request.getParameter("queryPara");
JSONUtils.getMorpherRegistry().registerMorpher(
new DateMorpherEx(new String[] { "yyyy-MM-dd" },
(Date) null));
JSONObject jo = JSONObject.fromObject(queryPara);
ActivityAgenda activityAgenda = (ActivityAgenda)JSONObject.toBean(jo,ActivityAgenda.class);
/*if(jo.containsKey("time") && !StringUtils.isEmpty(jo.getString("time")))
activityAgenda.setTime(DateHandler.strToDate(jo.getString("time"), "yyyy-MM-dd"));*/
try {
String excelFileName = new String((DateHandler.dateToStr(new Date(),"yyyyMMddhhmmss")+".xls").getBytes("gb2312"), "ISO8859-1" ) ;
response.setContentType("octets/stream");
response.addHeader("Content-Disposition", "attachment;filename="+excelFileName);
//
OutputStream out = response.getOutputStream();
agendaService.exportExcel(activityAgenda, out);
out.close();
System.out.println("excel导出成功！");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}service层：
public void exportExcel(ActivityAgenda activityAgenda, OutputStream os) {
// TODO Auto-generated method stub
Map keyMap = new HashMap();
keyMap.put("queryQarameterSQL",this.setQueryQarameterSQL(activityAgenda));
List<ActivityAgenda> list = this.getListByKeyMap(keyMap);
ExportExcel<ActivityAgenda> exportExcel = new ExportExcel<ActivityAgenda>();
exportExcel.exportExcel("导出议程信息", CnscecmsConst.ExcelConst.HEAD_AGENDA,CnscecmsConst.ExcelConst.FIELDNAMES_AGENDA, list, os,"yyyy-MM-dd");
}
private String setQueryQarameterSQL(ActivityAgenda activityAgenda) {
// TODO Auto-generated method stub
String queryQarameterSQL = "AI_ID = " + activityAgenda.getAiId() +" ";
// keyMap.put("activityId", activityAttendPersonsEx.getAiId());
if (!StringUtils.isEmpty(activityAgenda.getStarttime())) {
queryQarameterSQL += " and starttime like '%"
/*+ activityAgenda.getContent()*/ + "%' ";
}
if (!StringUtils.isEmpty(activityAgenda.getEndtime())) {
queryQarameterSQL += " and endtime like '%"
/*+ activityAgenda.getContent()*/ + "%' ";
}
if (!StringUtils.isEmpty(activityAgenda.getContent())) {
queryQarameterSQL += " and content like '%"
/*+ activityAgenda.getContent()*/ + "%' ";
}
if (!StringUtils.isEmpty(activityAgenda.getSpeaker())) {
queryQarameterSQL += " and speaker like '%"
/*+ activityAgenda.getSpeaker()*/ + "%' ";
}
if (!StringUtils.isEmpty(activityAgenda.getGuestIntroduction())) {
queryQarameterSQL += " and guest_Introduction like '%"
/*+ activityAgenda.getGuestIntroduction()*/ + "%' ";
}
return queryQarameterSQL;
}
参数设置：
public static final String[] HEAD_AGENDA = {"Id","开始时间","结束时间","活动内容","演讲嘉宾","嘉宾介绍"};
public static final String[] FIELDNAMES_AGENDA = {"aaId","starttime","endtime","content","speaker","guestIntroduction"};
exportExcel
/**
* 这是一个通用的方法，利用了JAVA的反射机制，可以将放置在JAVA集合中并且符号一定条件的数据以EXCEL 的形式输出到指定IO设备上
*
* @param title
* 表格标题名
* @param headers
* 表格属性列名数组
* @param fieldNames
* 定义需要导出的javabean的属性数组
* @param dataset
* 需要显示的数据集合,集合中一定要放置符合javabean风格的类的对象。此方法支持的
* javabean属性的数据类型有基本数据类型及String,Date,byte[](图片数据)
* @param out
* 与输出设备关联的流对象，可以将EXCEL文档导出到本地文件或者网络中
* @param pattern
* 如果有时间数据，设定输出格式。默认为"yyy-MM-dd"
*/
@SuppressWarnings("unchecked")
public void exportExcel(String title, String[] headers,String[] fieldNames,
Collection<T> dataset, OutputStream out, String pattern) {
// 声明一个工作薄
HSSFWorkbook workbook = new HSSFWorkbook();
// 生成一个表格
HSSFSheet sheet = workbook.createSheet(title);
// 设置表格默认列宽度为15个字节
sheet.setDefaultColumnWidth((short) 15);
// 生成一个样式
HSSFCellStyle style = workbook.createCellStyle();
// 设置这些样式
style.setFillForegroundColor(HSSFColor.SKY_BLUE.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);
// 生成一个字体
HSSFFont font = workbook.createFont();
font.setColor(HSSFColor.VIOLET.index);
font.setFontHeightInPoints((short) 12);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
// 把字体应用到当前的样式
style.setFont(font);
// 生成并设置另一个样式
HSSFCellStyle style2 = workbook.createCellStyle();
style2.setFillForegroundColor(HSSFColor.LIGHT_YELLOW.index);
style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style2.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style2.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style2.setBorderRight(HSSFCellStyle.BORDER_THIN);
style2.setBorderTop(HSSFCellStyle.BORDER_THIN);
style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
style2.setWrapText(true);//设置自动换行
// 生成另一个字体
HSSFFont font2 = workbook.createFont();
font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
// 把字体应用到当前的样式
style2.setFont(font2);
// 声明一个画图的*管理器
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
// 定义注释的大小和位置,详见文档
HSSFComment comment = patriarch.createComment(new HSSFClientAnchor(0, 0, 0, 0, (short) 4, 2, (short) 6, 5));
// 设置注释内容
comment.setString(new HSSFRichTextString("可以在POI中添加注释！"));
// 设置注释作者，当鼠标移动到单元格上是可以在状态栏中看到该内容.
comment.setAuthor("dean");
//产生表格标题行
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);
}
//遍历集合数据，产生数据行
Iterator<T> it = dataset.iterator();
int index = 0;
while (it.hasNext()) {
index++;
row = sheet.createRow(index);
T t = (T) it.next();
//利用反射，根据javabean属性的先后顺序，动态调用getXxx()方法得到属性值
// Field[] fields = t.getClass().getDeclaredFields();
for (short i = 0; i < fieldNames.length; i++) {
HSSFCell cell = row.createCell(i);
cell.setCellStyle(style2);
// Field field = fields[i];
String fieldName = fieldNames[i];
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[] {});
//判断值的类型后进行强制类型转换
String textValue = null;
// if (value instanceof Integer) {
// int intValue = (Integer) value;
// cell.setCellValue(intValue);
// } else if (value instanceof Float) {
// float fValue = (Float) value;
// textValue = new HSSFRichTextString(
// String.valueOf(fValue));
// cell.setCellValue(textValue);
// } else if (value instanceof Double) {
// double dValue = (Double) value;
// textValue = new HSSFRichTextString(
// String.valueOf(dValue));
// cell.setCellValue(textValue);
// } else if (value instanceof Long) {
// long longValue = (Long) value;
// cell.setCellValue(longValue);
// }
if (value instanceof Boolean) {
boolean bValue = (Boolean) value;
textValue = "男";
if (!bValue) {
textValue ="女";
}
} else if (value instanceof Date) {
Date date = (Date) value;
SimpleDateFormat sdf = new SimpleDateFormat(pattern);
textValue = sdf.format(date);
} else if (value instanceof byte[]) {
// 有图片时，设置行高为60px;
row.setHeightInPoints(60);
// 设置图片所在列宽度为80px,注意这里单位的一个换算
sheet.setColumnWidth(i, (short) (35.7 * 80));
// sheet.autoSizeColumn(i);
byte[] bsValue = (byte[]) value;
HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0,
1023, 255, (short) 6, index, (short) 6, index);
anchor.setAnchorType(2);
patriarch.createPicture(anchor, workbook.addPicture(
bsValue, HSSFWorkbook.PICTURE_TYPE_JPEG));
} else{
//其它数据类型都当作字符串简单处理
textValue = value == null?"":value.toString();
}
//如果不是图片数据，就利用正则表达式判断textValue是否全部由数字组成
if(textValue!=null){
Pattern p = Pattern.compile("^//d+(//.//d+)?$");
Matcher matcher = p.matcher(textValue);
if(matcher.matches()){
//是数字当作double处理
cell.setCellValue(Double.parseDouble(textValue));
}else{
HSSFRichTextString richString = new HSSFRichTextString(textValue);
HSSFFont font3 = workbook.createFont();
font3.setColor(HSSFColor.BLUE.index);
richString.applyFont(font3);
cell.setCellValue(richString);
}
}
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchMethodException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (InvocationTargetException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
//清理资源
}
}
}
try {
workbook.write(out);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}