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yahier:
我想要调用的对象是一个list中的一个item,怎么调用呢
超链接a的href和onclick传递当前对象的不同之处 -
目步:
...
Ext DataView tpl
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标题 | 标签 | 来源 | |
jsp导出excel异常 | jsp 导出 | JSP导出报错:getOutputStream() has already been called for this response | |
response.reset(); response.setContentType("application/vnd.ms-excel; charset=utf-8"); response.setHeader("Content-Disposition", "attachment;Filename=ResultReport.xls"); OutputStream outputStream = null; try { outputStream = response.getOutputStream(); HSSFWorkbook hssfWorkbook = GenDataUtil.genData(listData, listMetaObjectProperty); hssfWorkbook.write(outputStream); outputStream.flush(); outputStream.close(); } catch (Exception e) { System.out.print("导出Excel发生错误,信息:" + e); } finally { response.flushBuffer(); out.clear(); out = pageContext.pushBody(); outputStream = null; listData = null; listMetaObjectProperty = null; } |
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java,根据日期获取星期几 | java,date | JAVA日期操作 | |
public static final String FormatDayToChinaTime24H = "yyyy年MM月dd日"; /** * 将yyyy-mm-dd转为yyyy-m-d * * @param day * 距离现在之后的天数 * @return Date:距离现在之后的若干天的日期; */ public static String getYMDDays(String day){ String dayTime=day; if(String.valueOf(day.charAt(8)).equals("0"))dayTime=day.substring(0,8)+day.substring(9); if(String.valueOf(day.charAt(5)).equals("0"))dayTime=dayTime.substring(0,5)+dayTime.substring(6); return dayTime; } /** * 两个日期间的天数 * * @param days * 距离现在之后的天数 * @return Date:距离现在之后的若干天的日期; */ public static int getIntervalDays(Date startday,Date endday){ if(startday.after(endday)){ Date cal=startday; startday=endday; endday=cal; } long sl=startday.getTime(); long el=endday.getTime(); long ei=el-sl; return (int)(ei/(1000*60*60*24)); } /** * 取得距离现在多少天(距离现在之后的若干天) * * @param days * 距离现在之后的天数 * @return Date:距离现在之后的若干天的日期; */ public static Date getDate(int days) { Date dateresult = new Date(); try { DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.FULL); // Create our Gregorian Calendar. GregorianCalendar cal = new GregorianCalendar(); // Set the date and time of our calendar // to the system&s date and time cal.setTime(new Date()); cal.add(GregorianCalendar.DAY_OF_MONTH, days); dateresult = cal.getTime(); } catch (Exception e) { System.out.println("exception" + e.toString()); } return dateresult; } /** * @根据当前日期计算n天后的日期 * @return String */ public static Date afterNDay(Date date, int n) { Calendar c = Calendar.getInstance(); DateFormat df = new SimpleDateFormat("yyyy-MM-dd"); c.setTime(date); c.add(Calendar.DATE, n); Date d2 = c.getTime(); // String s=df.format(d2); return d2; } /** * @根据当前日期计算n天后的日期 * @return String */ public static String afterDay(Date date, int n) { Calendar c = Calendar.getInstance(); DateFormat df = new SimpleDateFormat("yyyy-MM-dd"); // String s=df.format(d2); return df.toString(); } /** * @获取当前时间是星期几,“星期日” * @return String */ public static String getDayInWeek() { Date today = new Date(System.currentTimeMillis()); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("E"); return simpleDateFormat.format(today); } /** * * @跟具字符串时间来获得星期几,(SimpleDateFormat("yyyy-MM-dd")) * @return */ public static String getDayInWeek(String mydatestring) { SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); Date date = null; String showDate =""; try { date = dateFormat.parse(mydatestring); } catch (ParseException e) { } Calendar cd = Calendar.getInstance(); cd.setTime(date); int mydate = cd.get(Calendar.DAY_OF_WEEK); switch (mydate) { case 1: showDate = "星期日"; break; case 2: showDate = "星期一"; break; case 3: showDate = "星期二"; break; case 4: showDate = "星期三"; break; case 5: showDate = "星期四"; break; case 6: showDate = "星期五"; break; default: showDate = "星期六"; break; } return showDate; } /** * @根据日期时间,获取当前时间是星期几,“星期日” * @return String */ public static String getDayInWeek(Date date) { if (date == null) return ""; SimpleDateFormat simpleDateFormat = new SimpleDateFormat("E"); return simpleDateFormat.format(date); } /** * @获取当前时间在这个月的天 * @return String */ public static String getDayInMonth() { Date today = new Date(System.currentTimeMillis()); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("d"); return simpleDateFormat.format(today); } /** * @根据日期,获取当前时间在这个月的天 * @return String */ public static String getDayInMonth(Date date) { if (date == null) return ""; SimpleDateFormat simpleDateFormat = new SimpleDateFormat("d"); return simpleDateFormat.format(date); } /** * @根据在本年当中,获取月份格式"M" * @return String */ public static String getMonthInYear() { Date today = new Date(System.currentTimeMillis()); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("M"); return simpleDateFormat.format(today); } /** * @根据在本年当中,获取月份格式"MM" * @return String */ public static String getMonthInYear2() { java.util.Date today = new Date(System.currentTimeMillis()); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MM"); return simpleDateFormat.format(today); } /** * @根据日期,获取月份格式"MM" * @return String */ public static String getMonthInYear2(String formatDate) { java.util.Date day = getDate(formatDate, "yyyy-MM-dd"); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MM"); return simpleDateFormat.format(day); } /** * @获取当前时间的年,格式"yyyy" * @return String */ public static String getYear() { java.util.Date today = new java.util.Date(System.currentTimeMillis()); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy"); return simpleDateFormat.format(today); } /** * @根据时间,获取年,格式"yyyy" * @return String */ public static String getYear(String formatDate) { java.util.Date day = getDate(formatDate, "yyyy-MM-dd"); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy"); return simpleDateFormat.format(day); } /** * @根据日期以及日期格式,获取日期字符串表达 * @return String */ public static String getFormatDate(java.util.Date thisDate, String format) { if (thisDate == null) return ""; SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format); return simpleDateFormat.format(thisDate); } /** * @根据日期以及日期格式,获取日期 * @return String */ public static java.util.Date getDate(String date, String format) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format); try { return simpleDateFormat.parse(date); } catch (ParseException ex) { return null; } } /** * @返回系统当前月的第一天所表示的日期 * @param monthDate * Date * @return Date */ public static java.util.Date getFirstDateMonth() { try { String date_s = getYear() + "-" + getMonthInYear2() + "-01"; return getDate(date_s, "yyyy-MM-dd"); } catch (Exception er) { er.printStackTrace(); } return null; } /** * @返回系统当前月的第一天所表示的日期 * @param monthDate * Date * @return Date */ public static java.util.Date getFirstDateMonth(String formatDate) { try { String date_s = getYear(formatDate) + "-" + getMonthInYear2(formatDate) + "-01"; return getDate(date_s, "yyyy-MM-dd"); } catch (Exception er) { er.printStackTrace(); } return null; } /** * @返回系统当前月的第一天所表示的日期 * @param monthDate * Date * @return Date */ public static String getFirstDateMonthToString() { try { return getYear() + "-" + getMonthInYear2() + "-01"; } catch (Exception er) { er.printStackTrace(); } return null; } /** * @返回系统当前月的第一天所表示的日期 * @param monthDate * Date * @return Date */ public static String getFirstDateMonthToString(String formatDate) { try { return getYear(formatDate) + "-" + getMonthInYear2(formatDate) + "-01"; } catch (Exception er) { er.printStackTrace(); } return null; } /** * @返回系统当前月的最后一天所表示的日期 * @return Date */ public static java.util.Date getLastDateMonth() { try { int lastday = getDaySumInTheMonth(); String date_s; if (lastday < 10) date_s = getYear() + "-" + getMonthInYear2() + "-0" + lastday; else date_s = getYear() + "-" + getMonthInYear2() + "-" + lastday; return getDate(date_s, "yyyy-MM-d"); } catch (Exception er) { er.printStackTrace(); } return null; } /** * @返回系统当前月的最后一天所表示的日期 * @return Date */ public static String getLastDateMonthToString(String formatDate) { try { int lastday = getDaySumInTheMonth(formatDate); if (lastday < 10) return getYear(formatDate) + "-" + getMonthInYear2(formatDate) + "-0" + lastday; else return getYear(formatDate) + "-" + getMonthInYear2(formatDate) + "-" + lastday; } catch (Exception er) { er.printStackTrace(); } return null; } /** * @根据时间,返回最后一天所表示的日期 * @param formatDate * String * @return Date */ public static java.util.Date getLastDateMonth(String formatDate) { try { int lastday = getDaySumInTheMonth(formatDate); String month = getMonthInYear2(formatDate); String year = getYear(formatDate); String date_s; if (lastday < 10) date_s = year + "-" + month + "-0" + lastday; else date_s = year + "-" + month + "-" + lastday; System.out.println(date_s); return getDate(date_s, "yyyy-MM-d"); } catch (Exception er) { er.printStackTrace(); } return null; } /** * @获得这个月的天数 * @return int */ public static int getDaySumInTheMonth() { String month = DayFormat.getMonthInYear(); if (month.equalsIgnoreCase("12")) return 31; int mon = Integer.parseInt(month); java.util.Date date = DayFormat.getDate(DayFormat.getYear() + "-" + (mon + 1) + "-" + "1", "yyyy-MM-d"); Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.DATE, -1); return Integer.parseInt(new SimpleDateFormat("dd") .format(cal.getTime())); } /** * @获得所在日期月份的天数 * @return int */ public static int getDaySumInTheMonth(java.util.Date date) { String month = new SimpleDateFormat("MM").format(date); if (month.equalsIgnoreCase("12")) return 31; int mon = Integer.parseInt(month); java.util.Date date2 = DayFormat.getDate(new SimpleDateFormat("yyyy") .format(date) + "-" + (mon + 1) + "-" + "1", "yyyy-MM-d"); Calendar cal = Calendar.getInstance(); cal.setTime(date2); cal.add(Calendar.DATE, -1); return Integer.parseInt(new SimpleDateFormat("dd") .format(cal.getTime())); } /** * @获得所在日期月份的天数 * @return int */ public static int getDaySumInTheMonth(String formatDate) { String month = DayFormat.getMonthInYear2(formatDate); if (month.equalsIgnoreCase("12")) return 31; int mon = Integer.parseInt(month); java.util.Date date = DayFormat.getDate(DayFormat.getYear(formatDate) + "-" + (mon + 1) + "-" + "1", "yyyy-MM-d"); Calendar cal = Calendar.getInstance(); cal.setTime(date); cal.add(Calendar.DATE, -1); return Integer.parseInt(new SimpleDateFormat("dd") .format(cal.getTime())); } /** * @把日期格式转换成字符串格式,格式为'yyyy-MM-dd' * @param date * Date * @return String */ public static String getFormatDate(java.util.Date date) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return simpleDateFormat.format(date); } public final static String FormatDay1 = "yyyy-MM-dd"; public final static String FormatDay2 = "yyyy年MM月dd日"; public final static String FormatDay3 = "yyyy年MM月dd日 HH:mm:ss"; public final static String FormatDay4 = "yyyy-MM-dd HH:mm"; public static final String Format24Datetime1 = "yyyy-MM-dd HH:mm:ss";// 24 public static final String Format12Datetime1 = "yyyy-MM-dd hh:mm:ss";// 12 /** * 获取当前时间 * * @return */ public static String getToday() { return getToday(FormatDay1); } public static java.sql.Timestamp getCurrentTimestamp() { return new Timestamp(System.currentTimeMillis()); } public static java.util.Date getCurrentUtilDate() { return new java.util.Date(System.currentTimeMillis()); } public static String getToday(String formatDay) { java.util.Date today = new java.util.Date(); SimpleDateFormat df = new SimpleDateFormat(formatDay); return df.format(today).toString(); } public static String get24DateTime() { return get24DateTime(Format24Datetime1); } public static String get24DateTime(String format24DateTime) { java.util.Date today = new java.util.Date(); SimpleDateFormat df = new SimpleDateFormat(format24DateTime); return df.format(today).toString(); } public static String get12DateTime() { return get12DateTime(Format12Datetime1); } public static String get12DateTime(String format12DateTime) { java.util.Date today = new java.util.Date(); SimpleDateFormat df = new SimpleDateFormat(format12DateTime); return df.format(today).toString(); } public static String get24DateTime(Timestamp timestamp) { SimpleDateFormat df = new SimpleDateFormat(Format24Datetime1); return df.format(timestamp).toString(); } public static String get12DateTime(Timestamp timestamp) { SimpleDateFormat df = new SimpleDateFormat(Format12Datetime1); return df.format(timestamp).toString(); } // STRING到日期 public static java.sql.Date stringToDate(String dateStr) { return java.sql.Date.valueOf(dateStr); } public static java.sql.Timestamp stringToTimestamp(String timestampStr) { if (timestampStr == null || timestampStr.length() < 1) return null; return java.sql.Timestamp.valueOf(timestampStr); } public static java.sql.Timestamp stringToTimestamp2(String dateStr) { if (dateStr == null || dateStr.length() < 1) return null; return java.sql.Timestamp.valueOf(dateStr + " 00:00:00.000000000"); } public static java.sql.Timestamp stringToTimestamp3(String dateStr) { if (dateStr == null || dateStr.length() < 1) return null; return java.sql.Timestamp.valueOf(dateStr + ":00.000000000"); } public static java.sql.Time stringToTime(String timeStr) { return java.sql.Time.valueOf(timeStr); } // 日期到STRING public static String dateToString(java.sql.Date datee) { return datee.toString(); } public static String timestampToString(java.sql.Timestamp timestampe) { return timestampe.toString(); } public static String timestampToStringForFormat(Timestamp timestamp, String format) { if (timestamp == null) return ""; SimpleDateFormat df = new SimpleDateFormat(format); return df.format(timestamp).toString(); } public static String getTimestampToDateTime15Len( java.sql.Timestamp timestampe) { if (timestampe == null || timestampe.toString().length() < 1) return ""; return timestampe.toString().substring(0, 16); } public static String timeToString(java.sql.Time timee) { return timee.toString(); } public static java.sql.Timestamp StringToTimestamp(String dateString) throws ParseException { java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat( FormatDay1); formatter.setLenient(false); return new java.sql.Timestamp((formatter.parse(dateString).getTime())); } public static java.sql.Timestamp StringToTimestampAll(String dateString) throws ParseException { return java.sql.Timestamp.valueOf(dateString); } //获得周日的日期 public static String getSunday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.SUNDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } //获得周一的日期 public static String getMonday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.MONDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } //获得周二的日期 public static String getTuesday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.TUESDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } //获得周三的日期 public static String getWednesday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.WEDNESDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } //获得周四的日期 public static String getThursday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.THURSDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } //获得周五的日期 public static String getFriday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.FRIDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } //获得周六的日期 public static String getSaturday(Date date){ Calendar c = Calendar.getInstance(); c.setTime(date); c.set(Calendar.DAY_OF_WEEK,Calendar.SATURDAY); return new SimpleDateFormat("yyyy-MM-dd").format(c.getTime()); } public static void main(String args[]) { try { String d = "2007-05-15 19:23:48.703"; System.out.println(d); java.sql.Timestamp timestampe = java.sql.Timestamp.valueOf(d); System.out.println(timestampe.toString()); } catch (Exception er) { er.printStackTrace(); } } |
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Extjs如何实现文件的下载 | Extjs如何实现文件的下载 | ||
if (!Ext.fly('test')) { var frm = document.createElement('form'); frm.id = 'test'; frm.name = id; frm.style.display = 'none'; document.body.appendChild(frm); } Ext.Ajax.request({ url:"yourURL", form: Ext.fly('test'), method: 'POST', isUpload: true, params:{ aa: 'aa' } }); |
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Extjs如何实现文件的下载 | Extjs如何实现文件的下载 | ||
Ext.Ajax.request({ url:'getPath.action', success:function(res){ var obj = Ext.decode(res.responseText); //console.log(obj);//可以到火狐的firebug下面看看obj里面的结构 //加入getPath返回的json为{'path':'upload/abc.jpg'} window.location.href = obj.path;//这样就可以弹出下载对话框了 } }); |
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可编辑GridPanel | 增加、删除列 | ||
1.继承Ext.grid.EditorGridPanel 2.定义列,一列为例: var cm = new Ext.grid.ColumnModel ([ new Ext.grid.RowNumberer ({ header : '序号', width : 40 }), ]); 3.增加一行,删除一行 addRecord : function() { var record = this.getStore().recordType; var p = new record ({ NUM : '' }); this.stopEditing(); this.getStore().insert(this.getStore().getCount(), p); this.startEditing(this.getStore().getCount()-1, 1); }, deleteRecord : function() //删除一条记录的function { var s = this.getSelectionModel().getSelections(); for(var i = 0, r; r = s[i]; i++) { this.getStore().remove(s); } } |