Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ÓÃJFreeChartÔöÇ¿JSP±¨±íµÄÓû§ÌåÑé(3)

ËÄ£®ÇúÏßͼ
½Ó×ÅÎÒÃÇÀ´½éÉÜÇúÏßͼµÄʹÓá£ÔÚ±ÊÕßÈÕ³£µÄ¿ª·¢¹¤×÷ÖУ¬ÇúÏßͼÓõÃ×î¶à£¬Ëü¿ÉÒÔÓÃÀ´»æÖÆÇ÷ÊÆÍ¼¡¢Í³¼Æ·ÖÎöµÈ¡£Ê×ÏÈÎÒÃÇÔÚWebRootϽ¨Á¢Ò»¸ölineĿ¼£¬ÓÃÀ´´æ·ÅÇúÏßͼʵÀýµÄjspÒ³Ãæ¡£ÎÒÃÇÔÚ¸ÃĿ¼Ï½¨Á¢sample1.jspÒ³ÃæÀ´×öÒ»¸ö¼òµ¥µÄÇúÏßͼµÄÀý×Ó¡£ÔÚ¿ªÊ¼±àÂëǰ£¬ÈÃÎÒÃÇÀ´¿´¿´Óë»­ÇúÏßͼÃÜÇÐÏà¹ØµÄ¼¸¸öÀࣺ
1£© TimeSeriesCollection
ÇúÏßÊý¾ÝµÄ¼¯ºÏ¡£
2£© TimeSeries
ÇúÏßÐÅÏ¢ÐòÁС£
3£© ChartFactory
¿ÉÒÔÀûÓøÃÀàµÄcreateTimeSeriesChart·½·¨À´´´½¨ÇúÏßµÄJFreeChart¶ÔÏó¡£
ÔÚÏÂÀýÖУ¬ÎÒÃÇÏÔʾ°¢ÃÛ¹ûµÄblogÔÚ2007Äê¶È¸÷Ô·ݵķÃÎÊÁ¿Çé¿ö£¬Ð޸ĺóµÄsample1.jspµÄÄÚÈÝÈçÏ£º
<%@ page contentType="text/html;charset=GBK"%>
<%@ page import = "org.jfree.chart.ChartFactory,
              org.jfree.chart.JFreeChart,
              org.jfree.chart.servlet.ServletUtilities,
              org.jfree.chart.title.TextTitle,
              org.jfree.data.time.TimeSeries,
              org.jfree.data.time.Month,
              org.jfree.data.time.TimeSeriesCollection,
              java.awt.Font"%>
<%
//·ÃÎÊÁ¿Í³¼ÆÊ±¼äÏß
TimeSeries timeSeries = new TimeSeries("°¢ÃÛ¹ûblog·ÃÎÊÁ¿Í³¼Æ", Month.class);
//ʱ¼äÇúÏßÊý¾Ý¼¯ºÏ
TimeSeriesCollection lineDataset = new TimeSeriesCollection();
 
//¹¹ÔìÊý¾Ý¼¯ºÏ
timeSeries.add(new Month(1, 2007), 11200);
timeSeries.add(new Month(2, 2007), 9000);
timeSeries.add(new Month(3, 2007), 6200);
timeSeries.add(new Month(4, 2007), 8200);
timeSeries.add(new Month(5, 2007), 8200);
timeSeries.add(new Month(6, 2007), 12200);
timeSeries.add(new Month(7, 2007), 13200);
timeSeries.add(new Month


Ïà¹ØÎĵµ£º

Jsp ELÓï·¨

Jsp ELÓï·¨
Àý£º
${sessionScope.user.sex}
ËùÓÐEL¶¼ÊÇÒÔ ${ ΪÆðʼ¡¢ÒÔ} Ϊ½áβµÄ¡£
ÉÏÊöEL·¶ÀýµÄÒâ˼ÊÇ£º´ÓSessionÈ¡µÃÓû§µÄÐÔ±ð¡£Èç¹ûʹÓÃ֮ǰJSP´úÂëµÄд·¨ÈçÏ£º
<%
User user = (User)session.getAttribute(”user”);
String sex = user.getSex( );
%>
Á½ÕßÏà±È½Ï֮ϣ¬¿ÉÒÔ·¢ÏÖELµÄÓï·¨± ......

jsp + servlet +jxl ʵÏÖ export excel

 Ð´Ò»¸öjspÎļþ,È»ºó°ÑÒª´ÓÊý¾Ý¿âÈ¡³öÊý¾ÝµÄsqlÓï¾ä´«µ½servlet ÖÐ.
java ´úÂë:
package exportExcel;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLExcep ......

JSP/ServletÖнâÎöÂÒÂëÂÒÂëÎÊÌâ

 ÔÚJSP/Servlet ÖÐÖ÷ÒªÓÐÒÔϼ¸¸öµØ·½¿ÉÒÔÉèÖñàÂ룬pageEncoding="UTF-8"¡¢contentType="text/html;charset=UTF -8"¡¢request.setCharacterEncoding("UTF-8")ºÍresponse.setCharacterEncoding ("UTF-8")£¬ÆäÖÐǰÁ½¸öÖ»ÄÜÓÃÓÚJSPÖУ¬¶øºóÁ½¸ö¿ÉÒÔÓÃÓÚJSPºÍServletÖС£
1¡¢pageEncoding="UTF-8"µÄ×÷ÓÃÊÇÉèÖÃJSP±àÒë³É ......

jsp×Ô¶¨ÒåǶÌ×±êÇ©

 1.¶¨Òå±êǩʵÏÖÀà
ParentTag.java
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.TagSupport;
public c ......

ÓÃJFreeChartÔöÇ¿JSP±¨±íµÄÓû§ÌåÑé(1)

JFreeChartÊÇÒ»×鹦ÄÜÇ¿´ó¡¢Áé»îÒ×ÓõÄJava»æÍ¼API£¬Ê¹ÓÃËü¿ÉÒÔÉú³É¶àÖÖͨÓÃÐԵı¨±í£¬°üÀ¨Öù״ͼ¡¢±ýͼ¡¢ÇúÏßͼ¡¢¸ÊÌØÍ¼µÈ¡£ËüÄܹ»ÓÃÔÚSwingºÍWebµÈÖÐÖÆ×÷×Ô¶¨ÒåµÄͼ±í»ò±¨±í£¬²¢Çҵõ½¹ã·ºµÄÓ¦Óᣱ¾ÎĽ«Í¨¹ýÒýÁì¶ÁÕßѧϰÔÚJFreeChartÖбýͼ¡¢Öù״ͼºÍÇúÏßͼµÄ½ø½×Ó¦Óã¬À´´ïµ½ÊìÁ·Ê¹ÓÃJFreeChartµÄÄ¿µÄ¡£
Ò»£® &nb ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ