FusionCharts图表生成方式及实例-3D饼图
最近项目中报表数据的图表展示采用了FusionCharts，功能需求如下：
1.提供在线flash图表展示。
2.根据周期性报表的数据，生成静态html文件，提供用户订阅。
功能实现思路：
1.对于提供在线flash图表展示，主要参考了FusionCharts的文档示例,具体实现可见下面实例。注意一点：
因为生成xml文件会增加磁盘IO操作，会降低图表生成功能的整体性能，所以对于用户请求返回页面呈现chart的需求，采取不生成xml数据文件的方式。在default.jsp中包含PieData.jsp，由PieData.jsp生成数据流，在default.jsp中输出渲染为swf图表。
2.根据需求从DB中获取所需数据。
2.1生成data.xml数据文件.
2.2生成html文件，组装显示所需的文件，例如：FusionCharts.js,对应的swf等。
2.3生成需求规定的文件目录结构，将html及相关文件分别放到指定的位置。
由于FusionCharts的示例中太多的逻辑采用了jsp来获取或者生成，所以对它进行了简单的封装，目的是方便项目组其他人对FusionCharts的使用。
效果图：
示例:
1.FusionCharts图表展示
采用了jsp中生成data.xml的方式。
default.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@page import="org.apache.commons.logging.Log"%>
<%@page import="org.apache.commons.logging.LogFactory"%>
<%@page import="com.test.FusionChartUtil"%>
<%@page import="com.test.FusionChartsDTO"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ include file = "../Includes/FusionCharts.jsp" %>
<HTML>
<HEAD>
<TITLE>3D饼图</TITLE>
<link rel="stylesheet" type="text/css" href="<%=path%>/css/st/css.css" />
<link rel="stylesheet" type="text/css" href="<%=path%>/css/st/home.css" />
<SCRIPT LANGUAGE="Javascript" SRC="<%=basePath%>FusionCharts/FusionCharts.js"></SCRIPT>
<style type="text/css">
<!--
body {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
}
.text{
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
}
-->
</style>
</HEAD>
<BODY>
<CENTER>
<h2>查询表TAB_OMIN_ST_G_SDATAAREA_H</h2>
<%
Log logger = LogFactory.getLog(getClass());
String animate = (String)request.getAttribute("animate");
String dataPath = path +"/jsp/st/bs/DB_dataURL/PieData.jsp?animate="+ animate;
String swfPath = path +"/FusionCharts/Pie3D.swf";
logger.info("^^^^^^^^^^^^^^^^^^^^^^^^^ dataPath = "+ dataPath);
FusionChartsDTO fusionCharts = new FusionChartsDTO();
fusionCharts.setStrDataURL(dataPath);
fusionCharts.setAddNoCacheStr("false");
fusionCharts.setResponse(response);
fusionCharts.setSwfURL(swfPath);
fusionCharts.setDataURL("dataPath");
fusionCharts.setChartId("FactorySum");
fusionCharts.setChartWidth(600);
fusionCharts.setChartHeight(300);
fusionCharts.setDebugMode(false);
fusionCharts.setRegisterWithJS(false);
String chartCode = FusionChartUtil.genChart(fusionCharts);
out.print(chartCode);
out.print("<p><p>");
out.print((String)request.getAttribute("tableData"));
%>
<BR>
<BR>
</CENTER>
</BODY>
</HTML>
PieData.jsp
参考FusionCharts的jsp示例
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ page import="java.io.*"%>
<%@ page import="com.test.PieChartXmlDataProvider"%>
<%
String strXML="";
//Default.jsp has passed us a property animate. We request that.
String animateChart;
animateChart = request.getParameter("animate");
//Set default value of 1
if(null==animateChart||animateChart.equals("")){
animateChart = "1";
}
String strQuery = "select I_CITY_NAME,sum(I_FACTSTA_TIMES) as FACTSTA_TIMES from tab_omin_st_g_sdataarea_h group by I_CITY_NAME";
strXML = new PieChartXmlDataProvider().getXmlData(animateChart,strQuery,"dataURL");
//logger.info("^^^^^^^^^^^^^^^^^^^^^^^^^ pieData strXML = "+ strXML);
//Set Proper output content-type
//解决中文乱码问题
response.setContentType( "text/xml; charset=UTF-8" );
OutputStream outs = response.getOutputStream();
outs.write( new byte[]{(byte)0xEF, (byte)0xBB, (byte)0xBF} );
outs.write(strXML.getBytes("UTF-8"));
outs.flush();
outs.close();
outs = null;
response.flushBuffer();
out.clear();
out = pageContext.pushBody();
%>
PieChartXmlDataProvider.java
数据查询类,返回组装数据的<chart/>标签
public class PieChartXmlDataProvider extends AbsChartXmlDataProvider{
private static Logger logger = Logger.getLogger(PieChartXmlDataProvider.class);
public String getXmlData(String animateChart,String sql,String getDataType){
String cityName = "";
String rightRate = "";
StringBuffer dataBuffer = new StringBuffer("");
dataBuffer.append("<chart caption='example' subCaption='Sum I_RIGHT_RATE by city' pieSliceDepth='30' " +
"showBorder='1' formatNumberScale='0' numberSuffix=' Units'");
if(getDataType.equals(BsConstants.DATA_TYPE_DATA_URL)){
dataBuffer.append("animation=' " + animateChart + "'>");
}else if(getDataType.equals(BsConstants.DATA_TYPE_DATA_XML)){
dataBuffer.append(">");
}
try{
DAO dao = BF.getDAO();
List<Map> rsList = dao.executeQuery(sql,"查询数据");
for (Map map : rsList) {
cityName = (String)map.get("I_CITY_NAME");
rightRate = ((BigDecimal)map.get("FACTSTA_TIMES")).toString();
//logger.info("^^^^^^^^^^^^^^^^^^^^^^^^^ cityName = "+ cityName);
//logger.info("^^^^^^^^^^^^^^^^^^^^^^^^^ rightRate = "+ rightRate);
dataBuffer.append("<set label='" + cityName + "' value='" +rightRate+ "' />");
}
dataBuffer.append("</chart>");
logger.info("^^^^^^^^^^^^^^^^^^^^^^^^^ pieData strXML = "+ dataBuffer.toString());
}catch (Exception e) {
e.printStackTrace();
}
return dataBuffer.toString();
}
}
FusionChartUtil.java
生成html文件util类
import javax.servlet.http.HttpServletResponse;
public class FusionChartUtil {
/**
* 生成FusionCharts图
* @param fusionCharts
* @return
*/
public static String genChart(FusionChartsDTO fusionCharts) {
String strDataURL = fusionCharts.getStrDataURL() == null ? "" : fusionCharts.getStrDataURL();
String addNoCacheStr = fusionCharts.getAddNoCacheStr() == null ? "" : fusionCharts.getAddNoCacheStr();
String swfPath = fusionCharts.getSwfURL() == null ? "" : fusionCharts.getSwfURL();
String strXML = fusionCharts.getDataXML() == null ? "" : fusionCharts.getDataXML();
String chartId = fusionCharts.getChartId() == null ? "" : fusionCharts.getChartId();
int chartWidth = fusionCharts.getChartWidth() <= 0 ? 600 : fusionCharts.getChartWidth();
int chartHeight = fusionCharts.getChartHeight() <= 0 ? 300 : fusionCharts.getChartHeight();
String encodeDataURL = encodeDataURL(strDataURL,addNoCacheStr,fusionCharts.getResponse());
return createChart(swfPath,encodeDataURL,strXML,chartId,chartWidth,chartHeight,
fusionCharts.isDebugMode(),fusionCharts.isRegisterWithJS());
}
/**
* Encodes the dataURL before it's served to FusionCharts.
* If you have parameters in your dataURL, you necessarily need to encode it.
* @param strDataURL - dataURL to be fed to chart
* @param addNoCacheStr - Whether to add aditional string to URL to disable caching of data
* @return
*/
public static String encodeDataURL(String strDataURL, String addNoCacheStr, HttpServletResponse response) {
String encodedURL = strDataURL;
//Add the no-cache string if required
if (addNoCacheStr.equals("true")) {
/*We add ?FCCurrTime=xxyyzz
If the dataURL already contains a ?, we add &FCCurrTime=xxyyzz
We send the date separated with '_', instead of the usual ':' as FusionCharts cannot handle : in URLs
*/
java.util.Calendar nowCal = java.util.Calendar.getInstance();
java.util.Date now = nowCal.getTime();
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(
"MM/dd/yyyy HH_mm_ss a");
String strNow = sdf.format(now);
if (strDataURL.indexOf("?") > 0) {
encodedURL = strDataURL + "&FCCurrTime=" + strNow;
} else {
strDataURL = strDataURL + "?FCCurrTime=" + strNow;
}
encodedURL = response.encodeURL(strDataURL);
}
return encodedURL;
}
/**
* Creates the Chart HTML+Javascript to create the FusionCharts object with the given parameters.
* This method uses JavaScript to overcome the IE browser problem with SWF wherein you have to 'Click to activate' the control
* @param chartSWF - SWF File Name (and Path) of the chart which you intend to plot
* @param strURL - If you intend to use dataURL method for this chart, pass the URL as this parameter. Else, set it to "" (in case of dataXML method)
* @param strXML - If you intend to use dataXML method for this chart, pass the XML data as this parameter. Else, set it to "" (in case of dataURL
method)
* @param chartId - Id for the chart, using which it will be recognized in the HTML page. Each chart on the page needs to have a unique Id.
* @param chartWidth - Intended width for the chart (in pixels)
* @param chartHeight - Intended height for the chart (in pixels)
* @param debugMode - Whether to start the chart in debug mode
* @param registerWithJS - Whether to ask chart to register itself with JavaScript
*/
public static String createChart(String chartSWF, String strURL, String strXML,
String chartId, int chartWidth, int chartHeight, boolean debugMode,
boolean registerWithJS) {
StringBuffer strBuf = new StringBuffer();
/*
First we create a new DIV for each chart. We specify the name of DIV as "chartId"Div.
DIV names are case-sensitive.
*/
strBuf.append("<!--START Script Block for Chart -->\n");
strBuf.append("\t\t<div id='" + chartId + "Div' align='center'>\n");
strBuf.append("\t\t\t\tChart.\n");
/*The above text "Chart" is shown to users before the chart has started loading
(if there is a lag in relaying SWF from server). This text is also shown to users
who do not have Flash Player installed. You can configure it as per your needs.*/
strBuf.append("\t\t</div>\n");
/*Now, we render the chart using FusionCharts Class. Each chart's instance (JavaScript) Id
is named as chart_"chartId".*/
strBuf.append("\t\t<script type='text/javascript'>\n");
//Instantiate the Chart
Boolean registerWithJSBool = new Boolean(registerWithJS);
Boolean debugModeBool = new Boolean(debugMode);
int regWithJSInt = boolToNum(registerWithJSBool);
int debugModeInt = boolToNum(debugModeBool);
strBuf.append("\t\t\t\tvar chart_" + chartId + " = new FusionCharts('"
+ chartSWF + "', '" + chartId + "', '" + chartWidth + "', '"
+ chartHeight + "', '" + debugModeInt + "', '" + regWithJSInt
+ "');\n");
//Check whether we've to provide data using dataXML method or dataURL method
if (strXML.equals("")) {
strBuf.append("\t\t\t\t//Set the dataURL of the chart\n");
strBuf.append("\t\t\t\tchart_" + chartId + ".setDataURL(\"" + strURL
+ "\");\n");
} else {
strBuf.append("\t\t\t\t//Provide entire XML data using dataXML method\n");
strBuf.append("\t\t\t\tchart_" + chartId + ".setDataXML(\"" + strXML
+ "\");\n");
}
strBuf.append("\t\t\t\t//Finally, render the chart.\n");
strBuf.append("\t\t\t\tchart_" + chartId + ".render(\"" + chartId + "Div\");\n");
strBuf.append("\t\t</script>\n");
strBuf.append("\t\t<!--END Script Block for Chart-->\n");
return strBuf.substring(0);
}
/**
* Creates the Chart HTML to embed the swf object with the given parameters
* @param chartSWF - SWF File Name (and Path) of the chart which you intend to plot
* @param strURL - If you intend to use dataURL method for this chart, pass the URL as this parameter. Else, set it to "" (in case of dataXML method)
* @param strXML - If you intend to use dataXML method for this chart, pass the XML data as this parameter. Else, set it to "" (in case of dataURL
method)
* @param chartId - Id for the chart, using which it will be recognized in the HTML page. Each chart on the page needs to have a unique Id.
* @param chartWidth - Intended width for the chart (in pixels)
* @param chartHeight - Intended height for the chart (in pixels)
* @param debugMode - Whether to start the chart in debug mode
*/
public String createChartHTML(String chartSWF, String strURL,
String strXML, String chartId, int chartWidth, int chartHeight,
boolean debugMode) {
/*Generate the FlashVars string based on whether dataURL has been provided
or dataXML.*/
String strFlashVars = "";
Boolean debugModeBool = new Boolean(debugMode);
if (strXML.equals("")) {
//DataURL Mode
strFlashVars = "chartWidth=" + chartWidth + "&chartHeight="
+ chartHeight + "&debugMode=" + boolToNum(debugModeBool)
+ "&dataURL=" + strURL + "";
} else {
//DataXML Mode
strFlashVars = "chartWidth=" + chartWidth + "&chartHeight="
+ chartHeight + "&debugMode=" + boolToNum(debugModeBool)
+ "&dataXML=" + strXML + "";
}
StringBuffer strBuf = new StringBuffer();
// START Code Block for Chart
strBuf.append("\t\t<!--START Code Block for Chart-->\n");
strBuf
.append("\t\t\t\t<object classid='clsid:d27cdb6e-ae6d-11cf-96b8-444553540000'
codebase='http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0' width='"
+ chartWidth
+ "' height='"
+ chartHeight
+ "' id='"
+ chartId + "'>\n");
strBuf.append("\t\t\t\t <param name='allowScriptAccess' value='always' />\n");
strBuf.append("\t\t\t\t <param name='movie' value='" + chartSWF + "'/>\n");
strBuf.append("\t\t\t\t<param name='FlashVars' value=\"" + strFlashVars
+ "\" />\n");
strBuf.append("\t\t\t\t <param name='quality' value='high' />\n");
strBuf
.append("\t\t\t\t<embed src='"
+ chartSWF
+ "' FlashVars=\""
+ strFlashVars
+ "\" quality='high' width='"
+ chartWidth
+ "' height='"
+ chartHeight
+ "' name='"
+ chartId
+ "' allowScriptAccess='always' type='application/x-shockwave-flash'
pluginspage='http://www.macromedia.com/go/getflashplayer' />\n");
strBuf.append("\t\t</object>\n");
// END Code Block for Chart
strBuf.append("\t\t<!--END Code Block for Chart-->\n");
return strBuf.substring(0);
}
/**
* Converts boolean to corresponding integer
* @param bool - The boolean that is to be converted to number
* @return int - 0 or 1 representing the given boolean value
*/
public static int boolToNum(Boolean bool) {
int num = 0;
if (bool.booleanValue()) {
num = 1;
}
return num;
}
}
FusionCharts中文处理：
jsp方式：
response.setContentType( "text/xml; charset=UTF-8" );
OutputStream outs = response.getOutputStream();
outs.write( new byte[]{(byte)0xEF, (byte)0xBB, (byte)0xBF} );//UTF-8 BOM
outs.write(strXML.getBytes("UTF-8"));//数据
outs.flush();
outs.close();
outs = null;
response.flushBuffer();
out.clear();
out = pageContext.pushBody();
java类生成xml数据文件
FileOutputStream out = new FileOutputStream(file,true);
out.write(new byte[]{(byte)0xEF, (byte)0xBB, (byte)0xBF});//UTF-8 BOM
out.write(content.getBytes(charset));//数据
out.close();