ofc2使用笔记
分在jsp页面中使用与flex页面显示两部分：
一： JSP页面
记得将open-flash-chart.swf放在工程的根目录下。
二、 Flex界面
导入xxx.swc文件,并在mxml中进行声明如 xmlns:ofc="*" 然后在页面中如此使用：
<ofc:Chart chartData="{json格式}" .../>
xxx.swc稍后会上传... ...
三： 后台代码（Servlet部分）：
LineChartServlet
PieChartServlet:
BarChartServlet:
BarChart2Servlet:
问题： lineChart上设置的toolTip无效
pieChart的tooltip在flex界面显示时离图本身距离过远（若你将pieChart的父组件的x与y都设为0则不会出现这问题，但这没实际意义）
一： JSP页面
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<html>
<head>
<script type="text/javascript" src="js/swfobject.js"></script>
<script type="text/javascript" src="js/json2.js"></script>
<script type="text/javascript">
//<![CDATA[
swfobject.embedSWF(
"open-flash-chart.swf",
"my_chart",
"40%",
"40%",
"9.0.0",
"expressInstall.swf",
{"data-file":"<%=request.getContextPath()%>/LineChartServlet"},
{wmode:"transparent"});
//]]>
</script>
</head>
<body>
<p>Hello World</p>
<div id="my_chart"></div>
</body>
</html>
记得将open-flash-chart.swf放在工程的根目录下。
二、 Flex界面
导入xxx.swc文件,并在mxml中进行声明如 xmlns:ofc="*" 然后在页面中如此使用：
<ofc:Chart chartData="{json格式}" .../>
xxx.swc稍后会上传... ...
三： 后台代码（Servlet部分）：
LineChartServlet
package mydashboard;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jofc2.model.Chart;
import jofc2.model.Text;
import jofc2.model.axis.Label;
import jofc2.model.axis.XAxis;
import jofc2.model.axis.YAxis;
import jofc2.model.elements.Legend;
import jofc2.model.elements.LineChart;
import jofc2.model.elements.StackedBarChart;
import jofc2.model.elements.Tooltip;
public class LineChartServlet extends HttpServlet {
// Initialize global variables
public void init() throws ServletException {
// TODO Auto-generated method stub
}
// Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try{
LineChart lineChart = new LineChart();
lineChart.setFontSize(15);// 设置字体
lineChart.setTooltip("#val#%");//设置鼠标移到点上显示的内容
LineChart.Dot dot1 = new LineChart.Dot(70);//按照顺序设置各个点的值
LineChart.Dot dot2 = new LineChart.Dot(85);
LineChart.Dot dot3 = new LineChart.Dot(44);
LineChart.Dot dot4 = new LineChart.Dot(67);
LineChart.Dot dot5 = new LineChart.Dot(90);
LineChart.Dot dot6 = new LineChart.Dot(64);
LineChart.Dot dot7 = new LineChart.Dot(28);
LineChart.Dot dot8 = new LineChart.Dot(99);
lineChart.addDots(dot1);//按照顺序把点加入到图形中
lineChart.addDots(dot2);
lineChart.addDots(dot3);
lineChart.addDots(dot4);
lineChart.addDots(dot5);
lineChart.addDots(dot6);
lineChart.addDots(dot7);
lineChart.addDots(dot8);
lineChart.setColour("0x336699");
//
//内存使用曲线
// LineChart lineChartMem = new LineChart();
// lineChartMem.setFontSize(15);
// lineChartMem.setTooltip("#var#%");
// LineChart.Dot dotMem1 = new LineChart.Dot(30);
// LineChart.Dot dotMem2 = new LineChart.Dot(34);
// LineChart.Dot dotMem3 = new LineChart.Dot(52);
// LineChart.Dot dotMem4 = new LineChart.Dot(35);
// LineChart.Dot dotMem5 = new LineChart.Dot(58);
// LineChart.Dot dotMem6 = new LineChart.Dot(69);
// LineChart.Dot dotMem7 = new LineChart.Dot(43);
// LineChart.Dot dotMem8 = new LineChart.Dot(54);
//
// lineChartMem.addDots(dotMem1);
// lineChartMem.addDots(dotMem2);
// lineChartMem.addDots(dotMem3);
// lineChartMem.addDots(dotMem4);
// lineChartMem.addDots(dotMem5);
// lineChartMem.addDots(dotMem6);
// lineChartMem.addDots(dotMem7);
// lineChartMem.addDots(dotMem8);
//
// lineChartMem.setColour("#D54C78");
//
// //磁盘使用曲线
// LineChart lineChartDisk = new LineChart();
// lineChartMem.setFontSize(15);
// lineChartMem.setTooltip("这是内存sdsdfsdd");
// LineChart.Dot dotDisk1 = new LineChart.Dot(42);
// LineChart.Dot dotDisk2 = new LineChart.Dot(67);
// LineChart.Dot dotDisk3 = new LineChart.Dot(83);
// LineChart.Dot dotDisk4 = new LineChart.Dot(94);
// LineChart.Dot dotDisk5 = new LineChart.Dot(82);
// LineChart.Dot dotDisk6 = new LineChart.Dot(55);
// LineChart.Dot dotDisk7 = new LineChart.Dot(63);
// LineChart.Dot dotDisk8 = new LineChart.Dot(54);
//
// lineChartDisk.addDots(dotDisk1);
// lineChartDisk.addDots(dotDisk2);
// lineChartDisk.addDots(dotDisk3);
// lineChartDisk.addDots(dotDisk4);
// lineChartDisk.addDots(dotDisk5);
// lineChartDisk.addDots(dotDisk6);
// lineChartDisk.addDots(dotDisk7);
// lineChartDisk.addDots(dotDisk8);
//
// lineChartDisk.setColour("#3334AD");
// XAxis x = new XAxis(); // X 轴
//
// x.addLabels("11:05"); //每5分钟轮询一次
// x.addLabels("11:10");
// x.addLabels("11:15");
// x.addLabels("11:20");
// x.addLabels("11:25");
// x.addLabels("11:30");
// x.addLabels("11:35");
// x.addLabels("11:40");
// Label label = new Label();
// label.setText("时间");
// x.addLabels(label);
//x.setColour("0x000000");
double max = 100.0; // //Y 轴最大值
YAxis ycpu = new YAxis(); //y 轴 (CPU)
ycpu.setMax(max); //y 轴最大值
ycpu.setSteps(10); // 步进
// double max2 = 4000.0;
// YAxis ymem = new YAxis(); //y轴(Mem)
// ymem.setMax(max2);
// ymem.setSteps(500);
// ymem.addLabels("dsdsds");
// lineChartMem.setRightYAxis();//LineChartMem使用右边的纵坐标
// lineChartMem.setColour("#009100");
// lineChartMem.setYAxis("yaoyaoy");
Chart flashChart = new Chart( " 资源使用率 " , "font-size:12px;color:#ff0000;" ); // 整个图的标题
//Element[] elements = {lineChart, lineChartMem};
// HashSet hashSet = new HashSet();
// hashSet.add(lineChart);
// hashSet.add(lineChartMem);
// flashChart.addElements(hashSet); // 把线状图加入到图表 --为什么只显示一条线?
//flashChart.addElements(lineChartMem);
Text yText = new Text("Usage(%)",Text.createStyle(10, "#736AFF",Text.TEXT_ALIGN_LEFT));
//Text yText2 = new Text("Mem(Mb)",Text.createStyle(20, "#009100", Text.TEXT_ALIGN_RIGHT));
// Legend legend = new Legend();
//legend.set
//flashChart.setXAxis(x);
// lineChart.setYAxis("资源使用率");
//lineChart.setTooltip("tooltip");
// Label lbl1 = new Label("CPU");
// Label lbl2 = new Label("磁盘");
// Label lbl3 = new Label("内存");
// lbl1.setColour("0x336699");
// lbl2.setColour("#3334AD");
// lbl3.setColour("#D54C78");
// lineChart.setText("CPU");
// lineChartDisk.setText("Disk");
// lineChartMem.setText("Memory");
// flashChart.addElements(lineChartMem);
// flashChart.addElements(lineChartDisk);
flashChart.addElements(lineChart);
// Tooltip tip1 = new Tooltip();
// tip1.setTitleStyle("测试");
flashChart.setYAxis(ycpu);
flashChart.setYLegend(yText);//设置y轴显示内容
//flashChart.setYLegend(yText2);
//设置Label
// Label label = new Label();
// label.setColour("green");
// label.setText("Mem");
//legend.set
String json = flashChart.toString();// 转成 json 格式
System.out.println("json content: "+json);
response.setContentType( "application/json-rpc;charset=utf-8" );
response.setHeader( "Cache-Control" , "no-cache" );
response.setHeader( "Expires" , "0" );
response.setHeader( "Pragma" , "No-cache" );
response.getWriter().print(json);// 写到客户端
}catch(Exception ex){
ex.printStackTrace();
}
}
// Clean up resources
public void destroy() {
// TODO Auto-generated method stub
}
}
PieChartServlet:
package mydashboard;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jofc2.model.Chart;
import jofc2.model.elements.PieChart;
public class PieChartServlet extends HttpServlet {
// Initialize global variables
public void init() throws ServletException {
// TODO Auto-generated method stub
}
// Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try{
PieChart pie = new PieChart();
pie.setFontSize(15);// 设置字体
pie.addSlice(200000000, " 研发经费 " );// 分类
pie.addSlice(60000000, " 旅游经费 " );
pie.addSlice(30000000, " 推广经费 " );
pie.addSlice(20000000, " 创业经费 " );
pie.setBorder(500);
pie.setStartAngle(60);// 设置角度
pie.setAnimate( true ); //设置动态效果
// 设置颜色 (自己调制颜色时该如何调... ... )
pie.setColours( new String[] { "0x336699" , "0x88AACC" , "0x999933" ,
"0x666699" , "0xCC9933" , "0x006666" , "0x3399FF" , "0x993300" ,
"0xAAAA77" , "0x666666" , "0xFFCC66" , "0x6699CC" , "0x663366" ,
"0x9999CC" , "0xAAAAAA" , "0x669999" , "0xBBBB55" , "0xCC6600" ,
"0x9999FF" , "0x0066CC" , "0x99CCCC" , "0x999999" , "0xFFCC00" ,
"0x009999" , "0x99CC33" , "0xFF9900" , "0x999966" , "0x66CCCC" ,
"0x339966" , "0xCCCC33" });
pie.setTooltip( "#val# / #total#<br> 占百分之 #percent#");// 鼠标移动上去后提示内容
pie.setRadius(100); //设置半径大小
Chart flashChart = new Chart( " 2009至2010年度 Apusic财务分析 " , "font-size:30px;color:#ff0000;" ); // 整个图的标题
//flashChart.setBackgroundColour("#3EFFFF");
flashChart.addElements(pie); // 把饼图加入到图表
String json = flashChart.toString();// 转成 json 格式
System.out.println(json);
response.setContentType( "application/json-rpc;charset=utf-8" );
response.setHeader( "Cache-Control" , "no-cache" );
response.setHeader( "Expires" , "0" );
response.setHeader( "Pragma" , "No-cache" );
response.getWriter().print(json);// 写到客户端
}catch(Exception ex){
ex.printStackTrace();
}
}
// Clean up resources
public void destroy() {
// TODO Auto-generated method stub
}
}
BarChartServlet:
package mydashboard;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jofc2.model.Chart;
import jofc2.model.axis.XAxis;
import jofc2.model.axis.YAxis;
import jofc2.model.elements.BarChart;
import jofc2.model.elements.BarChart.Bar;
public class BarChartServlet extends HttpServlet {
// Initialize global variables
public void init() throws ServletException {
// TODO Auto-generated method stub
}
// Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
try{
BarChart chart = new BarChart(BarChart.Style. GLASS ); // 设置条状图样式
//FilledBarChart chart = new FilledBarChart("red","blue");// 设置条状图样式
//String sMax = "10000" ;
long max = 900; // //Y 轴最大值
Map<String,Long> map = new HashMap<String,Long>();
map.put( "5" , new Long(50));
map.put( "6" , new Long(45));
map.put( "7" , new Long(60));
map.put( "8" , new Long(30));
map.put( "9" , new Long(80));
map.put( "10" , new Long(500));
map.put( "11" , new Long(800));
map.put( "12" , new Long(200));
XAxis x = new XAxis(); // X 轴
int i = 5;
for (String key:map.keySet()){
x.addLabels(i+"月份"); // x 轴的文字
Bar bar = new Bar(map.get(""+i), " 万元 " );
i++;
bar.setColour( "0x336699" ); // 颜色
bar.setTooltip(map.get(""+i) + " 万元 " ); // 鼠标移动上去后的提示
chart.addBars(bar); // 条标题，显示在 x 轴上
}
Chart flashChart = new Chart();
flashChart.addElements(chart); // 把柱图加入到图表
YAxis y = new YAxis(); //y 轴
y.setMax(max+10.0); //y 轴最大值
y.setSteps(max/10*1.0); // 步进
flashChart.setYAxis(y);
flashChart.setXAxis(x);
String json = flashChart.toString();
response.setContentType( "application/json-rpc;charset=utf-8" );
response.setHeader( "Cache-Control" , "no-cache" );
response.setHeader( "Expires" , "0" );
response.setHeader( "Pragma" , "No-cache" );
response.getWriter().print(json);// 写到客户端
}catch(Exception ex){
ex.printStackTrace();
}
}
// Clean up resources
public void destroy() {
// TODO Auto-generated method stub
}
}
BarChart2Servlet:
package mydashboard;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jofc2.model.Chart;
import jofc2.model.Text;
import jofc2.model.axis.XAxis;
import jofc2.model.axis.YAxis;
import jofc2.model.elements.StackedBarChart;
public class BarChart2Servlet extends HttpServlet {
// Initialize global variables
public void init() throws ServletException {
// TODO Auto-generated method stub
}
// Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try{
// StackedBarChart chart = new StackedBarChart( ); // 设置组合柱状图
//
// long max = 900; // //Y 轴最大值
//
//
//
// Map<String,Long> map = new HashMap<String,Long>();
//
// map.put( "5" , new Long(50));
//
// map.put( "6" , new Long(45));
//
// map.put( "7" , new Long(60));
//
// map.put( "8" , new Long(30));
//
// map.put( "9" , new Long(80));
//
// map.put( "10" , new Long(500));
//
// map.put( "11" , new Long(800));
//
// map.put( "12" , new Long(200));
//
//
//
// XAxis x = new XAxis(); // X 轴
//
// x.set3D(0);
//
// x.setColour("#909090");
//
// x.setGridColour("#ADB5C7");
//
// int i = 5;
//
// for (String key:map.keySet()){
//
// StackedBarChart.Stack stack = new StackedBarChart.Stack();//新建柱组
//
// x.addLabels("x"+i); // x 轴的文字
//
// StackedBarChart.StackValue stackValue = new StackedBarChart.StackValue(map.get(""+i),"0x336699");//每组柱状图每个柱的设置
// StackedBarChart.StackValue stackValue2 = new StackedBarChart.StackValue(i * 5 + 10,"#3334AD");
// StackedBarChart.StackValue stackValue3 = new StackedBarChart.StackValue(i * 10 + 20,"#D54C78");
//
// i++;
//
// stack.addStackValues(stackValue);
// stack.addStackValues(stackValue2);
// stack.addStackValues(stackValue3);
//
// chart.addStack(stack); // 条标题，显示在 x 轴上
//
// }
//
//
// StackedBarChart.Key key1 = new StackedBarChart.Key("0x336699","Apusic",20);
// StackedBarChart.Key key2 = new StackedBarChart.Key("#3334AD","EAS",20);
// StackedBarChart.Key key3 = new StackedBarChart.Key("#D54C78","KIS",20);
//
// chart.addKeys(key1);
// chart.addKeys(key2);
// chart.addKeys(key3);
//
// Chart flashChart = new Chart("主机性能监控图","{font-size:20px; color: #FFFFFF; margin: 5px; background-color: #505050; padding:5px; padding-left: 20px; padding-right: 20px;}");
//
// flashChart.addElements(chart); // 把柱图加入到图表
//
// YAxis y = new YAxis(); //y 轴
//
// y.set3D(0);
//
// y.setColour("#909090");
//
// y.setGridColour("#ADB5C7");
//
// y.setMax(max+10.0); //y 轴最大值
//
// y.setSteps(max/10*1.0); // 步进
//
// flashChart.setYAxis(y);
//
// flashChart.setXAxis(x);
//
// Text text = new Text("Resource Usage");
//
// text.setStyle(Text.createStyle(15, "#736AFF", Text.TEXT_ALIGN_RIGHT));
//
// flashChart.setYLegend(text);//设置Y轴左侧的文字
//
// String json = flashChart.toString();
String charts="";
StackedBarChart chart = new StackedBarChart(); // 设置组合柱状图
long max = 90; // //Y 轴最大值
//Set<Usinginfo> set = getHostsByUser(user);
//List<Usinginfo> results = new Usinginfo().findLatestInfos();
// Map<String,Long> map = new HashMap<String,Long>();
//
// map.put( "5" , new Long(50));
//
// map.put( "6" , new Long(45));
//
// map.put( "7" , new Long(60));
//
// map.put( "8" , new Long(30));
//
// map.put( "9" , new Long(80));
//
// map.put( "10" , new Long(500));
//
// map.put( "11" , new Long(800));
//
// map.put( "12" , new Long(200));
XAxis x = new XAxis(); // X 轴
x.set3D(0);
x.setColour("#909090");
x.setGridColour("#ADB5C7");
//
// for(int i=0; i<results.size();i++){
//
// StackedBarChart.Stack stack = new StackedBarChart.Stack();//新建柱组
// x.addLabels("x"+i); // x 轴的文字
// StackedBarChart.StackValue stackValue = new StackedBarChart.StackValue(results.get(i).getDiskRatio(),"0x336699");//每组柱状图每个柱的设置
// StackedBarChart.StackValue stackValue2 = new StackedBarChart.StackValue(results.get(i).getCpuRatio(),"#3334AD");
// StackedBarChart.StackValue stackValue3 = new StackedBarChart.StackValue(results.get(i).getMemRatio(),"#D54C78");
//
// stack.addStackValues(stackValue);
// stack.addStackValues(stackValue2);
// stack.addStackValues(stackValue3);
//
// chart.addStack(stack); // 条标题，显示在 x 轴上
// }
StackedBarChart.Key key1 = new StackedBarChart.Key("0x336699","Apusic",20);
StackedBarChart.Key key2 = new StackedBarChart.Key("#3334AD","EAS",20);
StackedBarChart.Key key3 = new StackedBarChart.Key("#D54C78","KIS",20);
chart.addKeys(key1);
chart.addKeys(key2);
chart.addKeys(key3);
Chart flashChart = new Chart("主机性能监控图","{font-size:20px; color: #FFFFFF; margin: 5px; background-color: #505050; padding:5px; padding-left: 20px; padding-right: 20px;}");
flashChart.addElements(chart); // 把柱图加入到图表
YAxis y = new YAxis(); //y 轴
y.set3D(0);
y.setColour("#909090");
y.setGridColour("#ADB5C7");
y.setMax(max+10.0); //y 轴最大值
y.setSteps(max/10*1.0); // 步进
flashChart.setYAxis(y);
flashChart.setXAxis(x);
Text text = new Text("Resource Usage");
text.setStyle(Text.createStyle(15, "#736AFF", Text.TEXT_ALIGN_RIGHT));
flashChart.setYLegend(text);//设置Y轴左侧的文字
charts = flashChart.toString();
System.out.println("获得json: "+charts);
response.setContentType( "application/json-rpc;charset=utf-8" );
response.setHeader( "Cache-Control" , "no-cache" );
response.setHeader( "Expires" , "0" );
response.setHeader( "Pragma" , "No-cache" );
response.getWriter().print(charts);// 写到客户端
}catch(Exception ex){
ex.printStackTrace();
}
}
// Clean up resources
public void destroy() {
// TODO Auto-generated method stub
}
}
问题： lineChart上设置的toolTip无效
pieChart的tooltip在flex界面显示时离图本身距离过远（若你将pieChart的父组件的x与y都设为0则不会出现这问题，但这没实际意义）