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用Java从XML文件中获取业务图表 - 编程入门网

作者 佚名技术 来源 NET编程 浏览 发布时间 2012-06-23
eDataset() { int lp,nCurrent; String strXPath; String strVal; Vector[] victor= new Vector[nDataXPathCount]; try{ for(lp=0;lp<nDataXPathCount;lp++) { victor[lp] = new Vector(); strXPath = strDataXPaths.elementAt(lp).toString(); niNodeList = XPathAPI.selectNodeIterator(xmlData,strXPath); elemItem = (Element) niNodeList.nextNode(); do{ if(elemItem.getFirstChild()!=null) { strVal = elemItem.getFirstChild().getNodeValue(); victor[lp].add(strVal); } elemItem = (Element) niNodeList.nextNode(); } while(elemItem!=null); } Double[][] nData = new Double[nDataXPathCount][victor[0].size()]; for(lp=0;lp<nDataXPathCount;lp++) { for(nCurrent=0;nCurrent<victor[0].size();nCurrent++) { try{ nData[lp][nCurrent] = new Double(victor[lp].elementAt(nCurrent).toString()); } catch (Exception e){ nData[lp][nCurrent] = new Double(0); } } } Vector vCategories = new Vector(); strXPath = strCategoryXPaths.elementAt(0).toString(); niNodeList = XPathAPI.selectNodeIterator(xmlData,strXPath); elemItem = (Element) niNodeList.nextNode(); for(lp=0;lp<victor[0].size();lp++) { strVal = elemItem.getFirstChild().getNodeValue(); vCategories.add(strVal); elemItem = (Element) niNodeList.nextNode(); } DefaultCategoryDataset dSet = new DefaultCategoryDataset(nData); String[] strT = new String[strSTitles.size()]; for(lp=1;lp<=strSTitles.size();lp++) { strT[lp-1] = strSTitles.elementAt(lp-1).toString(); } dSet.setSeriesNames(strT); dSet.setCategories(vCategories.toArray()); return dSet; } catch (Exception e) { e.printStackTrace(); } Double[][] nData = new Double[][]{{new Double(0)},{new Double(0)}}; return new DefaultCategoryDataset(nData); } }

用Java从XML文件中获取业务图表(6)

时间:2010-12-06

代码段5 charts.xml

<?xml version="1.0"?> <root>   <chart id=''points''>    <url>http://localhost/players.xml</url>    <config>http://localhost/pmconfig.xml</config>    <series>//Players/Player[Points>0 and Minutes>1000]/Points</series>    <categories>//Players/Player[Points>0 and Minutes>1000]/Name</categories>    <XSize>600</XSize>    <YSize>400</YSize>   </chart>   <chart id=''defenders''>    <url>http://localhost/players.xml</url>    <config>http://localhost/dfconfig.xml</config>    <series>//Players/Player[Position=''DEF'' or Position=''DEF-MID'']/Points</series>    <categories>//Players/Player[Position=''DEF'' or Position=''DEF-MID'']/Name</categories>    <XSize>600</XSize>    <YSize>400</YSize>   </chart>   <chart id=''makeup''>    <url>http://localhost/players.xml</url>    <config>http://localhost/muconfig.xml</config>    <series>//Players/Player/Goals,//Players/Player/Points</series>    <categories>//Players/Player/Number</categories>    <XSize>600</XSize>    <Y

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