前台：
//远程读取设备去向图表数据
var Store1 = new Ext.data.Store({
<span style="white-space:pre"> </span>proxy:{
<span style="white-space:pre"> </span>type:'ajax',
<span style="white-space:pre"> </span>url:'/newmaterial/servlet/GetCountChartGoDatas',
<span style="white-space:pre"> </span>reader:{
<span style="white-space:pre"> </span>type:'array'
<span style="white-space:pre"> </span>}<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>},
<span style="white-space:pre"> </span>fields:[
<span style="white-space:pre"> </span>"System",
<span style="white-space:pre"> </span>{name:"Share",type:"float"}
<span style="white-space:pre"> </span>]
});
Store1.load();
var mychart1 = new Ext.chart.Chart({
<span style="white-space:pre"> </span>store:Store1,
<span style="white-space:pre"> </span>title:'全部物料去向概览',
<span style="white-space:pre"> </span>width:500,
<span style="white-space:pre"> </span>height:500,
<span style="white-space:pre"> </span>insetPadding:50,
<span style="white-space:pre"> </span>legend:{position:"right"},
<span style="white-space:pre"> </span>series:[{
<span style="white-space:pre"> </span>type:'pie',
<span style="white-space:pre"> </span>field:'Share',
<span style="white-space:pre"> </span>showInLegend:true,
<span style="white-space:pre"> </span>highlight:{
<span style="white-space:pre"> </span>segment:{margin:20}
<span style="white-space:pre"> </span>},
<span style="white-space:pre"> </span>label:{
<span style="white-space:pre"> </span>field:'System',
<span style="white-space:pre"> </span>display:'rotate',
<span style="white-space:pre"> </span>contrast:true
<span style="white-space:pre"> </span>},
<span style="white-space:pre"> </span>tips:{
<span style="white-space:pre"> </span>trackMouse:true,
<span style="white-space:pre"> </span>renderer:function(rec,item){
<span style="white-space:pre"> </span>this.update(rec.get("System")+':'+rec.get("Share")+'%');
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>}]
});
后台：
public class GetCountChartGoDatas extends HttpServlet {
/**
* @Fields serialVersionUID :
*/
private static final long serialVersionUID = 1L;
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html");
StringBuffer sb = new StringBuffer();
NowmaterialDAO nmd = new NowmaterialDAO();
MaterialDAO md = new MaterialDAO();
List getlist = nmd.getSession().createCriteria(Nowmaterial.class)
.setProjection(
Projections.projectionList()
.add(Projections.rowCount()).add(
Projections.groupProperty("material.msCode")))
.list();
int total = 0;
for (int i = 0; i < getlist.size(); i++) {
Object[] row = (Object[]) getlist.get(i);
total = total + Integer.parseInt(row[0].toString());
}
response.setCharacterEncoding("utf-8");
sb.append("[");
for (int i = 0; i < getlist.size(); i++) {
Object[] row = (Object[]) getlist.get(i);
List<Material> getonelist = md.findByProperty("msCode", row[1]);
sb.append("['" + getonelist.get(0).getMsName() + "',"
+ Float.parseFloat(row[0].toString()) + "],");
}
sb.append("]");
int qu = sb.lastIndexOf(",");
sb.deleteCharAt(qu);
response.getWriter().print(sb.toString());
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to
* post.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}