📄 fcgraphservlet.java
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//package dom;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.io.*;
import dom.fcGraph;
import java.util.Hashtable;
import java.util.Vector;
import java.util.Enumeration;
import java.awt.*;
import org.xml.sax.* ;
import org.apache.xerces.dom.TextImpl;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import dom.DOMParserWrapper;
import dom.wrappers.DOMParser;
import java.lang.Boolean;
public class fcGraphServlet extends HttpServlet {
private String strXml="";
private Document document=null;
public void service( HttpServletRequest req, HttpServletResponse res )
throws IOException, ServletException {
//res.setContentType("text/html");
res.setContentType("image/jpeg");
/*
fcGraph sg = new fcGraph();
try {
ServletOutputStream out = null;
out = res.getOutputStream();
int iType=1;
*/
String strKey = req.getParameter( "key" );
if (strKey.equals("send"))
{
//送参数
//计算前台SEND来的XML串 存入session中
BufferedReader in = req.getReader();
String line = null;
strXml="";
while ((line = in.readLine()) != null) {
strXml=strXml+line;
}
// strXml=encodeTrans(strXml,"8859") ;
HttpSession session = req.getSession(true);
session.setAttribute("graphdata", strXml);
}
if (strKey.equals("show"))
{
HttpSession session = req.getSession(true);
strXml=session.getAttribute("graphdata").toString();
//strKey为？后的值
//String strXml=new String(req.getQueryString());
strXml=Trans(strXml);
//parse XML串
try {
DOMParserWrapper parser =(DOMParserWrapper)Class.forName("dom.wrappers.DOMParser").newInstance();
document = parser.parseXml(strXml);
}
catch (Exception e) {
}
//--------------------------------------------------------
//--------------------------------------------------------
fcGraph sg = new fcGraph();
try {
ServletOutputStream out = null;
out = res.getOutputStream();
//图形类型1 2 3
String sType = req.getParameter( "type" );
int iType=Integer.parseInt(sType,10);
//行数
String sRows = req.getParameter( "rows" );
int iRows=Integer.parseInt(sRows,10);
//列数
String sCols = req.getParameter( "cols" );
int iCols=Integer.parseInt(sCols,10);
//标题
String sTitle="";
String sWidth="";
String sHeight="";
String strMargin="";
String strLabeltext="";//X轴标题的内容
String strLabelleft="";//标题的横坐标
String strLabeltop="";//标题的纵坐标
String strArcCenterleft="100";//圆心的横坐标
String strArcCentertop="150";//圆心的纵坐标
String strArcRadius="70";//圆的半径
String strPieHigh="30";
String strExchangeXY="";//当strExchangeXY设置为true时,报表的行,列的数据要进行调换;接收时其值为true或false
String strWriteNumeric="";//每个柱形图上是否写上相应的数值
boolean bWriteNumeric=false;//将strWriteNumeric转化为boolean型值后，再传到fcGraph.class中
String strSplit="";
String strEffectCols="";//实际列数
try {
sTitle = req.getParameter( "title" );
}
catch( Exception e ) { }
try {
sWidth = req.getParameter( "width" );
sHeight = req.getParameter( "height" );
strMargin=req.getParameter( "ImgMargin" );
//System.out.println("strMargin="+strMargin);
}
catch( Exception e ) { }
try {
strLabeltext = req.getParameter( "Label" );
}
catch( Exception e ) { }
try {
strLabelleft = req.getParameter( "LabelLeft" );
}
catch( Exception e ) { }
try {
strLabeltop = req.getParameter( "LabelTop" );
}
catch( Exception e ) { }
try {
strArcCenterleft = req.getParameter( "ArcLeft" );
}
catch( Exception e ) { }
try {
strArcCentertop = req.getParameter( "ArcTop" );
}
catch( Exception e ) { }
try {
strArcRadius = req.getParameter( "ArcRadius" );
}
catch( Exception e ) { }
try {
strPieHigh = req.getParameter( "PieHigh" );
}
catch( Exception e ) { }
try {
strExchangeXY=req.getParameter("ExchangeXY");
}
catch(Exception e){}
try {
strWriteNumeric=req.getParameter("StrWriteNumeric");
}
catch(Exception e){}
try {
strSplit=req.getParameter("StrSplit");
}
catch(Exception e){}
try {
strEffectCols=req.getParameter("EffectCols");
}
catch(Exception e){}
int iWidth=Integer.parseInt(sWidth,10);
int iHeight=Integer.parseInt(sHeight,10);
int iMargin=Integer.parseInt(strMargin);
//System.out.println("iMargin="+iMargin);
int Labelleft=Integer.parseInt(strLabelleft);
int Labeltop=Integer.parseInt(strLabeltop);
int strlength=strLabeltext.length();
int PieHigh=Integer.parseInt(strPieHigh);
if (Labelleft==0){
Labelleft=iWidth-(strlength*12+30);
}
if (Labeltop==0){
Labeltop=iHeight-10;
}
int Arcleft=Integer.parseInt(strArcCenterleft);
int Arctop=Integer.parseInt(strArcCentertop);
int ArcRadius=Integer.parseInt(strArcRadius);
if (strWriteNumeric.equals("true")){
bWriteNumeric=true;
}
else {
bWriteNumeric=false;
}
int iSplit=Integer.parseInt(strSplit);
int effectCols=Integer.parseInt(strEffectCols);
//数据输入
Node root = document.getChildNodes().item(0);
Hashtable data= new Hashtable();
int i=0;
int j=0;
Vector V=new Vector(iRows);//行的ＫＥＹ
Vector V2=new Vector(iCols);//列的ＫＥＹ
if (strExchangeXY.equals("true")){
//当strExchangeXY="true"时,表示报表行和列的数据要进行对换
if (iCols>2) {
for (i=1;i<iCols;i++)
{
String s2 =root.getChildNodes().item(0).getChildNodes().item(i).getChildNodes().item(0).getNodeValue();
//if (iCols>2) {
//多列
Hashtable datas1= new Hashtable();
for (j=1;j<iRows;j++)
{
String ss =root.getChildNodes().item(j).getChildNodes().item(0).getChildNodes().item(0).getNodeValue();
String s3=root.getChildNodes().item(j).getChildNodes().item(i).getChildNodes().item(0).getNodeValue();
datas1.put(ss,new Double(s3));
if (i==1)
V2.addElement(new String(ss));
}
data.put(s2,datas1);
V.addElement(s2);
}
}
else {
Hashtable datas1= new Hashtable();
String s2 =root.getChildNodes().item(0).getChildNodes().item(1).getChildNodes().item(0).getNodeValue();
for (j=1;j<iRows;j++)
{
String ss =root.getChildNodes().item(j).getChildNodes().item(0).getChildNodes().item(0).getNodeValue();
String s3=root.getChildNodes().item(j).getChildNodes().item(1).getChildNodes().item(0).getNodeValue();
datas1.put(ss,new Double(s3));
V2.addElement(new String(ss));
}
data.put(s2,datas1);
V.addElement(s2);
}
}
else {
//此else块是处理,strExchangeXY不等于"true"时,报表行和列的数据不进行对换,/////============================
for (i=1;i<iRows;i++)
{
String s2 =root.getChildNodes().item(i).getChildNodes().item(0).getChildNodes().item(0).getNodeValue();
if (iCols>2) {
//多列
Hashtable datas1= new Hashtable();
for (j=1;j<iCols;j++)
{
String ss =root.getChildNodes().item(0).getChildNodes().item(j).getChildNodes().item(0).getNodeValue();
String s3=root.getChildNodes().item(i).getChildNodes().item(j).getChildNodes().item(0).getNodeValue();
datas1.put(ss,new Double(s3));
if (i==1)
V2.addElement(new String(ss));
}
data.put(s2,datas1);
}
else
{
//单列
String s4=root.getChildNodes().item(i).getChildNodes().item(1).getChildNodes().item(0).getNodeValue();
data.put(s2,new Double(s4));
}
V.addElement(s2);
}
}
//----------------------------------------------------
/*
Hashtable data= new Hashtable();
Hashtable datas1= new Hashtable();
datas1.put("一车间",new Double(10));
datas1.put("二车间",new Double(30));
datas1.put("三车间",new Double(150));
datas1.put("四车间",new Double(20));
datas1.put("五车间",new Double(30));
data.put("一分厂",datas1);
Hashtable datas2= new Hashtable();
datas2.put("一车间",new Double(40));
datas2.put("二车间",new Double(70));
datas2.put("三车间",new Double(90));
datas2.put("四车间",new Double(10));
datas2.put("五车间",new Double(20));
data.put("二分厂",datas2);
Hashtable datas3= new Hashtable();
datas3.put("一车间",new Double(86));
datas3.put("二车间",new Double(40));
datas3.put("三车间",new Double(50));
datas3.put("四车间",new Double(150));
datas3.put("五车间",new Double(50));
data.put("三分厂",datas3);
Hashtable datas4= new Hashtable();
datas4.put("一车间",new Double(66));
datas4.put("二车间",new Double(100));
datas4.put("三车间",new Double(36));
datas4.put("四车间",new Double(26));
//datas4.put("五车间",new Double(56));
data.put("四分厂",datas4);
Hashtable datas5= new Hashtable();
datas5.put("一车间",new Double(66));
datas5.put("二车间",new Double(100));
datas5.put("三车间",new Double(36));
datas5.put("四车间",new Double(26));
//datas4.put("五车间",new Double(56));
data.put("五分厂",datas5);
Hashtable datas6= new Hashtable();
datas6.put("一车间",new Double(66));
datas6.put("二车间",new Double(100));
datas6.put("三车间",new Double(36));
datas6.put("四车间",new Double(26));
//datas4.put("五车间",new Double(56));
data.put("六分厂",datas6);
Hashtable datas7= new Hashtable();
datas7.put("一车间",new Double(66));
datas7.put("二车间",new Double(100));
datas7.put("三车间",new Double(36));
datas7.put("四车间",new Double(26));
//datas4.put("五车间",new Double(56));
data.put("七分厂",datas7);
Vector V=new Vector(8);
V.addElement(new String("一分厂"));
V.addElement(new String("二分厂"));
V.addElement(new String("三分厂"));
V.addElement(new String("四分厂"));
V.addElement(new String("五分厂"));
V.addElement(new String("六分厂"));
V.addElement(new String("七分厂"));
V.addElement(new String("八分厂"));
Vector V2=new Vector(8);
V2.addElement(new String("一车间"));
V2.addElement(new String("二车间"));
V2.addElement(new String("三车间"));
V2.addElement(new String("四车间"));
V2.addElement(new String("五车间"));
//----------------------------------------------------
*/
sg.SetHashtableKey(V);
sg.SetDataSource(data);
sg.SetbgColor(Color.white);//white);//底色
sg.SetDisplayType(iType); //设置图形风格
if (iWidth>0 && iHeight>0)
sg.SetScreen(iWidth,iHeight,iMargin);//设置显示区域大小
else
sg.SetScreen(600,300,iMargin);//设置显示区域大小
//sg.SetTitleFont(new Font("楷体_GB2312",Font.BOLD,24));//设置标题字体
sg.SetTitle(sTitle); //设置标题
sg.SetTitlefontcolor(Color.blue);//设置标题颜色
sg.SetcooColor(Color.black); //坐标系（x轴y轴）颜色
sg.SetlineColor(Color.black);//折线颜色
//sg.SetCategoryFont(new Font("楷体_GB2312",Font.BOLD,18));//设置X轴标签字体
sg.SetCategoryfontcolor(Color.blue);//设置X轴标签颜色
sg.SetCategory(strLabeltext,Labelleft,Labeltop); //设置X轴标签内容、位置
sg.Setxnodefontcolor(Color.black);//设置X轴节点字体的颜色
//sg.Setxnodefont(new Font("楷体_GB2312",Font.BOLD,16)); //设置X轴节点字体
//sg.SetValueFont(new Font("楷体_GB2312",Font.BOLD,18));//设置Y轴标题字体
sg.SetValueFontcolor(Color.green);//设置Y轴标题颜色
//sg.Setynodefont(new Font("楷体_GB2312",Font.BOLD,16));//设置Y轴节点字体
sg.Setynodefontcolor(Color.black);//设置Y轴节点字体、颜色
sg.SetPieCenter(Arcleft,Arctop);//设置圆饼圆心
sg.Setradius(ArcRadius);//半径
sg.SetPieHeight(PieHigh);
//boolean WriteNumeric=true;
sg.SetWriteNumeric(bWriteNumeric);
sg.SetSplitData(iSplit);
sg.SetEffectCols(effectCols);
//sg.SetPieFont(new Font("楷体_GB2312",Font.BOLD,14));//圆饼字体
if (strExchangeXY.equals("true")){
//if (iCols>2)
//{
sg.SetexistSeries(1);
sg.SetHashtableKey2(V2);
//}
//else
//{
//sg.SetexistSeries(1);
//sg.SetValue(root.getChildNodes().item(0).getChildNodes().item(1).getChildNodes().item(0).getNodeValue());//设置Y轴标题内容、位置
//sg.SetHashtableKey2(V2);
//}
}
else {
if (iCols>2)
{
sg.SetexistSeries(1);
sg.SetHashtableKey2(V2);
}
else
{
sg.SetexistSeries(0);
sg.SetValue(root.getChildNodes().item(0).getChildNodes().item(1).getChildNodes().item(0).getNodeValue());//设置Y轴标题内容、位置
}
}
sg.DrawGraph( out );//绘制输出
}
catch( Exception e ) {
throw new ServletException( e );
}
}
}
private String encodeTrans( String src, String encode ) {
if( src == null ) return null;
try {
src = new String( src.getBytes( encode ), "gb2312" );
}
catch( Exception e ) {}
return src;
}
private String Trans(String str1) {
String sss="";
try {
byte [] by = str1.getBytes("8859_1");
sss = new String(by,"UTF-8");
}
catch( Exception e ) { }
return sss;
}
}
//Fontname="Dialog","SansSerif","Monospaced","Helvetica"
//"TimesRoman","Courier","DiagInput","ZapfDiagbats"
//Fonttype="Plain""Bold""Italic""BoldItalic"
//Fontsize="12", "14", "16", "18", "24", "36"
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