問題添加圖表（JFreeChart的PDF）和（iText的）

Question

當我添加1個圖表文件是沒有問題的

當我添加第二張圖我得到這個錯誤...螺紋

異常「main」com.itextpdf.text.exceptions.IllegalPdfSyntaxException：不平衡的保存/恢復狀態操作符。

chart1 = SpecialJFreeChartBuilder.createChart1(
       "Site and Number of Requests ", results); 

     document.newPage(); 

     PdfContentByte Add_Chart_Content = writer.getDirectContent(); 
     PdfTemplate template_Chart_Holder = Add_Chart_Content 
       .createTemplate(width, height); 
     Graphics2D Graphics_Chart = template_Chart_Holder.createGraphics(
       width, height, new DefaultFontMapper()); 
     Rectangle2D Chart_Region = new Rectangle2D.Double(0, 0, 540, 380); 
     chart1.draw(Graphics_Chart, Chart_Region); 
     Graphics_Chart.dispose(); 
     Add_Chart_Content.addTemplate(template_Chart_Holder, 0, 0); 

     chart2 = SpecialJFreeChartBuilder.createChart2(
       "Site and totalAmount ", results); 

     document.newPage(); 

     PdfContentByte Add_Chart_Content1 = writer.getDirectContent(); 
     PdfTemplate template_Chart_Holder1 = Add_Chart_Content1 
       .createTemplate(width, height); 
     Graphics2D Graphics_Chart1 = template_Chart_Holder1.createGraphics(
       width, height, new DefaultFontMapper()); 
     Rectangle2D Chart_Region1 = new Rectangle2D.Double(0, 0, 540, 380); 
     chart2.draw(Graphics_Chart1, Chart_Region1); 
     Graphics_Chart.dispose(); 
     Add_Chart_Content.addTemplate(template_Chart_Holder1, 0, 0); 

.... document.close（）;

誰能幫我....

Answer 1

解決問題... Graphics_Chart.dispose（）;必須是：Graphics_Chart1.dispose（）; Graphics_Chart2.dispose（）;