pdf方法打印报错 在tomcat 中 信息如下:java.lang.NullPointerException
com.lowagie2.text.exceptions.IllegalPdfSyntaxException: Unbalanced save/restore state operators.
at com.lowagie2.text.pdf.PdfContentByte.sanityCheck(PdfContentByte.java:3125)
at com.lowagie2.text.pdf.PdfContentByte.reset(PdfContentByte.java:1280)
at com.lowagie2.text.pdf.PdfContentByte.reset(PdfContentByte.java:1269)
at com.lowagie2.text.pdf.PdfWriter.resetContent(PdfWriter.java:739)
at com.lowagie2.text.pdf.PdfDocument.initPage(PdfDocument.java:1147)