iText7报错com.itextpdf.kernel.font.PdfType0Font.getCidFontType2(PdfType0Font.java:720)解决

这是由于iText打印中文特殊字符时报错，我是用了windows自带的宋体解决

//创建基础字体    PdfFont sysFont = PdfFontFactory.createFont("c://windows//fonts//simsun.ttc,1",PdfEncodings.IDENTITY_H, false);//中文设置,解决特殊字符错误，

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java.lang.NullPointerException    com.itextpdf.kernel.font.PdfType0Font.getCidFontType2(PdfType0Font.java:720)    com.itextpdf.kernel.font.PdfType0Font.flushFontData(PdfType0Font.java:808)    com.itextpdf.kernel.font.PdfType0Font.flush(PdfType0Font.java:597)    com.itextpdf.kernel.pdf.PdfDocument.flushFonts(PdfDocument.java:1794)    com.itextpdf.kernel.pdf.PdfDocument.close(PdfDocument.java:792)    com.itextpdf.layout.Document.close(Document.java:120)    com.gsafety.plan.module.actions.PreplanAction.uploadPlanPdf(PreplanAction.java:353)    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)    java.lang.reflect.Method.invoke(Method.java:606)    ognl.OgnlRuntime.invokeMethod(OgnlRuntime.java:870)    ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1293)    ognl.ObjectMethodAccessor.callMethod(ObjectMethodAccessor.java:68)    com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethodWithDebugInfo(XWorkMethodAccessor.java:117)    com.opensymphony.xwork2.ognl.accessor.XWorkMethodAccessor.callMethod(XWorkMethodAccessor.java:108)    ognl.OgnlRuntime.callMethod(OgnlRuntime.java:1369)    ognl.ASTMethod.getValueBody(ASTMethod.java:90)    ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)    ognl.SimpleNode.getValue(SimpleNode.java:258)    ognl.Ognl.getValue(Ognl.java:494)    ognl.Ognl.getValue(Ognl.java:458)    com.opensymphony.xwork2.ognl.OgnlUtil$2.execute(OgnlUtil.java:315)    com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecute(OgnlUtil.java:346)    com.opensymphony.xwork2.ognl.OgnlUtil.getValue(OgnlUtil.java:313)    com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:430)    com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:290)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:251)    org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:168)    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)    org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:76)    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:125)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:253)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:140)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)    org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:567)    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)    org.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter.doFilter(StrutsExecuteFilter.java:93)    com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)    com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:91)    org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:152)    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)    org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)