html字符串生成pdf导出

Question

代码：

    报错：
    java.lang.NullPointerException: Font and size must be set before writing any text
at com.lowagie.text.pdf.PdfContentByte.showText2(Unknown Source) ~[itext-2.0.8.jar:?]
at com.lowagie.text.pdf.PdfContentByte.showText(Unknown Source) ~[itext-2.0.8.jar:?]
at org.xhtmlrenderer.pdf.ITextOutputDevice.drawString(ITextOutputDevice.java:489) ~[core-renderer.jar:?]
at org.xhtmlrenderer.pdf.ITextTextRenderer.drawString(ITextTextRenderer.java:42) ~[core-renderer.jar:?]
at org.xhtmlrenderer.render.AbstractOutputDevice.drawText(AbstractOutputDevice.java:72) ~[core-renderer.jar:?]
at org.xhtmlrenderer.render.InlineText.paint(InlineText.java:129) ~[core-renderer.jar:?]
at org.xhtmlrenderer.render.InlineLayoutBox.paintInline(InlineLayoutBox.java:276) ~[core-renderer.jar:?]
at org.xhtmlrenderer.layout.Layer.paintInlineContent(Layer.java:274) ~[core-renderer.jar:?]
at org.xhtmlrenderer.layout.Layer.paint(Layer.java:332) ~[core-renderer.jar:?]
at org.xhtmlrenderer.pdf.ITextRenderer.paintPage(ITextRenderer.java:384) ~[core-renderer.jar:?]
at org.xhtmlrenderer.pdf.ITextRenderer.writePDF(ITextRenderer.java:348) ~[core-renderer.jar:?]
at org.xhtmlrenderer.pdf.ITextRenderer.createPDF(ITextRenderer.java:315) ~[core-renderer.jar:?]
at org.xhtmlrenderer.pdf.ITextRenderer.createPDF(ITextRenderer.java:246) ~[core-renderer.jar:?]
at cn.cmschina.report.service.ReportService.demo_2(ReportService.java:808) ~[bin/:?]
at cn.cmschina.report.api.ReportApi.exportReportCollect(ReportApi.java:218) ~[bin/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_72]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_72]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_72]
at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_72]
at cn.cmschina.core.rpc.RpcProcessor.process(RpcProcessor.java:730) ~[micro-core-1.2.07.jar:?]
at cn.cmschina.core.rpc.RpcProcessor.process(RpcProcessor.java:1256) [micro-core-1.2.07.jar:?]
at cn.cmschina.core.rpc.RpcService$DirectMessageAdaptor.processMessage(RpcService.java:207) [micro-core-1.2.07.jar:?]
at cn.cmschina.core.rpc.RpcService$DirectMessageAdaptor.access$300(RpcService.java:110) [micro-core-1.2.07.jar:?]
at cn.cmschina.core.rpc.RpcService$DirectMessageAdaptor$1.run(RpcService.java:169) [micro-core-1.2.07.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_72]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_72]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_72]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_72]
at java.lang.Thread.run(Thread.java:745) [?:1.7.0_72]

引用jar包：iText-2.0.8.jar、core-renderer.jar；itext-asian-5.2.0.jar；

求各位大神指点

Answer 1

虽然没用过但是可以通过报错定位问题Font and size must be set before writing any text：
renderer是不是有个setFont之类的方法用来设置字体，你虽然实例化了一个fontResolver 但并没有设置到renderer中，你再检查下