sinat_33415638 2016-03-03 02:15 采纳率: 100%
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我想将文件输出到C盘，可是会出以下异常，输出到d盘就没事

Exception in thread "main" org.apache.poi.openxml4j.exceptions.OpenXML4JRuntimeException: Fail to save: an error occurs while saving the package : null
at org.apache.poi.openxml4j.opc.ZipPackage.saveImpl(ZipPackage.java:503)
at org.apache.poi.openxml4j.opc.OPCPackage.save(OPCPackage.java:1467)
at org.apache.poi.POIXMLDocument.write(POIXMLDocument.java:217)
at test.UseProcess.createWorkbook(UseProcess.java:312)
at test.TestMain.main(TestMain.java:48)
Caused by: java.lang.NullPointerException
at java.util.zip.DeflaterOutputStream.(DeflaterOutputStream.java:84)
at java.util.zip.DeflaterOutputStream.(DeflaterOutputStream.java:142)
at java.util.zip.ZipOutputStream.(ZipOutputStream.java:118)
at java.util.zip.ZipOutputStream.(ZipOutputStream.java:104)
at org.apache.poi.openxml4j.opc.ZipPackage.saveImpl(ZipPackage.java:435)
... 4 more

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  • myleo_lost-a-horse 2016-03-03 02:34
    关注

    明显的空指针：Exception in thread "main" org.apache.poi.openxml4j.exceptions.OpenXML4JRuntimeException: Fail to save: an error occurs while saving the package : null
    Caused by: java.lang.NullPointerException
    是不是你指定的路径不存在，或者权限问题

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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