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发表于 2019-10-11 16:09:29
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显示全部楼层
没用过Thumbnails
java.lang.NumberFormatException 是数值转换异常
java.lang.NumberFormatException: For input string: "" 意思是试图将空字符串转换为一个数值时发生错误
建议以debug的方式根据以下异常堆栈信息, 自下而上的调试源码
at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.base/java.lang.Integer.parseInt(Integer.java:662)
at java.base/java.lang.Integer.parseInt(Integer.java:770)
at com.github.jaiimageio.impl.common.ImageUtil.processOnRegistration(ImageUtil.java:1401)
at com.github.jaiimageio.impl.plugins.wbmp.WBMPImageWriterSpi.onRegistration(WBMPImageWriterSpi.java:103)
at java.desktop/javax.imageio.spi.SubRegistry.registerServiceProvider(ServiceRegistry.java:788)
at java.desktop/javax.imageio.spi.ServiceRegistry.registerServiceProvider(ServiceRegistry.java:330)
at java.desktop/javax.imageio.spi.IIORegistry.registerApplicationClasspathSpis(IIORegistry.java:212)
at java.desktop/javax.imageio.spi.IIORegistry.<init>(IIORegistry.java:136)
at java.desktop/javax.imageio.spi.IIORegistry.getDefaultInstance(IIORegistry.java:157)
at java.desktop/javax.imageio.ImageIO.<clinit>(ImageIO.java:66)
at com.imooc.o2o.util.ImageUtil.main(ImageUtil.java:90)
检查引的包是否有冲突, 引的包版本是否匹配
检查下你的图片是否有问题(不存在, 路径错误, 图片有问题, 无权限...)?
我能想到的排查思路就这些了
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