“java.lang.NullPointerException”的最常见原因处理XML时？ [英] Most common cause of "java.lang.NullPointerException" when dealing with XMLs?

问题描述

我最强的领导是处理传入XML的代码实际上是接收到一个无效/不完整的文件，因此导致DOM解析失败。任何建议？

解决方案

不完整的文件绝对是开始寻找的地方。我会在您解析之前打印出文件，以查看发送到解析器的内容。如果不完整，这将是显而易见的。如果无效，您将有一些小小的搜索。

My strongest lead is that the code who deals with the incoming XMLs is actually receiving an invalid/incomplete file hence failing the DOM parsing. Any suggestions?

解决方案

Incomplete file is definitely the place to start looking. I'd print out the file right before the point you parse it to see what's getting sent to the parser. If it's incomplete it will be obvious. If it's invalid, you'll have a little searching to do.

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