java.lang.NullPointerException: Attempt to get length of null array解决方法参考 - Code World

java.lang.NullPointerException: Attempt to get length of null array解决方法参考

Others 2021-11-25 07:58:52 views: null

判断空数据一定要先判断是否为null，再判断数据的长度。
if(array != null && array.leng != 0)
{
//数据不为空数据的判断。

}

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Origin blog.csdn.net/weixin_38107457/article/details/121176963

java.lang.NullPointerException: Attempt to get length of null array解决方法参考

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