sourny的专栏

Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'areaPriceController' method 原因：一个Controller中，有多个相同的@RequestMapping("/xxx")

今天写代码时把 String[] 数组使用Arrays.asList方法直接转成List，然后想在list.add一个字符结果却报Exception in thread "main" java.lang.UnsupportedOperationException at java.util.AbstractList.add(AbstractList.java:148) at java.uti