summary of exception occured in my development
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1 java.sql.exception: unique constraint,这类异常要考虑你执行的sql语句,是否违反了表的约束(唯一,不可为空,最大值。。。)
2 java.lang.reflect.invocationTargetException: 反射异常,通常用ssh三大框架的话,考虑bo的xml文件是否配置错误,一些标签错位问题,等
3 java.lang.ArrayIndexoutofBoundsException: 数组下标越界
4 java.lang.NullpointerException: 空指针
5 java.sql.SqlException: 操作数据库异常
6 java.lang.ClassCastException: 类型转换异常
7 java.util.NoSuchElementException:
8 java.lang.classNotFound(NoSuchMethod): jar版本,或者好多jar都有这个方法,引入了错误的jar方法
9 java.lang.NumberFormatExceptioln: 格式化成为数字时候异常
如果你有什么遇到异常,可以给我留言让我学习一下,谢谢
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