今天在写项目时，将String类型转换为Integer类型爆出此异常，记录如下：

代码如下：

1 String a = "2222222222";               //10个2

 Integer b = Integer.valueOf(a);        //把String类型转换为Integer类型

异常如下：

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" alt="" />

原因&解决办法：Integer在32位的编译环境下，存储长度为32位。即-2^31~2^31-1; 即-2,147,483,648~2,147,483,647，此时将Integer换成BigInteger类型，问题解决

代码如下：

String a = "2222222222";            //同样是10个2

BigInteger b = new BigInteger(a);   //String 转换为 BigInteger

重要的事情说三遍：

欢迎指出错误和不对的地方，以及提出建议，我会及时更新在博客里！

欢迎指出错误和不对的地方，以及提出建议，我会及时更新在博客里！

欢迎指出错误和不对的地方，以及提出建议，我会及时更新在博客里！

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