Web应用程序在浏览器中显示字符串时，由于显示长度的限制，常常需要将字符串截取后再进行显示。

本文实现用Java实现按字节长度截取字符串。-Web applications in the browser to display the string, due to length restrictions, and often need to show the string after the interception. In this paper, using Java to achieve by the length byte string interception.