double string 转换
/**
* This class is converts a Double to a double-digit String
* (and vise-versa) by BeanUtils when copying properties.
*
* @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
*/
可以使用Double.toString()方法将double类型转换为String类型,例如:
double num = 3.1415926;
String str = Double.toString(num);