/**
* 判断字符串是不是Integer
*
* @param str
* @return true OR false
* @see isNumeric("abc") = false
* @see isNumeric("123") = true
*/
public static boolean isInteger(String str) {
boolean result = true;
try {
Integer.parseInt(str);
} catch (Exception e) {
result = false;
}
return result;
}