需求效果
baidu
SpringBuffer进行网址提取操作
代码实现
StringBuffer sbf = new StringBuffer(str);
sbf = new StringBuffer(sbf.substring(sbf.indexOf(".")+1));
sbf = new StringBuffer(sbf.substring(0,sbf.indexOf(".")));
System.out.println(sbf);
System.out.println(sbf.toString().toUpperCase());