关于替换忽略大小写的问题

import java.util.regex.*; String str= "J2EE学习笔记J2ee and j2ee "; String search= "j2ee "; Pattern p = Pattern.compile(search, Pattern.CASE_INSENSITIVE); Matcher m = p.matcher(str); StringBuffer sb = new StringBuffer(); while (m.find()) { m.appendReplacement(sb, " <font color=\ "red\ "> "+str.substring(m.start(), m.end())+ " </font> "); } m.appendTail(sb); System.out.println(sb.toString());