String a="aaa|bb|cc|";
String a1=a.replaceAll("|","<br/>");
System.out.println(a1);
StringTokenizer st=new StringTokenizer(a,"|");
a1="";
while(st.hasMoreTokens())
a1+=st.nextElement()+"<br/>";
System.out.println(a1);
String a1=a.replaceAll("|","<br/>");
System.out.println(a1);
StringTokenizer st=new StringTokenizer(a,"|");
a1="";
while(st.hasMoreTokens())
a1+=st.nextElement()+"<br/>";
System.out.println(a1);
String a1=a.replaceAll("\\|","<br/>");
System.out.println(a1);搞定
String a="aaa|bb|cc|";
String a1=a.replaceAll("[|]","<br/>");
System.out.println(a1);
String a="aaa|bb|cc|";
String a1=a.replaceAll("[\\|]","<br/>");
System.out.println(a1);
在正规表达式中替换literal最好前边加上\\
故a.replaceAll("\\|","<br/〉");