I am inserting smileys into strings. I have encoded the smileys in a certain format and when before I display the string in a component I need to replace all occurrences of the smiley codes with HTML img tags so they will show up as images. So here is the format of my smileys -
&:) ==> smile
&:O ==> shocked
&:( ==> sad
etc...
So say I have the following string -
Did you hear the news &:O. I won a million dollars!! &:)
I need to find, and then replace all the smiley codes with HTML like
<img src='file:C:/images/sad.png'/>
对于要替换的每种笑脸类型,最好使用String.replaceAll(String what, String withWhat)
我认为最好使用String.replace而不是String.replaceAll
这样您就不必处理转义的正则表达式模式了……它只是一个字面的替换。
define this somewhere:
static HashMap<String, String> smileys = new HashMap<String, String>();
then fill it with the smileys (String) and their html representation:
smileys.put("&:)", "<img src='file:C:/images/sad.png'/>");
smileys.put("&:O", "<img src='file:C:/images/sad.png'/>");
smileys.put("&:(", "<img src='file:C:/images/sad.png'/>");
replacing smileys is done by replacing every occurrence of a smiley code by its html representation, just loop the hashmap like this:
public String replaceSmileys(String text){
for(Entry<String, String> smiley : smileys.entrySet())
text = text.replaceAll(smiley.getKey(), smiley.getValue());
return text;
}
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