请教一个关于java正则表达式的问题

一长串字符串中有字母数字逗号句号感叹号冒号空格退格符回车，我需要捕获的是所有“字母数字”的任意组合（区分大小写），而这些组合又由“逗号句号感叹号冒号空格退格符回车”的任意组合隔开，请问我该怎么写呢？
比如 “fdjfk23jkj0 ,. djfk !s2SJDKd djfk 232 : ! d .. s”字符串经过操作返回这样一个列表[fdjfk23jkj0,djfk,s2SJDKd,djfk,232,d,s]

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;

class Test {
    public static void main(String[] args) throws PatternSyntaxException {
        String subjectString = "fdjfk23jkj0 ,. djfk !s2SJDKd djfk 232 : ! d .. s";
        List<String> matchList = new ArrayList<String>();
        Pattern regex = Pattern.compile("\\p{Alnum}+", Pattern.MULTILINE);
        Matcher regexMatcher = regex.matcher(subjectString);
        while (regexMatcher.find()) {
            matchList.add(regexMatcher.group(0));
        }
        System.out.println(matchList);
    }

}

 Pattern pattern = Pattern.compile("[a-z\\d]+",Pattern.CASE_INSENSITIVE);

楼上说的很对哦。
看代码：
public static void main(String[] args) {
String str = "fdjfk23jkj0 ,. djfk !s2SJDKd djfk 232 : ! d .. s";
Pattern pattern = Pattern.compile("([a-z\d]+)", Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(str);
ArrayList list = new ArrayList();
while(matcher.find()){
String result = matcher.group(1);
list.add(result);
}
System.out.println(list);
}