用竖线分割的字符串的解析方式

public static void main( String[] args ) throws IOException
    {
        String str = "a|b";
        String[] strs = str.split("[|]");
        System.out.println(strs.length);
        if(strs.length>0){
            for(String s : strs){
                System.out.println("===:"+s);
            }
        }
        System.out.println(Arrays.asList(str.split("[|]")));
         
    }

结果:

2
===:a
===:b
[a, b]