java split 一個或多個空格

package com.howso.deeplan.flink.main;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.PrintStream;import java.io.PrintWriter;/** * @author Administrator * */public class Main {public static void main(String[] args) throws IOException {/*FileOutputStream out = new FileOutputStream("temp.txt");PrintStream p = new PrintStream(out);p.println("sadfasdf");p.close();*/String str = "fasdfwe   qwfqwef  4113r1e asdf";for (String i : str.split(" +")) {System.out.println(i);}}}