本文共 641 字，大约阅读时间需要 2 分钟。
Java 网络相关操作
import java.net.*;import java.io.*;public class URLReader { public static void main(String[] args) throws Exception { URL url = new URL("http://www.netkiller.cn/"); BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); String inputLine; while ((inputLine = in.readLine()) != null) System.out.println(inputLine); in.close(); }} 改变java.io.tmpdir的默认值
System.setProperty("java.io.tmpdir", "/vat/tmp");System.out.println(System.getProperty("java.io.tmpdir"));