Java 教程
Java 實(shí)例 - 網(wǎng)頁抓取
Java 實(shí)例以下實(shí)例演示了如何使用 net.URL 類的 URL() 構(gòu)造函數(shù)來抓取網(wǎng)頁：
Main.java 文件
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.net.URL;
public class Main {
public static void main(String[] args)
throws Exception {
URL url = new URL("");
BufferedReader reader = new BufferedReader
(new InputStreamReader(url.openStream()));
BufferedWriter writer = new BufferedWriter
(new FileWriter("data.html"));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
writer.write(line);
writer.newLine();
}
reader.close();
writer.close();
}
}
以上代碼運(yùn)行輸出結(jié)果為（網(wǎng)頁的源代碼，存儲(chǔ)在當(dāng)前目錄下的 data.html 文件中）：
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=11,IE=10,IE=9,IE=8"/>……其他擴(kuò)展