我正在尝试从站点解析以下行:
<div class="search-result__price">£2,995</div>
我只想要它的 2995 部分,但我很难做到。这是我的代码;它目前能够解析所有包含 £ 符号的行并在网站中显示所有货币。请帮忙!
public class parser {
private static String string1 = "£";
private String testURL = "http://www.autotrader.co.uk/search/used/cars/bmw/1_series/postcode/tn126bg/radius/1500/onesearchad/used%2Cnearlynew%2Cnew/quicksearch/true/page/2";
private ArrayList<String> list = new ArrayList<String>();
private ArrayList<Integer> prices = new ArrayList<Integer>();
private int averagePrice;
private int start;
private int finish;
public parser() throws IOException {
URL url = new URL(testURL);
Scanner scan = new Scanner(url.openStream());
boolean alreadyHit = false;
while (scan.hasNext()) {
String line = scan.nextLine();
if (line.contains(string1)) {
list.add(line);
start = line.indexOf("£");
line = line.substring(start);
for (int i = 0; i < line.length(); i++) {
if (((line.charAt((i)) == ' ') || ((line.charAt((i)) == '<'))) && (alreadyHit == false)) {
finish = i;
alreadyHit = true;
}
}
alreadyHit = false;
line = line.substring(0, finish);
line = line.trim();
line = line.replace("£", "");
line = line.replace(",", "");
try {
int price = Integer.parseInt(line);
prices.add(price);
} catch (Exception e) {
}
}
}
}
public static void main(String args[]) throws IOException {
parser p = new parser();
for (Integer x : p.prices) {
System.out.println(x);
}
}
}
最佳答案
与其逐行使用 Scanner
或使用正则表达式 (!) 获取清晰的 HTML 内容,不如使用 jsoup 之类的东西:
Document doc = Jsoup
.connect(testURL)
.userAgent("Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:25.0) Gecko/20100101 Firefox/25.0")
.timeout(60000).get();
Elements elems = doc.select("div .search-result__price");
关于Java网站解析器,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26640671/