需要引入Jsoup依赖:
<dependency>
<!-- jsoup HTML parser library @ https://jsoup.org/ -->
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.12.1</version>
</dependency>
Jsoup相关依赖:https://jsoup.org/
其他需要的是 FileHelper 类,参见:https://www.cnblogs.com/zifeiy/p/9224569.html
(不过我们这边可能需要将"UTF-8"改成"GBK" ~)
然后实现的类如下:
package com.zifeiy.cf_data_get.handle;
import java.io.File;
import java.io.IOException;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;
import com.zifeiy.cf_data_get.assist.FileHelper;
public class SubmissionInfoGet {
public void getSubmission(int contestId, int submissionId) throws IOException {
String urlString = "http://codeforces.com/contest/" + contestId + "/submission/" + submissionId;
Document doc = Jsoup.connect(urlString).get();
System.out.println("title = " + doc.title());
String dirString = "D:/codeforces/" + submissionId;
File dir = new File(dirString);
if (dir.exists() == false) dir.mkdirs();
File dataDir = new File(dirString + File.separator + "data");
if (dataDir.exists() == false) dataDir.mkdirs();
// 代码
String codeString = doc.getElementById("program-source-text").text();
File codeFile = new File(dirString + File.separator + "std.cpp");
FileHelper.writeFile(codeFile, codeString);
Elements inputElements = doc.getElementsByClass("file input-view");
Elements outputElements = doc.getElementsByClass("file answer-view");
int sz = inputElements.size();
int cnt = 0;
for (int i = 0; i < sz; i ++) {
String inputTextString = inputElements.get(i).getElementsByClass("text").get(0).text();
String outputTextString = outputElements.get(i).getElementsByClass("text").get(0).text();
if (inputTextString.endsWith("...") == false) {
// System.out.println("[input]\n" + inputTextString + "\n[output]\n" + outputTextString + "\n[end]");
cnt ++;
File inputFile = new File(dirString + File.separator + "data" + File.separator + cnt + ".in");
FileHelper.writeFile(inputFile, inputTextString);
File outputFile = new File(dirString + File.separator + "data" + File.separator + cnt + ".out");
FileHelper.writeFile(outputFile, outputTextString);
}
}
}
// main for test
public static void main(String[] args) throws IOException {
new SubmissionInfoGet().getSubmission(1169, 54847813);
}
}
其中,contestId
和 submissionId
分别对应 比赛Id 和 提交Id 。
原文地址:https://www.cnblogs.com/zifeiy/p/10963006.html
时间: 2024-10-13 01:19:41