对于这个问题，我感到非常困惑，只要有人可以给我澄清，我需要澄清一下。在我尝试打开连接后，该程序似乎只是停止了。
public void run() {
try {
System.out.println("Started to run");
//The first thing we do is connect with the website and instantiate a Scanner for the data.
URL address = new URL("http://www.example.com");
URLConnection connection = address.openConnection();
Scanner scan = new Scanner(connection.getInputStream());
System.out.println("Established connection");
//We lop off the first 10 blank lines that we'll scan, plus the <body> tag.
for (int i = 0; i <= 10; i++) {
scan.nextLine();
}
while (scan.hasNextLine()) {
synchronized(lock) {//SYNCHRONIZE
//First, we check if we've reached the end.
String temp = scan.next();
if (temp.equals("</body>")) {
break; //If we have, cease processing.
}
year = Integer.parseInt(temp);
boyName = scan.next(); boyPrevalence = scan.nextInt(); girlName = scan.next();
//(Handling the <br> HTML code.)
String next = scan.next();
next = next.replace("<br>", "");
girlPrevalence = Integer.parseInt(next);
//Now we update our almanac of boys' names for the given year.
if(boyNameMap.containsKey(year)) {
boyNameMap.get(year).put(boyName, boyPrevalence);
} else {
Map<String, Integer> tempmap = new HashMap<>();
tempmap.put(boyName, boyPrevalence);
boyNameMap.put(year, tempmap);
}
//And now we update our almanac of girls' names.
if(girlNameMap.containsKey(year)) {
girlNameMap.get(year).put(girlName, girlPrevalence);
} else {
Map<String, Integer> tempmap = new HashMap<>();
tempmap.put(girlName, girlPrevalence);
girlNameMap.put(year, tempmap);
}
System.out.println(year + "; " + boyName + "; " + boyPrevalence + "; "
+ girlName + "; " + girlPrevalence);
}//DESYNCHRONIZE
}
scan.close();
}
catch (IOException e) {
System.out.println("File not found.");
}
也就是说，“已建立的连接”从不打印。
最佳答案
您可以看到我正在尝试的代码和结果