用groovy写抓票程序

于是用groovy写了个程序, 用来抓取火车票信息, 网上相关的程序还不少, 我只是用groovy来练练手而已, 本来可以完善一下, 像这个(http://www.cnblogs.com/guozili/archive/2011/01/19/1939157.html)可以从多个网站抓取, 像这个(http://www.notedit.com/2010/11/%E6%8A%A2%E7%81%AB%E8%BD%A6%E7%A5%A8%E7%9A%84%E7%A8%8B%E5%BA%8F/)可以定时抓取, 本来我想通过定时抓取发消息的, 后来搞到了票, 就这样吧.

class GetTicket {
final static String host = "http://hz.58.com/huochepiao/?StartStation=%25u676D%25u5DDE&EndStation=%25u5B9C%25u660C"
// 最早发车时间
final static int earliest = 120
// 已经确认无票的过滤掉
final static List filterList = [
"http://hz.58.com/huochepiao/4538967059457x.shtml",
"http://hz.58.com/huochepiao/4536633437697x.shtml"
]
def void get() {
def htmlSource =  new Http().get(host).source.toString()
int i = 0
LinkedList<Entry> list = [] as LinkedList<Entry>;
htmlSource.eachLine{
if (i > 0 && i <= 4) {
switch(i) {
case 1:
list[list.size()-1].location = it.trim()
break;
case 2:
list[list.size()-1].number = it.trim()
break;
case 3:
list[list.size()-1].type = it.trim()
break;
case 4:
def matcher = it.trim() =~ /(.+)<\/a>/
def pair = matcher[0][1].split(" ")
pair[1] = pair[1].replaceAll(/月|日/, "")
list[list.size()-1].count = pair[0]
list[list.size()-1].date = pair[1]
if (Integer.valueOf(pair[1]) < earliest) {
list.removeLast()
}
break;
}
i++
return;
}else {
i = 0;
}
if (it ==~ /^ +<a href="http:\/\/hz\.58\.com\/huochepiao.+/){
def matcher = it =~ /"(http:\/\/hz\.58\.com\/huochepiao.+?)"/
def url = matcher[0][1].trim()
if (filterList.contains(url)) {
return;
}
Entry entry = [:] as Entry
entry.url = url
list << entry
i++
// 临近站信息
matcher = it =~ /.+>(.+)$/
if (matcher.matches()) {
entry.location = matcher[0][1].trim()
i++
}
}
}
list = list.sort()
list.each{ println "${it.date}\t${it.count}\t ${it.type}\t ${it.number}\t ${it.location}\t ${it.url}" }
}
}
class Entry implements Comparable{
def url
def location
def number
def type
def count
def date
int compareTo( def other) {
return Integer.valueOf(other.date) - Integer.valueOf(date)
}
@Override
public String toString() {
return ToStringBuilder.reflectionToString(this);
}
}

注: 解析html用到了com.googlecode.groovyhttp.Http 这个lib(http://code.google.com/p/groovy-http/)

输出结果: