jsoup解析文件存入本地mongodb数据库

package Tomongo;import java.io.File;import java.io.IOException;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Set;import org.jsoup.Jsoup;import org.jsoup.nodes.Document;import org.jsoup.select.Elements;import com.mongodb.BasicDBObject;import com.mongodb.DB;import com.mongodb.DBCollection;import com.mongodb.MongoClient;public class MonGoTest {    public static void main(String[] args)throws IOException {        try {            //链接momgodb数据库             MongoClient client = new MongoClient("127.0.0.1",27017);             //查询所有的数据库名             @SuppressWarnings("deprecation")            List<String> databaseNames = client.getDatabaseNames();             for(String name:databaseNames){                 System.out.println(name);             }             //获得一个数据库连接             @SuppressWarnings("deprecation")            DB db = client.getDB("baidushujuku");             //查询该数据库所有的集合名             Set<String> collectionNames = db.getCollectionNames();             for(String name:collectionNames){                 System.out.println(name);             }             DBCollection  teacher_collection = db.getCollection("teacher3");               //循环读取本地文件                 String filepath="F:/webmagic/zhidao.baidu.com";                File file=new File(filepath);                if(file.isDirectory()){                String[] filelist=file.list();                for(int i=0;i<filelist.length;i++){                File input=new File(filepath+"\\"+filelist[i]);            // File input = new File("F:/webmagic/zhidao.baidu.com/new.txt");  //单个文档输入时候的测试用这一句             Document doc = Jsoup.parse(input,"UTF-8","http://zhidao.baidu.com/");              Elements one = doc.getElementsByClass("tableone");              String a=one.text();//map直接存储不了Elements ，所以转换为String             Elements two = doc.getElementsByClass("tabletwo");             String b=two.text();             Elements three = doc.getElementsByClass("tablethree");             String c=three.text();             Elements four = doc.getElementsByClass("tablefour");             String d=four.text();            //使用Map对象                Map<String, Object>  map1 =new HashMap<String, Object>();                map1.put("one", a);                map1.put("two", b);                map1.put("three", c);                map1.put("four", d);                teacher_collection.insert(new BasicDBObject(map1));           System.out.println("完成！");                    }                  }                }        catch (Exception e) {            e.printStackTrace();            }          }        }