mongoDB包全含查询

场景：

关键词：java多线程使用

需求：得到数据库里某个字段被上面关键词包含的数据，如：多线程、使用、java

多线程比对的工具类

package com.utils.mongo;

import org.bson.Document;

import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongoutil.MongoDBUtil;

import groovy.transform.Synchronized;

/**
* 针对mongo数据库字段全包含多线程查询工具类
*
* @author leo.li
*
*/
public class FullInclusionUtil implements Runnable {

   private int start = 0;
   private int limit = 0;
   private String myWord = "";
   MongoCollection<Document> coll = null;

   public FullInclusionUtil(String dbName, String collName, int start, int end) {
       this.start = start;
       this.limit = end;
       coll = MongoDBUtil.instance.getCollection(dbName, collName);
   }

   @Override
   public void run() {
       quyerMongo();
   }

   @Synchronized
   private void quyerMongo() {
       MongoCursor<Document> cursor = coll.find().skip(start).limit(limit).iterator();
       System.out.println(Thread.currentThread().getName());
       int i = 0;
       while (cursor.hasNext()) {
           i++;
           if (QueryStart.result) {
               System.out.println(Thread.currentThread().getName() + "停止" + i);
               return;
           }

           String keyword = cursor.next().getString("keyword");
           System.out.println(Thread.currentThread().getName() + "\t查到结果\t" + keyword + i);
           if (keyword.contains(myWord) || myWord.contains(keyword)) {
               QueryStart.result = true;
               System.out.println(Thread.currentThread().getName() + "\t匹配结果\t" + keyword + i);
           }
       }
   }

}

需要将数据查询到内从中，所以我使用了多线程可以快一点

package com.utils.mongo;

public class QueryStart {

public volatile static boolean result = false;

public static void main(String[] args) {

       FullInclusionUtil full1 = new FullInclusionUtil("mycol", "emotion", 0, 500);
       Thread thread1 = new Thread(full1, "现程1");
       thread1.start();
       FullInclusionUtil full2 = new FullInclusionUtil("mycol", "emotion", 500, 500);
       Thread thread2 = new Thread(full2, "现程2");
       thread2.start();
   }

}

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