mongo

1.例子可以跑通，需要的环境是mongo2.2+spring+data的包。
Mongo的增加，修改，删除，模糊查询
Mongo是没有like查询的方式的 要进行模糊匹配只能借助于正则表达式



package org.spring.mongodb.example;

import static org.springframework.data.mongodb.core.query.Criteria.where;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.data.mongodb.core.MongoOperations;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;

import com.mongodb.Mongo;

public class MongoApp {
private static final Log log = LogFactory.getLog(MongoApp.class);
public static void main(String[] args) throws Exception {
MongoOperations mongoOps = new MongoTemplate(new SimpleMongoDbFactory(new Mongo(), "database"));

// Insert is used to initially store the object into the database.
mongoOps.insert(new Person("Joe", 34));
mongoOps.insert(new Person("陈林", 34));
mongoOps.insert(new Person("陈好", 34));
mongoOps.insert(new Person("Andi", 34));
mongoOps.insert(new Person("大本", 34));
mongoOps.insert(new Person("老A", 34));

// Update
mongoOps.updateFirst(new Query(where("name").is("Joe")), new Update().update("age", 29), Person.class);
Person p = mongoOps.findOne(new Query(where("name").is("Joe")), Person.class);
log.info("Updated: " + p);
// adding 5 years
mongoOps.updateFirst(new Query(where("name").is("Joe")), new Update().inc("age", 1), Person.class);
p = mongoOps.findOne(new Query(where("name").is("Joe")), Person.class);
mongoOps.updateFirst(new Query(where("name").is("Joe")), new Update().update("name", "chenjinlin"), Person.class);
p = mongoOps.findOne(new Query(where("name").is("chenjinlin")), Person.class);

List<Person> person = mongoOps.find(new Query(new Criteria(      "name").regex(".*?"+"陈"+".*")).limit(100), Person.class); 
log.info("like select: " + person);

person = mongoOps.find(new Query(new Criteria(      "name").regex(".*?"+"A"+".*")).limit(100), Person.class); 
log.info("like select: " + person);


// Delete
mongoOps.remove(p);
// Check that deletion worked
List<Person> people = mongoOps.findAll(Person.class);
log.info("Number of people = : " + people.size());
mongoOps.dropCollection(Person.class);
}

}