Spring 集成mongodb实例

注意：spring-data-mongodb的版本在1.9.2，需要spring4.0的版本，如果此时版本低于4.0，启动时会报错，

报错信息如下：

springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.data.mongodb.core.MongoTemplate com.iflytek.ecss.service.MongoService.mongoTemplate; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoTemplate' defined in URL [file:/F:/wokeplace/mongotest/target/mongotest/WEB-INF/classes/applicationContext-mongodb.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.data.mongodb.core.MongoTemplate]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/objenesis/ObjenesisStd

 

 

 

现在开始集成mongo

 

 1、使用maven，的pom需要的依赖

 

1、配置maven依赖
<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-mongodb</artifactId>
    <version>1.9.2.RELEASE</version></dependency>



2、mongodb配置（）在已有的配置文件里导入

<!--导入Mongo->
<import resource="applicationContext-mongodb.xml"/>

下面就是applicationContext-mongodb.xml文件配置
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mongo="http://www.springframework.org/schema/data/mongo"
xsi:schemaLocation="http://www.springframework.org/schema/data/mongo
          http://www.springframework.org/schema/data/mongo/spring-mongo-1.8.xsd
          http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-4.2.xsd">
<!-- mongo对象 -->
<mongo:mongo-client id="mongo" replica-set="${mongo.hostport}">
        <mongo:client-options connections-per-host="${mongo.connectionsPerHost}"
threads-allowed-to-block-for-connection-multiplier="${mongo.threadsAllowedToBlockForConnectionMultiplier}"
connect-timeout="${mongo.connectTimeout}"
max-wait-time="${mongo.maxWaitTime}"
socket-keep-alive="${mongo.socketKeepAlive}"
socket-timeout="${mongo.socketTimeout}" />
    </mongo:mongo-client>
    <mongo:db-factory dbname="database" mongo-ref="mongo" />
    <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
        <constructor-arg ref="mongo" />
        <constructor-arg name="databaseName" value="${mongo.databaseName}" />
    </bean>
</beans>


属性实例：
application.properties 文件

###mongo
mongo.hostport=127.0.0.1:27017
mongo.connectionsPerHost=8
mongo.threadsAllowedToBlockForConnectionMultiplier=4
#连接超时时间
mongo.connectTimeout=1000
#等待时间
mongo.maxWaitTime=1500
mongo.autoConnectRetry=true
mongo.socketKeepAlive=true
#Socket超时时间
mongo.socketTimeout=1500
mongo.slaveOk=true
mongo.databaseName=userinfo

实例代码：

package com.iflytek.ecss.service;
import com.iflytek.ecss.model.UserModel;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
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 org.springframework.stereotype.Service;
import java.util.List;
/**
 * Created by ss on 2017/4/18.
 */
@Service
public class MongoService {

    @Autowired
private MongoTemplate mongoTemplate;
    public void insert(UserModel userModel) {
        mongoTemplate.save(userModel);
}


    public UserModel findModel(String openid) {
        Query query = Query.query(Criteria.where("openId").is(openid));
UserModel userModel = mongoTemplate.findOne(query, UserModel.class);
        return userModel;
}


    public List<UserModel> findModelList(String telNo) {

        //精确查询
Query query = Query.query(Criteria.where("telNo").is(telNo));
//针对数组里进行and查询
Query query1 = Query.query(Criteria.where("adress").all("aaaa", "bbbb"));
//正则匹配
Query query2 = Query.query(Criteria.where("adress").regex("nihao"));
List<UserModel> userModels = mongoTemplate.find(query, UserModel.class);
        return userModels;
}

    //更新
public void upset() {
        Query query = Query.query(Criteria.where("openId").is("7ccc61dd-bd79-4aa8-baa3-30f7845e8b11"));
Update update = Update.update("nickName", "tom");
//只更新第一条
mongoTemplate.updateFirst(query, update, UserModel.class);
//更新多条
mongoTemplate.updateMulti(query, update, UserModel.class);
//有则更新，没有则插入
mongoTemplate.upsert(query, update, UserModel.class);
}

    //删除
public void del() {
        Query query = Query.query(Criteria.where("openId").is("7ccc61dd-bd79-4aa8-baa3-30f7845e8b11"));
mongoTemplate.remove(query, UserModel.class);
}

}