1:首先需要下载mongodb的java驱动包
https://github.com/mongodb/mongo-java-driver/downloads
2:需要下载spring集成mongodb的包
下载途径:
a:去csdn下
b:去http://projects.spring.io/spring-data-mongodb/ 使用Maven方式下载
c:网上其他地方找
要下载的包如下
spring-data-commons-core-1.2.0.M2.jar
spring-data-mongodb-1.0.0.M4.jar
spring-data-mongodb-cross-store-1.0.0.M4.jar
spring-data-mongodb-log4j-1.0.0.M4.jar
为什么选择很老的1.0.0版本,是因为我的spring框架是3.0.5的,不知道是不是spring版本低了的原因,选择高点的如1.4.0反正会报错
3:ok 包包都⑦了,开始编码了,先说说配置文件
web.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
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http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
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<!– spring配置文件目录–>
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<context-param>
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<param-name>contextConfigLocation</param-name>
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<param-value>classpath:spring/*.xml</param-value>
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</context-param>
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<listener>
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<listener-class>
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org.springframework.web.context.ContextLoaderListener
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</listener-class>
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</listener>
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</web-app>
application-global.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:aop="http://www.springframework.org/schema/aop"
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xmlns:context="http://www.springframework.org/schema/context"
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xmlns:mvc="http://www.springframework.org/schema/mvc"
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xmlns:mongo="http://www.springframework.org/schema/data/mongo"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
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http://www.springframework.org/schema/aop
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http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context-3.0.xsd
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http://www.springframework.org/schema/mvc
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http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
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http://www.springframework.org/schema/data/mongo
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http://www.springframework.org/schema/data/mongo/spring-mongo.xsd">
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<!– 获取配置文件属性 –>
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<bean id="placeholderConfig"
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class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
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<property name="location">
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<value>classpath:db.properties</value>
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</property>
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</bean>
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<!– Default bean name is 'mongo' –>
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<!– 连接池配置详细查看http://api.mongodb.org/java/2.7.2/com/mongodb/MongoOptions.html#connectionsPerHost
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或者http://www.cnblogs.com/huangfox/archive/2012/04/01/2428947.html
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—>
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<mongo:mongo host="${datasource.host}" port="${datasource.port}">
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<mongo:options connections-per-host="10"
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threads-allowed-to-block-for-connection-multiplier="10"
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auto-connect-retry="true" />
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</mongo:mongo>
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<!– Spring提供的mongodb操作模板–>
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<bean id="mongoTemplate"
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class="org.springframework.data.mongodb.core.MongoTemplate">
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<constructor-arg ref="mongo" />
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<constructor-arg name="databaseName" value="${datasource.dbname}" />
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</bean>
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</beans>
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<strong><span style="color:#ff0000;">db.properties</span></strong>
#datasource.host=localhost
datasource.host=12.35.174.48
#datasource.port=27017
datasource.port=9933
datasource.dbname=logDB
datasource.username=test
datasource.passwd=test
4:spring的db操作模板MongoTemplate
具体使用参考百度或者官网http://docs.spring.io/spring-data/data-mongodb/docs/current/api/org/springframework/data/mongodb/core/MongoTemplate.html#getDb()
程序启动时,注入MongoTemplate模板
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package dao.impl;
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import org.springframework.beans.BeansException;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.ApplicationContextAware;
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import org.springframework.data.mongodb.core.MongoTemplate;
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import com.mongodb.DB;
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public class AbstractBaseMongoTemplete implements ApplicationContextAware {
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protected MongoTemplate mongoTemplate;
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protected DB db;
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/**
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* 设置mongoTemplate
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* @param mongoTemplate the mongoTemplate to set
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*/
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public void setMongoTemplate(MongoTemplate mongoTemplate) {
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this.mongoTemplate = mongoTemplate;
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}
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public void setApplicationContext(ApplicationContext applicationContext)
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throws BeansException {
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//System.out.println("ApplicationContextAware开始执行setApplicationContext方法");
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MongoTemplate mongoTemplate = applicationContext.getBean("mongoTemplate", MongoTemplate.class);
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setMongoTemplate(mongoTemplate);
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db=mongoTemplate.getDb();
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}
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}
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5:具体操作类接口
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public interface IDbDao {
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/**
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* 插入单个
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* @param obj
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* @return
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*/
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public abstract DBObject insert(DBObject obj);
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/**
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* 插入json格式字符串
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* @param jsonStr
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* @return
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*/
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public abstract WriteResult insert(String jsonStr);
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/**
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* 批量插入
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* @param list
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*/
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public abstract void insertBatch(List<DBObject> list);
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/**
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* 插入json文件
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* @param list
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*/
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public abstract void insertFile(String fileName);
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/**
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* 删除单个
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* @param obj
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*/
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public abstract void delete(DBObject obj);
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/**
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* 批量删除
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* @param list
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*/
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public abstract void deleteBatch(List<DBObject> list);
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/**
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* 修改
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* @param searchFields 要修改的查询条件
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* @param updateFields 修改的值
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*/
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public abstract void update(DBObject searchFields,DBObject updateFields);
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/**
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* 按条件查询
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* @return
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*/
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public abstract List<BasicDBObject> find();
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/**
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* 按条件查询
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* @param query 查询条件
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* @return
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*/
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public abstract List<BasicDBObject> find(DBObject query);
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/**
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* 排序查询
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* @param query
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* @param sort new BasicDBObject("age", true) 则对age字段降序 注意1是升序,-1是降序
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract List<BasicDBObject> find(DBObject query,DBObject sort);
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/**
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* 分页查询
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* @param query 查询条件
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* @param start 起始
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* @param limit 每页多少数据
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* @return
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*/
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public abstract List<BasicDBObject> find(DBObject query,int start,int limit);
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/**
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* 分页查询
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* @param query 查询条件
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* @param sort 排序
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* @param start 起始
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* @param limit 每页多少数据
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* @return
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*/
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public abstract List<BasicDBObject> find(DBObject query,DBObject sort,int start,int limit);
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/**
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* 按条件查询
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract List<Object> find(Class _class);
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/**
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* 按条件查询
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* @param query 查询条件
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract List<Object> find(DBObject query,Class _class);
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/**
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* 排序查询
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* @param query 查询条件
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* @param sort new BasicDBObject("age", true) 则对age字段降序 注意1是升序,-1是降序
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract List<Object> find(DBObject query,DBObject sort,Class _class);
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/**
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* 分页查询
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* @param query 查询条件
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* @param start 起始
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* @param limit 每页多少数据
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract List<Object> find(DBObject query,int start,int limit,Class _class);
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/**
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* 分页查询
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* @param query 查询条件
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* @param sort 排序
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* @param start 起始
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* @param limit 每页多少数据
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract List<Object> find(DBObject query,DBObject sort,int start,int limit,Class _class);
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/**
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* 按条件查询,返回查询个数
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* @param query 查询条件
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* @return
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*/
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public abstract int findCount(DBObject query);
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/**
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* 排序查询,返回查询个数
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* @param query
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* @param sort new BasicDBObject("age", true) 则对age字段降序 注意1是升序,-1是降序
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* @param _class 要返回的实体bean类型
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* @return
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*/
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public abstract int findCount(DBObject query,DBObject sort);
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/**
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* 获取总数
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* @param obj
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* @return
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*/
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public abstract long getCount(DBObject obj);
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/**
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* 获取总数
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* @param obj
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* @return
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*/
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public abstract long getCount();
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/**
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* 利用java驱动自带函数分组查询
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* @param key 用来分组文档的字段
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* @param cond 执行过滤的条件
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* @param initial reduce中使用变量的初始化
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* @param reduce reduce(参数:当前文档和累加器文档.)
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* @param fn
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* @return
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*/
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public abstract DBObject group(DBObject key,DBObject cond,DBObject initial,String reduce,String fn );
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/**
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* 使用聚合框架(参考http://docs.mongodb.org/manual/reference/sql-aggregation-comparison/)
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* @param firstDb
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* @param optionDb
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* @return
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*/
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public abstract AggregationOutput aggregation(DBObject firstDb,DBObject …optionDb);
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public abstract DBCollection getCollection();
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/**
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* 创建索引
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* @param obj new BasicDBObject("name", 1)); // 1代表升序 -1代表降序
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*/
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