MongoDB是面向文档的非关系型数据库,数据模型是一种类似于JSON的结构,在数据库中存的是各种各样的JSON。官网下载地址:https://www.mongodb.com/download-center/enterprise
一、以Centos为例,安装mongoDB
1)下载安装包mongodb-linux-x86_64-rhel70-4.2.1.tgz,上传opt目录
2)解压安装包 tar -zxvf mongodb-linux-x86_64-rhel70-4.2.1.tgz
3)mv mongodb-linux-x86_64-rhel70-4.2.1/ /usr/local/mongodb
4)在bin目录,新增mongodb.conf配置文件
dbpath = /data/db #数据文件存放目录,提前新建目录 logpath = /data/logs/mongodb.log #日志文件存放目录,提前新建目录 port = 27017 #端口 fork = true #以守护程序的方式启用,即在后台运行 bind_ip=0.0.0.0 #允许所有的连接 auth=true #是否安全检验
5)运行服务
./mongod --config mongodb.conf
二、创建数据库与用户
1)修改配置参数,重启服务
auth=false #是否安全检验
2)登录服务,跳过权限验证,创建应用数据库与用户,新增成功以后,改回安全校验模式。
2.1)切换数据库 use cmp; 创建用户 2.2)db.createUser({user:"cmp",pwd:"123456",roles:[{role:"dbAdmin",db:"cmp"},{role:"readWrite",db:"cmp"}]});
3)使用NoSQLBooster客户端登录
三、Spring整合MongoDB
1)引入MongoDB的pom文件
4.0.0com.demospringmongodb1.0-SNAPSHOTspringmongodbhttp://www.example.comUTF-81.71.7org.springframework.dataspring-data-mongodb1.8.6.RELEASEorg.springframeworkspring-test4.1.9.RELEASEorg.slf4jslf4j-log4j121.7.25junitjunit4.12test
2)Spring配置文件
mongodb.properties
mongodb.hostport=服务IP端口 mongodb.db= mongodb.username= mongodb.password=
spring-mongodb.xml
3)编码
3.1实体类
package com.demo.bean; import org.springframework.data.annotation.Id; import org.springframework.data.mongodb.core.index.Indexed; import org.springframework.data.mongodb.core.mapping.Document; /** * 功能说明: * */ @Document(collection = "user") public class User { @Indexed(unique = false) @Id private String uuid; private String name; private String age; public String getUuid() { return uuid; } public void setUuid(String uuid) { this.uuid = uuid; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getAge() { return age; } public void setAge(String age) { this.age = age; } @Override public String toString() { return "User{" + "uuid='" + uuid + '\'' + ", name='" + name + '\'' + ", age='" + age + '\'' + '}'; } }
3.2 数据层
package com.demo.service;import com.itep.bean.Page;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.mongodb.core.MongoTemplate;import org.springframework.data.mongodb.core.query.Query;import org.springframework.stereotype.Service;import java.util.List;/** * 功能说明: * */@Service("mongoDBService")public class MongoDBServiceImpl implements IMongoDBService{ @Autowired private MongoTemplate mongoTemplate; @Override public T findById(Class entityClass , String id) { return this.mongoTemplate.findById ( id,entityClass ); } @Override public ListfindAll(Class entityClass) { return this.mongoTemplate.findAll ( entityClass ); } @Override public void remove(Object obj) { this.mongoTemplate.remove ( obj ); } @Override public void add(Object obj) { this.mongoTemplate.insert ( obj ); } @Override public void saveOrUpdate(Object obj) { this.mongoTemplate.save ( obj ); } @Override public Long count(Class entityClass , Query query) { return this.mongoTemplate.count ( query,entityClass ); } @Override public ListfindByQuery(Class entityClass , Query query , Page page) { Long count = this.count ( entityClass,query ); if(page != null){ page.setRecordCount ( count.intValue () ); int pageNumber = page.getCurrentPage (); int pageSize = page.getPageSize (); query.skip ( (pageNumber-1) * pageSize).limit ( pageSize ); } return this.mongoTemplate.find ( query,entityClass ); } }
View Code
package com.demo.service;import com.itep.bean.Page;import org.springframework.data.mongodb.core.query.Query;import java.util.List;/** * 功能说明: * */public interface IMongoDBService { T findById(Class entityClass,String id); ListfindAll(Class entityClass); void remove(Object obj); void add(Object obj); void saveOrUpdate(Object obj); Long count(Class entityClass, Query query); ListfindByQuery(Class entityClass, Query query, Page page); }
View Code
3.3 单元测试
package com.demo; import com.itep.bean.User; import com.itep.service.IMongoDBService; import com.itep.service.UserService; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.data.domain.Sort; import org.springframework.data.mongodb.core.query.Criteria; import org.springframework.data.mongodb.core.query.Query; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import java.util.List; import java.util.UUID; @RunWith (SpringJUnit4ClassRunner.class) @ContextConfiguration(locations ="classpath:spring-mongodb.xml") public class AppTest { @Autowired private IMongoDBService mongoDBService; @Test public void query(){ Query query = new Query ( ); query.addCriteria ( Criteria.where ( "age" ).is ( "21" ) ); query.with ( new Sort ( new Sort.Order ( Sort.Direction.ASC ,"name") ) ); ListbyQuery = mongoDBService.findByQuery ( User.class , query , null ); System.out.println ("..." + byQuery); mongoDBService.findByQuery ( User.class , query , null ); } @Test public void insert(){ User user = new User(); String uuid = UUID.randomUUID ().toString ().replace ( "-","" ); System.out.println ("uuid:" + uuid); user.setName ( "mongodb" ); user.setUuid ( uuid ); user.setAge ( "21" ); mongoDBService.add ( user ); System.out.println ("执行成功"); } }