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,创建应用数据库与用户
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
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.demo</groupId> <artifactId>springmongodb</artifactId> <version>1.0-SNAPSHOT</version> <name>springmongodb</name> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-mongodb</artifactId> <version>1.8.6.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>4.1.9.RELEASE</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.25</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> </dependencies> </project>
2)Spring配置文件
mongodb.properties
mongodb.hostport=服务IP端口 mongodb.db= mongodb.username= mongodb.password=
spring-mongodb.xml
<?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:context="http://www.springframework.org/schema/context" xmlns:mongo="http://www.springframework.org/schema/data/mongo" xsi:schemaLocation=" http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd"> <context:property-placeholder location="classpath:mongodb.properties" /> <context:component-scan base-package="com.itep"></context:component-scan> <!-- 定义mongo对象,对应的是mongodb官方jar包中的Mongo,replica-set设置集群副本的ip地址和端口 --> <mongo:mongo id="mongo" replica-set="${mongodb.hostport}"> <!-- 一些连接属性的设置 --> <mongo:options connections-per-host="8" threads-allowed-to-block-for-connection-multiplier="4" connect-timeout="20000" max-wait-time="20000" auto-connect-retry="true" socket-keep-alive="true" socket-timeout="20000" slave-ok="true" write-number="1" write-timeout="0" write-fsync="true" /> </mongo:mongo> <mongo:repositories base-package="com.itep.dao"></mongo:repositories> <mongo:db-factory dbname="${mongodb.db}" mongo-ref="mongo"/> <!-- 配置用户名密码 --> <bean id="userCredentials" class="org.springframework.data.authentication.UserCredentials"> <constructor-arg name="username" value="${mongodb.username}" /> <constructor-arg name="password" value="${mongodb.password}" /> </bean> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <constructor-arg ref="mongo" /> <constructor-arg ref="userCredentials" /> <constructor-arg name="databaseName" value="${mongodb.db}" /> </bean> </beans>
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> T findById(Class<T> entityClass , String id) { return this.mongoTemplate.findById ( id,entityClass ); } @Override public <T> List<T> findAll(Class<T> 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 <T> Long count(Class<T> entityClass , Query query) { return this.mongoTemplate.count ( query,entityClass ); } @Override public <T> List<T> findByQuery(Class<T> 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> T findById(Class<T> entityClass,String id); <T> List<T> findAll(Class<T> entityClass); void remove(Object obj); void add(Object obj); void saveOrUpdate(Object obj); <T> Long count(Class<T> entityClass, Query query); <T> List<T> findByQuery(Class<T> 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") ) ); List<User> byQuery = 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"); } }