MongoDB安装与Spring整合
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")publicclass MongoDBServiceImpl implements IMongoDBService{@Autowired
private MongoTemplate mongoTemplate;@Override
public <T> T findById(Class<T> entityClass , String id) {returnthis.mongoTemplate.findById ( id,entityClass );}
@Override
public <T> List<T> findAll(Class<T> entityClass) {returnthis.mongoTemplate.findAll ( entityClass );}
@Override
publicvoid remove(Object obj) {this.mongoTemplate.remove ( obj );}
@Override
publicvoid add(Object obj) {this.mongoTemplate.insert ( obj );}
@Override
publicvoid saveOrUpdate(Object obj) {this.mongoTemplate.save ( obj );}
@Override
public <T> Long count(Class<T> entityClass , Query query) {returnthis.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 );}
returnthis.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:
*
*/publicinterface 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");
}
}
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