MongoDB的安装和使用-编程知识

1.MongoDB 安装

1.1 基于Docker安装

docker run --restart=always -d --name mongo -v /opt/mongodb/data:/data/db -p 27017:27017 mongo:4.0.6

1.2 客户端工具使用

MongoDB Compass | MongoDB

2.MongoDB 使用

2.1 引用依赖包

  <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-mongodb</artifactId></dependency>

2.2 配置文件配置mongodb资料

# MongoDB连接信息
spring.data.mongodb.host = 192.168.23.27
spring.data.mongodb.port = 27017
spring.data.mongodb.database = mallspring.data.mongodb.auto-index-creation = true

2.3 准备对象Person

@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
@Document(collection = "205_person")
//用于指定集合,如果不指定则会默认集合为当前类名
public class Person {// @Id //用于指定Id,若有该字段，则mongodb默认为model中的id为MongoDB中的idprivate  Integer id ;private  String name;private  Integer age;private  String phone;@Indexed(expireAfterSeconds = 10) //必须结合spring.data.mongodb.auto-index-creation = true和@Document注解一起使用private LocalDateTime creatTime;
}

2.4新增文档

package com.by;import cn.hutool.core.date.LocalDateTimeUtil;
import com.by.model.Person;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.mongodb.core.MongoTemplate;import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;@SpringBootTest
class InsertTests {@Autowiredprivate MongoTemplate mongoTemplate;@Testvoid test() {Person person = Person.builder().id(1).name("张").age(18).phone("188744456223").build();mongoTemplate.insert(person);}@Test//指定集合名称进行插入205_personvoid test2() {Person person = Person.builder().id(2).name("张").age(18).phone("188744456223").build();mongoTemplate.insert(person,"205_person");}@Test//指定集合名称进行插入205_personvoid test3() {Person person = Person.builder().id(3).name("张").age(18).phone("188744456223").build();mongoTemplate.insert(person,"205_person");}@Testvoid test4() {Person person = Person.builder().id(2).name("张").age(18).phone("188744456223").build();mongoTemplate.save(person,"205_person");}@Test //批量插入void test5() {List<Person> list =new ArrayList<>();for (int i = 1; i <= 10; i++) {Person person = Person.builder().id(i).name("张"+i).age(i).phone("188744456223").build();list.add(person);}mongoTemplate.insertAll(list);}@Test //测试索引的过期时间void test6() {//   Person person = Person.builder().id(11).name("张").age(38).phone("188744456223").creatTime(LocalDateTime.now()).build();//   mongoTemplate.save(person);}@Test //测试索引的过期时间void test8() {//  Person person = Person.builder().id(112).name("张").age(38).phone("188744456223").creatTime(LocalDateTime.now()).build();//  mongoTemplate.insert(person);}@Test //使用save命令void test7() {Person person = Person.builder().id(1).name("张--大爷").age(38).phone("188744456223").build();mongoTemplate.save(person,"person");}}

2.5修改文档

package com.by;import cn.hutool.core.date.LocalDateTimeUtil;
import com.by.model.Person;
import com.mongodb.client.result.UpdateResult;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
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 java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;@SpringBootTest
class UpdateTests {@Autowiredprivate MongoTemplate mongoTemplate;@Test //更新满足条件的第一条数据void test() {Query query =new Query(Criteria.where("id").is(1));Update update=new Update().set("age",38);mongoTemplate.updateFirst(query,update,Person.class);}@Test //批量更新年龄大于10的void test2() {Query query =new Query(Criteria.where("age").gte(10));Update update=new Update().set("age",38);mongoTemplate.updateMulti(query,update,Person.class);}@Test //使用正则表达式修改姓张的年龄void test3() {Query query =new Query(Criteria.where("name").regex("^张"));Update update=new Update().set("age",48);UpdateResult updateResult = mongoTemplate.updateMulti(query, update, Person.class);}}

2.6删除文档

package com.by;import com.by.model.Person;
import com.mongodb.client.result.DeleteResult;
import com.mongodb.client.result.UpdateResult;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
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;@SpringBootTest
class DeleteTests {@Autowiredprivate MongoTemplate mongoTemplate;@Test //删除满足条件的第一条数据void test() {Query query =new Query(Criteria.where("id").is(2));DeleteResult remove = mongoTemplate.remove(query,Person.class);}@Test //删除满足条件的第一条数据void test2() {Query query =new Query(Criteria.where("name").regex("3$"));DeleteResult remove = mongoTemplate.remove(query,Person.class);}@Test //删除满足条件的第一条数据void test3() {Query query =new Query(Criteria.where("id").in(4,5,6));DeleteResult remove = mongoTemplate.remove(query,Person.class);}@Test //删除满足条件的数据void test4() {Query query =new Query(Criteria.where("id").in(7,8,9));DeleteResult remove = mongoTemplate.remove(query,Person.class,"205_person");}@Test //删除满足条件的数据void test5() {Query query =new Query(Criteria.where("name").regex("^张"));DeleteResult remove = mongoTemplate.remove(query,Person.class,"205_person");}}

2.7查询文档

package com.by;import com.by.model.Person;
import com.mongodb.client.result.UpdateResult;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.domain.Sort;
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 java.util.List;@SpringBootTest
class SelectTests {@Autowiredprivate MongoTemplate mongoTemplate;@Test //查询所有数据void test() {List<Person> all = mongoTemplate.findAll(Person.class);}@Test //查询指定数据void test2() {Query query =new Query(Criteria.where("name").is("张3"));List<Person> list = mongoTemplate.find(query, Person.class);}@Test //查询所有数据void test3() {Query query =new Query(Criteria.where("name").is("张3"));List<Person> list = mongoTemplate.find(query, Person.class,"205_person");}@Test //查询所有数据void test4() {Query query =new Query(Criteria.where("name").is("张3"));List<Person> allAndRemove = mongoTemplate.findAllAndRemove(query, Person.class);}@Test //查询所有数据void test5() {Query query =new Query(Criteria.where("age").gte(2).lte(5));List<Person> list = mongoTemplate.find(query, Person.class);}@Test //用and关联多个查询条件void test6() {Criteria name =new Criteria("name").regex("^张");Criteria age  = new Criteria("age").gte(5);//创建条件对象，用and 进行关联Criteria criteria =new Criteria().andOperator(name,age);Query query=new Query(criteria);List<Person> list = mongoTemplate.find(query, Person.class);}@Test //用or关联多个查询条件void test7() {Criteria name =new Criteria("name").regex("^张");Criteria age  = new Criteria("age").gte(5);//创建条件对象，用and 进行关联Criteria criteria =new Criteria().orOperator(name,age);Query query=new Query(criteria);List<Person> list = mongoTemplate.find(query, Person.class);}@Test //用in关联多个查询条件void test8() {Query query=new Query(Criteria.where("age").in(4,5,6));List<Person> list = mongoTemplate.find(query, Person.class);}@Test //使用正则表达式void test9() {Query query=new Query(Criteria.where("name").regex("7$"));List<Person> list = mongoTemplate.find(query, Person.class);}@Test //区间查询void test10() {Query query=new Query(Criteria.where("age").gte(5).lte(8));List<Person> list = mongoTemplate.find(query, Person.class);}@Test //降序排序void test11() {Query query=new Query(Criteria.where("age").gte(5).lte(8)).with(Sort.by(Sort.Order.desc("age")));List<Person> list = mongoTemplate.find(query, Person.class);}@Test //降序排序void test12() {Query query =new Query( Criteria.where("age").gte(5).lte(8)).with(Sort.by(Sort.Order.asc("age")));List<Person> list = mongoTemplate.find(query, Person.class);}}

2.8创建索引

package com.by;import com.by.model.Person;
import com.mongodb.client.ListIndexesIterable;
import com.mongodb.client.model.Indexes;
import com.mongodb.client.result.UpdateResult;
import org.bson.Document;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
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;@SpringBootTest
class IndexTests {@Autowiredprivate MongoTemplate mongoTemplate;@Test //更新满足条件的第一条数据void test() {//创建升序索引String index = mongoTemplate.getCollection("205_person").createIndex(Indexes.ascending("name"));//创建降序索引String name = mongoTemplate.getCollection("205_person").createIndex(Indexes.descending("name"));}@Test //删除索引void test2() {mongoTemplate.getCollection("205_person").dropIndex("name_-1");}@Test //查看所有索引void test3() {ListIndexesIterable<Document> documents = mongoTemplate.getCollection("205_person").listIndexes();for (Document document :documents) {System.out.println("索引列表"+document);}}}