一、mongodb介绍

MongoDB 是一个介于关系数据库和非关系数据库之间的产品，是非关系数据库当中功能最丰富，且与关系数据库的最为相像的。它支持的数据结构非常松散，是类似 json 的 bson 格式，因此可以存储比较复杂的数据类型。Mongo 最大的特点是它支持的查询语言非常强大，其语法有点类似于面向对象的查询语言，几乎可以实现类似关系数据库单表查询的绝大部分功能，而且还支持对数据建立索引。

二、mongodb环境搭建

采用docker-compose搭建，配置文件如下

version: '3'
# 网桥mongo -> 方便相互通讯networks:  mongo:
services:  # mongodb  mongodb:    image: registry.cn-hangzhou.aliyuncs.com/zhengqing/mongo:4.4.6  # 原镜像`mongo:4.4.6`    restart: unless-stopped    container_name: mongodb    environment:      MONGO_INITDB_ROOT_USERNAME: admin      MONGO_INITDB_ROOT_PASSWORD: 123456      MONGO_DATA_DIR: /data/db      MONGO_LOG_DIR: /data/logs#    volumes:#      - ./mongodb/db:/data/db#      - ./mongodb/log:/data/log    ports:      - "27017:27017"    networks:      - mongo
  # 可视化图形工具  adminmongo:    image: mrvautin/adminmongo    restart: unless-stopped    container_name: adminmongo    environment:      - HOST=0.0.0.0    depends_on:      - 'mongodb'    links:      - mongodb    ports:      - "1234:1234"    networks:      - mongo

启动代码

docker-compose -f docker-compose-mongodb.yml -p mongodb up -d

访问地址：[`http://ip地址:1234`](http://127.0.0.1:1234)

Connection string：`mongodb://admin:123456@ip地址:27017`

三、代码工程

pom.xml

<?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">    <parent>        <artifactId>springboot-demo</artifactId>        <groupId>com.et</groupId>        <version>1.0-SNAPSHOT</version>    </parent>    <modelVersion>4.0.0</modelVersion>
    <artifactId>mongodb</artifactId>
    <properties>        <maven.compiler.source>8</maven.compiler.source>        <maven.compiler.target>8</maven.compiler.target>    </properties>    <dependencies>
        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>
        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-autoconfigure</artifactId>        </dependency>        <!-- SpringBoot MongoDB -->        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-data-mongodb</artifactId>        </dependency>        <dependency>            <groupId>org.projectlombok</groupId>            <artifactId>lombok</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-test</artifactId>            <scope>test</scope>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-autoconfigure</artifactId>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-test</artifactId>            <scope>test</scope>        </dependency>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <scope>test</scope>        </dependency>

    </dependencies></project>

entity

package com.et.mongodb.entity;
import com.fasterxml.jackson.annotation.JsonFormat;import lombok.Data;import lombok.ToString;import lombok.experimental.Accessors;import org.springframework.data.mongodb.core.mapping.MongoId;import java.util.Date;
@Data@ToString@Accessors(chain = true)public class User {
    /**     * 使用 @MongoID 能更清晰的指定 _id 主键     */    @MongoId    private String id;    private String name;    private String sex;    private Integer salary;    private Integer age;    @JsonFormat( pattern ="yyyy-MM-dd", timezone ="GMT+8")    private Date birthday;    private String remake;  
  private Status status;

}

package com.et.mongodb.entity;
import lombok.Data;import lombok.ToString;import lombok.experimental.Accessors;
@Data@ToString@Accessors(chain = true)public class Status {
    private Integer weight;    private Integer height;
}

启动类

package com.et.mongodb;
import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplicationpublic class DemoApplication {
   public static void main(String[] args) {      SpringApplication.run(DemoApplication.class, args);   }}

属性文件application.yaml

server:  port: 8088

spring:  data:    mongodb:      uri: mongodb://admin:123456@127.0.0.1:27017/admin      # 需要用户名和密码认证      #uri:  mongodb://username:password@ip:port/admin
      #不需要用户名和密码认证      #uri:  mongodb://ip:port/admin

代码仓库

https://github.com/Harries/springboot-demo

四、测试

测试类

package com.et.mongodb;
import com.et.mongodb.entity.Status;import com.et.mongodb.entity.User;import com.mongodb.client.model.Indexes;import org.junit.Test;import org.junit.runner.RunWith;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.boot.test.context.SpringBootTest;import org.springframework.data.mongodb.core.MongoTemplate;import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;import java.util.Date;

@RunWith(SpringRunner.class)@SpringBootTest(classes = DemoApplication.class)public class MongodbTests {    private Logger log = LoggerFactory.getLogger(getClass());    private static final String COLLECTION_NAME = "users";    @Resource    private MongoTemplate mongoTemplate;

    @Test    public void createIndex() {        String field = "name";        // create index        mongoTemplate.getCollection(COLLECTION_NAME).createIndex(Indexes.ascending(field));    }    @Test    public void insert() {        // set user info        User user = new User()                .setId("10")                .setAge(22)                .setSex("man")                .setRemake("nothing")                .setSalary(1500)                .setName("zhangsan")                .setBirthday(new Date())                .setStatus(new Status().setHeight(180).setWeight(150));        // insert user info,throw exception when the row record is exist        User newUser = mongoTemplate.insert(user, COLLECTION_NAME);        // output result        log.info("user info：{}", newUser);    }

}

五、参考

https://docs.spring.io/spring-data/mongodb/docs/3.0.0.RELEASE/reference/html/#reference
https://www.mongodb.com/zh-cn

ITPub博客

springboot集成mongodb快速入门demo