SpringBoot结合MongoDB简单应用

1.docker安装MongoDB

本案例在windows环境下安装。
命令：

docker pull mongodb

2.运行docker容器

docker run -d -p 27017:27017 mongo

打开virtualBox进行端口映射。如图所示：

3. 下载安装mongoDB数据库管理软件

Robomongo

4.搭建springBoot项目

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">    <modelVersion>4.0.0</modelVersion>    <groupId>com.wangh</groupId>    <artifactId>springboot_mongodb</artifactId>    <version>0.0.1-SNAPSHOT</version>    <packaging>jar</packaging>    <name>springboot_mongodb</name>    <description>Demo project for Spring Boot</description>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>1.5.4.RELEASE</version>        <relativePath/> <!-- lookup parent from repository -->    </parent>    <properties>        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>        <java.version>1.8</java.version>    </properties>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-data-mongodb</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-test</artifactId>            <scope>test</scope>        </dependency>    </dependencies>    <build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>            </plugin>        </plugins>    </build></project>

5.新建实体类（领域模型）

package com.wangh.springboot_mongodb.model;import java.util.Collection;import java.util.LinkedList;import org.springframework.data.annotation.Id;import org.springframework.data.mongodb.core.mapping.Document;import org.springframework.data.mongodb.core.mapping.Field;@Document //映射领域模型和mongodb文档public class Person {    @Id //此属性为文档Id    private String id;    private String name;    private Integer age;    @Field("locs") //此属性在文档中的名称为locs,locations属性将以数组形式存在当前数据记录中    private Collection<Location> locations = new LinkedList<Location>();    public Person(String name, Integer age) {        super();        this.name = name;        this.age = age;    }    public String getId() {        return id;    }    public void setId(String id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Integer getAge() {        return age;    }    public void setAge(Integer age) {        this.age = age;    }    public Collection<Location> getLocations() {        return locations;    }    public void setLocations(Collection<Location> locations) {        this.locations = locations;    }}package com.wangh.springboot_mongodb.model;/** * 工作过的地方 * @author Wanghao * */public class Location {    private String place;    private String year;    public Location(String place, String year) {        super();        this.place = place;        this.year = year;    }    public String getPlace() {        return place;    }    public void setPlace(String place) {        this.place = place;    }    public String getYear() {        return year;    }    public void setYear(String year) {        this.year = year;    }}

6. 数据访问接口

package com.wangh.springboot_mongodb.repository;import java.util.List;import org.springframework.data.mongodb.repository.MongoRepository;import org.springframework.data.mongodb.repository.Query;import com.wangh.springboot_mongodb.model.Person;public interface PersonRepository extends MongoRepository<Person, String> {    //1.支持方法名查询    Person findByName(String name);    //2.支持@Query查询，查询参数构造JSON字符串即可    @Query("{'age' : ?0}")    List<Person> withQueryFindByAge(Integer age);}

7.控制器

package com.wangh.springboot_mongodb.controller;import java.util.ArrayList;import java.util.Collection;import java.util.LinkedList;import java.util.List;import javax.annotation.Resource;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import com.wangh.springboot_mongodb.model.Location;import com.wangh.springboot_mongodb.model.Person;import com.wangh.springboot_mongodb.repository.PersonRepository;@RestControllerpublic class PersonController {    @Resource    private PersonRepository personRepository;    @RequestMapping("/save")    public List<Person> save(){        Person p1 = new Person("wanghao", 27);        Collection<Location> locations1 = new LinkedList<Location>();        Location l1 = new Location("北京", "2017");        Location l2 = new Location("上海", "2015");        Location l3 = new Location("广州", "2010");        Location l4 = new Location("西安", "2008");        locations1.add(l1);        locations1.add(l2);        locations1.add(l3);        locations1.add(l4);        p1.setLocations(locations1);        Person p2 = new Person("wangzhen", 27);        Collection<Location> locations2 = new LinkedList<Location>();        locations2.add(l1);        locations2.add(l2);        locations2.add(l3);        locations2.add(l4);        p2.setLocations(locations2);        List<Person> ps = new ArrayList<Person>();        ps.add(p1);        ps.add(p2);        return personRepository.save(ps);    }    @RequestMapping("/all")    public List<Person> list(){        return personRepository.findAll();    }    @RequestMapping("/q1")    public Person q1(String name){        return personRepository.findByName(name);    }    @RequestMapping("/q2")    public List<Person> q2(Integer age){        return personRepository.withQueryFindByAge(age);    }}

8.测试

访问 http://localhost:8080/all

访问 http://localhost:8080/q1?name=wangtuo

访问 http://localhost:8080/q2?age=21