MongoDB 入门教程

叁歲伎倆 2023-07-09 02:29 18阅读 0赞

一.下载

1.MongoDB

2.MongoDB Compass（MongoDB的客户端）

二.安装

1.MongoDB

2.MongoDB Compass

三.Compass连接MongoDB

1.创建MongoDB数据库连接

2.创建数据库

四.Spring整合MongoDB

1.添加依赖

2.修改application.yml配置

3.添加文档对象MProduct

4.添加MProductRepository接口用于操作Mongodb

5.添加MProductService接口和MProductServiceImpl实现类

6.添加MProductController控制器

7.Mongo注解

8.接口测试

--------------------

## 一.下载 ##

### 1.MongoDB ###

[https://www.mongodb.com/download-center/community][https_www.mongodb.com_download-center_community]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70][]

### 2.MongoDB Compass（MongoDB的客户端） ###

[https://www.mongodb.com/download-center/compass][https_www.mongodb.com_download-center_compass]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 1][]

![20200227175015494.png][]

## 二.安装 ##

### 1.MongoDB ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 4][]

**"install mongoDB compass"** 不勾选，后面自己安装

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 5][]

**安装完后启动查看版本**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 6][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 7][]

**创建配置文件**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 8][]

systemLog:
     destination: file
     path: D:\soft\MongoDB\log\mongod.log
    storage:
     dbPath: D:\soft\MongoDB\data\db

确保上面配置的文件夹对应的路径是有的，没有则创建（创建data\\db和log两个文件夹）

**安装服务**

用管理员权限  打开命令行执行

D:\soft\MongoDB\bin\mongod.exe --config "D:\soft\MongoDB\mongod.cfg" --install

![2020022718500389.png][]

另外在无需管理员权限的命令窗口启动/关闭服务

![20200227185336917.png][]

相关命令

删除服务：sc delete MongoDB
    启动服务：net start MongoDB
    关闭服务：net stop MongoDB
    移除服务：D:\soft\MongoDB\bin\mongod.exe --remove

### 2.MongoDB Compass ###

![20200228095613549.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 9][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 10][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 11][]

安装完后启动

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 12][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 13][]

## 三.Compass连接MongoDB ##

### 1.创建MongoDB数据库连接 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 14][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 15][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 16][]

### 2.创建数据库 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 17][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 18][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 19][]

## 四.Spring整合MongoDB ##

### 1.添加依赖 ###

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

### 2.修改application.yml配置 ###

spring:data节点下添加Mongodb相关配置

#MongoDB配置
        mongodb:
          host: localhost
          port: 27017
          database: ak-mall

### 3.添加文档对象MProduct ###

文档对象的ID域添加@Id注解，需要检索的字段添加@Indexed注解。

@Data
    @Document
    public class MProduct implements Serializable {
    
        private static final long serialVersionUID = -1296261179864925924L;
    
        @Id
        private String id;
        @Indexed
        private String brandId;
        private String name;
        private Date createTime;
    }

### 4.添加MProductRepository接口用于操作Mongodb ###

/**
     * 继承MongoRepository接口，这样就拥有了一些基本的Mongodb数据操作方法，同时定义了一个衍生查询方法
     */
    public interface MProductRepository extends MongoRepository<MProduct, Long> {
        /**
         * 根据品牌Id查询产品并倒序
         *
         * @param brandId 品牌Id
         */
        List<MProduct> findByBrandIdOrderByCreateTimeDesc(String brandId);
    }

### 5.添加MProductService接口和MProductServiceImpl实现类 ###

public interface MProductService {
        /**
         * 生成产品
         */
        int create(MProduct mProduct);
    
        /**
         * 批量删除
         */
        int delete(List<String> ids);
    
        /**
         * 根据brandId获取产品
         */
        List<MProduct> list(String brandId);
    }

@Service
    public class MProductServiceImpl implements MProductService {
    
        @Autowired
        private MProductRepository mProductRepository;
    
        @Override
        public int create(MProduct mProduct) {
            mProduct.setId(null);
            mProduct.setCreateTime(new Date());
            mProductRepository.save(mProduct);
            return 1;
        }
    
        @Override
        public int delete(List<String> ids) {
            List<MProduct> deleteList = new ArrayList<>();
            for (String id : ids) {
                MProduct mProduct = new MProduct();
                mProduct.setId(id);
                deleteList.add(mProduct);
            }
            mProductRepository.deleteAll(deleteList);
            return ids.size();
        }
    
        @Override
        public List<MProduct> list(String brandId) {
            return mProductRepository.findByBrandIdOrderByCreateTimeDesc(brandId);
        }
    }

### 6.添加MProductController控制器 ###

@Api(tags = "MProductController", description = "Mongo-产品控制器")
    @RestController
    @RequestMapping("/m/product")
    public class MProductController {
    
        @Autowired
        private MProductService mProductService;
    
        @ApiOperation("创建产品")
        @RequestMapping(value = "/create", method = RequestMethod.POST)
        public CommonResult create(@RequestBody MProduct mProduct) {
            int count = mProductService.create(mProduct);
            if (count > 0) {
                return CommonResult.success(count);
            } else {
                return CommonResult.failed();
            }
        }
    
        @ApiOperation("删除产品")
        @RequestMapping(value = "/delete", method = RequestMethod.POST)
        @ResponseBody
        public CommonResult delete(@RequestParam("ids") List<String> ids) {
            int count = mProductService.delete(ids);
            if (count > 0) {
                return CommonResult.success(count);
            } else {
                return CommonResult.failed();
            }
        }
    
        @ApiOperation("根据brandId获取产品")
        @RequestMapping(value = "/list", method = RequestMethod.GET)
        @ResponseBody
        public CommonResult<List<MProduct>> list(String brandId) {
            List<MProduct> mProductList = mProductService.list(brandId);
            return CommonResult.success(mProductList);
        }
    
    }

### 7.Mongo注解 ###

@Document:标示映射到Mongodb文档上的领域对象
    @Id:标示某个域为ID域
    @Indexed:标示某个字段为Mongodb的索引字段

### 8.接口测试 ###

**创建产品**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 20][]

**查询产品**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 21][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 22][]

**删除产品**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjAzMjE5OQ_size_16_color_FFFFFF_t_70 23][]

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[https_www.mongodb.com_download-center_community]: https://www.mongodb.com/download-center/community
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[https_www.mongodb.com_download-center_compass]: https://www.mongodb.com/download-center/compass
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