SpringBoot集成MongoDB数据库

1. 引入依赖

在pom.xml中引入所需的依赖.

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

2. 添加MongoDB配置

在application.properties文件中添加如下信息:

###mongdb相关配置
##host地址
spring.data.mongodb.host=localhost
##默认数据库端口27017
spring.data.mongodb.password=27017
##连接数据库名test
spring.data.mongodb.database=test

3. 连接MongoDB

首先创建用户附件类UserAttachmentRel

package com.example.test.entity;

import org.springframework.data.annotation.Id;

/**
 * 描述:用户头像关联表
 * @Author zhangrui
 * @Date 2019/10/31 14:17
 */
public class UserAttachmentRel {
    @Id
    private String id;
    private String userId;
    private String fileName;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getFileName() {
        return fileName;
    }

    public void setFileName(String fileName) {
        this.fileName = fileName;
    }
}

然后开发UserAttachmentRelRepository类,该类继承自MongoRepository类.

public interface UserAttachmentRelRepository extends MongoRepository<UserAttachmentRel,String> {

}

然后开发服务层接口UserAttachmentRelService

/**
 * 描述:用户附件服务层
 * @Author zhangrui
 * @Date 2019/10/31 14:21
 */
public interface UserAttachmentRelService {
    UserAttachmentRel save(UserAttachmentRel userAttachmentRel);
}

接下来实现对应的实现类UserAttachmentRelServiceImpl

/**
 * 描述:用户附件实现层
 * @Author zhangrui
 * @Date 2019/10/31 14:22
 */
@Service
public class UserAttachmentRelServiceImpl implements UserAttachmentRelService {
    @Resource
    private UserAttachmentRelRepository userAttachmentRelRepository;
    @Override
    public UserAttachmentRel save(UserAttachmentRel userAttachmentRel) {
        return userAttachmentRelRepository.save(userAttachmentRel);
    }
}

4. 测试

在测试类TestApplicationTests中进行测试,将数据存储到MongoDB中

@Resource
    private UserAttachmentRelService userAttachmentRelService;
    @Test
    public void testMongoDB(){
        UserAttachmentRel userAttachmentRel = new UserAttachmentRel();
        userAttachmentRel.setId("1");
        userAttachmentRel.setUserId("1");
        userAttachmentRel.setFileName("个人简历.doc");
        userAttachmentRelService.save(userAttachmentRel);
        System.out.println("保存成功");
    }

打开MongoDB数据库,查看数据

image.png

至此,SpringBoot集成MongoDB成功.