SpringBoot整合MongoDB的实现代码

目录一、添加Maven依赖二、application.yml配置三、代码中使用Mongo1.Mongo适用场景2.以我最近博客开发的一个联系我为例(这里我使用Mongo)

MongoDB官网安装:https://www.mongodb.com/download-center/community

MongoDB客户端工具(Mongo Management Studio)安装:http://mms.litixsoft.de/#software_pricing

一、添加Maven依赖

<!--mongodb--><dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId></dependency>二、application.yml配置

spring: data: mongodb: host: 127.0.0.1 port: 27017 database: blog三、代码中使用Mongo1.Mongo适用场景

(1)可用于动态列;(2)可用于配置方面(如一些系统配置);(3)日志记录;(4)用于博客开发中的评论或留言;(5)物联网方面的门锁相关信息存储;(6)探头;

上面六个场景是我之前开发使用过的。

当然了，Mongo还可以应用更多地方，关键在于应用的场景是否合适。

2.以我最近博客开发的一个联系我为例(这里我使用Mongo)

(1)建立数据模型(需要在Mongo对应的库，建立对应的集合)

package com.springcloud.blog.admin.mongo.entity;import com.springcloud.blog.admin.common.base.BaseDTO;import org.springframework.data.mongodb.core.mapping.Document;import org.springframework.data.mongodb.core.mapping.Field;/** * 联系我-数据模型 */@Document(collection = 'contact_me')public class ContactMe extends BaseDTO { @Field private String name; @Field private String email; @Field private String content; public String getName() {return name; } public void setName(String name) {this.name = name; } public String getEmail() {return email; } public void setEmail(String email) {this.email = email; } public String getContent() {return content; } public void setContent(String content) {this.content = content; }}

(2)数据访问层

package com.springcloud.blog.admin.mongo.dao;import com.springcloud.blog.admin.mongo.entity.ContactMe;import org.springframework.data.mongodb.repository.MongoRepository;/** * 联系我-持久层 */public interface ContactMeRepository extends MongoRepository<ContactMe, String> {}

(3)对外API

package com.springcloud.blog.admin.mongo.controller;import com.alibaba.fastjson.JSONObject;import com.springcloud.blog.admin.common.dict.ResponseDict;import com.springcloud.blog.admin.mongo.dao.ContactMeRepository;import com.springcloud.blog.admin.mongo.entity.ContactMe;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import java.util.List;/** * 联系我(Mongo Example) */@RestController@RequestMapping('/contactMe')public class ContactMeController { @Autowired private ContactMeRepository contactMeRepository; @PostMapping('/save') public JSONObject save(@RequestBody ContactMe contactMe) {JSONObject jsonObject = new JSONObject();contactMeRepository.save(contactMe);jsonObject.put(ResponseDict.RESPONSE_CODE_KEY, ResponseDict.RESPONSE_SUCCESS_CODE);jsonObject.put(ResponseDict.RESPONSE_MSG_KEY, ResponseDict.RESPONSE_SUCCESS_MSG);return jsonObject; } @PostMapping('/delete') public JSONObject delete(@RequestBody ContactMe contactMe) {JSONObject jsonObject = new JSONObject();contactMeRepository.delete(contactMe);jsonObject.put(ResponseDict.RESPONSE_CODE_KEY, ResponseDict.RESPONSE_SUCCESS_CODE);jsonObject.put(ResponseDict.RESPONSE_MSG_KEY, ResponseDict.RESPONSE_SUCCESS_MSG);return jsonObject; } @PostMapping('/update') public JSONObject update(@RequestBody ContactMe contactMe) {JSONObject jsonObject = new JSONObject();contactMeRepository.save(contactMe);jsonObject.put(ResponseDict.RESPONSE_CODE_KEY, ResponseDict.RESPONSE_SUCCESS_CODE);jsonObject.put(ResponseDict.RESPONSE_MSG_KEY, ResponseDict.RESPONSE_SUCCESS_MSG);return jsonObject; } @PostMapping('/getAll') public JSONObject getAll() {JSONObject jsonObject = new JSONObject();List<ContactMe> list = contactMeRepository.findAll();jsonObject.put(ResponseDict.RESPONSE_CODE_KEY, ResponseDict.RESPONSE_SUCCESS_CODE);jsonObject.put(ResponseDict.RESPONSE_MSG_KEY, ResponseDict.RESPONSE_SUCCESS_MSG);jsonObject.put(ResponseDict.RESPONSE_DATA_KEY, list);return jsonObject; }}

简单的说就是一个非常简单的增删改查，可帮助入门。同时一般情况下，还是需要业务逻辑层的，一方面为了复用考虑，另外一方面不同的业务办不同的事情。

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