1.創(chuàng)建數(shù)據(jù)庫(kù)的連接，進(jìn)行增刪改查
（分別為接口和實(shí)現(xiàn)類）
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package com.dao;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.data.mongodb.core.MongoTemplate;import org.springframework.data.mongodb.core.query.Criteria;import org.springframework.data.mongodb.core.query.Query;import org.springframework.stereotype.Repository;import com.bean.Company;@Repositorypublic class RepositoryImpl implements AbstractRepository { @Autowired private MongoTemplate mongoTemplate; // 查詢所有數(shù)據(jù) public List<?> findAll(Class<?> entity) { return mongoTemplate.findAll(entity); } // 更新數(shù)據(jù) public Company findOne(String id, Class<?> entity) { return (Company) mongoTemplate.findOne(new Query(Criteria.where("id") .is(id)), entity); } // 添加到數(shù)據(jù)庫(kù) public void updateEntity(Company company) { mongoTemplate.save(company); } // 刪除選中的數(shù)據(jù) public void delete(String id, Class<Company> class1) { Criteria criteria = Criteria.where("id").in(id); if (criteria != null) { Query query = new Query(criteria); if (query != null && mongoTemplate.findOne(query, class1) != null) mongoTemplate.remove(mongoTemplate.findOne(query, class1)); } } //增加到數(shù)據(jù)庫(kù) public void insert(Company company) { mongoTemplate.insert(company); }} |
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package com.dao;import java.util.List;import com.bean.Company;public interface AbstractRepository { public List<?> findAll(Class<?> entity); public Company findOne(String id,Class<?> entity); public void updateEntity(Company company); public void delete(String id, Class<Company> class1); public void insert(Company company);} |
總結(jié)：與關(guān)系型數(shù)據(jù)庫(kù)的連接一樣，沒(méi)有什么區(qū)別。
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原文鏈接：https://my.oschina.net/zhangzexing/blog/907223
