本文節選自 《Netkiller Spring Cloud 手札》
Netkiller Spring Cloud 手札
Spring Cloud Cookbook
Mr. Neo Chan, 陳景峯(BG7NYT)
中國廣東省深圳市望海路半島城邦三期
518067
+86 13113668890
<[email protected]>
$Id: book.xml 606 2013-05-29 09:52:58Z netkiller $
版權 © 2015-2018 Neo Chan
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轉載請與作者聯繫，轉載時請務必標明文章原始出處和作者信息及本聲明。
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2017-11
我的系列文檔
編程語言
5.2.4. mongoTemplate
導入與模板相關的包
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.data.mongodb.core.query.Update;
注入 MongoTemplate 對象
@Autowired private MongoTemplate mongoTemplate;
5.2.4.1. Save 保存
User user = new User();
user.setName("Netkiller");
mongoTemplate.save(user, "user");
更新數據
user = mongoTemplate.findOne(Query.query(Criteria.where("name").is("Jam")), User.class);
user.setName("Neo");
mongoTemplate.save(user, "user");
5.2.4.2. Insert
User user = new User();
user.setName("Neo");
mongoTemplate.insert(user, "user");
BSONObject personBsonObj = BasicDBObjectBuilder.start()
.add("name","Neo Chen")
.add("age",27)
.add("address",null).get();
mongoTemplate.insert(personBsonObj,"personCollection");
document in the db:
db.personCollection.findOne().pretty();
{"age":21,"name":"John Doe";"address":null}*
5.2.4.3. 更新第一條
Query query = new Query();
query.addCriteria(Criteria.where("name").is("Neo"));
Update update = new Update();
update.set("name", "Netkiller");
mongoTemplate.updateFirst(query, update, User.class);
5.2.4.4. 更新所有數據
Query query = new Query();
query.addCriteria(Criteria.where("name").is("Neo"));
Update update = new Update();
update.set("name", "Jerry");
mongoTemplate.updateMulti(query, update, User.class);
5.2.4.5. 查找並保存
Query query = new Query();
query.addCriteria(Criteria.where("name").is("Luck"));
Update update = new Update();
update.set("name", "Lisa");
User user = mongoTemplate.findAndModify(query, update, User.class);
5.2.4.6. upsert
Query query = new Query();
query.addCriteria(Criteria.where("name").is("Green"));
Update update = new Update();
update.set("name", "Tom");
mongoTemplate.upsert(query, update, User.class);
5.2.4.7. 刪除
User user = new User();
user.setId("5bbf091efd9557069c4a25c5")
mongoTemplate.remove(user, "user");
5.2.4.8. 查找一條數據
public Person findOneByName(String name) {
Query query = new Query();
query.addCriteria(Criteria.where("name").is(name));
return mongoTemplate.findOne(query, Person.class);
}
5.2.4.9. 查找所有數據
public List<Person> findByName(String name) {
Query query = new Query();
query.addCriteria(Criteria.where("name").is(name));
return mongoTemplate.find(query, Person.class);
}
5.2.4.10. Query
5.2.4.10.1. 翻頁
public List<Person> getAllPersonPaginated(int pageNumber, int pageSize) {
Query query = new Query();
query.skip(pageNumber * pageSize);
query.limit(pageSize);
return mongoTemplate.find(query, Person.class);
}
5.2.4.10.2. between
實現一個區間條件 new Criteria("createdDate").gte(beginDate).lte(endDate)
public boolean AccountDeposit(Date beginDate, Date endDate) {
MatchOperation matchOperation = match(new Criteria("createdDate").gte(beginDate).lte(endDate));
GroupOperation groupOperation = group("loginname").sum("amount").as("amount");
SortOperation sortOperation = sort(new Sort(Direction.ASC, "loginname"));
Aggregation aggregation = newAggregation(matchOperation, groupOperation, sortOperation);
AggregationResults<AccountSettlementDetails> results = mongoTemplate.aggregate(aggregation, AccountSettlementDetails.class, AccountSettlementDetails.class);
if (results.getMappedResults() != null) {
log.info(results.getRawResults().get("result").toString());
for (AccountSettlementDetails settlementDetails : results.getMappedResults()) {
log.info("{}", settlementDetails.toString());
}
}
return true;
}
5.2.4.11. Criteria
5.2.4.11.1. is
Query query = new Query();
query.addCriteria(Criteria.where("name").is("Neo"));
List<User> users = mongoTemplate.find(query, User.class);
5.2.4.11.2. Regex 正則表達式搜索
查詢以N開頭的名字
Query query = new Query();
query.addCriteria(Criteria.where("name").regex("^N"));
List<User> users = mongoTemplate.find(query,User.class);
查詢以o結尾的名字
Query query = new Query();
query.addCriteria(Criteria.where("name").regex("o$"));
List<User> users = mongoTemplate.find(query, User.class);
5.2.4.11.3. lt 和 gt
查詢年齡小於 < 30 並 > 20 的用戶
Query query = new Query();
query.addCriteria(Criteria.where("age").lt(30).gt(20));
List<User> users = mongoTemplate.find(query,User.class);
查找日期範圍
Date start = DateUtil.convertStringToDateTime("2014-02-10 20:38:44");
Date end = DateUtil.convertStringToDateTime("2014-02-10 20:38:50");
Query query = new Query();
Criteria criteria = Criteria.where("delflag").is(false);
criteria.and("modifyDate").gte(start).lte(end);
query.addCriteria(criteria);
query.limit(10);
5.2.4.11.4.
<programlisting>
<![CDATA[
Query query = new Query();
query.addCriteria(
new Criteria().andOperator(
Criteria.where("field1").exists(true),
Criteria.where("field1").ne(false)
)
);
List<Foo> result = mongoTemplate.find(query, Foo.class);
System.out.println("query - " + query.toString());
for (Foo foo : result) {
System.out.println("result - " + foo);
}
5.2.4.11.5. 包含
public List<Person> findByFavoriteBooks(String favoriteBook) {
Query query = new Query();
query.addCriteria(Criteria.where("favoriteBooks").in(favoriteBook));
return mongoTemplate.find(query, Person.class);
}
5.2.4.12. Update
5.2.4.12.1. set
Update update = new Update();
update.set("name", "Netkiller");
5.2.4.12.2. 追加數據
Query query = Query.query(Criteria.where("id").is("5bbf091efd9557069c4a25c5"));
Update update = new Update().push("author", new Author("neo", "chen"));
mongoTemplate.updateFirst(query, update, Article.class);
5.2.4.12.3. 更新數據
Query query = Query.query(Criteria.where("classId").is("1").and("Students.studentId").is("1"));
Update update = Update.update("Students.$.name", "lisa");
mongoTemplate.upsert(query, update, "class");
5.2.4.12.4. 刪除數據
Query query = Query.query(Criteria.where("classId").is("1").and("Students.studentId").is("3"));
Update update = new Update();
update.unset("Students.$");
mongoTemplate.updateFirst(query, update, "class");
5.2.4.12.5. inc
public void updateMultiplePersonAge() {
Query query = new Query();
Update update = new Update().inc("age", 1);
mongoTemplate.findAndModify(query, update, Person.class);;
}
5.2.4.12.6. update.addToSet
Query query = Query.query(Criteria.where("classId").is("1"));
Student student = new Student("1", "lisa", 3, "girl");
Update update = new Update();
update.addToSet("Students", student);
mongoTemplate.upsert(query, update, "class");
5.2.4.13. Sort
按照年齡排序
Query query = new Query(); query.with(new Sort(Sort.Direction.ASC, "age")); List<User> users = mongoTemplate.find(query,User.class);
5.2.4.14. Query + PageRequest
final Pageable pageableRequest = new PageRequest(0, 2); Query query = new Query(); query.with(pageableRequest);
5.2.4.15. newAggregation
MultilevelDirectSellingAccountRewardsSettlementDetails multilevelDirectSellingAccountRewardsSettlementDetails = new MultilevelDirectSellingAccountRewardsSettlementDetails();
multilevelDirectSellingAccountRewardsSettlementDetails.setLoginname("111");
multilevelDirectSellingAccountRewardsSettlementDetails.setPhone("111");
multilevelDirectSellingAccountRewardsSettlementDetails.setRecommenderLoginname("111");
multilevelDirectSellingAccountRewardsSettlementDetails.setRecommenderPhone("111");
multilevelDirectSellingAccountRewardsSettlementDetails.setRecommenderName("Neo");
multilevelDirectSellingAccountRewardsSettlementDetails.setRecommenderType("客戶");
multilevelDirectSellingAccountRewardsSettlementDetails.setAmount(5.02);
multilevelDirectSellingAccountRewardsSettlementDetails.setCreatedDate(new Date());
multilevelDirectSellingAccountRewardsSettlementDetailsRepository.save(multilevelDirectSellingAccountRewardsSettlementDetails);
Date beginDate = this.getToday("00:00:00");
Date endDate = this.getToday("23:59:59");
log.info(beginDate.toString() + " ~ " + endDate.toString());
GroupOperation groupOperation = group("loginname").sum("amount").as("amount");
MatchOperation matchOperation = match(new Criteria("createdDate").gte(beginDate).lte(endDate));
SortOperation sortOperation = sort(new Sort(Direction.ASC, "loginname"));
Aggregation aggregation = newAggregation(matchOperation, groupOperation, sortOperation);
AggregationResults<MultilevelDirectSellingAccountRewardsSettlementDetails> results = mongoTemplate.aggregate(aggregation, MultilevelDirectSellingAccountRewardsSettlementDetails.class, MultilevelDirectSellingAccountRewardsSettlementDetails.class);
System.out.println(results.getRawResults().get("result").toString());
5.2.4.16. 創建索引
mongoOps.indexOps(User.class).ensureIndex(new Index().on("name", Direction.ASC));
5.2.4.17. 子對象操作
5.2.4.17.1. List 類型
package cn.netkiller.api.domain;
import java.util.List;
import javax.persistence.Id;
import org.springframework.data.mongodb.core.mapping.Document;
@Document
public class Article {
@Id
private String id;
private String title;
private String description;
List<Author> author;
public static class Author {
private String id;
private String firstname;
private String lastname;
public Author(String firstname, String lastname) {
this.firstname = firstname;
this.lastname = lastname;
}
}
}
更新
db.getCollection('foo').update({"author.firstname":"neo"},{"$set":{"author.$.firstname":"netkiller"}})
更新數據
Query query = Query.query(Criteria.where("author.firstname").is("neo"));
Update update = new Update().set("author.$.firstname", "netkiller");
mongoTemplate.updateFirst(query, update, Article.class);
追加數據
Query query = Query.query(Criteria.where("id").is("5bbf091efd9557069c4a25c5"));
Update update = new Update().push("author", new Author("neo", "chen"));
mongoTemplate.updateFirst(query, update, Article.class);
刪除數據
Query query = Query.query(Criteria.where("id").is("5bbf091efd9557069c4a25c5"));
Update update = new Update().pull("author", new Author("jerry", "lee"));
mongoTemplate.updateFirst(query, update, Article.class);