MongoDB---com.mongodb.client
1、概述
1.1、MongoDB 对数据的操作 分为 Read Operations(查询操作)、Write Operations(增、删、改);
1.2、MongoDB 提供 客户端 用 bulk 方式 执行 Write Operations(批量写操作);
1.3、
1 | BulkWriteResult bulkWrite(List<? extends WriteModel<? extends TDocument>> requests); |
bulkWrite() 参数要求 传入一个List,集合中元素类型是WriteModel(批量写的基类),有以下几个子类:
DeleteManyModel、DeleteOneModel、InsertOneModel、ReplaceOneModel、UpdateManyModel、UpdateOneModel...
bulkWrite() 返回值 BulkWriteResult ,代表一个成功批量写操作结果(封装了 操作结果的状态信息);
2、实战
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | <dependencies> <! -- https://mvnrepository.com/artifact/org.springframework.integration/spring-integration-mongodb --> <dependency> <groupId>org.springframework.integration</groupId> <artifactId>spring-integration-mongodb</artifactId> <version>5.1.0.RELEASE</version> </dependency> <! -- https://mvnrepository.com/artifact/org.mongodb/mongo-java-driver --> <dependency> <groupId>org.mongodb</groupId> <artifactId>mongo-java-driver</artifactId> <version>3.11.2</version> </dependency> </dependencies> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | package com.springmongo; /** * @description: * @author: anpeiyong * @date: Created in 2020/1/14 15:41 * @since: */ public class Person { private String _id; private Integer age; private String name; public Person(String _id,Integer age,String name){ this ._id=_id; this .age=age; this .name=name; } public Integer getAge() { return age; } public void setAge(Integer age) { this .age = age; } public String getName() { return name; } public void setName(String name) { this .name = name; } public String get_id() { return _id; } public void set_id(String _id) { this ._id = _id; } @Override public String toString() { return this .age+ ":" + this .name; } } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 | package com.springmongo; import com.mongodb.MongoClient; import com.mongodb.client.MongoCollection; import com.mongodb.client.model.*; import org.bson.Document; import org.springframework.data.domain.Sort; import org.springframework.data.mongodb.MongoDbFactory; import org.springframework.data.mongodb.core.BulkOperations; import org.springframework.data.mongodb.core.MongoTemplate; import org.springframework.data.mongodb.core.SimpleMongoDbFactory; import org.springframework.data.mongodb.core.index.Index; import org.springframework.data.mongodb.core.index.IndexInfo; import org.springframework.data.mongodb.core.query.Criteria; import org.springframework.data.mongodb.core.query.Query; import org.springframework.data.mongodb.core.query.Update; import java.util.ArrayList; import java.util.List; /** * @description: * @author: anpeiyong * @date: Created in 2019/11/11 19:19 * @since: */ public class SpringMongoTest { static MongoTemplate mongoTemplate; static MongoDbFactory mongoDbFactory; static MongoCollection<Document> collection; static { mongoDbFactory = new SimpleMongoDbFactory( new MongoClient(), "test" ); mongoTemplate= new MongoTemplate(mongoDbFactory); collection=mongoTemplate.getCollection( "p10" ); } public static void main(String[] args) { //+++++++++++++++mongoTemplate使用+++++++++++++++++++++ testAddIndex(); testAdd(); testGet(); testUpdate(); testDelete(); //com.mongo.client使用(MongoCollection使用) testMongoClientAdd(); testMongoClientDelete(); testMongoClientUpdate(); } private static void testAddIndex() { //ensureIndex() 确保在该集合上存在该索引 Index index= new Index(); index.on( "name" , Sort.Direction.DESC); mongoTemplate.indexOps( "p10" ).ensureIndex(index); } public static void testAdd(){ Person p1= new Person( "1" , 12 , "jack" ); Person p2= new Person( "2" , 12 , "jack" ); Person p3= new Person( "3" , 12 , "jack" ); //批量操作API // BulkMode.UNORDERED:表示并行处理,遇到错误时能继续执行不影响其他操作; // BulkMode.ORDERED:表示顺序执行,遇到错误时会停止所有执行 BulkOperations operations=mongoTemplate.bulkOps(BulkOperations.BulkMode.ORDERED, "pplist" ); //单条数据操作 //save 插入2条相同数据 不会出现 DuplicateKeyException mongoTemplate.save(p1, "p7" ); mongoTemplate.save(p1, "p7" ); //insert 插入2条相同数据 会出现 DuplicateKeyException mongoTemplate.insert(p2, "p2" ); operations.insert(p1); operations.execute(); //批量数据操作 List<Person> personList= new ArrayList<>(); personList.add(p2); personList.add(p3); mongoTemplate.insert(personList, "plist" ); operations.insert(personList); operations.execute(); } public static void testGet(){ //获取所有索引 List<IndexInfo> indexList=mongoTemplate.indexOps( "p10" ).getIndexInfo(); System.out.println(indexList); //查找所有集合内容 List<Person> personList=mongoTemplate.findAll(Person. class , "p10" ); System.out.println(personList); //复合条件查询 Criteria criteria= new Criteria(); criteria.orOperator(Criteria.where( "age" ).is( 12 ),Criteria.where( "name" ).is( "rose" )); Query query1= new Query(criteria); List<Person> pp2List=mongoTemplate.find(query1,Person. class , "p10" ); System.out.println(pp2List); //分页查询 Query query2= new Query(); query2.skip( 0 ).limit( 1 ); List<Person> pp3List=mongoTemplate.find(query2,Person. class , "p10" ); System.out.println(pp3List); //模糊查询 Query query3= new Query(); query3.addCriteria(Criteria.where( "name" ).regex( "ja" )); List<Person> pp4List=mongoTemplate.find(query3,Person. class , "p10" ); System.out.println(pp4List); //条件查询 Query query= new Query(); query.addCriteria(Criteria.where( "name" ).is( "jj" )); List<Person> ppList=mongoTemplate.find(query,Person. class , "p10" ); System.out.println(ppList); } public static void testUpdate(){ BulkOperations operations=mongoTemplate.bulkOps(BulkOperations.BulkMode.ORDERED, "p1" ); //单个修改 Query query= new Query(Criteria.where( "_id" ).is( "5e1d7442ebbc1a60259a61dd" )); Update update= new Update(); update.set( "age" , 13 ); update.set( "name" , "lan" ); //传统实现 mongoTemplate.updateFirst(query,update, "p1" ); //BulkOperations实现 operations.updateOne(query,update); operations.execute(); //批量修改 Query query1= new Query(Criteria.where( "name" ).regex( "ja" )); Update update1= new Update(); update1.set( "age" , 16 ); update.set( "name" , "rose" ); mongoTemplate.updateMulti(query1,update1, "p1" ); } public static void testDelete(){ Query query= new Query(Criteria.where( "_id" ).is( "5e1d76e0eacc6d52f2b581cd" )); mongoTemplate.remove(query,Person. class , "p1" ); } public static void testMongoClientAdd(){ //批量新增 Person person= new Person( "5" , 22 , "jj" ); List<WriteModel<Document>> writeModelList= new ArrayList<>(); Document insertDocument= new Document(); insertDocument.put( "_id" ,person.get_id()); insertDocument.put( "age" ,person.getAge()); insertDocument.put( "name" ,person.getName()); InsertOneModel<Document> insertOneModel= new InsertOneModel<>(insertDocument); writeModelList.add(insertOneModel); testAddIndex(); collection.bulkWrite(writeModelList); Person person2= new Person( "7" , 20 , "jjkk" ); List<Document> documentList= new ArrayList<>(); Document insertDocument2= new Document(); insertDocument2.put( "_id" ,person2.get_id()); insertDocument2.put( "age" ,person2.getAge()); insertDocument2.put( "name" ,person2.getName()); documentList.add(insertDocument2); testAddIndex(); collection.insertMany(documentList); //单条新增 Person person1= new Person( "6" , 21 , "jjj" ); Document insertDocument1= new Document(); insertDocument1.put( "_id" ,person1.get_id()); insertDocument1.put( "age" ,person1.getAge()); insertDocument1.put( "name" ,person1.getName()); testAddIndex(); collection.insertOne(insertDocument1); } public static void testMongoClientDelete(){ //批量删除 Document deleteDocument= new Document( "_id" , "6" ); List<WriteModel<Document>> writeModelList= new ArrayList<>(); //DeleteOneModel 至多删除一条匹配条件的记录 DeleteOneModel<Document> deleteOneModel= new DeleteOneModel<Document>(deleteDocument); writeModelList.add(deleteOneModel); //DeleteManyModel 删除匹配条件的多条数据 DeleteManyModel<Document> deleteManyModel= new DeleteManyModel<Document>(deleteDocument); writeModelList.add(deleteManyModel); collection.bulkWrite(writeModelList); Document deleteDocument2= new Document( "name" , "jj" ); collection.deleteMany(deleteDocument2); //单条删除 Document deleteDocument1= new Document( "_id" , "7" ); collection.deleteOne(deleteDocument1); } public static void testMongoClientUpdate(){ //单个修改 Document document= new Document( "_id" , "5" ); //---要修改的内容 Document updateContent= new Document( "$set" , new Document( "name" , "sss" )); //---第一个参数:修改的id、第二个参数:修改后内容 collection.updateOne(document,updateContent); //批量修改 List<WriteModel<Document>> writeModelList= new ArrayList<>(); Document document1= new Document( "_id" , "6" ); //---要修改的内容 Document updateContent1= new Document( "$set" , new Document( "name" , "ccc" )); //---第一个参数:要修改的id、 //---第二个参数:修改后的内容 UpdateOneModel<Document> updateOneModel= new UpdateOneModel<Document>(document1,updateContent1); //---第一个参数:要修改的id、 //---第二个参数:修改后的内容、 //---第三个参数:可选、不填也会默认生成一个,upset值为false(如果未查到需要更新的内容,什么也不做); //upset为true(将新的Document插入数据库[查询Document 与 更新Document的结合]) UpdateOneModel<Document> updateOneModel1= new UpdateOneModel<Document>(document1,updateContent1, new UpdateOptions().upsert( false )); writeModelList.add(updateOneModel); collection.bulkWrite(writeModelList); } } |
posted on 2020-01-15 12:28 anpeiyong 阅读(4158) 评论(0) 编辑 收藏 举报
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