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query document
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+282
-4
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‎mongodb-java/src/main/java/com/hungcdev/mongodb/connection/MongoDBConnection.java‎

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@@ -45,5 +45,4 @@ private static void connectionExample() {
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MongoDatabase mongoDatabase = mongoClient.getDatabase("HungcDev");
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mongoDatabase.createCollection("User");
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}
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}

‎mongodb-java/src/main/java/com/hungcdev/mongodb/data/Post.java‎

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@@ -4,16 +4,19 @@
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import java.util.List;
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@Data
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@Builder
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@Getter
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@Setter
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@NoArgsConstructor
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@AllArgsConstructor
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@ToString
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public class Post {
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private String id;
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private String title;
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private String user;
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private String content;
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private List<String> tags;
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private int view;
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private boolean enable;
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}

‎mongodb-java/src/main/java/com/hungcdev/mongodb/insertion/InsertDocument.java‎

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@@ -18,11 +18,16 @@ public InsertDocument(String ip, int port, String databaseName) {
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this.mongoDatabase = mongoClient.getDatabase(databaseName);
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}
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public <T> void insert(String collectionName, T document , Class<T> classType) {
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public <T> void insert(String collectionName, Class<T> classType, T document){
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MongoCollection<T> collection = mongoDatabase.getCollection(collectionName, classType);
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collection.insertOne(document);
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}
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public <T> void insertMany(String collectionName, Class<T> classType, T... documents) {
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MongoCollection<T> collection = mongoDatabase.getCollection(collectionName, classType);
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collection.insertMany(List.of(documents));
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}
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public static void main(String[] args) {
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insertDocumentExample();
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}
@@ -37,7 +42,7 @@ private static void insertDocumentExample() {
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.tags(List.of("Mongodb", "Mongodb Java"))
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.enable(true)
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.build();
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insertDocument.insert("Post", post, Post.class);
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insertDocument.insert("Post", Post.class, post);
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System.out.println("Insert Post Successful!");
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}
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‎mongodb-java/src/main/java/com/hungcdev/mongodb/query/QueryDocument.java‎

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@@ -0,0 +1,65 @@
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package com.hungcdev.mongodb.query;
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import com.hungcdev.mongodb.connection.MongoDBConnection;
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import com.hungcdev.mongodb.data.Post;
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import com.hungcdev.mongodb.insertion.InsertDocument;
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import com.mongodb.client.*;
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import com.mongodb.client.model.Filters;
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import org.bson.conversions.Bson;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.UUID;
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public class QueryDocument {
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private MongoDatabase mongoDatabase;
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public QueryDocument(String ip, int port, String databaseName) {
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MongoClient mongoClient = MongoDBConnection.connectMongoDBWithPOJOs(ip, port);
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this.mongoDatabase = mongoClient.getDatabase(databaseName);
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}
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/**
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* The method to find all document in Collection
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* @param collectionName
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* @param classType
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* @param <T>
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* @return
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*/
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public <T> List<T> findAll(String collectionName, Class<T> classType) {
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MongoCollection<T> collection = mongoDatabase.getCollection(collectionName, classType);
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FindIterable<T> findResult = collection.find();
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return convert(findResult);
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}
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/**
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* The method to find document in Collection with condition
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* @param collectionName
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* @param classType
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* @param query
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* @param <T>
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* @return
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*/
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public <T> List<T> find(String collectionName, Class<T> classType, Bson query) {
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MongoCollection<T> collection = mongoDatabase.getCollection(collectionName, classType);
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FindIterable<T> findResult = collection.find(query);
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return convert(findResult);
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}
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/**
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* The method to convert from FindIterable to List
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* @param findIterable
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* @param <T>
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* @return
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*/
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private <T> List<T> convert(FindIterable<T> findIterable) {
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List<T> documents = new ArrayList<>();
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MongoCursor<T> cursor = findIterable.cursor();
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while (cursor.hasNext())
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documents.add(cursor.next());
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return documents;
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}
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}

‎mongodb-java/src/main/java/com/hungcdev/mongodb/query/QueryDocumentExample.java‎

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package com.hungcdev.mongodb.query;
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import com.hungcdev.mongodb.data.Post;
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import com.hungcdev.mongodb.insertion.InsertDocument;
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import com.mongodb.client.model.Filters;
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import org.bson.conversions.Bson;
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import java.util.List;
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import java.util.UUID;
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public class QueryDocumentExample {
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public static void main(String[] args) {
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// Thong tin cau hinh de ket noi MongoDB
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String IP = "localhost";
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int port = 27017;
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String databaseName = "HungcDev";
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String collection = "Post";
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/* Khoi tao du lieu */
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initDataExample(IP, port, databaseName, collection);
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/* Tim kiem tat ca document Post trong Collection */
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findAllExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Equals */
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findEqualsExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Not Equals */
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findNotEqualsExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh In */
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findInExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Not In */
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findNotInExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Greater Than */
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findGreaterThanExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Greater Than Or Equals */
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findGreaterThanOrEqualsExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Less than */
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findLessThanExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection voi dieu kien so sanh Less than or Equals */
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findLessThanOrEqualsExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection thoa man tat ca cac dieu kien */
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findANDLogicExample(IP, port, databaseName, collection);
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/* Tim kiem document Post trong Collection bat ky mot trong cac dieu kien */
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findORLogicExample(IP, port, databaseName, collection);
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}
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private static void findORLogicExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi view >= 100 && view < 300 */
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Bson query = Filters.or(Filters.eq("user", "Hungcdev"), Filters.in("title", List.of("Spring", "Java")));
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findANDLogicExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi view >= 100 && view < 300 */
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Bson query = Filters.and(Filters.gte("view", 100), Filters.lt("view", 300));
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findLessThanOrEqualsExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi view <= 300 */
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Bson query = Filters.lte("view", 300);
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findLessThanExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi view < 300 */
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Bson query = Filters.lt("view", 300);
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findGreaterThanOrEqualsExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi view >= 300 */
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Bson query = Filters.gte("view", 300);
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findGreaterThanExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi view > 300 */
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Bson query = Filters.gt("view", 300);
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findNotInExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi title khong nam trong danh sach {Mongodb, Spring, Java}*/
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Bson query = Filters.nin("title",List.of("Mongodb", "Spring", "Java"));
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findInExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi title nam trong danh sach {Mongodb, Spring, Java}*/
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Bson query = Filters.in("title",List.of("Mongodb", "Spring", "Java"));
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findNotEqualsExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi user khac gia tri Hungcdev */
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Bson query = Filters.ne("user","Hungcdev");
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/* tim kiem document voi enable khac gia tri true */
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// Bson query = Filters.ne("enable",true);
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void findEqualsExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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/* tim kiem document voi id = 8cf90a70-d7cd-4b7b-995b-167daab3c059 */
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// Bson query = Filters.eq("_id","8cf90a70-d7cd-4b7b-995b-167daab3c059");
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/* tim kiem document voi user la Hungcdev */
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// Bson query = Filters.eq("user","Hungcdev");
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/* tim kiem document voi enable la true */
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Bson query = Filters.eq("enable",true);
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List<Post> postList = queryDocument.find(collection, Post.class, query);
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System.out.println("--- Document trong Collection Post voi "+ query.toString() + "---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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private static void initDataExample(String ip, int port , String databaseName, String collection) {
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InsertDocument insertDocument = new InsertDocument(ip, port, databaseName);
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insertDocument.insertMany(collection, Post.class,
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Post.builder().id(UUID.randomUUID().toString()).title("Mongodb").user("Hungcdev").content("MongoDB Tutorial").view(100).enable(true).build(),
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Post.builder().id(UUID.randomUUID().toString()).title("Spring").user("Hungcdev").content("Spring Tutorial").view(200).enable(false).build(),
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Post.builder().id(UUID.randomUUID().toString()).title("Java").user("AtomPtit").content("Java Tutorial").view(300).enable(true).build(),
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Post.builder().id(UUID.randomUUID().toString()).title("Spring Boot").user("AtomPtit").content("Spring Boot Tutorial").view(400).enable(true).build(),
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Post.builder().id(UUID.randomUUID().toString()).title("PHP").user("HungHoi").content("PHP Tutorial").view(500).enable(true).build()
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);
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}
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private static void findAllExample(String ip, int port, String databaseName, String collection) {
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QueryDocument queryDocument = new QueryDocument(ip, port,databaseName);
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List<Post> postList = queryDocument.findAll(collection, Post.class);
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System.out.println("--- Document trong Collection Post ---");
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postList.forEach(post -> System.out.println(post.toString()));
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System.out.println("--- End ---");
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}
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}

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