spring-data-mongodb

问题 Getting error "No property null found on entity class java.util.Currency" Hi I have Document Class as @Document @JsonInclude(Include.NON_NULL) public class Course { @Id private String id; private String title; private Currency curr; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public Currency getCurr() { return curr; } public void setCurr(Currency curr)

问题 I'm following Spring doc for creating batch service. It implements ItemWriter using JdbcBatchItemWriter , so could you please help me write the MongoDb equivalent of following code using MongoItemWriter ? I found two tutorials using MongoDb, but they use XML files to define beans & seem outdated. @Configuration @EnableBatchProcessing public class BatchConfiguration { // tag::readerwriterprocessor[] @Bean public ItemWriter<Person> writer(DataSource dataSource) { JdbcBatchItemWriter<Person>

问题 I have the following aggregation query that works when I use the command line in Mongo. {'$group': { '_id': {'serviceName': '$serviceName'}, 'timeAverage': {'$avg': {'$subtract': ['$lastCheckTime', '$enqueuedTime']} } } } But as far as I can tell, in Spring MongoDB there is no support for doing "subtract" inside of an avg operation in a group operation. How would I go about making this work? 回答1: You could try projecting the difference field first by using the SpEL andExpression in the

问题 I have read http://static.springsource.org/spring-data/data-mongo/docs/1.1.0.RELEASE/reference/html/#mapping-chapter but cannot find the answer to the following basic spring-data-mongodb object mapping question: If I load an instance of the following class from MongoDB: public class Test { private String str1; private String str2; private Date date3; public Test(String str1) { this.str1 = str1; this.date3=new Date(); } } I understand that the constructor Test(String str1) will be invoked with

问题 I have the following working configurations in my Spring application: <mongo:mongo id="myRs" replica-set="myhost:27017"> <mongo:options max-wait-time="1500" connect-timeout="30000" /> </mongo:mongo> <bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"> <property name="writeResultChecking" value="EXCEPTION"/> <property name="writeConcern" value="FSYNC_SAFE"/> <constructor-arg ref="myRs"/> <constructor-arg name="databaseName" value="mydb"/> </bean> Now all I want

问题 I've got an issue on spring data mongodb, in a method, I request a simple "find" wich retrieve ~1000 Documents. my spring data code is here : Query myquery = query(where("ipp").is(ipp).and(CODE_MESURE).in(codes).and(DATE_MESURE).gte(iDateDebut).lt(iDateFin)); return template.find(myquery, MessageMongo.class); And with JProfiler, i've got ~1,4sec in the "find" method of MongoTemplate class. Note : The request to MongoDB is not the problem, execution take less than 20ms. But if try to request

问题 Like spring-data-jpa have @NotNull annotation what can be used for this in spring-data-mongodb.? 回答1: javax.validation.constraints.NotNull itself could be used with spring-data-mongodb. For this you need to have following in place. JSR-303 dependencies added in your pom.xml <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-validator</artifactId> <version>5.3.4.Final</version> </dependency> Declare appropriate validators and validator event listeners import org

问题 I am developing the Spring Boot + MongoDB + spring data mongo + Text search Example. By taking a reference from link: https://spring.io/blog/2014/07/17/text-search-your-documents-with-spring-data-mongodb, I developed my code, but when I am executing that, it's giving empty resultset. Please help in this scenario. I was expecting to get both results OrderId = 10248 and 10249 , but I got empty. My developed code: OrderDetails.java @Document(collection="order-details") public class OrderDetails

问题 I have a MovieRepository which extended ReactiveMongoRepository. I want to save a single POJO in a reactive way. But ReactiveMongoRepository doesn't provide save method for Mono or Publisher. I have to use block() method or use the saveAll method in the ReactiveMongoRepository. public Mono<ServerResponse> create(ServerRequest request) { Mono<Movie> movieMono = request.bodyToMono(Movie.class); return movieRepository.save(movieMono.block()) // .flatMap((movie) -> ServerResponse.ok().body

问题 This is related to MongoDB and SpEL Expressions in @Document annotations This is the way I am creating my mongo template @Bean public MongoDbFactory mongoDbFactory() throws UnknownHostException { String dbname = getCustid(); return new SimpleMongoDbFactory(new MongoClient("localhost"), "mydb"); } @Bean MongoTemplate mongoTemplate() throws UnknownHostException { MappingMongoConverter converter = new MappingMongoConverter(mongoDbFactory(), new MongoMappingContext()); return new MongoTemplate