未找到用戶定義類型spring-data-cassandra

基於教程spring-data-cassandra-tutorial我正在試驗UserDefinedType註釋。未找到用戶定義類型spring-data-cassandra

我將項目升級爲使用spring-data-cassandra：1.5.0.BUILD-SNAPSHOT，將屬性價格添加到本書中，實現相應的UserDefinedType並將setInitialEntitySet和setUserTypeResolver添加到配置中。

當我再反對卡桑德拉3.9執行BookRepositoryIntegrationTest，我得到以下錯誤：

org.springframework.data.mapping.model.MappingException：用戶類型[價格]沒有找到

任何想法我失蹤？

這裏我的變化...

Book.java：

package org.baeldung.spring.data.cassandra.model; 

import java.util.HashSet; 
import java.util.Set; 
import java.util.UUID; 

import org.springframework.cassandra.core.Ordering; 
import org.springframework.cassandra.core.PrimaryKeyType; 
import org.springframework.data.cassandra.mapping.Column; 
import org.springframework.data.cassandra.mapping.PrimaryKeyColumn; 
import org.springframework.data.cassandra.mapping.Table; 

@Table 
public class Book { 

    @PrimaryKeyColumn(name = "id", ordinal = 0, type = PrimaryKeyType.CLUSTERED, ordering = Ordering.DESCENDING) 
    private UUID id; 

    @PrimaryKeyColumn(name = "title", ordinal = 1, type = PrimaryKeyType.PARTITIONED) 
    private String title; 

    @PrimaryKeyColumn(name = "publisher", ordinal = 2, type = PrimaryKeyType.PARTITIONED) 
    private String publisher; 

    @Column 
    private Set<String> tags = new HashSet<>(); 

    private Price price; 

    public Book(final UUID id, final String title, final String publisher, final Set<String> tags) { 
     this.id = id; 
     this.title = title; 
     this.publisher = publisher; 
     this.tags.addAll(tags); 
    } 
}

的pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>com.baeldung</groupId> 
    <artifactId>spring-data-cassandra</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 
    <packaging>jar</packaging> 

    <name>spring-data-cassandra</name> 

    <properties> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 

     <org.springframework.version>4.3.4.RELEASE</org.springframework.version> 

     <org.springframework.data.version>1.5.0.BUILD-SNAPSHOT</org.springframework.data.version> 

     <junit.version>4.12</junit.version> 
     <org.slf4j.version>1.7.12</org.slf4j.version> 
     <logback.version>1.1.3</logback.version> 
     <cassandra-driver-core.version>3.1.2</cassandra-driver-core.version> 
     <cassandra-unit.version>3.0.0.1</cassandra-unit.version> 
     <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>   
    </properties> 

    <dependencies> 
     <dependency> 
      <groupId>org.springframework.data</groupId> 
      <artifactId>spring-data-cassandra</artifactId> 
      <version>${org.springframework.data.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-core</artifactId> 
      <version>${org.springframework.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-test</artifactId> 
      <version>${org.springframework.version}</version> 
      <scope>test</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.cassandraunit</groupId> 
      <artifactId>cassandra-unit-spring</artifactId> 
      <version>${cassandra-unit.version}</version> 
      <scope>test</scope> 
      <exclusions> 
       <exclusion> 
        <groupId>org.cassandraunit</groupId> 
        <artifactId>cassandra-unit</artifactId> 
       </exclusion> 
      </exclusions> 
     </dependency> 
     <dependency> 
      <groupId>org.cassandraunit</groupId> 
      <artifactId>cassandra-unit</artifactId> 
      <version>${cassandra-unit.version}</version> 
      <scope>test</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.datastax.cassandra</groupId> 
      <artifactId>cassandra-driver-core</artifactId> 
      <version>${cassandra-driver-core.version}</version> 
      <optional>true</optional> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-api</artifactId> 
      <version>${org.slf4j.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>ch.qos.logback</groupId> 
      <artifactId>logback-classic</artifactId> 
      <version>${logback.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>jcl-over-slf4j</artifactId> 
      <version>${org.slf4j.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>log4j-over-slf4j</artifactId> 
      <version>${org.slf4j.version}</version> 
     </dependency> 
    </dependencies> 
    <build> 
     <plugins> 
      <plugin> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>2.3.2</version> 
       <configuration> 
        <source>1.8</source> 
        <target>1.8</target> 
       </configuration> 
      </plugin> 
        <plugin> 
         <groupId>org.apache.maven.plugins</groupId> 
         <artifactId>maven-surefire-plugin</artifactId> 
         <version>${maven-surefire-plugin.version}</version> 
         <configuration> 
          <excludes> 
           <exclude>**/*IntegrationTest.java</exclude> 
           <exclude>**/*LiveTest.java</exclude> 
          </excludes> 
         </configuration> 
        </plugin> 
       </plugins> 
      </build> 

    <profiles> 
     <profile> 
      <id>integration</id> 
      <build> 
       <plugins> 
        <plugin> 
         <groupId>org.apache.maven.plugins</groupId> 
         <artifactId>maven-surefire-plugin</artifactId> 
         <executions> 
          <execution> 
           <phase>integration-test</phase> 
           <goals> 
            <goal>test</goal> 
           </goals> 
           <configuration> 
            <excludes> 
             <exclude>**/*LiveTest.java</exclude> 
            </excludes> 
            <includes> 
             <include>**/*IntegrationTest.java</include> 
            </includes> 
           </configuration> 
          </execution> 
         </executions> 
         <configuration> 
          <systemPropertyVariables> 
           <test.mime>json</test.mime> 
          </systemPropertyVariables> 
         </configuration> 
        </plugin> 
       </plugins> 
      </build> 
     </profile> 
    </profiles> 
</project>

CassandraConfig.java

package org.baeldung.spring.data.cassandra.config; 

import org.apache.commons.logging.Log; 
import org.apache.commons.logging.LogFactory; 
import org.baeldung.spring.data.cassandra.model.Book; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.context.annotation.Bean; 
import org.springframework.context.annotation.Configuration; 
import org.springframework.context.annotation.PropertySource; 
import org.springframework.core.env.Environment; 
import org.springframework.data.cassandra.config.CassandraClusterFactoryBean; 
import org.springframework.data.cassandra.config.CassandraEntityClassScanner; 
import org.springframework.data.cassandra.config.java.AbstractCassandraConfiguration; 
import org.springframework.data.cassandra.mapping.BasicCassandraMappingContext; 
import org.springframework.data.cassandra.mapping.CassandraMappingContext; 
import org.springframework.data.cassandra.mapping.SimpleUserTypeResolver; 
import org.springframework.data.cassandra.repository.config.EnableCassandraRepositories; 

@Configuration 
@PropertySource(value = { "classpath:cassandra.properties" }) 
@EnableCassandraRepositories(basePackages = "org.baeldung.spring.data.cassandra.repository") 
public class CassandraConfig extends AbstractCassandraConfiguration { 
    private static final Log LOGGER = LogFactory.getLog(CassandraConfig.class); 

    @Autowired 
    private Environment environment; 

    @Override 
    protected String getKeyspaceName() { 
     return environment.getProperty("cassandra.keyspace"); 
    } 

    @Override 
    @Bean 
    public CassandraClusterFactoryBean cluster() { 
     final CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean(); 
     cluster.setContactPoints(environment.getProperty("cassandra.contactpoints")); 
     cluster.setPort(Integer.parseInt(environment.getProperty("cassandra.port"))); 
     LOGGER.info("Cluster created with contact points [" + environment.getProperty("cassandra.contactpoints") + "] " + "& port [" + Integer.parseInt(environment.getProperty("cassandra.port")) + "]."); 
     return cluster; 
    } 

    @Override 
    @Bean 
    public CassandraMappingContext cassandraMapping() throws ClassNotFoundException { 
     BasicCassandraMappingContext ctx = new BasicCassandraMappingContext(); 
     ctx.setInitialEntitySet(CassandraEntityClassScanner.scan(Book.class)); 
     ctx.setUserTypeResolver(new SimpleUserTypeResolver(cluster().getObject(), getKeyspaceName())); 
     return ctx; 
    } 
}

Price.java：

package org.baeldung.spring.data.cassandra.model; 

import org.springframework.data.cassandra.mapping.Column; 
import org.springframework.data.cassandra.mapping.UserDefinedType; 

@UserDefinedType 
public class Price { 

    @Column 
    private Double amount; 

    @Column 
    private String currency; 

    public Price(Double amount, String currency) { 
     this.amount = amount; 
     this.currency = currency; 
    } 

    public Double getAmount() { 
     return amount; 
    } 

    public String getCurrency() { 
     return currency; 
    } 
}

來源

2016-11-29 user1388903

嘗試使用下面的CassandraConfig類。

@Configuration 
@PropertySource(value = { "classpath:cassandra.properties" }) 
@EnableCassandraRepositories(basePackages = "org.baeldung.spring.data.cassandra.repository") 
public class CassandraConfig extends AbstractCassandraConfiguration { 
private static final Log LOGGER = LogFactory.getLog(CassandraConfig.class); 

@Autowired 
private Environment environment; 

@Override 
protected String getKeyspaceName() { 
    return environment.getProperty("cassandra.keyspace"); 
} 

@Override 
@Bean 
public CassandraClusterFactoryBean cluster() { 
    final CassandraClusterFactoryBean cluster = new CassandraClusterFactoryBean(); 
    cluster.setContactPoints(environment.getProperty("cassandra.contactpoints")); 
    cluster.setPort(Integer.parseInt(environment.getProperty("cassandra.port"))); 
    LOGGER.info("Cluster created with contact points [" + environment.getProperty("cassandra.contactpoints") + "] " + "& port [" + Integer.parseInt(environment.getProperty("cassandra.port")) + "]."); 
    return cluster; 
} 


@Bean 
public CassandraMappingContext mappingContext() throws ClassNotFoundException { 
    BasicCassandraMappingContext mappingContext = new BasicCassandraMappingContext(); 
    mappingContext.setInitialEntitySet(CassandraEntityClassScanner.scan("org.baeldung.spring.data.cassandra.model")); 
    mappingContext.setUserTypeResolver(new SimpleUserTypeResolver(cluster().getObject(),getKeyspaceName())); 
    return mappingContext; 
} 

@Bean 
public CassandraConverter converter() throws ClassNotFoundException { 
    return new MappingCassandraConverter(mappingContext()); 
} 

@Bean 
public CassandraSessionFactoryBean session() throws ClassNotFoundException { 
    CassandraSessionFactoryBean session = new CassandraSessionFactoryBean(); 
    session.setCluster(cluster().getObject()); 
    session.setKeyspaceName(getKeyspaceName()); 
    session.setConverter(converter()); 
    session.setSchemaAction(SchemaAction.RECREATE); 
    return session; 
    } 
}

來源

2016-11-30 07:08:34 abaghel

嘿，作品像一個魅力！如果說，我認爲MappingCassandraConverter是個訣竅嗎？此外，我不得不添加默認的構造函數到我的豆，以便能夠加載它們。非常感謝:) – user1388903

很高興聽到這一點。請接受答案，以便對其他人有所幫助。 – abaghel

類似的問題在這裏（http://stackoverflow.com/questions/38862460/user-defined-type-with-spring-data-cassandra/42036202#42036202）。步驟來讓UDT與Spring數據Cassandra一起工作 – denzal

您的代碼看起來不錯，但錯過用戶類型創建。您還配置了查找用戶類型所需的SimpleUserTypeResolver。

用戶類型[價格]未找到表示在Cassandra中找不到用戶類型。

你有兩個選擇如何解決：

您創建用戶定義類型自己。
引導應用程序時使用SchemaAction.RECREATE。

Baeldung的tutorial使用測試，以便用戶手動型創作中創建表前表創建可能是更好的選擇。

CreateUserTypeSpecification userTypeSpecification = mappingContext. 
          getCreateUserTypeSpecificationFor(mappingContext.getExistingPersistentEntity(Price.class)) 
          .ifNotExists(ifNotExists); 

cqlTemplate.execute(CreateUserTypeCqlGenerator.toCql(userTypeSpecification));

來源

2016-11-30 10:23:48 mp911de

未找到用戶定義類型spring-data-cassandra

回答

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