qq_52131913 2023-07-04 16:22 采纳率: 100%
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spring boot3连接cassandra数据库失败

使用spring boot3连接cassandra数据库时失败，提示需要显示【Current contact points are: Node(endPoint=/127.0.0.1:9042, hostId=de19c83a-0d23-472a-a5cd-3e24d5aa0516, hashCode=387751e6)=datacenter1. Current DCs in this cluster are: datacenter1】

pom文件配置：


<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>20</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-mongodb</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-cassandra</artifactId>
        </dependency>

        
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

yml文件配置：

server:
    port: 9090
cassandra:
    contactpoints: 172.31.208.1:9042
    keyspacename: tacocloud
    localdatacenter: datacenter1
spring:
    datasource:
        url: jdbc:mysql://127.0.0.1:3306/Taco
        username: root
        password: root
    jpa:
        database: MYSQL
        hibernate:
            ddl-auto: update
    data:
        cassandra:
            keyspace-name: tacocloud
            local-datacenter: dc1
            contact-points:
            - 172.31.208.1
            port: 9042
        mongodb:
            host: 172.31.208.1
            port: 27017
            database: Taco

报错信息：
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.data.cassandra.CassandraDataAutoConfiguration': Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'cassandraSession' defined in class path resource [org/springframework/boot/autoconfigure/cassandra/CassandraAutoConfiguration.class]: Failed to instantiate [com.datastax.oss.driver.api.core.CqlSession]: Factory method 'cassandraSession' threw exception with message: Since you provided explicit contact points, the local DC must be explicitly set (see basic.load-balancing-policy.local-datacenter in the config, or set it programmatically with SessionBuilder.withLocalDatacenter). Current contact points are: Node(endPoint=/127.0.0.1:9042, hostId=de19c83a-0d23-472a-a5cd-3e24d5aa0516, hashCode=387751e6)=datacenter1. Current DCs in this cluster are: datacenter1
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:800) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:245) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1352) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1189) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:560) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.10.jar:6.0.10]        
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:973) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:941) ~[spring-context-6.0.10.jar:6.0.10]
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:608) ~[spring-context-6.0.10.jar:6.0.10]
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:146) ~[spring-boot-3.1.1.jar:3.1.1]
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734) ~[spring-boot-3.1.1.jar:3.1.1]
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:436) ~[spring-boot-3.1.1.jar:3.1.1]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) ~[spring-boot-3.1.1.jar:3.1.1]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306) ~[spring-boot-3.1.1.jar:3.1.1]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295) ~[spring-boot-3.1.1.jar:3.1.1]
        at com.example.demo.DemoApplication.main(DemoApplication.java:10) ~[classes/:na]
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) ~[na:na]
        at java.base/java.lang.reflect.Method.invoke(Method.java:578) ~[na:na]
        at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:50) ~[spring-boot-devtools-3.1.1.jar:3.1.1]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cassandraSession' defined in class path resource [org/springframework/boot/autoconfigure/cassandra/CassandraAutoConfiguration.class]: Failed to instantiate [com.datastax.oss.driver.api.core.CqlSession]: Factory method 'cassandraSession' threw exception with message: Since you provided explicit contact points, the local DC must be explicitly set (see basic.load-balancing-policy.local-datacenter in the config, or set it programmatically with SessionBuilder.withLocalDatacenter). Current contact points are: Node(endPoint=/127.0.0.1:9042, hostId=de19c83a-0d23-472a-a5cd-3e24d5aa0516, hashCode=387751e6)=datacenter1. Current DCs in this cluster are: datacenter1
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:659) ~[spring-beans-6.0.10.jar:6.0.10]      
        at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:647) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1332) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1162) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:560) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:326) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:324) ~[spring-beans-6.0.10.jar:6.0.10]        
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:254) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1417) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1337) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:888) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:791) ~[spring-beans-6.0.10.jar:6.0.10]
        ... 22 common frames omitted
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.datastax.oss.driver.api.core.CqlSession]: Factory method 'cassandraSession' threw exception with message: Since you provided explicit contact points, the local DC must be explicitly set (see basic.load-balancing-policy.local-datacenter in the config, or set it programmatically with SessionBuilder.withLocalDatacenter). Current contact points are: Node(endPoint=/127.0.0.1:9042, hostId=de19c83a-0d23-472a-a5cd-3e24d5aa0516, hashCode=387751e6)=datacenter1. Current DCs in this cluster are: datacenter1
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:171) ~[spring-beans-6.0.10.jar:6.0.10]
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:655) ~[spring-beans-6.0.10.jar:6.0.10]      
        ... 36 common frames omitted
Caused by: java.lang.IllegalStateException: Since you provided explicit contact points, the local DC must be explicitly set (see basic.load-balancing-policy.local-datacenter in the config, or set it programmatically with SessionBuilder.withLocalDatacenter). Current contact points are: Node(endPoint=/127.0.0.1:9042, hostId=de19c83a-0d23-472a-a5cd-3e24d5aa0516, hashCode=387751e6)=datacenter1. Current DCs in this cluster are: datacenter1
        at com.datastax.oss.driver.internal.core.loadbalancing.helper.MandatoryLocalDcHelper.discoverLocalDc(MandatoryLocalDcHelper.java:91) ~[java-driver-core-4.15.0.jar:na]
        at com.datastax.oss.driver.internal.core.loadbalancing.DefaultLoadBalancingPolicy.discoverLocalDc(DefaultLoadBalancingPolicy.java:120) ~[java-driver-core-4.15.0.jar:na]
        at com.datastax.oss.driver.internal.core.loadbalancing.BasicLoadBalancingPolicy.init(BasicLoadBalancingPolicy.java:158) ~[java-driver-core-4.15.0.jar:na]
        at com.datastax.oss.driver.internal.core.metadata.LoadBalancingPolicyWrapper.init(LoadBalancingPolicyWrapper.java:121) ~[java-driver-core-4.15.0.jar:na]
        at com.datastax.oss.driver.internal.core.session.DefaultSession$SingleThreaded.initializePools(DefaultSession.java:471) ~[java-driver-core-4.15.0.jar:na]
        at com.datastax.oss.driver.internal.core.session.DefaultSession$SingleThreaded.lambda$init$5(DefaultSession.java:389) ~[java-driver-core-4.15.0.jar:na]
        at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2179) ~[na:na]
        at com.datastax.oss.driver.internal.core.metadata.MetadataManager$SingleThreaded.lambda$startSchemaRequest$1(MetadataManager.java:447) ~[java-driver-core-4.15.0.jar:na]
        at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:863) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:841) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:614) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:653) ~[na:na]
        at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[na:na]
        at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) ~[netty-common-4.1.94.Final.jar:4.1.94.Final]
        at io.netty.channel.DefaultEventLoop.run(DefaultEventLoop.java:54) ~[netty-transport-4.1.94.Final.jar:4.1.94.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[netty-common-4.1.94.Final.jar:4.1.94.Final]     
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.94.Final.jar:4.1.94.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.94.Final.jar:4.1.94.Final]
        at java.base/java.lang.Thread.run(Thread.java:1623) ~[na:na]

cassandra配置文件cassandra-rackdc：

These properties are used with GossipingPropertyFileSnitch and will

indicate the rack and dc for this node

dc=dc1
rack=rack1

实在不会了， 希望god们指点

  • 写回答

3条回答 默认 最新

  • 游一游走一走 2023-07-04 17:14
    关注
    spring.data.cassandra.local-datacenter=datacenter1
spring.cassandra.local-datacenter=datacenter1
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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