Ignite 未使用示例配置启动，"Cannot find class CassandraHelper for bean"
Ignite not launching with example configuration, "Cannot find class CassandraHelper for bean"
我正在尝试将 Cassandra 放入 Ignite 中进行一些原型设计，但在启动 Ignite 时遇到了一些困难。
到目前为止，我对 Ignite 所做的只是更改默认值-config.xml，添加连接-settings.xml 并将 Cassandra/Ignite 的依赖项添加到 libs 文件夹。
此时，我无法启动 Ignite。所有错误似乎都与 connection-settings.xml.
中引用的 类 有关
我的调试：
我从错误开始
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.apache.ignite.tests.utils.CassandraHelper] for bean with name 'contactPoints' defined...
我下载了 Ignite 的源代码以检查连接路径中的文件 - settings.xml 是否包含预期的功能。
找到。 -name CassandraHelper.java 告诉我在 Ignite 的源代码中有两个这样的文件：
./modules/cassandra/store/src/main/java/org/apache/ignite/cache/store/cassandra/common/CassandraHelper.java
./modules/cassandra/store/src/test/java/org/apache/ignite/tests/utils/CassandraHelper.java
只有后者实际上包含函数 getContactPointsArray。出于好奇，我把connection-settings.xml改成了指向org.apache.ignite.cache.store.cassandra.common.CassandraHelper，果然错误从"Cannot find class"变成了"No such method 'getContactPointsArray'"。
查看源代码，我发现 Ignite 未能找到的其他文件也在 src/test 目录下的预期位置，而不是 src/main，所以我怀疑 - 对于某些人原因- Ignite 正在 src/main 下搜索，而它应该在 src/test 下搜索。这似乎不是我应该手动配置的东西，而且我不确定如何通过 connection-settings.xml 告诉 Ignite 在另一个目录下查找。
在 Ignite 和 Cassandra 方面，我绝不是专家，所以如果我在设置过程中犯了一些奇怪的错误，我不会感到惊讶，但到目前为止我无法弄清楚我犯了什么错误可能已经做了。任何建议，将不胜感激。
我的文件：
default-config.xml（取自https://apacheignite.readme.io/v1.6/docs/examples，我删除了缓存2）。
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- Cassandra connection settings -->
<import resource="connection-settings.xml" />
<!-- Persistence settings for 'cache1' -->
<bean id="cache1_persistence_settings" class="org.apache.ignite.cache.store.cassandra.utils.persistence.KeyValuePersistenceSettings">
<constructor-arg type="org.springframework.core.io.Resource" value="classpath:org/apache/ignite/tests/persistence/blob/persistence-settings-1.xml" />
</bean>
<!-- Ignite configuration -->
<bean id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
<property name="cacheConfiguration">
<!-- Configuring persistence for "cache1" cache -->
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="name" value="cache1"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="true"/>
<property name="cacheStoreFactory">
<bean class="org.apache.ignite.cache.store.cassandra.CassandraCacheStoreFactory">
<property name="dataSourceBean" value="cassandraAdminDataSource"/>
<property name="persistenceSettingsBean" value="cache1_persistence_settings"/>
</bean>
</property>
</bean>
</property>
<!-- Explicitly configure TCP discovery SPI to provide list of initial nodes. -->
<property name="discoverySpi">
<bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
<property name="ipFinder">
<!--
Ignite provides several options for automatic discovery that can be used
instead os static IP based discovery. For information on all options refer
to our documentation: http://apacheignite.readme.io/docs/cluster-config
-->
<!-- Uncomment static IP finder to enable static-based discovery of initial nodes. -->
<!--<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">-->
<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.multicast.TcpDiscoveryMulticastIpFinder">
<property name="addresses">
<list>
<!-- In distributed environment, replace with actual host IP address. -->
<value>127.0.0.1:47500..47509</value>
</list>
</property>
</bean>
</property>
</bean>
</property>
</bean>
</beans>
connection-settings.xml（取自同一网页，AdminCredentials 内容已删除，因为其他几个 Whosebug 线程提到在小型原型阶段不需要它们）
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="loadBalancingPolicy" class="com.datastax.driver.core.policies.RoundRobinPolicy"/>
<bean id="contactPoints" class="org.apache.ignite.tests.utils.CassandraHelper" factory-method="getContactPointsArray"/>
<bean id="cassandraAdminDataSource" class="org.apache.ignite.cache.store.cassandra.utils.datasource.DataSource">
<property name="credentials" ref="cassandraAdminCredentials"/>
<property name="contactPoints" ref="contactPoints"/>
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
<bean id="cassandraRegularDataSource" class="org.apache.ignite.cache.store.cassandra.datasource.DataSource">
<property name="credentials" ref="cassandraRegularCredentials"/>
<property name="contactPoints" ref="contactPoints"/>
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
</beans>
pom.xml 依赖
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myapp</groupId>
<artifactId>myapp</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>myapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
<version>1.0</version>
</dependency>
<!-- Ignite -->
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-core</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-spring</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-indexing</artifactId>
<version>2.0.0</version>
</dependency>
<!-- Cassandra -->
<dependency>
<groupId>org.apache.cassandra</groupId>
<artifactId>cassandra-all</artifactId>
<version>3.10</version>
</dependency>
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>3.2.0</version>
</dependency>
<!-- Ignite-Cassandra Bridge -->
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra-store</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra-serializers</artifactId>
<version>2.0.0</version>
</dependency>
<!-- Discontinued? 1.8.0 is latest.
I think ignite-cassandra-store replaced this. -->
<!-- <dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra</artifactId>
<version>1.8.0</version>
</dependency> -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.myapp.myclass</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<!-- Used to package all our dependancies. Ignite needs this. -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>copy</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
提前致谢！
org.apache.ignite.tests.utils.CassandraHelper class 仅用于 Ignite 测试，显然它不包含在发布包中。
要使其正常工作，您可以编写自己的工厂方法或从 CassandraHelper 复制它。
最简单的方法是在 Spring 配置中设置它：
<util:list id="contactPoints" value-type="java.lang.String">
<value>127.0.0.1:9160</value>
</util:list>
我正在尝试将 Cassandra 放入 Ignite 中进行一些原型设计，但在启动 Ignite 时遇到了一些困难。
到目前为止，我对 Ignite 所做的只是更改默认值-config.xml，添加连接-settings.xml 并将 Cassandra/Ignite 的依赖项添加到 libs 文件夹。
此时，我无法启动 Ignite。所有错误似乎都与 connection-settings.xml.
中引用的 类 有关我的调试： 我从错误开始
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.apache.ignite.tests.utils.CassandraHelper] for bean with name 'contactPoints' defined...
我下载了 Ignite 的源代码以检查连接路径中的文件 - settings.xml 是否包含预期的功能。
找到。 -name CassandraHelper.java 告诉我在 Ignite 的源代码中有两个这样的文件：
./modules/cassandra/store/src/main/java/org/apache/ignite/cache/store/cassandra/common/CassandraHelper.java
./modules/cassandra/store/src/test/java/org/apache/ignite/tests/utils/CassandraHelper.java
只有后者实际上包含函数 getContactPointsArray。出于好奇，我把connection-settings.xml改成了指向org.apache.ignite.cache.store.cassandra.common.CassandraHelper，果然错误从"Cannot find class"变成了"No such method 'getContactPointsArray'"。
查看源代码，我发现 Ignite 未能找到的其他文件也在 src/test 目录下的预期位置，而不是 src/main，所以我怀疑 - 对于某些人原因- Ignite 正在 src/main 下搜索，而它应该在 src/test 下搜索。这似乎不是我应该手动配置的东西，而且我不确定如何通过 connection-settings.xml 告诉 Ignite 在另一个目录下查找。
在 Ignite 和 Cassandra 方面，我绝不是专家，所以如果我在设置过程中犯了一些奇怪的错误，我不会感到惊讶，但到目前为止我无法弄清楚我犯了什么错误可能已经做了。任何建议，将不胜感激。
我的文件：
default-config.xml（取自https://apacheignite.readme.io/v1.6/docs/examples，我删除了缓存2）。
<?xml version="1.0" encoding="UTF-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- Cassandra connection settings -->
<import resource="connection-settings.xml" />
<!-- Persistence settings for 'cache1' -->
<bean id="cache1_persistence_settings" class="org.apache.ignite.cache.store.cassandra.utils.persistence.KeyValuePersistenceSettings">
<constructor-arg type="org.springframework.core.io.Resource" value="classpath:org/apache/ignite/tests/persistence/blob/persistence-settings-1.xml" />
</bean>
<!-- Ignite configuration -->
<bean id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
<property name="cacheConfiguration">
<!-- Configuring persistence for "cache1" cache -->
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<property name="name" value="cache1"/>
<property name="readThrough" value="true"/>
<property name="writeThrough" value="true"/>
<property name="cacheStoreFactory">
<bean class="org.apache.ignite.cache.store.cassandra.CassandraCacheStoreFactory">
<property name="dataSourceBean" value="cassandraAdminDataSource"/>
<property name="persistenceSettingsBean" value="cache1_persistence_settings"/>
</bean>
</property>
</bean>
</property>
<!-- Explicitly configure TCP discovery SPI to provide list of initial nodes. -->
<property name="discoverySpi">
<bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
<property name="ipFinder">
<!--
Ignite provides several options for automatic discovery that can be used
instead os static IP based discovery. For information on all options refer
to our documentation: http://apacheignite.readme.io/docs/cluster-config
-->
<!-- Uncomment static IP finder to enable static-based discovery of initial nodes. -->
<!--<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">-->
<bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.multicast.TcpDiscoveryMulticastIpFinder">
<property name="addresses">
<list>
<!-- In distributed environment, replace with actual host IP address. -->
<value>127.0.0.1:47500..47509</value>
</list>
</property>
</bean>
</property>
</bean>
</property>
</bean>
</beans>
connection-settings.xml（取自同一网页，AdminCredentials 内容已删除，因为其他几个 Whosebug 线程提到在小型原型阶段不需要它们）
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="loadBalancingPolicy" class="com.datastax.driver.core.policies.RoundRobinPolicy"/>
<bean id="contactPoints" class="org.apache.ignite.tests.utils.CassandraHelper" factory-method="getContactPointsArray"/>
<bean id="cassandraAdminDataSource" class="org.apache.ignite.cache.store.cassandra.utils.datasource.DataSource">
<property name="credentials" ref="cassandraAdminCredentials"/>
<property name="contactPoints" ref="contactPoints"/>
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
<bean id="cassandraRegularDataSource" class="org.apache.ignite.cache.store.cassandra.datasource.DataSource">
<property name="credentials" ref="cassandraRegularCredentials"/>
<property name="contactPoints" ref="contactPoints"/>
<property name="readConsistency" value="ONE"/>
<property name="writeConsistency" value="ONE"/>
<property name="loadBalancingPolicy" ref="loadBalancingPolicy"/>
</bean>
</beans>
pom.xml 依赖
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.myapp</groupId>
<artifactId>myapp</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>myapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
<version>1.0</version>
</dependency>
<!-- Ignite -->
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-core</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-spring</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-indexing</artifactId>
<version>2.0.0</version>
</dependency>
<!-- Cassandra -->
<dependency>
<groupId>org.apache.cassandra</groupId>
<artifactId>cassandra-all</artifactId>
<version>3.10</version>
</dependency>
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>3.2.0</version>
</dependency>
<!-- Ignite-Cassandra Bridge -->
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra-store</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra-serializers</artifactId>
<version>2.0.0</version>
</dependency>
<!-- Discontinued? 1.8.0 is latest.
I think ignite-cassandra-store replaced this. -->
<!-- <dependency>
<groupId>org.apache.ignite</groupId>
<artifactId>ignite-cassandra</artifactId>
<version>1.8.0</version>
</dependency> -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.myapp.myclass</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
<!-- Used to package all our dependancies. Ignite needs this. -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>copy</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
提前致谢！
org.apache.ignite.tests.utils.CassandraHelper class 仅用于 Ignite 测试，显然它不包含在发布包中。
要使其正常工作，您可以编写自己的工厂方法或从 CassandraHelper 复制它。
最简单的方法是在 Spring 配置中设置它：
<util:list id="contactPoints" value-type="java.lang.String">
<value>127.0.0.1:9160</value>
</util:list>