无法使Cassandra在基本应用程序中工作 [英] Unable to get Cassandra to Work in Basic Applcation

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问题描述

这是我当前的错误：

com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.1 (com.datastax.driver.core.TransportException: [/127.0.0.1] Unexpected exception triggered (java.lang.NoClassDefFoundError: Could not initialize class com.datastax.driver.core.Codec)))
    com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:186)
    com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:81)
    com.datastax.driver.core.Cluster$Manager.init(Cluster.java:773)
    com.datastax.driver.core.Cluster$Manager.access$100(Cluster.java:706)
    com.datastax.driver.core.Cluster.<init>(Cluster.java:79)
    com.datastax.driver.core.Cluster.<init>(Cluster.java:66)
    com.datastax.driver.core.Cluster$Builder.build(Cluster.java:687)
    com.t2.claims.persistence.CassandraClient.getOrCreateCluster(CassandraClient.java:12)
    com.t2.claims.persistence.CassandraClient.getOrCreateSession(CassandraClient.java:18)
    com.t2.claims.dao.AlertDaoImpl.findAll(AlertDaoImpl.java:25)
    com.t2.claims.controllers.AlertIndexController.doAfterCompose(AlertIndexController.java:36)
    org.zkoss.zk.ui.impl.UiEngineImpl.doAfterCompose(UiEngineImpl.java:529)
    ....

我觉得我要导入的每一个人工制品我的pom.xml，我需要（以及许多我不试试

I feel like I'm importing every artefact available im my pom.xml that I need to (as well as many I don't to try to get over this issue).

这是我的

我不明白为什么这不起作用。 code> pom.xml 以完整性：

Here's my pom.xml for completeness:

<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.t2.claims</groupId>
<artifactId>T2ClaimsPortal</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>T2ClaimsPortal</name>

<properties>
    <spring.version>3.2.0.RELEASE</spring.version>
    <zk.version>6.0.2.1</zk.version>
    <commons-lang.version>2.4</commons-lang.version>
    <commons-fileupload.version>1.2.1</commons-fileupload.version>
    <commons-io.version>1.3.1</commons-io.version>
    <commons-logging.version>1.1.1</commons-logging.version>
</properties>

<repositories>
    <repository>
        <id>spring-milestone</id>
        <name>Spring Maven MILESTONE Repository</name>
        <url>http://maven.springframework.org/milestone</url>
    </repository>

    <repository>
        <id>ZK EE</id>
        <url>https://maven.zkoss.org/repo/zk/ee/</url>
    </repository>
</repositories>


<dependencies>

    <!-- Hector -->

    <dependency>
        <groupId>me.prettyprint</groupId>
        <artifactId>hector-core</artifactId>
        <version>0.8.0-2</version>
    </dependency>

    <!-- cassandra -->

    <dependency>
        <groupId>com.datastax.cassandra</groupId>
        <artifactId>cassandra-driver-core</artifactId>
        <version>1.0.4</version>
    </dependency>

    <!-- cassandra dependencies -->

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.5.5</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.5.5</version>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>14.0.1</version>
    </dependency>
    <dependency>
        <groupId>com.yammer.metrics</groupId>
        <artifactId>metrics-core</artifactId>
        <version>2.2.0</version>
    </dependency>
    <dependency>
        <groupId>io.netty</groupId>
        <artifactId>netty</artifactId>
        <version>3.7.0.Final</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cassandra</groupId>
        <artifactId>cassandra-all</artifactId>
        <version>1.2.9</version>
    </dependency>
    <dependency>
        <groupId>org.apache.thrift</groupId>
        <artifactId>libthrift</artifactId>
        <version>0.7.0</version>
    </dependency>
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-core-asl</artifactId>
        <version>1.9.2</version>
    </dependency>
    <dependency>
        <groupId>org.testng</groupId>
        <artifactId>testng</artifactId>
        <version>6.8.1</version>
    </dependency>

    <!-- spring framework -->

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-oxm</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc-portlet</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.integration</groupId>
        <artifactId>spring-integration-core</artifactId>
        <version>2.2.6.RELEASE</version>
    </dependency>

    <!-- ZK -->

    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zkplus</artifactId>
        <version>${zk.version}</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zkspring-core</artifactId>
        <version>3.1</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.theme</groupId>
        <artifactId>sapphire</artifactId>
        <version>${zk.version}</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zul</artifactId>
        <version>${zk.version}</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.common</groupId>
        <artifactId>zcommon</artifactId>
        <version>${zk.version}</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.zk</groupId>
        <artifactId>zk</artifactId>
        <version>${zk.version}</version>
    </dependency>
    <dependency>
        <groupId>org.zkoss.common</groupId>
        <artifactId>zweb</artifactId>
        <version>${zk.version}</version>
    </dependency>

    <!-- ZK dependencies -->

    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>${commons-logging.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>${commons-fileupload.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-lang</groupId>
        <artifactId>commons-lang</artifactId>
        <version>${commons-lang.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>${commons-io.version}</version>
    </dependency>
    <dependency>
        <groupId>commons-collections</groupId>
        <artifactId>commons-collections</artifactId>
        <version>3.2.1</version>
    </dependency>
    <dependency>
        <groupId>commons-codec</groupId>
        <artifactId>commons-codec</artifactId>
        <version>1.7</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-io</artifactId>
        <version>1.3.2</version>
    </dependency>
    <dependency>
        <groupId>commons-configuration</groupId>
        <artifactId>commons-configuration</artifactId>
        <version>1.6</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>

    <!-- javax servlet -->

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.1</version>
        <scope>provided</scope>
    </dependency>

    <!-- ***************************************************************************** -->
    <!-- ************************** JACKSON ****************************************** -->
    <!-- ***************************************************************************** -->
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>1.9.10</version>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.0.2</version>
    </dependency>

    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.1</version>
    </dependency>


    <dependency>
        <groupId>org.jgroups</groupId>
        <artifactId>jgroups</artifactId>
        <version>3.2.0.Final</version>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-math</artifactId>
        <version>2.0</version>
    </dependency>

    <!-- test -->

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.8.2</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>org.apache.openjpa</groupId>
        <artifactId>openjpa</artifactId>
        <version>2.2.0</version>
    </dependency>

    <dependency>
        <groupId>org.hectorclient</groupId>
        <artifactId>hector-core</artifactId>
        <version>1.1-4</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>com.datastax.cassandra</groupId>
        <artifactId>cassandra-driver-core</artifactId>
        <version>1.0.4</version>
    </dependency>

    <dependency>
        <groupId>org.hectorclient</groupId>
        <artifactId>hector-object-mapper</artifactId>
        <version>3.1-09</version>
        <exclusions>
            <exclusion>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-client</artifactId>
        <version>1.8</version>
    </dependency>

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.2</version>
    </dependency>

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>fluent-hc</artifactId>
        <version>4.2</version>
    </dependency>

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpcore</artifactId>
        <version>4.2</version>
    </dependency>

    <dependency>
        <groupId>org.jboss.netty</groupId>
        <artifactId>netty</artifactId>
        <version>3.2.9.Final</version>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-recipes</artifactId>
        <version>2.2.0-incubating</version>
    </dependency>
</dependencies>

<build>
    <finalName>T2ClaimsPortal</finalName>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
        <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <configuration>
                <includes>
                    <include>**/*Tests.java</include>
                </includes>
            </configuration>
        </plugin>
    </plugins>
</build>

为什么我会得到这个异常？我有一个本地运行的cassandra客户端。 （版本1.2.11）。

Can someone provide me some understanding why I would get this exception? I have a cassandra client running locally. (version 1.2.11).

推荐答案

这不是你的pom文件的问题。您的客户端（DataStax Java驱动程序）无法访问您的cassandra数据库。这可能是由于以下几个原因：

This is not a problem of your pom file. Your client (DataStax Java driver) can not reach your cassandra database. It could be because of a few reasons:


  • 检查您正在使用的节点的地址。

  • 检查端口，Cassandra本机二进制协议的默认端口为9042.

更多信息： http：//www.datastax .com / documentation / developer / java-driver / 1.0 / webhelp / index.html＃java-driver / quick_start / qsSimpleClientCreate_t.html

这篇关于无法使Cassandra在基本应用程序中工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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