WFLYCTL0412:未安装的必需服务:

Question

我正在尝试在Wildfly 10.0中添加数据源,但是当我测试连接时,会抛出以下错误消息:

Unexpected HTTP response: 500

Request
{
    "address" => [
        ("subsystem" => "datasources"),
        ("data-source" => "PostgreCrawlazo")
    ],
    "operation" => "test-connection-in-pool"
}

Response

Internal Server Error
{
    "outcome" => "failed",
    "failure-description" => "WFLYJCA0040: failed to invoke operation: WFLYJCA0042: failed to match pool. Check JndiName: java:/crawlazo",
    "rolled-back" => true,
    "response-headers" => {"process-state" => "reload-required"}
}

来自服务器日志的错误:

2016-09-01 16:28:40,524 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "datasources"),
    ("data-source" => "PostgreCrawlazo")
]) - failure description: {
    "WFLYCTL0412: Required services that are not installed:" => [
        "jboss.jdbc-driver.postgres",
        "jboss.jdbc-driver.postgres"
    ],
    "WFLYCTL0180: Services with missing/unavailable dependencies" => [
        "jboss.driver-demander.java:/crawlazo is missing [jboss.jdbc-driver.postgres]",
        "org.wildfly.data-source.PostgreCrawlazo is missing [jboss.jdbc-driver.postgres]",
        "org.wildfly.data-source.PostgreCrawlazo is missing [jboss.jdbc-driver.postgres]"
    ]
}

我正在从standalone.xml和module.xml复制相同的配置文件

这是我如何在standalone.xml中设置数据源的一部分:

 <datasource jndi-name="java:/crawlazo" pool-name="PostgreCrawlazo" enabled="true">
                    <connection-url>jdbc:postgresql://x.x.x.x:5432/crawlazo</connection-url>
                    <driver>postgres</driver>
                    <pool>
                        <min-pool-size>1</min-pool-size>
                        <max-pool-size>40</max-pool-size>
                    </pool>
                    <security>
                        <user-name>someUser</user-name>
                        <password>somePasswd</password>
                    </security>
                </datasource>
                <drivers>
                    <driver name="h2" module="com.h2database.h2">
                        <xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
                    </driver>
                    <driver name="postgres" module="org.postgres">
                        <driver-class>org.postgresql.Driver</driver-class>
                    </driver>
            </drivers>

和module.xml:

<module xmlns="urn:jboss:module:1.0" name="org.postgresql">
    <resources>
        <resource-root path="postgresql-9.2-1004.jdbc3.jar"/>
    </resources>
    <dependencies>
        <module name="javax.api"/>
        <module name="javax.transaction.api"/>
    </dependencies>
</module>

我在部署文件夹中有一个postgresql-9.2-1004.jdbc3.jar.

为什么会出现此错误？我可以忘记配置什么？

Answer 1

驱动程序jar应该位于模块文件夹中,而不是在部署文件夹中,因为当您写下:

<resources>
    <resource-root path="postgresql-9.2-1004.jdbc3.jar"/>
</resources>

Answer 2

我的工作是这样的:

1 - 在WildFly安装目录中创建一个文件夹:\ modules\org\postgres\main

2 - 在上面的文件夹中创建一个"module.xml",其内容为:

<?xml version='1.0' encoding='UTF-8'?>
<module xmlns="urn:jboss:module:1.1" name="org.postgres">

    <resources>
        <resource-root path="postgresql-9.4-1204-jdbc4.jar"/>
    </resources>

    <dependencies>
        <module name="javax.api"/>
        <module name="javax.transaction.api"/>
        <module name="javax.servlet.api" optional="true"/>
    </dependencies>
</module>

3 - 将驱动程序JAR文件复制到步骤1的同一文件夹中

4 - 在standalone.xml中添加数据源:

<datasource jta="false" jndi-name="java:jboss/datasources/YourDS" pool-name="YourDS" enabled="true" use-ccm="false">
    <connection-url>jdbc:postgresql://localhost:5432/yourDB</connection-url>
    <driver>postgres</driver>
    <security>
        <user-name>user</user-name>
        <password>pass/password>
    </security>
    <validation>
        <validate-on-match>false</validate-on-match>
        <background-validation>false</background-validation>
    </validation>
    <statement>
        <share-prepared-statements>false</share-prepared-statements>
    </statement>
</datasource>

<drivers>
    <driver name="postgres" module="org.postgres">
        <driver-class>org.postgresql.Driver</driver-class>
    </driver>
</drivers>