无法找到XML架构命名空间的Spring NamespaceHandler [http://www.springframework.org/schema/batch]

时间：2011-12-15 17:14:23

标签： spring spring-batch

场合

我正在使用Spring Batch为我们的数据仓库构建累积快照，而且我遇到了一个我无法弄清楚的配置障碍。

我使用 Spring Template Project 创建了一个带有STS（SpringSource Tool Suite 2.8.1）的简单Spring批处理项目。这些是我创建的两个xml配置文件：

发射-context.xml中 

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:batch="http://www.springframework.org/schema/batch"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="
    http://www.springframework.org/schema/batch http://www.springframework.org/schema/batch/spring-batch-2.1.xsd
    http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<context:property-placeholder location="classpath:batch.properties" />

<context:component-scan base-package="edu.kdc.visioncards" />

<jdbc:initialize-database data-source="dataSource">
    <jdbc:script location="${batch.schema.script}" />
</jdbc:initialize-database>

<batch:job-repository id="jobRepository" />

<import resource="classpath:/META-INF/spring/module-context.xml" />

和 module-context.xml 

 <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:batch="http://www.springframework.org/schema/batch"
xsi:schemaLocation="http://www.springframework.org/schema/batch http://www.springframework.org/schema/batch/spring-batch-2.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<description>Example job to get you started. It provides a skeleton for a typical batch application.</description>

<batch:job id="job1">
    <batch:step id="step1"  >           
        <batch:tasklet transaction-manager="transactionManager" start-limit="100" >
            <batch:chunk reader="reader" writer="writer" commit-interval="1" />
        </batch:tasklet>
    </batch:step>
</batch:job> 

</beans>

问题

我运行以下命令来编译和打包项目： mvn clean compile install

然后我这样做：

  1. cd 到目标文件夹

  2. 通过CommandLineJobRunner运行作业： java -jar batchprimer-1.0.jar META-INF / spring / module-context.xml job1

    3. 我收到以下错误：

    C:\stsworkspace\BatchPrimer\target>java -jar batchprimer-1.0.jar META-INF/spring
/module-context.xml job1
2011-12-15 12:03:53,421 INFO [org.springframework.context.support.ClassPathXmlAp
plicationContext] - <Refreshing org.springframework.context.support.ClassPathXml
ApplicationContext@84abc9: startup date [Thu Dec 15 12:03:53 EST 2011]; root of
context hierarchy>
2011-12-15 12:03:53,468 INFO [org.springframework.beans.factory.xml.XmlBeanDefin
itionReader] - <Loading XML bean definitions from class path resource [META-INF/
spring/module-context.xml]>
2011-12-15 12:03:53,796 ERROR [org.springframework.batch.core.launch.support.Com
mandLineJobRunner] - <Job Terminated in error: Configuration problem: Unable to
locate Spring NamespaceHandler for XML schema namespace [http://www.springframew
ork.org/schema/batch]
Offending resource: class path resource [META-INF/spring/module-context.xml]
>
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Config
uration problem: Unable to locate Spring NamespaceHandler for XML schema namespa
ce [http://www.springframework.org/schema/batch]
Offending resource: class path resource [META-INF/spring/module-context.xml]

        at org.springframework.beans.factory.parsing.FailFastProblemReporter.err
or(FailFastProblemReporter.java:68)
        at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderC
ontext.java:85)
        at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderC
ontext.java:80)
        at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.er
ror(BeanDefinitionParserDelegate.java:284)
        at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.pa
rseCustomElement(BeanDefinitionParserDelegate.java:1335)
        at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.pa
rseCustomElement(BeanDefinitionParserDelegate.java:1328)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentRe
ader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:135)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentRe
ader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:93)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registe
rBeanDefinitions(XmlBeanDefinitionReader.java:493)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadB
eanDefinitions(XmlBeanDefinitionReader.java:390)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea
nDefinitions(XmlBeanDefinitionReader.java:334)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea
nDefinitions(XmlBeanDefinitionReader.java:302)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReade
r.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
        at org.springframework.context.support.AbstractXmlApplicationContext.loa
dBeanDefinitions(AbstractXmlApplicationContext.java:126)
        at org.springframework.context.support.AbstractXmlApplicationContext.loa
dBeanDefinitions(AbstractXmlApplicationContext.java:92)
        at org.springframework.context.support.AbstractRefreshableApplicationCon
text.refreshBeanFactory(AbstractRefreshableApplicationContext.java:130)
        at org.springframework.context.support.AbstractApplicationContext.obtain
FreshBeanFactory(AbstractApplicationContext.java:467)
        at org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:397)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<i
nit>(ClassPathXmlApplicationContext.java:139)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<i
nit>(ClassPathXmlApplicationContext.java:83)
        at org.springframework.batch.core.launch.support.CommandLineJobRunner.st
art(CommandLineJobRunner.java:282)
        at org.springframework.batch.core.launch.support.CommandLineJobRunner.ma
in(CommandLineJobRunner.java:574)

    额外的东西

    在使用mvn install命令填充的目标文件夹中，我有以下内容：

    1. 类文件夹
    2. 包含所有maven依赖项的 lib 文件夹
    3. maven-archiver 文件夹
    4. 测试类文件夹
    5. batchprimer-1.0.jar

      6. 在jar中，在 META-INF / MANIFEST.MF 中。我有如下：

      Manifest-Version: 1.0

Archiver-Version: Plexus Archiver

Created-By: Apache Maven

Built-By: dpardo

Build-Jdk: 1.6.0_20

Main-Class: org.springframework.batch.core.launch.support.CommandLineJ
 obRunner

Class-Path: lib/spring-jdbc-3.0.6.RELEASE.jar lib/spring-beans-3.0.6.R
 ELEASE.jar lib/spring-core-3.0.6.RELEASE.jar lib/spring-asm-3.0.6.REL
 EASE.jar lib/commons-logging-1.1.1.jar lib/spring-tx-3.0.6.RELEASE.ja
 r lib/aopalliance-1.0.jar lib/spring-aop-3.0.6.RELEASE.jar lib/spring
 -context-3.0.6.RELEASE.jar lib/spring-expression-3.0.6.RELEASE.jar li
 b/cglib-nodep-2.2.jar lib/spring-batch-core-2.1.7.RELEASE.jar lib/spr
 ing-batch-infrastructure-2.1.7.RELEASE.jar lib/xstream-1.3.jar lib/xp
 p3_min-1.1.4c.jar lib/jettison-1.1.jar lib/commons-io-1.4.jar lib/com
 mons-dbcp-1.2.2.jar lib/commons-pool-1.3.jar lib/hsqldb-1.8.0.7.jar l
 ib/aspectjrt-1.6.8.jar lib/aspectjweaver-1.6.8.jar lib/log4j-1.2.14.j
 ar lib/slf4j-log4j12-1.5.8.jar lib/slf4j-api-1.5.8.jar lib/mysql-conn
 ector-java-5.1.3.jar

      所以我不认为这是一个类路径问题，因为在控制台中它似乎找到了罐子。

      我尝试了什么

      根据错误，我粘贴了以下网址

      http://www.springframework.org/schema/batch/

      并且Spring Batch的命名空间的地址似乎是正确的。我没有找到任何有用的东西。我在某处读到“某些东西”可能会覆盖文件的名称空间但却不能理解为什么，为了什么，以及/或如何解决它。

      这只是开箱即用，如果没有做任何修改，附加组件或任何其他内容已经无法正常工作。有任何想法吗？

      由于

      解

      除了下面标记为正确的解决方案。我还必须将launch-context.xml从组件扫描更改为常规弹簧连接，如下所示：

      <!-- Commented this 
<context:property-placeholder location="classpath:batch.properties" />  


<jdbc:initialize-database data-source="dataSource">
    <jdbc:script location="${batch.schema.script}" />
</jdbc:initialize-database>
-->
<!-- Replace it with this below -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName" value="${batch.jdbc.driver}" />
    <property name="url" value="${batch.jdbc.url}" />
    <property name="username" value="${batch.jdbc.user}" />
    <property name="password" value="${batch.jdbc.password}" />
</bean>

<bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
    lazy-init="true">
    <property name="dataSource" ref="dataSource" />
</bean>

<bean id="placeholderProperties"
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location" value="classpath:batch.properties" />
    <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
    <property name="ignoreUnresolvablePlaceholders" value="true" />
    <property name="order" value="1" />
</bean>

5 个答案:

答案 0 :(得分：28)

  

通过CommandLineJobRunner运行作业：java -jar   batchprimer-1.0.jar META-INF / spring / module-context.xml job1

即使使用完整的目标文件夹，您也必须提供java命令的类路径信息，为了简化配置，您可以使用一体化可执行jar来尝试它，例如：使用maven-shade-plugin或可执行的shell脚本（.bat / .sh）以及所有需要的库，例如appassembler-maven-plugin

maven-shade-plugin示例配置（创建额外的jar）：

<plugin>
    <!-- create an all-in-one executable jar with maven-shade-plugin
         bound to phase:package 
         special handling for spring.handlers/spring.schemas files
         to prevent overwriting (maven-shade-plugin joins them to
         one file) 

         usage:
         cd to <project>/target
         java -jar hello-world-java-1.0-SNAPSHOT-executable.jar spring/batch/job/hello-world-job.xml helloWorldJob
         -->                     
    <artifactId>maven-shade-plugin</artifactId>
    <version>1.5</version>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>shade</goal>
            </goals>
            <configuration>
                <transformers>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                        <mainClass>org.springframework.batch.core.launch.support.CommandLineJobRunner</mainClass>
                    </transformer>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.handlers</resource>
                    </transformer>
                    <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.schemas</resource>
                    </transformer>
                </transformers>
                <shadedArtifactAttached>true</shadedArtifactAttached>
                <!-- configures the suffix name for the executable jar
                     here it will be '<project.artifact>-<project.version>-executable.jar'-->
                <shadedClassifierName>executable</shadedClassifierName>
            </configuration>
        </execution>
    </executions>
</plugin>

示例appassembler配置（创建子文件夹结构和.bat / .sh）：

<plugin>
    <artifactId>appassembler-maven-plugin</artifactId>
    <groupId>org.codehaus.mojo</groupId>
    <version>1.1.1</version>
    <configuration>
        <repositoryLayout>flat</repositoryLayout>
        <installArtifacts>false</installArtifacts>
        <target>${project.build.directory}/appassembler</target>
        <defaultJvmSettings>
            <initialMemorySize>512M</initialMemorySize>
            <maxMemorySize>1024M</maxMemorySize>
            <extraArguments>
                <extraArgument>-Dlog4j.configuration=../etc/log4j/log4j.properties</extraArgument>
            </extraArguments>
        </defaultJvmSettings>
        <configurationDirectory>etc</configurationDirectory>
        <daemons>
            <daemon>
                <id>applicationName</id>
                <mainClass>org.springframework.batch.core.launch.support.CommandLineJobRunner</mainClass>
                <commandLineArguments>
                    <commandLineArgument>spring/job-runner.xml</commandLineArgument>
                    <commandLineArgument>helloWorldJob</commandLineArgument>
                    <commandLineArgument>input.file.pattern=file:.../**/*.txt</commandLineArgument>
                </commandLineArguments>
                <platforms>
                    <platform>booter-unix</platform>
                    <platform>booter-windows</platform>
                </platforms>
            </daemon>
        </daemons>
    </configuration>
    <executions>
        <execution>
            <phase>package</phase>
            <goals>
                <goal>generate-daemons</goal>
                <goal>create-repository</goal>
            </goals>
        </execution>
    </executions>
</plugin>

答案 1 :(得分：1)

我使用的是Spring批量版3.X.X和其他Spring依赖版本4.X.X，并收到了上述错误。经过一些试验和错误，我发现保持所有弹簧版本类似修复了我的问题。因此建议您使用spring批量版本3.X.X或使spring-jdbc和spring-tx的弹簧依赖版本为2.X.X

问候，Rave

答案 2 :(得分：0)

您需要在运行时类路径上使用spring-batch.jar。它提供了一个能够处理特定命名空间的命名空间处理程序。

答案 3 :(得分：0)

导致错误是因为没有看到spring-batch-core-2.1.7.RELEASE.jar中的META-INF / spring.handlers文件。该文件包含

http\://www.springframework.org/schema/batch=org.springframework.batch.core.configuration.xml.CoreNamespaceHandler

它看起来像是一个类路径问题，或者像其他JAR中的spring.handlers文件一样（例如，spring-context）以某种方式优先。

答案 4 :(得分：0)

在我的情况下，它只是缺少spring事务依赖 - 或者可能指向旧的依赖。用3.1替换它会消除错误。

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