Spring引导和drools集成

Question

Spring引导和drools集成

gaj*_*jos 4 java spring drools spring-boot

我正在尝试使用Spring Boot 1.2.2.RELEASE运行drools 6.2.0.Final.我按照文档说明配置了drools.我的kie-context.xml配置文件是我保存drools bean的地方,如下所示:

<?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:kie="http://drools.org/schema/kie-spring"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                      http://drools.org/schema/kie-spring http://drools.org/schema/kie-spring.xsd">

<kie:kmodule id="sample_module">
    <kie:kbase name="kbase1" packages="composition-rules">
        <kie:ksession name="ksession1" type="stateless"/>
    </kie:kbase>
</kie:kmodule>

<bean id="kiePostProcessor" class="org.kie.spring.KModuleBeanFactoryPostProcessor"/>

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当我尝试编译应用程序并使用spring-boot运行时,我收到以下错误:

java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6ab6cc3b: startup date [Wed Apr 15 13:57:02 CEST 2015]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:357)
at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:877)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.doClose(EmbeddedWebApplicationContext.java:150)
at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:836)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:342)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
at skeleton.StorfinoApplication.main(StorfinoApplication.java:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:745)

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Unable to get all ZipFile entries: /home/lukasz/dev/skeleton/application/target/application-1.0-SNAPSHOT.jar!
at org.drools.core.util.IoUtils.indexZipFile(IoUtils.java:133)
at org.drools.compiler.kie.builder.impl.ZipKieModule.<init>(ZipKieModule.java:20)
at org.drools.compiler.kie.builder.impl.ClasspathKieProject.createInternalKieModule(ClasspathKieProject.java:186)
at org.kie.spring.KModuleBeanFactoryPostProcessor.createKieModule(KModuleBeanFactoryPostProcessor.java:189)
at org.kie.spring.KModuleBeanFactoryPostProcessor.addKieModuleToRepo(KModuleBeanFactoryPostProcessor.java:162)
at org.kie.spring.KModuleBeanFactoryPostProcessor.postProcessBeanFactory(KModuleBeanFactoryPostProcessor.java:121)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:265)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:177)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:606)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:462)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
at skeleton.StorfinoApplication.main(StorfinoApplication.java:23)
... 6 more
Caused by: java.io.FileNotFoundException: /home/user-name/dev/skeleton/application/target/application-1.0-SNAPSHOT.jar! (No such file or directory)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:220)
at java.util.zip.ZipFile.<init>(ZipFile.java:150)
at java.util.zip.ZipFile.<init>(ZipFile.java:164)
at org.drools.core.util.IoUtils.indexZipFile(IoUtils.java:124)
... 21 more

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我用于构建项目的命令是: mvn clean package我将其作为jar文件(java -jar application/target/application-1.0-SNAPSHOT.jar)运行.

引起我注意的一件事是文件路径(未找到的路径)末尾有一个感叹号(它不应该在这里).我观察到的另一件事是,当我在IntelijIdea中运行项目时,它成功构建并正常工作.

这种错误的原因是什么？

Answer 1

jon*_*ckt 9

我尝试了同样的结果,并为此建立了一个spring-boot-starter-drools,因为那里没有任何东西可供我使用.我没有使用XML-Configuration,因为最新的Spring配置只是关于使用Java - 我也建议你使用它.

建议:

只需使用启动器,如启动器或示例项目中所述

使用此工作配置将Drools集成到Spring Boot-Project中:

@Configuration
public class DroolsAutoConfiguration {

private static final String RULES_PATH = "rules/";

@Bean
public KieFileSystem kieFileSystem() throws IOException {
    KieFileSystem kieFileSystem = getKieServices().newKieFileSystem();
    for (Resource file : getRuleFiles()) {
        kieFileSystem.write(ResourceFactory.newClassPathResource(RULES_PATH + file.getFilename(), "UTF-8"));
    }        
    return kieFileSystem;
}

private Resource[] getRuleFiles() throws IOException {
    ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
    return resourcePatternResolver.getResources("classpath*:" + RULES_PATH + "**/*.*");
}

@Bean
public KieContainer kieContainer() throws IOException {
    final KieRepository kieRepository = getKieServices().getRepository();

    kieRepository.addKieModule(new KieModule() {
        public ReleaseId getReleaseId() {
            return kieRepository.getDefaultReleaseId();
        }
    });

    KieBuilder kieBuilder = getKieServices().newKieBuilder(kieFileSystem()); 
    kieBuilder.buildAll();

    return getKieServices().newKieContainer(kieRepository.getDefaultReleaseId());
}

private KieServices getKieServices() {
    return KieServices.Factory.get();
}

@Bean
public KieBase kieBase() throws IOException {
    return kieContainer().getKieBase();
}

@Bean
public KieSession kieSession() throws IOException {
    return kieContainer().newKieSession();
}

@Bean
public KModuleBeanFactoryPostProcessor kiePostProcessor() {
    return new KModuleBeanFactoryPostProcessor();
}
}

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有春季版本的冲突,因为Spring Boot基于Spring 4.x而kie-spring依赖于Spring 3.2 - 我得到了最愚蠢的异常,直到最后我排除了我的pom.xml中的所有3.2依赖:

<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-spring</artifactId>
<version>${drools.version}</version>
<exclusions>
    <exclusion>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
    </exclusion>
    <exclusion>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
    </exclusion>
    <exclusion>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
    </exclusion>
    <exclusion>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
    </exclusion>
</exclusions>
</dependency>

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