Spring引导和drools集成 [英] Spring boot and drools integration

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问题描述

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：

I'm trying to run drools 6.2.0.Final with Spring Boot 1.2.2.RELEASE. I configured drools as the documentation says. My kie-context.xml configuration file is where I keep the drools beans and looks like this:

<?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"/>

因为我尝试编译应用程序并使用spring-boot运行我收到以下错误：

as i try to compile the application and run with spring-boot i get the following error:

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

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

The command I used for building the project is: mvn clean package and i run it as a jar file (java -jar application/target/application-1.0-SNAPSHOT.jar).

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（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，它可以成功构建并正常工作。

A thing that caught my attention is that the file path (the one which is not found) has an exclamation mark at the end (it is not supposed to be here). The other thing that i observed is that when i run the project in IntelijIdea ide it succeeds to build and works properly.

这种错误的原因是什么？

What could be the reason of such error?

推荐答案

我尝试了同样的结果并最终建立了 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配置都是关于仅使用Java - 我还建议您使用。

I tried the same and ended up building an spring-boot-starter-drools for that, because there was nothing working for me out there. I didn´t use the XML-Configuration, because the latest Spring configuration is all about doing with Java only - i would also recommend that in your case.

建议：


  1. 只需使用启动器，如启动器或示例项目

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

  1. Just use the starter, as decribed in the starter or in the example project

  2. Integrating Drools into your Spring Boot-Project with this working configuration:

@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();
}
}


  • 有春季版本的冲突，因为Spring Boot基于Spring 4.x而且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：

  • There are conflicts of spring-versions, because Spring Boot is based upon Spring 4.x and kie-spring depends on Spring 3.2 - i got the silliest Exceptions, till in the end I excluded all the 3.2-dependecies in my pom.xml:

    <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>


    • 这篇关于Spring引导和drools集成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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