spingboot 2.1.3 與 elasticsearch7 兼容問題

pom 加入 elasticsearch7  的依賴，

        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>7.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>transport</artifactId>
            <version>7.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-client</artifactId>
            <version>7.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-high-level-client</artifactId>
            <version>7.3.1</version>
        </dependency>

 

然后做過簡單的測試， 發現了錯誤 ：

java.lang.NoSuchMethodError: org.elasticsearch.common.logging.Loggers.getLogger(Ljava/lang/String;)Lorg/apache/logging/log4j/Logger;

    at org.elasticsearch.transport.netty4.Netty4InternalESLogger.<init>(Netty4InternalESLogger.java:34)
    at org.elasticsearch.transport.netty4.Netty4Utils$1.newInstance(Netty4Utils.java:53)
    at io.netty.util.internal.logging.InternalLoggerFactory.getInstance(InternalLoggerFactory.java:93)
    at io.netty.util.internal.logging.InternalLoggerFactory.getInstance(InternalLoggerFactory.java:86)
    at io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:70)
    at io.netty.util.ConstantPool.<init>(ConstantPool.java:32)
    at io.netty.util.AttributeKey$1.<init>(AttributeKey.java:27)
    at io.netty.util.AttributeKey.<clinit>(AttributeKey.java:27)
    at org.elasticsearch.transport.netty4.Netty4Transport.<clinit>(Netty4Transport.java:231)
    at org.elasticsearch.transport.Netty4Plugin.getSettings(Netty4Plugin.java:56)
    at org.elasticsearch.plugins.PluginsService.lambda$getPluginSettings$0(PluginsService.java:89)
    at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:267)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
    at org.elasticsearch.plugins.PluginsService.getPluginSettings(PluginsService.java:89)
    at org.elasticsearch.client.transport.TransportClient.buildTemplate(TransportClient.java:156)
    at org.elasticsearch.client.transport.TransportClient.<init>(TransportClient.java:296)
    at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:130)
    at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:116)
    at org.elasticsearch.transport.client.PreBuiltTransportClient.<init>(PreBuiltTransportClient.java:106)
    at com.lkk.es.EsTest.testAaa(EsTest.java:30)
    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:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    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:498)
    at com.intellij.rt.execution.CommandLineWrapper.main(CommandLineWrapper.java:66)

 

也真不知道 是咋回事！奇葩！

 

仔細檢查 7.3.1 ，org.elasticsearch.common.logging.Loggers.getLogger  ,發現確實有那個 方法， 但是 實際上 引用的是 6.4.3 ！！

 

仔細檢查錯誤日志，發現org.elasticsearch.transport.netty4.Netty4InternalESLogger 竟然是 6.4.3 的jar， 進一步往上跟，發現 org.elasticsearch.transport.Netty4Plugin 也是 ， 再往上走就是正常的 7.3.1了！

 

原因已經基本清楚了， 就是 jar 的依賴 的引入哪里出了問題。 我的 spingboot 是 2.1.3， 默認是沒有 elasticsearch的吧

 

 

怎么解決呢？

 

首先，為什么會這樣的問題？ pom問題？ 仔細檢查了 pom 的依賴嗎沒有發現有 任何 transport-netty4-client-6.4.3 的引用啊！ 倒是發現了 transport-netty4-client-7.3.1 ！ 這樣看來就奇怪了！ 難道是 隱藏的 依賴？

 

需要指定 elasticsearch.version 嗎？ 試了， 好像也沒有用。。

 

仔細檢查pom

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>test_system</artifactId>
        <groupId>com.lkk</groupId>
        <version>2.2.0.GA</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>test_system_viewController</artifactId>
    <packaging>jar</packaging>
    <name>test_system_viewController</name>
    <url>http://maven.apache.org</url>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <elasticsearch.version>7.3.1</elasticsearch.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.lkk</groupId>
            <artifactId>test_system_domain</artifactId>
        </dependency>

        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.5</version>
        </dependency>

        <dependency>
            <groupId>org.elasticsearch</groupId>
            <artifactId>elasticsearch</artifactId>
            <version>7.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>transport</artifactId>
            <version>7.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-client</artifactId>
            <version>7.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>elasticsearch-rest-high-level-client</artifactId>
            <version>7.3.1</version>
        </dependency>

<!--        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>-->
    </dependencies>
</project>

aa

加入：

<dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>

試試。 發現..  沒卵用。 難道是 上級  父 pom 引入的？

 

把

        <dependency>
            <groupId>com.lkk</groupId>
            <artifactId>test_system_domain</artifactId>
        </dependency>

放到了 dependencies 的最下面。 就好了！ （ 后面 再復原，竟然重現不了， ）

 

 

哦， 我 覺得應該是 緩存的原因吧！ 可能是 spring-boot-starter-data-elasticsearch 引入的 elasticsearch 是6.4.3， 然后一直 有緩存。。 需要通過某種手段把它清理才行！

 

 

參考：

https://stackoverflow.com/questions/57508456/how-to-correct-the-classpath-of-your-application-so-that-it-contains-a-single