Caused by: java.lang.ClassNotFoundException: org.apache.http.message.TokenParser 异常的解决办法

女爷i 2021-11-09 06:42 465阅读 0赞

> ### 问题概述 ###

根据要求对Solr服务进行升级，经过全面改操后，启动项目时，单元测试一直报错，测试无法通过，项目启动不起来，异常：“ **Caused by: java.lang.ClassNotFoundException: org.apache.http.message.TokenParser** ”，

部分截图如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70][]

具体异常信息：

java.lang.NoClassDefFoundError: org/apache/http/message/TokenParser
    	at org.apache.http.client.utils.URLEncodedUtils.parse(URLEncodedUtils.java:288)
    	at org.apache.http.client.utils.URLEncodedUtils.parse(URLEncodedUtils.java:249)
    	at org.apache.http.client.utils.URIBuilder.parseQuery(URIBuilder.java:111)
    	at org.apache.http.client.utils.URIBuilder.digestURI(URIBuilder.java:199)
    	at org.apache.http.client.utils.URIBuilder.<init>(URIBuilder.java:91)
    	at org.apache.http.client.utils.URIUtils.rewriteURI(URIUtils.java:206)
    	at org.apache.http.impl.client.DefaultRequestDirector.rewriteRequestURI(DefaultRequestDirector.java:347)
    	at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:471)
    	at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835)
    	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
    	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
    	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
    	at org.apache.solr.client.solrj.impl.HttpSolrServer.executeMethod(HttpSolrServer.java:448)
    	at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:210)
    	at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:206)
    	at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:91)
    	at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:301)
    	at com.huazai.b2c.aiyou.test.solrj.TSolrjClient.queryDocumentById(TSolrjClient.java:232)
    	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:497)
    	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$2.evaluate(ParentRunner.java:268)
    	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
    	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
    	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)
    Caused by: java.lang.ClassNotFoundException: org.apache.http.message.TokenParser
    	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    	... 41 more

> ### 解决办法 ###

经过博主的各种骚操作，最终把这个坑填好了，其天坑过程就不过多的叨叨了，

两种解决办法：

1、将solr版本降到4.x

solr4.x使用的 HttpSolrServer，SolrServer

solr5.x以后升级，改为了 HttpSolrClient，SolrClient

就不贴源码了，点到为止，感兴趣的可以去一探究竟，一般没有必要浪费去看这个的，博主看只是为了解决这个问题。

2、排除httpclient相关的两个依赖包：

<dependency>
    			<groupId>org.apache.solr</groupId>
    			<artifactId>solr-solrj</artifactId>
    			<version>4.10.4</version>
    			<exclusions>
    				<exclusion>
    					<artifactId>httpclient</artifactId>
    					<groupId>org.apache.httpcomponents</groupId>
    				</exclusion>
    				<exclusion>
    					<artifactId>httpcore</artifactId>
    					<groupId>org.apache.httpcomponents</groupId>
    				</exclusion>
    			</exclusions>
    		</dependency>

有人提意见，将solrj升级到5.x以后或最新版本，如果一样是老系统，博主不见升级，牵一发则动全身，会出现各种版本不兼容（因为博主试过，升级后，出现各种不兼容的情况，这个坑填好，又出现另一个坑，让人感觉有永远填不完的坑，经过一顿猛如虎的操作后，几乎到了崩溃边缘，然后果断回滚代码，关掉IDE，长长的深吸了口气，终于解决了，结束！！！）

解决问题后，再次测试，通了：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70 1][]

--------------------

好了，关于 Caused by: java.lang.ClassNotFoundException: org.apache.http.message.TokenParser 异常的解决办法 就写到这儿了，如果还有什么疑问或遇到什么问题欢迎扫码提问，也可以给我留言哦，我会一一详细的解答的。   
歇后语：“ 共同学习，共同进步 ”，也希望大家多多关注CSND的IT社区。

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<table> 
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   <td>作&nbsp; &nbsp; &nbsp; &nbsp;者：</td> 
   <td>华 &nbsp; &nbsp;仔</td> 
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   <td>联系作者：</td> 
   <td>who.seek.me@java98k.vip</td> 
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   <td>原&nbsp; &nbsp; &nbsp; &nbsp; 文：</td> 
   <td><a href="https://blog.csdn.net/Hello_World_QWP/article/details/98340187" rel="nofollow">https://blog.csdn.net/Hello_World_QWP/article/details/98340187</a></td> 
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hlbGxvX1dvcmxkX1FXUA_size_16_color_FFFFFF_t_70 1]: /images/20211109/71941d87101f413c8c3a36764dc6c7f0.png