java.lang.ClassNotFoundException: org.apache.http.client.HttpClient的解决方式

原因：缺少依赖

解决方式：解决之前

<dependency>
      <groupId>org.apache.solr</groupId>
      <artifactId>solr-solrj</artifactId>
      <version>5.3.1</version>
    </dependency>

解决之后

<dependency>
      <groupId>org.apache.solr</groupId>
      <artifactId>solr-solrj</artifactId>
      <version>5.3.1</version>
    </dependency>
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpclient</artifactId>
      <version>4.5.6</version>
    </dependency>
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpmime</artifactId>
      <version>4.5.6</version>
    </dependency>
    <dependency>```