Question

我收到下一个错误：

线程中的异常＆＃34; main＆＃34; java.lang.NoClassDefFoundError： org / apache / commons / logging / LogFactory at org.apache.http.conn.ssl.DefaultHostnameVerifier。（DefaultHostnameVerifier.java:82）在 org.apache.http.impl.client.HttpClientBuilder.build（HttpClientBuilder.java:955）在Main.main（Main.java:87）引起：抛出java.lang.ClassNotFoundException： org.apache.commons.logging.LogFactory at java.net.URLClassLoader.findClass（URLClassLoader.java:381）at java.lang.ClassLoader.loadClass（ClassLoader.java:424）at sun.misc.Launcher $ AppClassLoader.loadClass（Launcher.java:338）at at java.lang.ClassLoader.loadClass（ClassLoader.java:357）... 3更多

我使用intellij idea并导入了2个libs：httpclient-4.5.5.jar和httpcore-4.4.9.jar

我班上的所有馆藏：

import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;

代码示例：

    String urlToSendRequest = Constants.HOST + Constants.URL;
    String targetDomain = Constants.DOMAIN;

    HttpClient httpClient = HttpClientBuilder.create().build();
    HttpHost targetHost = new HttpHost(targetDomain, 80, "http");

    HttpPost httpPost = new HttpPost(urlToSendRequest);

    httpPost.addHeader("SENDCODE", "UTF-8");
    //...

    StringEntity entity = new StringEntity(Constants.MSG, "UTF-8");
    entity.setContentType("application/xml");
    httpPost.setEntity(entity);

    HttpResponse response = httpClient.execute(httpPost);

我几乎可以肯定问题出在库导入上，但我不确定并且不知道如何修复它。

Answer 1

请下载commons-logging jar文件并设置路径。

http://commons.apache.org/proper/commons-logging/download_logging.cgi

Answer 2

请在项目中包含commons logging jar。可以从here

下载

同样来自Maven repository

Answer 3

好像你缺少了公共 - 记录库。

错误：NoClassDefFoundError：org / apache / commons / logging / LogFactory

3 个答案: