HttpClient版本3.1错误

Question

我试图传递一个XML文件作为Http POST请求。当我在一个Linux框上使用CURL测试它时，网络服务运行良好，XML格式良好。我试图编写一个Java实用程序来做同样的事情。我在Apache Commons HttpClient库3.1版本中找到了一个示例，下面是我的代码：

进口：

import java.io.File;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.FileRequestEntity;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.RequestEntity;

代码：

String strURL = "https://localhost/scoring";
String strXMLFilename = "C:\\Users\\Test.xml";
File input = new File(strXMLFilename);
PostMethod post = new PostMethod(strURL);
RequestEntity entity = new FileRequestEntity(input, "text/xml; charset=ISO--");
post.setRequestEntity(entity);
Get HTTP client
HttpClient httpclient = new HttpClient();
try 
{
   int result = httpclient.executeMethod(post);
   System.out.println("Response status code: " + result);
   System.out.println("Response body: ");
   System.out.println(post.getResponseBodyAsString());
} 
finally 
{
post.releaseConnection();
}

我得到一个错误：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.commons.httpclient.HttpMethodBase.<clinit>(HttpMethodBase.java:104)
at Test.main(Test.java:40)

更新

增加了Commons-logging-1.2。罐子

仍然会出现错误：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/codec/DecoderException
at org.apache.commons.httpclient.HttpMethodBase.<init>(HttpMethodBase.java:220)
at org.apache.commons.httpclient.methods.ExpectContinueMethod.<init>(ExpectContinueMethod.java:93)
at org.apache.commons.httpclient.methods.EntityEnclosingMethod.<init>(EntityEnclosingMethod.java:119)
at org.apache.commons.httpclient.methods.PostMethod.<init>(PostMethod.java:106)
at Test.main(Test.java:40)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.codec.DecoderException

这句话的意思是：

PostMethod post = new PostMethod(strURL);

怎么了？请帮忙。

Answer 1

我通过导入以下依赖项解决了这个问题

    <dependency>
        <groupId>commons-httpclient</groupId>
        <artifactId>commons-httpclient</artifactId>
        <version>3.1</version>
        <exclusions>
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>*</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

Answer 2

您只需要将Apache Commons日志jar添加到您的类路径（如果您使用的是IDE，那么您的项目库）中，就可以从这里下载它。

Answer 3

您错过了类路径中的apachecommons-logging.jar。下载它并将其添加到类路径中。

更新：现在你需要commons-codec.jar下载并添加它。