java 导入 org.apache.commons.httpclient.*
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import org.apache.commons.httpclient.*
提问by Jury A
I use a code that imports the following package:
我使用导入以下包的代码：
import org.apache.commons.httpclient.*;
I use eclipse. I went to http://hc.apache.org/downloads.cgi& I downloaded the Jar files, I added them to my project. Still eclipse making an error for this.
我使用日食。我去了http://hc.apache.org/downloads.cgi& 我下载了 Jar 文件，我将它们添加到我的项目中。仍然eclipse为此犯了一个错误。
Exception in thread "main" java.lang.Error: Unresolved compilation problems: HttpClient cannot be resolved to a type
线程“main”中的异常 java.lang.Error：未解决的编译问题：HttpClient 无法解析为类型
What is the problem?
问题是什么？
回答by Thilo
If you are using the latest (4.x) version of these modules, they have been refactored a lot.
For example, the package name is now org.apache.http.client.
Old sample code will have to be modified.
Look at the Javadocsand the Quickstartfor the new project.
如果您使用的是这些模块的最新 (4.x) 版本，它们已经被重构了很多。例如，包名称现在是org.apache.http.client。必须修改旧的示例代码。查看新项目的Javadocs和Quickstart。
The (discouraged) alternative would be to get the old (3.x) version.
（不鼓励的）替代方法是获取旧的 (3.x) 版本。
回答by Reimeus
I would recommend using Mavenfor managing your 3rd party dependencies. It takes care of jar files & all related dependencies.
我建议使用Maven来管理您的 3rd 方依赖项。它负责处理 jar 文件和所有相关的依赖项。
The maven dependency for httpclient is:
httpclient 的 maven 依赖项是：
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.2.1</version>
<scope>compile</scope>
</dependency>
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