Cannot instantiate the type HttpClient解决方案

Cannot instantiate the type HttpClient
在CLASS PATH中添加了HttpClient需要的三个jar，并没有用，import依然报错
后来通过工程属性导入之后，import不报错了，但是
依然提示Cannot instantiate the type HttpClient

Java code

import org.apache.http.client.*;import org.apache.http.client.methods.*;import org.apache.http.client.params.*;import java.io.*;public class HttpTwoA {      private static String url = "http://www.apache.org/";      public static void main(String[] args) {        // Create an instance of HttpClient.        HttpClient client = new HttpClient();        // Create a method instance.        GetMethod method = new GetMethod(url);}