HttpClient使用Post和Get提交参数 中文乱码处理

package httpclient;

import java.io.IOException;
import java.net.URLEncoder;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;

public class HttpClientTest {

    public static void main(String[] args) throws Exception{
        String url = "/webservices/DomesticAirline.asmx/getDomesticAirlinesTime";
        String host = "www.webxml.com.cn";
        String param = "startCity="+URLEncoder.encode("杭州", "utf-8")+"&lastCity=&theDate=&userID=";
        HttpClient httpClient = new HttpClient();
        httpClient.getHostConfiguration().setHost(host, 80, "http");

        HttpMethod method = getMethod(url, param);
        //HttpMethod method = postMethod(url);

        httpClient.executeMethod(method);

        String response = method.getResponseBodyAsString();
        //String response = new String(method.getResponseBodyAsString().getBytes("ISO-8859-1"));
        System.out.println(response);
    }

    private static HttpMethod getMethod(String url,String param) throws IOException{
        GetMethod get = new GetMethod(url+"?"+param);
        get.releaseConnection();
        return get;
    }

    private static HttpMethod postMethod(String url) throws IOException{
        PostMethod post = new PostMethod(url);
        post.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=gbk");
        NameValuePair[] param = { new NameValuePair("startCity","杭州"),
                new NameValuePair("lastCity","沈阳"),
                new NameValuePair("userID",""),
                new NameValuePair("theDate","") } ;
        post.setRequestBody(param);
        post.releaseConnection();
        return post;
    }
}

如果PostMethod提交的是中文字符，需要加上相应的编码格式： 
post.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=gbk");  

如果GetMethod提交的参数有中文字符，需要先转换成utf-8格式： 
URLEncoder.encode("杭州", "utf-8");

原文：http://honda418.iteye.com/blog/337052/