HttpClient使用Post和Get提交参数

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");