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");