package com.test.action;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import
 
 org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

/**
*
 * 依賴 commons-httpclient-3.1.jar commons-codec-1.4.jar 
 * @author tianjun
*
*/
public class PostTest
{

public static void main(String[] args)
 


{


// （1）構造HttpClient的例項


HttpClient httpClient = new HttpClient();



// （2）建立POST方法的例項


PostMethod postMethod = new PostMethod(




"http://localhost:8080/b/test1.do");


// GetMethod getMethod = new


// GetMethod("http://localhost:8080/b/test1.do");



// （3）設定http request頭


List<Header> headers = new ArrayList<Header>();


headers.add(new
 
 Header("tianjun_key","tianjun_value"));


httpClient.getHostConfiguration().getParams().setParameter(




"http.default-headers", headers);



// 使用系統提供的預設的恢復策略


postMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,




new DefaultHttpMethodRetryHandler());


// getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,


// new DefaultHttpMethodRetryHandler());



try


{



// （4）執行postMethod



int statusCode = httpClient.executeMethod(postMethod);



if (statusCode != HttpStatus.SC_OK)



{




System.err.println("Method failed:"






+ postMethod.getStatusLine());



}




// （5）讀取response頭資訊



Header headerResponse = postMethod





.getResponseHeader("response_key");



String headerStr = headerResponse.getValue();



// （6）讀取內容



byte[] responseBody = postMethod.getResponseBody();



// （7） 處理內容



System.out.println(headerStr);



System.out.println(new String(responseBody));


} catch (HttpException e)


{



// 發生致命的異常，可能是協議不對或者返回的內容有問題



System.out.println("Please check your provided http address!");



e.printStackTrace();


} catch (IOException e)


{



e.printStackTrace();


} catch (Exception e)


{



e.printStackTrace();


} finally


{



// 釋放連線



postMethod.releaseConnection();


}

}
}

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