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JAVA利用HttpClient進(jìn)行POST請求(HTTPS)實例

更新時間：2016年11月24日 12:27:45 投稿：jingxian

下面小編就為大家?guī)硪黄狫AVA利用HttpClient進(jìn)行POST請求(HTTPS)實例。小編覺得挺不錯的，現(xiàn)在就分享給大家，也給大家做個參考。一起小編過來看看吧

最近，需要對客戶的接口做一個包裝，然后供自己公司別的系統(tǒng)調(diào)用，客戶接口是用HTTP URL實現(xiàn)的，我想用HttpClient包進(jìn)行請求，同時由于請求的URL是HTTPS的，為了避免需要證書，所以用一個類繼承DefaultHttpClient類，忽略校驗過程。

1.寫一個SSLClient類，繼承至HttpClient

package com.pcmall.service.sale.miaomore.impl; 
 
import java.security.cert.CertificateException;  
import java.security.cert.X509Certificate;  
import javax.net.ssl.SSLContext;  
import javax.net.ssl.TrustManager;  
import javax.net.ssl.X509TrustManager;  
import org.apache.http.conn.ClientConnectionManager;  
import org.apache.http.conn.scheme.Scheme;  
import org.apache.http.conn.scheme.SchemeRegistry;  
import org.apache.http.conn.ssl.SSLSocketFactory;  
import org.apache.http.impl.client.DefaultHttpClient;  
//用于進(jìn)行Https請求的HttpClient  
public class SSLClient extends DefaultHttpClient{  
  public SSLClient() throws Exception{  
    super();  
    SSLContext ctx = SSLContext.getInstance("TLS");  
    X509TrustManager tm = new X509TrustManager() {  
        @Override  
        public void checkClientTrusted(X509Certificate[] chain,  
            String authType) throws CertificateException {  
        }  
        @Override  
        public void checkServerTrusted(X509Certificate[] chain,  
            String authType) throws CertificateException {  
        }  
        @Override  
        public X509Certificate[] getAcceptedIssuers() {  
          return null;  
        }  
    };  
    ctx.init(null, new TrustManager[]{tm}, null);  
    SSLSocketFactory ssf = new SSLSocketFactory(ctx,SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);  
    ClientConnectionManager ccm = this.getConnectionManager();  
    SchemeRegistry sr = ccm.getSchemeRegistry();  
    sr.register(new Scheme("https", 443, ssf));  
  }  
}

2.寫一個利用HttpClient發(fā)送post請求的類

package com.pcmall.service.sale.miaomore.impl; 
 
import java.util.ArrayList;  
import java.util.Iterator;  
import java.util.List;  
import java.util.Map;  
import java.util.Map.Entry;  
import org.apache.http.HttpEntity;  
import org.apache.http.HttpResponse;  
import org.apache.http.NameValuePair;  
import org.apache.http.client.HttpClient;  
import org.apache.http.client.entity.UrlEncodedFormEntity;  
import org.apache.http.client.methods.HttpPost;  
import org.apache.http.message.BasicNameValuePair;  
import org.apache.http.util.EntityUtils;  
/* 
 * 利用HttpClient進(jìn)行post請求的工具類 
 */  
public class HttpClientUtil {  
  public String doPost(String url,Map<String,String> map,String charset){  
    HttpClient httpClient = null;  
    HttpPost httpPost = null;  
    String result = null;  
    try{  
      httpClient = new SSLClient();  
      httpPost = new HttpPost(url);  
      //設(shè)置參數(shù)  
      List<NameValuePair> list = new ArrayList<NameValuePair>();  
      Iterator iterator = map.entrySet().iterator();  
      while(iterator.hasNext()){  
        Entry<String,String> elem = (Entry<String, String>) iterator.next();  
        list.add(new BasicNameValuePair(elem.getKey(),elem.getValue()));  
      }  
      if(list.size() > 0){  
        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list,charset);  
        httpPost.setEntity(entity);  
      }  
      HttpResponse response = httpClient.execute(httpPost);  
      if(response != null){  
        HttpEntity resEntity = response.getEntity();  
        if(resEntity != null){  
          result = EntityUtils.toString(resEntity,charset);  
        }  
      }  
    }catch(Exception ex){  
      ex.printStackTrace();  
    }  
    return result;  
  }  
}

3.調(diào)用post請求的測試代碼

package com.pcmall.service.sale.miaomore.impl; 
 
import java.util.HashMap;  
import java.util.Map;  
//對接口進(jìn)行測試  
public class TestMain {  
  private String url = "https://xxx.xxx.xxx/";  
  private String charset = "utf-8";  
  private HttpClientUtil httpClientUtil = null;  
    
  public TestMain(){  
    httpClientUtil = new HttpClientUtil();  
  }  
    
  public void test(){  
    String httpOrgCreateTest = url + "xxx/xxx/delivery";  
    Map<String,String> createMap = new HashMap<String,String>();  
    createMap.put("delivery_code","1D1QZ222Z22SM21A");  
    createMap.put("timestamp","1479198840000");  
    createMap.put("sign","F2109C333F3EADE929F932E89703FA0F683D43EB");  
    String httpOrgCreateTestRtn = httpClientUtil.doPost(httpOrgCreateTest,createMap,charset);  
    System.out.println("result:"+httpOrgCreateTestRtn);  
  }  
    
  public static void main(String[] args){  
    TestMain main = new TestMain();  
    main.test();  
  }  
}

剛開始不是很明白BasicNameValuePair的用法，后來慢慢摸索了一下，發(fā)現(xiàn)BasicNameValuePair是存儲鍵值對的類，當(dāng)添加新的key和value值，它會自動給裝換成http的格式，=和&符號，比如https://xxx.xxx.xxx/xxx/xxxx/delivery?delivery_code=DQZZSM2A&timestamp=1479198840000&sign=F209C33FEADE99F93E8970FA0F68D3EB，我們都不用自己進(jìn)行拼接和匹配了，個人覺得它用起來還是挺方便而且準(zhǔn)確度也高，希望可以幫助到大家！

以上就是小編為大家?guī)淼腏AVA利用HttpClient進(jìn)行POST請求(HTTPS)實例全部內(nèi)容了，希望大家多多支持腳本之家~

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