JAVA利用HttpClient进行POST请求(HTTPS)实例

JAVA利用HttpClient进行POST请求(HTTPS)实例

最近，需要对客户的接口做一个包装，然后供自己公司别的系统调用，客户接口是用HTTP URL实现的，我想用HttpClient包进行请求，同时由于请求的URL是HTTPS的，为了避免需要证书，所以用一个类继承DefaultHttpClient类，忽略校验过程。

1.写一个SSLClient类，继承至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;

//用于进行Https请求的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.写一个利用HttpClient发送post请求的类

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进行post请求的工具类

*/

public class HttpClientUtil {

public Stringhttp:// doPost(String url,Map

HttpClient httpClient = null;

HttpPost httpPost = null;

String result = null;

try{

httpClient = new SSLClient();

httpPost = new HttpPost(url);

//设置参数

List list = new ArrayList();

Iterator iterator = map.entrySet().iterator();

while(iterator.hasNext()){

Entry elem = (Entry) 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.调用post请求的测试代码

package com.pcmall.service.sale.miaomore.impl;

import java.util.HashMap;

import java.util.Map;

//对接口进行测试

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 createMap = new HashMap();

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();

}

}

刚开始不是很明白BasicNameValuePair的用法，后来慢慢摸索了一下，发现BasicNameValuePair是存储键值对的类，当添加新的key和value值，它会自动给装换成http的格式，=和&符号，比如https://xxx.xxx.xxx/xxx/xxxx/delivery?delivery_code=DQZZSM2A&timestamp=1479198840000&sign=F209C33FEADE99F93E8970FA0F68D3EB，我们都不用自己进行拼接和匹配了，个人觉得它用起来还是挺方便而且准确度也高，希望可以帮助到大家！

HttpClient httpClient = null;

HttpPost httpPost = null;

String result = null;

try{

httpClient = new SSLClient();

httpPost = new HttpPost(url);

//设置参数

List list = new ArrayList();

Iterator iterator = map.entrySet().iterator();

while(iterator.hasNext()){

Entry elem = (Entry) 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.调用post请求的测试代码

package com.pcmall.service.sale.miaomore.impl;

import java.util.HashMap;

import java.util.Map;

//对接口进行测试

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 createMap = new HashMap();

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();

}

}

刚开始不是很明白BasicNameValuePair的用法，后来慢慢摸索了一下，发现BasicNameValuePair是存储键值对的类，当添加新的key和value值，它会自动给装换成http的格式，=和&符号，比如https://xxx.xxx.xxx/xxx/xxxx/delivery?delivery_code=DQZZSM2A&timestamp=1479198840000&sign=F209C33FEADE99F93E8970FA0F68D3EB，我们都不用自己进行拼接和匹配了，个人觉得它用起来还是挺方便而且准确度也高，希望可以帮助到大家！

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