JAVA利用HttpClient进行POST请求(HTTPS)
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目前,要为另一个项目提供接口,接口是用HTTP URL实现的,最初的想法是另一个项目用JQuery post进行请求。
但是,很可能另一个项目是部署在别的机器上,那么就存在跨域问题,而JQuery的post请求是不允许跨域的。
这时,就只能够用HttpClient包进行请求了,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
- 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));
- }
- }
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HttpClientpublic 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
- 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 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);
- //设置参数
- 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;
- }
- }
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 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); //设置参数 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.调用post请求的测试代码
- import java.util.HashMap;
- import java.util.Map;
- //对接口进行测试
- public class TestMain {
- private String url = “https://192.168.1.101/”;
- private String charset = “utf-8”;
- private HttpClientUtil httpClientUtil = null;
- public TestMain(){
- httpClientUtil = new HttpClientUtil();
- }
- public void test(){
- String httpOrgCreateTest = url + ”httpOrg/create”;
- Map<String,String> createMap = new HashMap<String,String>();
- createMap.put(”authuser”,“*****”);
- createMap.put(”authpass”,“*****”);
- createMap.put(”orgkey”,“****”);
- createMap.put(”orgname”,“****”);
- String httpOrgCreateTestRtn = httpClientUtil.doPost(httpOrgCreateTest,createMap,charset);
- System.out.println(”result:”+httpOrgCreateTestRtn);
- }
- public static void main(String[] args){
- TestMain main = new TestMain();
- main.test();
- }
- }
import java.util.HashMap;import java.util.Map;//对接口进行测试public class TestMain { private String url = "https://192.168.1.101/"; private String charset = "utf-8"; private HttpClientUtil httpClientUtil = null; public TestMain(){ httpClientUtil = new HttpClientUtil(); } public void test(){ String httpOrgCreateTest = url + "httpOrg/create"; Map<String,String> createMap = new HashMap<String,String>(); createMap.put("authuser","*****"); createMap.put("authpass","*****"); createMap.put("orgkey","****"); createMap.put("orgname","****"); String httpOrgCreateTestRtn = httpClientUtil.doPost(httpOrgCreateTest,createMap,charset); System.out.println("result:"+httpOrgCreateTestRtn); } public static void main(String[] args){ TestMain main = new TestMain(); main.test(); }}
httpClient4.2的jar包下载路径:http://download.csdn.net/detail/hqmryang/4582440#comment
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