java httppost https_JAVA利用HttpClient进行POST请求（HTTPS）
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));
}
}
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 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 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
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 createMap = new HashMap();
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
项目实际应用：
package com.xxx.ctemm.util;
import com.alibaba.fastjson.JSONObject;
import com.google.gson.Gson;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Created by xxxon 2017/8/14.
*/
public class HttpClientUtil {
private static final Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);
/**
* post请求
* @param url url地址
* @return
*/
public static JSONObject doPost(String url, Map params){
// 创建默认的httpClient实例.
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = null;
CloseableHttpResponse response = null;
JSONObject jsonResult = null;
try{
List pairs = null;
if (params != null && !params.isEmpty()) {
pairs = new ArrayList(params.size());
for (Map.Entry entry : params.entrySet()) {
pairs.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
}
// 创建httppost
httpPost = new HttpPost(url);
if (pairs != null && !pairs.isEmpty()) {
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(pairs, Charset.forName("UTF-8"));
httpPost.setEntity(entity);
}
//4.3版本超时设置,设置请求和传输超时时间
RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(30000).setConnectTimeout(30000).build();
httpPost.setConfig(requestConfig);
response = httpClient.execute(httpPost);
/**请求发送成功，并得到响应**/
if (response.getStatusLine().getStatusCode() == 200) {
logger.error("POST请求发送成功，并得到响应");
String str;
try {
/**读取服务器返回过来的json字符串数据**/
HttpEntity httpEntity = response.getEntity();
str = EntityUtils.toString(httpEntity);
Gson gson = new Gson();
logger.info("URL:["+url + "];Params:[" + gson.toJson(params) +"];Response:[" + str + "].");
/**把json字符串转换成json对象**/
jsonResult = JSONObject.parseObject(str);
} catch (Exception e) {
logger.error("json字符串转换成json对象异常:" + url, e);
return null;
}
}else{
logger.error("POST请求异常，异常码是："+ response.getStatusLine().getStatusCode());
return null;
}
} catch (IOException e) {
logger.error("post请求提交失败:" + url, e);
return null;
}finally{
try {
if (null != response) {
response.close();
httpClient.close();
}
} catch (IOException e) {
logger.error("关闭资源异常",e);
}
}
return jsonResult;
}
}