Java中Https发送POST请求[亲测可用]
1、直接建一个工具类放入即可
/** * 发送https请求共用体 */ public static JSONObject sendPost(String url,String parame,Map<String,Object> pmap) throws IOException, KeyManagementException, NoSuchAlgorithmException, NoSuchProviderException{ // 请求结果 JSONObject json = new JSONObject(); PrintWriter out = null; BufferedReader in = null; String result = ""; URL realUrl; HttpsURLConnection conn; String method = "POST"; //查询地址 String queryString = url; //请求参数获取 String postpar = ""; //字符串请求参数 if(parame!=null){ postpar = parame; } // map格式的请求参数 if(pmap!=null){ StringBuffer mstr = new StringBuffer(); for(String str:pmap.keySet()){ String val = (String) pmap.get(str); try { val=URLEncoder.encode(val,"UTF-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } mstr.append(str+"="+val+"&"); } // 最终参数 postpar = mstr.toString(); int lasts=postpar.lastIndexOf("&"); postpar=postpar.substring(0, lasts); } if(method.toUpperCase().equals("GET")){ queryString+="?"+postpar; } SSLSocketFactory ssf= HttpsClientUtils.getSSFactory(); try { realUrl= new URL(queryString); conn = (HttpsURLConnection)realUrl.openConnection(); conn.setSSLSocketFactory(ssf); conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); conn.setRequestProperty("accept", "*/*"); conn.setRequestProperty("connection", "Keep-Alive"); conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); if(method.toUpperCase().equals("POST")){ conn.setDoOutput(true); conn.setDoInput(true); conn.setUseCaches(false); out = new PrintWriter(conn.getOutputStream()); out.print(postpar); out.flush(); }else{ conn.connect(); } in = new BufferedReader( new InputStreamReader(conn.getInputStream(),"utf-8")); String line; while ((line = in.readLine()) != null) { result += line; } json = JSONObject.fromObject(result); }finally { try { if (out != null) { out.close(); } if (in != null) { in.close(); } } catch (IOException ex) { ex.printStackTrace(); } } return json; }
2、可能需要的包
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.UnsupportedEncodingException; import java.net.URI; import java.net.URL; import java.net.URLEncoder; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.NoSuchProviderException; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.Random; import java.util.Set; import java.util.TreeMap; import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLSocketFactory; import net.sf.json.JSONObject; import org.apache.commons.codec.digest.DigestUtils; import org.apache.http.NameValuePair; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.client.utils.URIBuilder; import org.apache.http.entity.ContentType; import org.apache.http.entity.StringEntity; 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;
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