java https或http请求json数据

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;

import net.sf.json.JSONObject;

import java.security.cert.X509Certificate;  

import javax.net.ssl.X509TrustManager;  

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HttpPost {
	
	private static Logger logger = LoggerFactory.getLogger(HttpPost.class);
	
	public static String http(String url, Map<String, String> reqMap) throws Exception {
		HttpURLConnection con = null;
		JSONObject json = JSONObject.fromObject(reqMap);
		String sendString = json.toString();
		//System.out.println("发送给信息:" + sendString);
		// 尝试发送请求
		try {
			URL u = new URL(url);
			con = (HttpURLConnection) u.openConnection();
			con.setRequestMethod("POST");
			con.setDoOutput(true);
			con.setDoInput(true);
			con.setUseCaches(false);
			// con.setConnectTimeout(300*1000);
			// con.setReadTimeout(300*1000);
			con.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
			OutputStreamWriter osw = new OutputStreamWriter(con.getOutputStream(), "UTF-8");
			osw.write(sendString);
			osw.flush();
			osw.close();
		} catch (Exception e) {
			e.printStackTrace();
			throw new Exception("与服务器连接发生错误:"+e.getMessage());
		} finally {
			if (con != null) {
				con.disconnect();
			}
		}

		// 读取返回内容
		StringBuffer buffer = new StringBuffer();
		try {
			BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8"));
			String temp;
			while ((temp = br.readLine()) != null) {
				buffer.append(temp);
			}
		} catch (Exception e) {
			e.printStackTrace();
			throw new Exception("从服务器获取数据失败:"+e.getMessage());
		}
		return buffer.toString();
	}

	private final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
		public boolean verify(String hostname, SSLSession session) {
			return true;
		}
	};

	private static void trustAllHosts() {
		// Create a trust manager that does not validate certificate chains
		TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {
			public java.security.cert.X509Certificate[] getAcceptedIssuers() {
				return new java.security.cert.X509Certificate[]{};
			}
			public void checkClientTrusted(X509Certificate[] chain, String authType) {
			}
			public void checkServerTrusted(X509Certificate[] chain, String authType) {
			}
		}};
		// Install the all-trusting trust manager
		try {
			SSLContext sc = SSLContext.getInstance("TLS");
			sc.init(null, trustAllCerts, new java.security.SecureRandom());
			HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static String https(String url, Map<String, String> params) throws Exception{
		// 构建请求参数
		String result = "";
		PrintWriter out = null;
		BufferedReader in = null;

		JSONObject json = JSONObject.fromObject(params);
		String sendString = json.toString();
		logger.error("*****发送给信息*****:\t" + sendString);
		try {
			trustAllHosts();
			URL url2 = new URL(url);
			HttpsURLConnection urlCon = (HttpsURLConnection) url2.openConnection();
			urlCon.setHostnameVerifier(DO_NOT_VERIFY);
			urlCon.setDoOutput(true);
			urlCon.setDoInput(true);
			urlCon.setRequestMethod("POST");
			urlCon.setRequestProperty("Content-type", "application/json;charset=UTF-8");
			urlCon.setConnectTimeout(5*1000);//设置超时时间
			urlCon.setReadTimeout(5*1000); 
			// 发送POST请求必须设置如下两行
			urlCon.setDoOutput(true);
			urlCon.setDoInput(true);
			// 获取URLConnection对象对应的输出流
			OutputStream os = urlCon.getOutputStream(); 
			
			//参数是键值队  , 不以"?"开始 
			os.write(sendString.getBytes()); 
			os.flush();
			// 发送请求参数
			// 定义BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(urlCon.getInputStream(),"UTF-8"));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		} catch (Exception e) {
			e.printStackTrace();
			//https(url,params);
			return null;
		} finally {// 使用finally块来关闭输出流、输入流
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
			//urlCon.disconnect();
		}
		logger.error("*****接受的数据为*****:\t" + result);
		return result;
	}
	


}

 

依赖jar

commons-beanutils-1.7.0.jar
commons-collections-3.2.jar
commons-lang-2.3.jar
commons-logging-1.1.1.jar
ezmorph-1.0.4.jar
fastjson-1.2.28.jar
json-lib-2.2.1-jdk15.jar