android使用HTTPS请求JSON（二）示例代码

思路：

1）写一个类，封装HTTPS操作。

2）实现一个同步函数，在主线程中直接用。

3）实现一个异步函数，可以在线程中用。

4）写一个提示窗口函数，用于提示消息，土办法调试。

 

HttpPost.java

package com.example.test1;

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("GET");
			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 e;
			//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) {