微信公衆平臺開發學習記錄(2)————自定義菜單創建

公衆號調用各接口時都需使用access_token，access_token是公衆號的全局唯一票據，獲取access_token接口的調用頻率限制爲2000次/天，如果每次發送客服消息、獲取用戶信息、羣發消息之前都要先調用獲取access_token接口得到接口訪問憑證，這顯然是不合理的，一方面會更耗時（多了一次接口調用操作），另一方面2000次/天的調用限制恐怕也不夠用。因此，在實際應用中，我們需要將獲取到的access_token存儲起來，然後定期調用access_token接口更新它，以保證隨時取出的access_token都是有效的。

public static void main(String[] args) throws Exception {

		// 獲取access token
		String str = "";
		str = HttpUtil.http("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=****&secret=******");
		System.out.println(str);
		
		// 獲取微信服務器IP地址
		// 如果公衆號基於消息接收安全上的考慮，需要獲知微信服務器的IP地址列表，以便識別出哪些消息是微信官方推送給你的，哪些消息可能是他人僞造的，可以通過該接口獲得微信服務器IP地址列表。
		String str2 = HttpUtil
				.http("https://api.weixin.qq.com/cgi-bin/getcallbackip?access_token=<span style="font-family: Arial, Helvetica, sans-serif;">access_token</span>");
		System.out.println(str2);
	}

自定義菜單創建、刪除、查詢、查詢配置接口如下:

	public static void main(String[] args) throws Exception {

		// 自定義菜單刪除接口
		String str5 = HttpUtil
				.http("https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=drnjhjklW1xANamBWNni5YrioFpgKrmok713WqRA3Ps9711fj5haRTUTLLAqbHZFmq7RooJoefzzDL1CdmSKBGeC7Qav_PKzwwaIRjHBxTMSkaKSxOQm8v6uaUZOspv5RVBiAAAWAG");
		System.out.println(str5);

		// 自定義菜單創建接口
		String menuStr = "{\"button\":[{\"type\":\"click\",\"name\":\"今日歌曲\",\"key\":\"V1001_TODAY_MUSIC\"},"
				+ "{\"name\":\"菜單\", \"sub_button\":[{	\"type\":\"view\", \"name\":\"搜索\", \"url\":\"http://www.soso.com/\"},{\"type\":\"location_select\", \"name\":\"發送位置\",\"key\":\"rselfmenu_2_0\"},{\"type\":\"click\", \"name\":\"贊一下我們\",\"key\":\"V1001_GOOD\"}]},"
				+ " { \"name\": \"掃碼\",\"sub_button\": [{\"type\": \"scancode_waitmsg\",\"name\": \"掃碼帶提示\",\"key\": \"rselfmenu_0_0\", \"sub_button\": [] }, {\"type\": \"scancode_push\", \"name\": \"掃碼推事件\", \"key\": \"rselfmenu_0_1\",\"sub_button\": []} ] }]}";
		String str3 = HttpUtil
				.httpsPostMethod(
						"https://api.weixin.qq.com/cgi-bin/menu/create?access_token=drnjhjklW1xANamBWNni5YrioFpgKrmok713WqRA3Ps9711fj5haRTUTLLAqbHZFmq7RooJoefzzDL1CdmSKBGeC7Qav_PKzwwaIRjHBxTMSkaKSxOQm8v6uaUZOspv5RVBiAAAWAG",
						menuStr);
		System.out.println(str3);

		// 自定義菜單查詢接口
		String str4 = HttpUtil
				.http("https://api.weixin.qq.com/cgi-bin/menu/get?access_token=drnjhjklW1xANamBWNni5YrioFpgKrmok713WqRA3Ps9711fj5haRTUTLLAqbHZFmq7RooJoefzzDL1CdmSKBGeC7Qav_PKzwwaIRjHBxTMSkaKSxOQm8v6uaUZOspv5RVBiAAAWAG");
		System.out.println(str4);

		// 獲取自定義菜單配置接口
		String str6 = HttpUtil
				.http("https://api.weixin.qq.com/cgi-bin/get_current_selfmenu_info?access_token=drnjhjklW1xANamBWNni5YrioFpgKrmok713WqRA3Ps9711fj5haRTUTLLAqbHZFmq7RooJoefzzDL1CdmSKBGeC7Qav_PKzwwaIRjHBxTMSkaKSxOQm8v6uaUZOspv5RVBiAAAWAG");
		System.out.println(str6);

	}

HttpUtil:

package com.qs.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

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 javax.net.ssl.X509TrustManager;

import net.sf.json.JSONObject;

public class HttpUtil {
	
	
	public static String http(String url) throws Exception {
		URL u = null;
		HttpURLConnection con = null;
		// 構建請求參數
		StringBuffer sb = new StringBuffer();
		// 嘗試發送請求
		try {
			u = new URL(url);
			con = (HttpURLConnection) u.openConnection();
			con.setRequestMethod("POST");
			con.setDoOutput(true);
			con.setDoInput(true);
			con.setUseCaches(false);
			con.setRequestProperty("Content-Type",
							"application/x-www-form-urlencoded; text/html; charset=utf-8");
			OutputStreamWriter osw = new OutputStreamWriter(con
					.getOutputStream(), "UTF-8");
			osw.write(sb.toString());
			osw.flush();
			osw.close();
		} catch (Exception e) {
			throw e;
		} finally {
			if (con != null) {
				con.disconnect();
			}
		}
		// 讀取返回內容
		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) {
			throw e;
		}
		return buffer.toString();
	}


	/**
	 * Https POST
	 * 
	 * @throws
	 **/
	public static String httpsPostMethod(String postURL, String postData) {
		OutputStreamWriter out = null;
		HttpsURLConnection conn = null;
		InputStream is = null;
		StringBuffer buffer = new StringBuffer();
		try {
			SSLContext sc = SSLContext.getInstance("SSL");
			sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },
					new java.security.SecureRandom());
			// 更換服務如何獲取憑證
			URL console = new URL(postURL);
			conn = (HttpsURLConnection) console.openConnection();
			conn.setSSLSocketFactory(sc.getSocketFactory());
			conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
			conn.setDoOutput(true);

			out = new OutputStreamWriter(conn.getOutputStream(), "utf-8");
			out.write(postData);
			out.flush();
			conn.connect();

			// 讀取返回內容
			is = conn.getInputStream();

			BufferedReader br = new BufferedReader(new InputStreamReader(is,
					"UTF-8"));
			String temp;
			while ((temp = br.readLine()) != null) {
				buffer.append(temp);
				buffer.append("\n");
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (conn != null) {
				try {
					out.close();
					is.close();
					conn.disconnect();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return buffer.toString();
	}

	// https證書驗證
	private static class TrustAnyTrustManager implements X509TrustManager {
		public void checkClientTrusted(X509Certificate[] chain, String authType)
				throws CertificateException {
		}

		public void checkServerTrusted(X509Certificate[] chain, String authType)
				throws CertificateException {
		}

		public X509Certificate[] getAcceptedIssuers() {
			return new X509Certificate[] {};
		}
	}

	private static class TrustAnyHostnameVerifier implements HostnameVerifier {
		public boolean verify(String hostname, SSLSession session) {
			return true;
		}
	}

	
}