import java.io.IOException;import java.util.Properties;//根据我创建的weixin.properties文件获取appid和appsecretpublic class WxConfig {    private static Properties p = null;    public static String getWxProperty(String key) {        if (p == null) {            p = new Properties();            try {                p.load(WxConfig.class.getClassLoader().getResourceAsStream(                        "weixin.properties"));            } catch (IOException e) {                e.printStackTrace();            }        }        return p.getProperty(key);    }}

public static String getAccessToken() {        synchronized (accessToken) {            long ex = (System.currentTimeMillis() - createTime) / 1000;            if (StringUtils.isBlank(accessToken) || ex >= 7000) {                // 刷新                StringBuffer url = new StringBuffer();                url.append("https://api.weixin.qq.com/cgi-bin/token?");                url.append("grant_type=client_credential");                url.append("&appid=" + WxConfig.getWxProperty("appid"));                url.append("&secret=" + WxConfig.getWxProperty("appsecret"));                BufferedReader in = null;                String content = null;                try {                    // 定义HttpClient                    HttpClient client = new DefaultHttpClient();                    // 实例化HTTP方法                    HttpGet get = new HttpGet();                    get.setURI(new URI(url.toString()));                    HttpResponse res = client.execute(get);                    in = new BufferedReader(new InputStreamReader(res                            .getEntity().getContent()));                    StringBuffer sb = new StringBuffer("");                    String line = "";                    while ((line = in.readLine()) != null) {                        sb.append(line);                    }                    in.close();                    content = sb.toString();                } catch (Exception e) {                } finally {                    if (in != null) {                        try {                            in.close();// 最后要关闭BufferedReader                        } catch (Exception e) {                            e.printStackTrace();                        }                    }                }                if (content != null) {                    JSONObject json = JSONObject.fromObject(content);                    accessToken = json.getString("access_token");                    createTime = System.currentTimeMillis();                }            }            // System.out.println("accessToken——" + accessToken);            return accessToken;        }    }

package com.msweixin.common.utils;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import javax.servlet.ServletContextEvent;import javax.servlet.ServletContextListener;public class CreateMenus implements ServletContextListener {    private static final String menus1 = "{\"button\":["            + "{\"type\":\"view\",\"name\":\"百度1\",\"url\":\"http://www.baidu.com\"},"            + "{\"type\":\"view\",\"name\":\"腾讯1\",\"url\":\"http://www.qq.com\"},"            + "{\"name\":\"更多\",\"sub_button\":["            + "{\"type\":\"view\",\"name\":\"1\",\"url\":\"http://www.taobao.com\"}]"            + "}]," + "\"matchrule\":" + "{\"sex\":\"1\"}}";    private static final String menus2 = "{\"button\":["            + "{\"type\":\"view\",\"name\":\"百度2\",\"url\":\"http://www.baidu.com\"},"            + "{\"type\":\"view\",\"name\":\"腾讯2\",\"url\":\"http://www.qq.com\"},"            + "{\"name\":\"更多\",\"sub_button\":["            + "{\"type\":\"view\",\"name\":\"2\",\"url\":\"http://www.taobao.com\"}]"            + "}]," + "\"matchrule\":" + "{\"sex\":\"2\"}}";    public void contextDestroyed(ServletContextEvent event) {    }    public void contextInitialized(ServletContextEvent event) {        System.out.println(CreateMenus.menus1);        try {            String createReturn = createMenusOfWechat(CreateMenus.menus1);            event.getServletContext().log(                    "---create menu1 was " + createReturn + "---");            String createReturn2 = createMenusOfWechat(CreateMenus.menus2);            event.getServletContext().log(                    "---create menu2 was " + createReturn2 + "---");        } catch (IOException e) {            e.printStackTrace();        }    }    /**     * @throws IOException     *             创建Menu     *      * @Title: createMenu     * @Description: 创建Menu     * @param @throws IOException 设定文件     * @return int 返回类型     * @throws     */    public static String createMenusOfWechat(String menu) throws IOException {        // 获得access_token        String access_token = WxUtils.getAccessToken();        String action = "https://api.weixin.qq.com/cgi-bin/menu/addconditional?access_token="                + access_token;        try {            URL url = new URL(action);            HttpURLConnection http = (HttpURLConnection) url.openConnection();            http.setRequestMethod("POST");            http.setRequestProperty("Content-Type",                    "application/x-www-form-urlencoded");            http.setDoOutput(true);            http.setDoInput(true);            System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒            System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒            http.connect();            OutputStream os = http.getOutputStream();            os.write(menu.getBytes("UTF-8"));            os.flush();            os.close();            InputStream is = http.getInputStream();            int size = is.available();            byte[] jsonBytes = new byte[size];            is.read(jsonBytes);            String message = new String(jsonBytes, "UTF-8");            return "返回信息" + message;        } catch (MalformedURLException e) {            e.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        return "createMenu 失败";    }}