微信客服消息提醒：

public static void Test(String openid) throws Exception{

String token = getWeiXinAccessToken.getToken();

String strJson = "{"touser" :""+openid+"",";

strJson += ""msgtype":"text",";

strJson += ""text":{";

strJson += ""content":"这里写你要提示的信息！"";

strJson += "}}";

String url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?&body=0&access_token=" + token;

post(url, strJson);

}

public static void post(String url, String json){

DefaultHttpClient client = new DefaultHttpClient();

HttpPost post = new HttpPost(url);

try{

StringEntity s = new StringEntity(json.toString(),"UTF-8");

//s.setContentEncoding("UTF-8");

s.setContentType("application/json");

post.setEntity(s);

HttpResponse res = client.execute(post);

if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {

HttpEntity entity = res.getEntity();

System.out.println(EntityUtils.toString(entity, "utf-8"));

}

}catch (Exception e) {

throw new RuntimeException(e);

}

}

public class getWeiXinAccessToken {

public static String getToken() {

String getResponse="";

String appid= "公众号AppID";

String secret= "公众号secret";

try{

String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="+appid+"&secret="+secret;

HttpClient httpClient = new HttpClient();

GetMethod getMethod = new GetMethod(url);

int execute = httpClient.executeMethod(getMethod);

System.out.println("execute:"+execute);

getResponse = getMethod.getResponseBodyAsString();

} catch (IOException e){

e.printStackTrace();

}

System.out.println(getResponse);

JSONObject json=JSONObject.fromObject(getResponse);

return json.getString("access_token");

}

}