java版，微信公众平台新手入门第三节

回复

马上注册，结交更多好友，享用更多功能，让你轻松玩转社区。

您需要登录才可以下载或查看，没有帐号？立即注册

x

java版微信公众平台开发

access_token 获取

微信自定义菜单

提交微信自定义菜单

查询微信自定义菜单

删除微信自定义菜单

access_token 获取

/**
* 公众平台通用接口工具类
*/
public class WeixinUtil {
private static Logger log = LoggerFactory.getLogger(WeixinUtil.class);
// 获取access_token的接口地址（GET）限200（次/天）
public final static String access_token_url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
/**
* 获取access_token
* @param appid 凭证
* @param appsecret 密钥
* @return
*/
public static AccessToken getAccessToken(String appid, Stringappsecret) {
AccessToken accessToken = null;
String requestUrl = access_token_url.replace("APPID", appid).replace("APPSECRET", appsecret);
JSONObject jsonObject = httpRequest(requestUrl, "GET", null);
// 如果请求成功
if (null != jsonObject) {
try {
accessToken = new AccessToken();
accessToken.setToken(jsonObject.getString("access_token"));
accessToken.setExpiresIn(jsonObject.getInt("expires_in"));
} catch (JSONException e) {
accessToken = null;
// 获取token失败
log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
}
}
return accessToken;
}
/**
* 发起https请求并获取结果
* @param requestUrl 请求地址
* @param requestMethod 请求方式（GET、POST）
* @param outputStr 提交的数据
* @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
*/
public static JSONObject httpRequest(String requestUrl, StringrequestMethod, String outputStr) {
JSONObject jsonObject = null;
StringBuffer buffer = new StringBuffer();
try {
// 创建SSLContext对象，并使用我们指定的信任管理器初始化
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 从上述SSLContext对象中得到SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL url = new URL(requestUrl);
HttpsURLConnection httpUrlConn = (HttpsURLConnection)url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);
httpUrlConn.setDoOutput(true);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
// 设置请求方式（GET/POST）
httpUrlConn.setRequestMethod(requestMethod);
if ("GET".equalsIgnoreCase(requestMethod))
httpUrlConn.connect();
// 当有数据需要提交时
if (null != outputStr) {
OutputStream outputStream = httpUrlConn.getOutputStream();
// 注意编码格式，防止中文乱码
outputStream.write(outputStr.getBytes("UTF-8"));
outputStream.close();
}
// 将返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = newInputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
jsonObject = JSONObject.fromObject(buffer.toString());
} catch (ConnectException ce) {
log.error("Weixinserver connection timed out.");
} catch (Exception e) {
log.error("httpsrequest error:{}", e);
}
return jsonObject;
}
}
/**
* 创建菜单
*/
public static String createMenu(String params, String accessToken) throws Exception {
HttpPost httpost = HttpClientConnectionManager.getPostMethod("https://api.weixin.qq.com/cgi-bin/menu/create?access_token=" + accessToken);
httpost.setEntity(new StringEntity(params, "UTF-8"));
HttpResponse response = httpclient.execute(httpost);
String jsonStr = EntityUtils.toString(response.getEntity(),"utf-8");
JSONObject object = JSON.parseObject(jsonStr);
return object.getString("errcode");
}
/**
* 查询菜单
*/
public static String getMenuInfo(String accessToken) throws Exception {
HttpGet get = HttpClientConnectionManager.getGetMethod("https://api.weixin.qq.com/cgi-bin/menu/get?access_token=" + accessToken);
HttpResponse response = httpclient.execute(get);
String jsonStr = EntityUtils.toString(response.getEntity(),"utf-8");
return jsonStr;
}
/**
* 删除自定义菜单
*/
public static String getAccessToken(String accessToken) throws Exception {
HttpGet get = HttpClientConnectionManager.getGetMethod("https://api.weixin.qq.com/cgi-bin/menu/delete?access_token=" + accessToken);
HttpResponse response = httpclient.execute(get);
String jsonStr = EntityUtils.toString(response.getEntity(),"utf-8");
JSONObject object = JSON.parseObject(jsonStr);
return object.getString("errcode");
}