<dependency>
 <groupId>me.hao0</groupId>
 <artifactId>wechat</artifactId>
 <version>1.7.0</version>
 </dependency>

 <dependency>
 <groupId>me.hao0</groupId>
 <artifactId>common</artifactId>
 <version>1.1.0</version>
 </dependency>
 <!-- 1.3.0之后引入 -->
 <dependency>
 <groupId>com.google.guava</groupId>
 <artifactId>guava</artifactId>
 <version>18.0</version>
 </dependency>

 Wechat wechat = 
 	WechatBuilder.newBuilder("appId", "appSecret")
 					.conf1() // 其他可选配置
 					...
 					.build();
 // 同步调用
 wechat.module().api();
 
 // 异步调用
 wechat.module().api(Callback<T>);

 public class MyComponent extends Component {
 // ...
 }
 MyComponent myComp = new MyComponent();
wechat.register(myComp);

 List<String> ip();
 List<String> ip(String accessToken);

 public interface AccessTokenLoader {
 /**
 * 获取accessToken
 * @return accessToken,若""或NULL会重新从微信获取accessToken,并触发refresh方法
 */
 String get();
 
 /**
 * 刷新accessToken,实现时需要保存一段时间,以免频繁从微信服务器获取
 * @param token 从微信获取的新AccessToken
 */
 void refresh(AccessToken token);
 }

 public class DefaultAccessTokenLoader implements AccessTokenLoader {
 
 private volatile AccessToken validToken;
 
 @Override
 public String get() {
 return (validToken == null
 || Strings.isNullOrEmpty(validToken.getAccessToken())
 || System.currentTimeMillis() > validToken.getExpiredAt()) ? null : validToken.getAccessToken();
 }
 
 @Override
 public void refresh(AccessToken token) {
 validToken = token;
 }
 }

 public interface TicketLoader {
 /**
 * 获取Ticket
 * @param type ticket类型
 * @see me.hao0.wechat.model.js.TicketType
 * @return 有效的ticket,若返回""或null,则重新从微信请求Ticket,并触发refresh方法
 */
 String get(TicketType type);
 
 /**
 * 刷新Ticket
 * @param ticket 从微信获取的新Ticket
 */
 void refresh(Ticket ticket);
 }

 public class DefaultTicketLoader implements TicketLoader {
 private final Map<TicketType, Ticket> tickets = new ConcurrentHashMap<>();
 
 @Override
 public String get(TicketType type) {
 Ticket t = tickets.get(type);
 return (t == null
 || Strings.isNullOrEmpty(t.getTicket())
 || System.currentTimeMillis() > t.getExpireAt()) ? null : t.getTicket();
 }
 
 @Override
 public void refresh(Ticket ticket) {
 tickets.put(ticket.getType(), ticket);
 }
 }