add menu support

src/main/java/chanjarster/weixin/api/WxInMemoryConfigStorage.java

@@ -0,0 +1,67 @@
+package chanjarster.weixin.api;
+
+import chanjarster.weixin.bean.WxAccessToken;
+
+/**
+ * 基于内存的微信配置provider，在实际生产环境中应该将这些配置持久化
+ * @author chanjarster
+ *
+ */
+public class WxInMemoryConfigStorage implements WxConfigStorage {
+
+  protected String appId;
+  protected String secret;
+  protected String token;
+  protected String accessToken;
+  protected int expiresIn;
+
+  public void updateAccessToken(WxAccessToken accessToken) {
+    updateAccessToken(accessToken.getAccess_token(), accessToken.getExpires_in());
+  }
+  
+  public void updateAccessToken(String accessToken, int expiresIn) {
+    this.accessToken = accessToken;
+    this.expiresIn = expiresIn;
+  }
+
+  public String getAccessToken() {
+    return this.accessToken;
+  }
+
+  public String getAppId() {
+    return this.appId;
+  }
+
+  public String getSecret() {
+    return this.secret;
+  }
+
+  public String getToken() {
+    return this.token;
+  }
+
+  public int getExpiresIn() {
+    return this.expiresIn;
+  }
+
+  public void setAppId(String appId) {
+    this.appId = appId;
+  }
+
+  public void setSecret(String secret) {
+    this.secret = secret;
+  }
+
+  public void setToken(String token) {
+    this.token = token;
+  }
+
+  public void setAccessToken(String accessToken) {
+    this.accessToken = accessToken;
+  }
+
+  public void setExpiresIn(int expiresIn) {
+    this.expiresIn = expiresIn;
+  }
+
+}