fix javadoc warning

src/main/java/com/imyeyu/spring/annotation/CaptchaValidAbstractInterceptor.java

@@ -18,6 +18,12 @@ public abstract class CaptchaValidAbstractInterceptor {
 
 	private boolean enable = true;
 
+	/**
+	 * 创建验证码校验拦截器
+	 */
+	protected CaptchaValidAbstractInterceptor() {
+	}
+
 	/** 注入注解 */
 	@Pointcut("@annotation(com.imyeyu.spring.annotation.CaptchaValid)")
 	public void captchaPointCut() {
@@ -45,12 +51,20 @@ public abstract class CaptchaValidAbstractInterceptor {
 		}
 	}
 
+	/**
+	 * 校验验证码
+	 *
+	 * @param captchaId 验证码 ID
+	 * @param captcha   验证码
+	 */
 	protected abstract void verify(String captchaId, String captcha);
 
+	/** 启用校验 */
 	public void enable() {
 		enable = true;
 	}
 
+	/** 禁用校验 */
 	public void disable() {
 		enable = false;
 	}