style: 修改部分代码格式

src/main/java/cn/celess/blog/configuration/RedisConfig.java

@@ -31,9 +31,7 @@ public class RedisConfig extends CachingConfigurerSupport {
     @Override
     @Bean
     public KeyGenerator keyGenerator() {
-        return new KeyGenerator() {
-            @Override
-            public Object generate(Object target, Method method, Object... params) {
+        return (target, method, params) -> {
             StringBuilder sb = new StringBuilder();
             String name = target.getClass().getName();
             sb.append(name.substring(name.lastIndexOf(".") + 1));
@@ -43,7 +41,6 @@ public class RedisConfig extends CachingConfigurerSupport {
                 sb.append("-").append(obj.toString());
             }
             return sb.toString();
-            }
         };
     }
 

src/main/java/cn/celess/blog/configuration/listener/SessionListener.java

@@ -25,7 +25,6 @@ public class SessionListener implements HttpSessionListener {
 
     @Override
     public void sessionCreated(HttpSessionEvent se) {
-        // TODO : can move 'visit' api  to here
         se.getSession().setAttribute("visitDetail", new HashMap<String, Integer>());
         // 10s for debug
         // se.getSession().setMaxInactiveInterval(10);
@@ -44,9 +43,7 @@ public class SessionListener implements HttpSessionListener {
         sb.append("\t登录情况 => ");
         String email = (String) se.getSession().getAttribute("email");
         sb.append(email == null ? "游客访问" : email);
-        visitDetail.forEach((s, integer) -> {
-            sb.append("\n").append("Method:[").append(s.split(":")[1]).append("]\tTimes:[").append(integer).append("]\tPath:[").append(s.split(":")[0]).append("]");
-        });
+        visitDetail.forEach((s, integer) -> sb.append("\n").append("Method:[").append(s.split(":")[1]).append("]\tTimes:[").append(integer).append("]\tPath:[").append(s.split(":")[0]).append("]"));
         log.info(sb.toString());
     }
 }

src/main/java/cn/celess/blog/exception/ExceptionHandle.java

@@ -83,7 +83,12 @@ public class ExceptionHandle {
         simpleMailMessage.setTo("a@celess.cn");
         simpleMailMessage.setSubject("服务器出现了错误");
         StringBuilder msg = new StringBuilder();
-        msg.append("requirePath:\n").append(request.getRequestURL().toString()).append("?").append(request.getQueryString()).append("\n\n\n");
+        String queryString = request.getQueryString();
+        msg.append("requirePath:\n").append(request.getRequestURL().toString());
+        if (queryString != null) {
+            msg.append("?").append(queryString);
+        }
+        msg.append("\n\n\n");
         msg.append("msg:\n").append(e.getMessage()).append("\n\n\n");
         msg.append("date:\n").append(DateFormatUtil.getNow()).append("\n\n\n");
         msg.append("from:\n").append(request.getHeader("User-Agent")).append("\n\n\n");