add FrequencyControl

mallchat-tools/mallchat-common-starter/src/main/java/com/abin/mallchat/common/FrequencyControlConstant.java

@@ -0,0 +1,10 @@
+package com.abin.mallchat.common;
+
+public interface FrequencyControlConstant {
+
+    String TOTAL_COUNT_WITH_IN_FIX_TIME_FREQUENCY_CONTROLLER = "TotalCountWithInFixTime";
+
+    String SLIDING_WINDOW_FREQUENCY_CONTROLLER = "SlidingWindow";
+
+    String TOKEN_BUCKET_FREQUENCY_CONTROLLER = "TokenBucket";
+}

mallchat-tools/mallchat-common-starter/src/main/java/com/abin/mallchat/utils/SpElUtils.java

@@ -0,0 +1,30 @@
+package com.abin.mallchat.utils;
+
+import org.springframework.core.DefaultParameterNameDiscoverer;
+import org.springframework.expression.EvaluationContext;
+import org.springframework.expression.Expression;
+import org.springframework.expression.ExpressionParser;
+import org.springframework.expression.spel.standard.SpelExpressionParser;
+import org.springframework.expression.spel.support.StandardEvaluationContext;
+
+import java.lang.reflect.Method;
+import java.util.Optional;
+
+public class SpElUtils {
+    private static final ExpressionParser parser = new SpelExpressionParser();
+    private static final DefaultParameterNameDiscoverer parameterNameDiscoverer = new DefaultParameterNameDiscoverer();
+
+    public static String parseSpEl(Method method, Object[] args, String spEl) {
+        String[] params = Optional.ofNullable(parameterNameDiscoverer.getParameterNames(method)).orElse(new String[]{});//解析参数名
+        EvaluationContext context = new StandardEvaluationContext();//el解析需要的上下文对象
+        for (int i = 0; i < params.length; i++) {
+            context.setVariable(params[i], args[i]);//所有参数都作为原材料扔进去
+        }
+        Expression expression = parser.parseExpression(spEl);
+        return expression.getValue(context, String.class);
+    }
+
+    public static String getMethodKey(Method method) {
+        return method.getDeclaringClass() + "#" + method.getName();
+    }
+}