将 bizType 和 bizId 进行封装，实现 SkyWalking Tag 检索

src/main/java/cn/iocoder/dashboard/util/sping/SpElUtil.java

@@ -0,0 +1,40 @@
+package cn.iocoder.dashboard.util.sping;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.reflect.MethodSignature;
+import org.springframework.core.DefaultParameterNameDiscoverer;
+import org.springframework.expression.EvaluationContext;
+import org.springframework.expression.Expression;
+import org.springframework.expression.spel.standard.SpelExpressionParser;
+import org.springframework.expression.spel.support.StandardEvaluationContext;
+
+import java.lang.reflect.Method;
+
+public class SpElUtil {
+
+    private SpElUtil() {
+    }
+
+    public static String analysisSpEl(String spElString, ProceedingJoinPoint joinPoint) {
+        SpelExpressionParser parser = new SpelExpressionParser();
+        DefaultParameterNameDiscoverer nameDiscoverer = new DefaultParameterNameDiscoverer();
+        // 通过joinPoint获取被注解方法
+        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
+        Method method = methodSignature.getMethod();
+        // 使用spring的DefaultParameterNameDiscoverer获取方法形参名数组
+        String[] paramNames = nameDiscoverer.getParameterNames(method);
+        // 解析过后的Spring表达式对象
+        Expression expression = parser.parseExpression(spElString);
+        // spring的表达式上下文对象
+        EvaluationContext context = new StandardEvaluationContext();
+        // 通过joinPoint获取被注解方法的形参
+        Object[] args = joinPoint.getArgs();
+        // 给上下文赋值
+        for (int i = 0; i < args.length; i++) {
+            context.setVariable(paramNames[i], args[i]);
+        }
+        Object value = expression.getValue(context);
+        return value == null ? "null" : value.toString();
+
+    }
+}