#35 springboot: grafana - traffic ex

springboot/actuator/src/main/java/hello/controller/TrafficController.java

@@ -0,0 +1,58 @@
+package hello.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.sql.DataSource;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
+@Slf4j
+@RestController
+public class TrafficController {
+
+    @GetMapping("/cpu")
+    public String cpu() {
+        log.info("cpu");
+        long value = 0;
+
+        for (int i = 0; i < 1000000000L; i++) {
+            value++;
+        }
+        return "ok value = " + value;
+    }
+
+    private List<String> list = new ArrayList<>();
+
+    @GetMapping("/jvm")
+    public String jvm() {
+        log.info("jvm");
+        for (int i = 0; i < 1000000; i++) {
+            list.add("hello jvm!" + i);
+        }
+        return "ok";
+    }
+
+    @Autowired
+    DataSource dataSource;
+
+    @GetMapping("/jdbc")
+    public String jdbc() throws SQLException {
+        log.info("jdbc");
+        Connection conn = dataSource.getConnection();
+        log.info("connection info={}", conn);
+
+//        conn.close();
+        return "ok";
+    }
+
+    @GetMapping("/error-log")
+    public String errorLog() {
+        log.error("error log");
+        return "error log";
+    }
+}