Implement PATCH

src/main/java/com/example/demo/Controller.java

@@ -2,6 +2,7 @@ package com.example.demo;
 
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PatchMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
@@ -54,6 +55,14 @@ public class Controller {
 			return "ID "+id+" does not exist!";
 		}
 	}
+	@PatchMapping("/data/{id}")
+	public Object _6(@PathVariable Long id,@RequestBody Data data) {
+		if (database.existsById(id)) {
+			return database.save(data);
+		} else {
+			return "ID "+id+" does not exist!";
+		}
+	}
 	@DeleteMapping("/data/{id}")
 	public String _4(@PathVariable Long id) {
 		if (database.existsById(id)) {