Odczyt RESTowy

PC51-SpringDataH2/src/main/java/com/example/demo/rest/RCustomers.java

+package com.example.demo.rest;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.example.demo.model.Customer;
+import com.example.demo.repo.CustomerRepository;
+
+@RestController
+@RequestMapping(path="/rest/customers", produces="application/json")
+public class RCustomers {
+    @Autowired
+    private CustomerRepository customerRepository;
+    
+    @GetMapping
+    public Iterable<Customer> readAll() {
+        return customerRepository.findAll();
+    }
+    
+    @GetMapping("/{id}")
+    public Customer readOne(@PathVariable("id") long id) {
+        return customerRepository.findById(id);
+    }
+}