Controller层实现

src/main/java/com/example/springdemo/controller/MerchantsController.java

@@ -0,0 +1,49 @@
+package com.example.springdemo.controller;
+
+import com.example.springdemo.entities.Merchants;
+import com.example.springdemo.service.MerchantsService;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/merchants")
+public class MerchantsController {
+    @Resource
+    private MerchantsService merchantsService;
+
+    @GetMapping("/findAll")
+    public List<Merchants> getMerchants() {
+        return merchantsService.findAll();
+    }
+
+    @GetMapping("/findByName")
+    public List<Merchants> getMerchantsByName(@RequestParam("name") String name) {
+        return merchantsService.findByName(name);
+    }
+
+    @GetMapping("/save")
+    public String saveMerchants(@RequestParam("name") String name,
+                                @RequestParam("address") String address,
+                                @RequestParam("description") String description,
+                                @RequestParam("phoneNumber") String phoneNumber) {
+
+        Merchants merchants = new Merchants();
+        merchants.setName(name);
+        merchants.setAddress(address);
+        merchants.setDescription(description);
+        merchants.setPhoneNumber(phoneNumber);
+        merchantsService.save(merchants);
+        return "success";
+    }
+
+    @GetMapping("/delete")
+    public String deleteMerchants(@RequestParam("id") Long id) {
+        merchantsService.deleteById(id);
+        return "success";
+    }
+}

src/main/java/com/example/springdemo/controller/StudentController.java

@@ -1,42 +0,0 @@
-package com.example.springdemo.controller;
-
-import com.example.springdemo.entities.Business;
-import com.example.springdemo.config.DataBaseProperties;
-
-import jakarta.annotation.Resource;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
-
-import java.util.List;
-import java.util.Objects;
-
-@RestController
-@RequestMapping("/student")
-public class StudentController {
-
-    @Resource
-    DataBaseProperties dbProps;
-
-    @GetMapping("/get")
-    public List<String> getStudent() {
-        //  DataBaseProperties dbProps = new DataBaseProperties();
-        return List.of(dbProps.getUsername(), dbProps.getPassword(), dbProps.getDbUrl());
-    }
-
-    @GetMapping("/getBy")
-    public Business getStudentById(@RequestParam String id) {
-
-        var bs = Business.builder()
-                .name(id)
-                .tel(dbProps.getPassword())
-                .build();
-
-        if (!Objects.equals(bs.getTel(), "")) {
-            bs.setTel("");
-        }
-
-        return bs;
-    }
-}