feature(demo): 新增student表插入数据

src/main/java/com/cloverta/webapi/controller/DemoController.java

@@ -1,14 +1,14 @@
 package com.cloverta.webapi.controller;
 
-import com.cloverta.webapi.mapper.StudentMapper;
 import com.cloverta.webapi.model.Student;
 import com.cloverta.webapi.service.StudentService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
+import java.util.Map;
 
 @RestController
 @RequestMapping("/demo")
@@ -23,4 +23,33 @@ public class DemoController {
     public List<Student> fetch() {
         return studentService.findAll();
     }
+
+    @PostMapping("/insert")
+    public ResponseEntity<?> insert(@RequestParam String name,
+                                                      @RequestParam(required = false) String email,
+                                                      @RequestParam(required = false) String phone) {
+        Student student = new Student();
+        student.setName(name);
+        student.setEmail(email);
+        student.setPhone(phone);
+
+        if (studentService.insert(student)) {
+            // 成功返回201 Created和资源位置
+            return ResponseEntity.status(HttpStatus.CREATED)
+                    .header("Location", "/students/" + student.getId())
+                    .body(Map.of(
+                            "status", "success",
+                            "message", "学生创建成功",
+                            "studentId", student.getId()
+                    ));
+        } else {
+            // 失败返回500错误
+            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
+                    .body(Map.of(
+                            "status", "error",
+                            "message", "学生创建失败",
+                            "error", "数据库操作失败"
+                    ));
+        }
+    }
 }

src/main/java/com/cloverta/webapi/mapper/StudentMapper.java

@@ -9,4 +9,6 @@ import java.util.List;
 public interface StudentMapper {
 
     List<Student> findAll();
+
+    void insert(Student student);
 }

src/main/java/com/cloverta/webapi/service/StudentService.java

@@ -16,4 +16,17 @@ public class StudentService {
     public List<Student> findAll() {
         return studentMapper.findAll();
     }
+
+    public boolean insert(Student student) {
+        if (student == null) {
+            return false;
+        }
+
+        if (student.getName() == null) {
+            return false;
+        }
+
+        studentMapper.insert(student);
+        return true;
+    }
 }

src/main/resources/mapper/StudentMapper.xml

@@ -6,4 +6,12 @@
     <select id="findAll" resultType="Student">
         SELECT * FROM student;
     </select>
+
+    <insert id="insert" parameterType="com.cloverta.webapi.model.Student" useGeneratedKeys="true" keyProperty="id">
+        INSERT INTO student (
+            name, email, phone
+        ) VALUES (
+                    #{name}, #{email}, #{phone}
+                 )
+    </insert>
 </mapper>