import lombok

pom.xml

@@ -25,7 +25,10 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
-
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

src/main/java/com/example/springbootdemo/controller/HelloController.java

@@ -1,7 +1,9 @@
 package com.example.springbootdemo.controller;
 
 import com.example.demo.controller.User;
+import com.example.springbootdemo.zxyTeST.sql.dao.ArmGrabRepository;
 import com.example.springbootdemo.zxyTeST.sql.dao.ColorRepository;
+import com.example.springbootdemo.zxyTeST.sql.entity.ArmGrabEntity;
 import com.example.springbootdemo.zxyTeST.sql.entity.Color;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -13,12 +15,18 @@ import java.util.List;
 public class HelloController {
     @Autowired
     ColorRepository colorRepository;
+    @Autowired
+    ArmGrabRepository armGrabRepository;
     @RequestMapping("/hello")
     public void hello() {
         List<Color> listColors = colorRepository.findByColorId(2314);
         for (Color color:listColors) {
             System.out.println("color_name="+color.getColorName()+"    color_id="+color.getColorId());
         }
+        List<ArmGrabEntity> armGrabEntityList = armGrabRepository.findByArmGrabId(1);
+        for (ArmGrabEntity armGrabEntity:armGrabEntityList) {
+            System.out.println("id="+armGrabEntity.getArmGrabId()+"    device_code="+armGrabEntity.getDeviceCode());
+        }
     }
 
 

src/main/java/com/example/springbootdemo/zxyTeST/sql/dao/ArmGrabRepository.java

@@ -0,0 +1,10 @@
+package com.example.springbootdemo.zxyTeST.sql.dao;
+
+import com.example.springbootdemo.zxyTeST.sql.entity.ArmGrabEntity;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.List;
+
+public interface ArmGrabRepository extends JpaRepository<ArmGrabEntity,Long> {
+    List<ArmGrabEntity> findByArmGrabId(Integer armGrabId);
+}

src/main/java/com/example/springbootdemo/zxyTeST/sql/entity/ArmGrabEntity.java

@@ -0,0 +1,25 @@
+package com.example.springbootdemo.zxyTeST.sql.entity;
+
+import lombok.Data;
+
+import javax.persistence.*;
+import java.io.Serializable;
+
+/**
+ * @author zhangxiaoyu
+ * @version 1.0
+ * @date 2021/5/25 下午6:17
+ */
+@Entity
+@Data
+@Table(name = "wb_tbl_arm_grab")
+public class ArmGrabEntity implements Serializable {
+    @Id
+    @GeneratedValue
+    @Column(name="arm_grab_id")
+    private Integer armGrabId;
+    @Column(name="device_code")
+    private String deviceCode;
+
+
+}