修改entity repository

src/main/java/com/example/springbootdemo/SpringbootdemoApplication.java

@@ -1,17 +1,13 @@
 package com.example.springbootdemo;
 
-import com.example.demo.config.MyConfig;
-import com.example.demo.controller.User;
-import com.example.springbootdemo.controller.TrainJavaController;
-import com.example.springbootdemo.zxyTeST.EnumTest;
-import com.example.springbootdemo.zxyTeST.SubClass;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.ComponentScan;
 
-@SpringBootApplication
+@SpringBootApplication(scanBasePackages = {"com.example"})
 @ComponentScan({"com.example.demo","com.example.springbootdemo"})
+
 public class SpringbootdemoApplication {
     public static void main(String[] args) {
         ConfigurableApplicationContext run  = SpringApplication.run(SpringbootdemoApplication.class, args);

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

@@ -15,9 +15,9 @@ public class HelloController {
     ColorRepository colorRepository;
     @RequestMapping("/hello")
     public void hello() {
-        List<Color> colors = colorRepository.findAll();
-        for (Color color:colors) {
-            System.out.println(color);
+        List<Color> listColors = colorRepository.findByColorId(2314);
+        for (Color color:listColors) {
+            System.out.println("color_name="+color.getColorName()+"    color_id="+color.getColorId());
         }
     }
 

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

@@ -6,6 +6,6 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import java.util.List;
 
 public interface ColorRepository extends JpaRepository<Color,Long> {
-    List<Color> findColorsByColor_id(String color_id);
-    Color findColorsByColor_idAndColor_name(String color_id,String color_name);
+    List<Color> findByColorId(Integer color_id);
+    Color findByColorIdAndColorName(String color_id,String color_name);
 }

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

@@ -6,38 +6,46 @@ import java.io.Serializable;
 @Entity
 @Table(name = "wb_tbl_color")
 public class Color implements Serializable {
+    public void setColorId(Integer colorId) {
+        this.colorId = colorId;
+    }
+
     @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private long color_id;
-    public long getColor_id() {
-        return color_id;
+    @GeneratedValue
+    @Column(name="color_id")
+    private Integer colorId;
+    public Integer getColorId() {
+        return colorId;
     }
     @Column(name="color_name")
-    private String color_name;
-    public String getColor_name() {
-        return color_name;
+    private String colorName;
+    @Column(name = "color_status")
+    private String colorStatus;
+    @Column(name = "color_type")
+    private String colorType;
+    public String getColorName() {
+        return colorName;
     }
 
-    public String getColor_status() {
-        return color_status;
+    public void setColorName(String colorName) {
+        this.colorName = colorName;
     }
 
-    public void setColor_status(String color_status) {
-        this.color_status = color_status;
+    public String getColorStatus() {
+        return colorStatus;
     }
-    @Column(name = "color_status")
-    private String color_status;
 
-    public String getColor_type() {
-        return color_type;
+    public void setColorStatus(String colorStatus) {
+        this.colorStatus = colorStatus;
     }
 
-    public void setColor_type(String color_type) {
-        this.color_type = color_type;
+    public String getColorType() {
+        return colorType;
     }
 
-    @Column(name = "color_type")
-    private String color_type;
+    public void setColorType(String colorType) {
+        this.colorType = colorType;
+    }
 
 
 

src/main/resources/application.properties

@@ -1,6 +1,6 @@
 server.port=8081
 spring.datasource.url=jdbc:mysql://192.168.2.130:3306/ceshi?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
-spring.datasource.name=root
+spring.datasource.username=root
 spring.datasource.password=123456
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
 spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect