mybatis-plus

src/main/java/com/dota/nexus/NexusApplication.java

@@ -1,9 +1,11 @@
 package com.dota.nexus;
 
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
+@MapperScan("com.dota.nexus.mapper")
 public class NexusApplication {
 
 	public static void main(String[] args) {

src/main/java/com/dota/nexus/Solution.java

@@ -0,0 +1,18 @@
+package com.dota.nexus;
+
+class Solution {
+    public boolean canReach(int[] arr, int start) {
+        int n = arr.length;
+        var book = new boolean[n];
+        return dfs(arr, start,book);
+    }
+
+    boolean dfs(int[] arr, int idx, boolean[] book) {
+        if (idx <0 || idx >= arr.length || book[idx]) {
+            return false;
+        }
+        book[idx] = true;
+        if (arr[idx] == 0) return true;
+        return dfs(arr, idx + arr[idx], book) || dfs(arr, idx - arr[idx],book);
+    }
+}

src/main/java/com/dota/nexus/entity/Entity.java

@@ -0,0 +1,16 @@
+package com.dota.nexus.entity;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class Entity {
+    Integer id;
+
+    Integer status;
+
+    LocalDateTime createTime;
+
+    LocalDateTime updateTime;
+}

src/main/java/com/dota/nexus/entity/Goal.java

@@ -0,0 +1,14 @@
+package com.dota.nexus.entity;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@EqualsAndHashCode(callSuper = true)
+@Data
+public class Goal extends Entity {
+    private String name;
+
+    private String tag;
+
+    private String detail;
+}

src/main/java/com/dota/nexus/mapper/GoalMapper.java

@@ -0,0 +1,9 @@
+package com.dota.nexus.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.dota.nexus.entity.Goal;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface GoalMapper extends BaseMapper<Goal> {
+}

src/main/java/com/dota/nexus/service/GoalService.java

@@ -0,0 +1,7 @@
+package com.dota.nexus.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.dota.nexus.entity.Goal;
+
+public interface GoalService extends IService<Goal> {
+}

src/main/java/com/dota/nexus/service/impl/GoalServiceImpl.java

@@ -0,0 +1,10 @@
+package com.dota.nexus.service.impl;
+
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.dota.nexus.entity.Goal;
+import com.dota.nexus.mapper.GoalMapper;
+import com.dota.nexus.service.GoalService;
+
+public class GoalServiceImpl extends ServiceImpl<GoalMapper, Goal> implements GoalService {
+
+}