角色名称校验，权限查询，角色新增部分接口

src/main/java/com/example/demo/controller/MenuController.java

@@ -0,0 +1,40 @@
+package com.example.demo.controller;
+
+import com.example.demo.domain.vo.MenuVo;
+import com.example.demo.domain.vo.Result;
+import com.example.demo.domain.vo.RoleVo;
+import com.example.demo.service.MenuService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * @program: gold-java
+ * @ClassName MenuController
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 14:10
+ * @Version 1.0
+ **/
+
+@RestController
+@RequestMapping("/menu")
+@RequiredArgsConstructor
+@Slf4j
+@CrossOrigin
+public class MenuController {
+
+    @Autowired
+    private MenuService menuService;
+
+   //获取权限树
+    @PostMapping("/tree")
+    public Result getPermissionTree(@RequestBody RoleVo roleVo) {
+        List<MenuVo> permissionTree = menuService.getPermissionTree(roleVo.getId());
+        return Result.success(permissionTree);
+    }
+}

src/main/java/com/example/demo/controller/RoleController.java

@@ -0,0 +1,41 @@
+package com.example.demo.controller;
+
+import com.example.demo.domain.entity.Role;
+import com.example.demo.domain.vo.Page;
+import com.example.demo.domain.vo.Result;
+import com.example.demo.domain.vo.RoleVo;
+import com.example.demo.service.RefundService;
+import com.example.demo.service.RoleService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.util.ObjectUtils;
+import org.springframework.web.bind.annotation.*;
+
+/**
+ * @program: gold-java
+ * @ClassName RoleController
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 11:23
+ * @Version 1.0
+ **/
+
+@RestController
+@RequestMapping("/role")
+@RequiredArgsConstructor
+@Slf4j
+@CrossOrigin
+public class RoleController {
+
+    @Autowired
+    private RoleService roleService;
+
+    //新增角色
+    @PostMapping("/add")
+    public Result addRole(@RequestBody RoleVo roleVo) {
+
+        return roleService.addRole(roleVo);
+    }
+
+}

src/main/java/com/example/demo/domain/entity/Menu.java

@@ -23,7 +23,7 @@ public class Menu implements Serializable {
     private String permission; // 权限标识
     private Integer sort; // 排序
     private Byte menuStatus; // 状态
-
+    private Integer priority;//优先级
     @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "Asia/Shanghai")
     private Date createTime; // 创建时间
 

src/main/java/com/example/demo/domain/entity/Role.java

@@ -17,6 +17,7 @@ public class Role implements Serializable {
     private Integer id; // 角色id
     private String roleName; // 角色名
     private String roleKey; // 角色标识符
+    private Integer priority;//优先级
 
     @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "Asia/Shanghai")
     private Date createTime; // 创建时间

src/main/java/com/example/demo/domain/vo/MenuVo.java

@@ -0,0 +1,30 @@
+package com.example.demo.domain.vo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+
+/**
+ * @program: gold-java
+ * @ClassName MenuVo
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 13:16
+ * @Version 1.0
+ **/
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class MenuVo {
+
+    private Integer id;//id
+    private String menuName;//菜单名
+    private Integer parentId;//父id
+    private Integer priority;//优先级
+    private Integer menuType;//类型
+    // 子菜单列表（用于构建树形结构）
+    private List<MenuVo> children;
+}

src/main/java/com/example/demo/domain/vo/RoleVo.java

@@ -0,0 +1,35 @@
+package com.example.demo.domain.vo;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.Date;
+
+/**
+ * @program: gold-java
+ * @ClassName RoleVo
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 11:45
+ * @Version 1.0
+ **/
+
+@Data
+@NoArgsConstructor
+public class RoleVo implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    private Integer id; // 角色id
+    private String roleName; // 角色名
+    private String roleKey; // 角色标识符
+    private Integer priority;//优先级
+    private String fatherId;//上级角色id
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "Asia/Shanghai")
+    private Date createTime; // 创建时间
+
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "Asia/Shanghai")
+    private Date updateTime; // 更新时间
+}

src/main/java/com/example/demo/mapper/MenuMapper.java

@@ -0,0 +1,21 @@
+package com.example.demo.mapper;
+
+
+import com.example.demo.domain.vo.MenuVo;
+import org.apache.ibatis.annotations.Mapper;
+import java.util.List;
+
+/**
+ * @program: gold-java
+ * @ClassName MenuMapper
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 13:28
+ * @Version 1.0
+ **/
+@Mapper
+public interface MenuMapper {
+
+    //根据角色ID查菜单权限
+    List<MenuVo> selectMenusByRoleId(Integer roleId);
+}

src/main/java/com/example/demo/mapper/RoleMapper.java

@@ -0,0 +1,24 @@
+package com.example.demo.mapper;
+
+
+import com.example.demo.domain.entity.Role;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.util.Random;
+
+/**
+ * @program: gold-java
+ * @ClassName RoleMaper
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 11:33
+ * @Version 1.0
+ **/
+
+
+@Mapper
+public interface RoleMapper {
+
+    //查找角色名
+    Role selectByRoleName(String roleName);
+}

src/main/java/com/example/demo/service/MenuService.java

@@ -0,0 +1,20 @@
+package com.example.demo.service;
+
+import java.util.List;
+import com.example.demo.domain.vo.MenuVo;
+
+/**
+ * @program: gold-java
+ * @ClassName MenuService
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 13:38
+ * @Version 1.0
+ **/
+
+public interface MenuService {
+
+
+    //根据角色ID生成权限树
+    List<MenuVo> getPermissionTree(Integer roleId);
+}

src/main/java/com/example/demo/service/RoleService.java

@@ -0,0 +1,20 @@
+package com.example.demo.service;
+
+
+import com.example.demo.domain.vo.Result;
+import com.example.demo.domain.vo.RoleVo;
+
+/**
+ * @program: gold-java
+ * @ClassName RoleService
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 11:29
+ * @Version 1.0
+ **/
+
+public interface RoleService {
+
+    //新增角色
+    Result addRole(RoleVo roleVo);
+}

src/main/java/com/example/demo/serviceImpl/MenuServiceImpl.java

@@ -0,0 +1,58 @@
+package com.example.demo.serviceImpl;
+
+import com.example.demo.domain.vo.MenuVo;
+import com.example.demo.mapper.MenuMapper;
+import com.example.demo.service.MenuService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+/**
+ * @program: gold-java
+ * @ClassName MenuServiceImpl
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 13:38
+ * @Version 1.0
+ **/
+
+@Service
+public class MenuServiceImpl implements MenuService {
+
+    @Autowired
+    private MenuMapper menuMapper;
+
+    //构建菜单树
+    @Override
+    public List<MenuVo> getPermissionTree(Integer roleId) {
+        // 1. 查询该管理员的所有权限菜单（平级列表）
+        List<MenuVo> allMenus = menuMapper.selectMenusByRoleId(roleId);
+
+        // 2. 构建树形结构（根节点parentId=1）
+        return buildTree(allMenus, 1);
+    }
+
+    /**
+     * 递归构建树形结构
+     * @param allMenus 所有菜单列表
+     * @param parentId 父菜单ID（初始为0，查根节点）
+     */
+    //详细递归构建树过程
+    private List<MenuVo> buildTree(List<MenuVo> allMenus, Integer parentId) {
+        // 过滤出当前父节点的子菜单
+        List<MenuVo> children = allMenus.stream()
+                .filter(menu ->  Objects.equals(menu.getParentId(), parentId))
+                .collect(Collectors.toList());
+
+        // 递归为每个子菜单设置子节点
+        for (MenuVo child : children) {
+            child.setChildren(buildTree(allMenus, child.getId()));
+        }
+
+        return children;
+    }
+
+}

src/main/java/com/example/demo/serviceImpl/RoleServiceImpl.java

@@ -0,0 +1,66 @@
+package com.example.demo.serviceImpl;
+
+import com.example.demo.domain.vo.Result;
+import com.example.demo.domain.vo.RoleVo;
+import com.example.demo.mapper.RefundMapper;
+import com.example.demo.mapper.RoleMapper;
+import com.example.demo.service.RoleService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * @program: gold-java
+ * @ClassName RoleServiceImpl
+ * @description:
+ * @author: Double
+ * @create: 2025−07-15 11:30
+ * @Version 1.0
+ **/
+
+@Service
+public class RoleServiceImpl implements RoleService {
+
+    @Autowired
+    private RoleMapper roleMapper;
+
+    //新增角色
+    @Override
+    public Result addRole(RoleVo roleVo) {
+        //校验角色名
+        if(roleVo.getRoleName()==null|| roleVo.getRoleName().isEmpty()){
+            return Result.error("角色名为空");
+        }
+        if(roleMapper.selectByRoleName(roleVo.getRoleName())!=null){
+            return Result.error("角色名重复");
+        }
+        if(roleVo.getPriority()==null){
+            return Result.error("优先级为空");
+        }
+        return Result.success("创建成功");
+    }
+}
+
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src/main/resources/application.yml

@@ -4,9 +4,9 @@ spring:
       fail-on-unknown-properties: false
   datasource:
     mysql1:
-      jdbc-url: jdbc:mysql://18.143.76.3:3306/hwgold?serverTimezone=Asia/Shanghai&useSSL=false&useUnicode=true
-      username: hwgold
-      password: aDiw7MERSATdfGta
+      jdbc-url: jdbc:mysql://18.143.76.3:3306/hwgoldc?serverTimezone=Asia/Shanghai&useSSL=false&useUnicode=true
+      username: hwgoldc
+      password: zB48T55wCsHC8KPz
       driver-class-name: com.mysql.cj.jdbc.Driver
       hikari:
         pool-name: mysql1HikariCP

src/main/resources/mapper/MenuMapper.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.example.demo.mapper.MenuMapper">
+
+    <select id="selectMenusByRoleId" resultType="com.example.demo.domain.vo.MenuVo">
+        SELECT DISTINCT
+            m.id,
+            m.menu_name,
+            m.parent_id,
+            m.menu_type,
+            m.priority
+        FROM
+            role r
+                LEFT JOIN role_menu rm ON r.id = rm.role_id
+                LEFT JOIN menu m ON rm.menu_id = m.id
+        WHERE
+            r.id = #{roleId}
+          AND m.id IS NOT NULL
+        ORDER BY
+            m.parent_id,m.priority
+    </select>
+
+</mapper>

src/main/resources/mapper/RoleMapper.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.example.demo.mapper.RoleMapper">
+
+
+    <select id="selectByRoleName" resultType="com.example.demo.domain.entity.Role">
+        SELECT id FROM role
+        <where>
+            role_name = #{roleName}
+        </where>
+    </select>
+
+</mapper>