Add get role controller. Optimize code.

src/main/kotlin/top/fatweb/api/controller/permission/RoleController.kt

@@ -0,0 +1,47 @@
+package top.fatweb.api.controller.permission
+
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.tags.Tag
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+import top.fatweb.api.converter.permission.RoleConverter
+import top.fatweb.api.entity.common.ResponseCode
+import top.fatweb.api.entity.common.ResponseResult
+import top.fatweb.api.param.authentication.RoleAddParam
+import top.fatweb.api.param.authentication.RoleGetParam
+import top.fatweb.api.service.permission.IRoleService
+import top.fatweb.api.vo.PageVo
+import top.fatweb.api.vo.permission.RoleVo
+
+/**
+ * 角色表 前端控制器
+ *
+ * @author FatttSnake
+ * @since 2023-11-09
+ */
+@Tag(name = "角色管理", description = "角色管理相关接口")
+@RestController
+@RequestMapping("/system/role")
+class RoleController(
+    private val roleService: IRoleService
+) {
+    @Operation(summary = "获取角色列表")
+    @GetMapping
+    fun get(roleGetParam: RoleGetParam?): ResponseResult<PageVo<RoleVo>> {
+        return ResponseResult.success(
+            ResponseCode.DATABASE_SELECT_SUCCESS, data = RoleConverter.rolePageToRolePageVo(
+                roleService.getPage(roleGetParam)
+            )
+        )
+    }
+
+    @Operation(summary = "添加角色")
+    @PostMapping
+    fun add(roleAddParam: RoleAddParam): ResponseResult<RoleVo> {
+        return roleService.add(roleAddParam)
+            ?.let { ResponseResult.success(ResponseCode.DATABASE_INSERT_SUCCESS, data = it) }
+            ?: let { ResponseResult.fail(ResponseCode.DATABASE_INSERT_FAILED) }
+    }
+}