categoryController

    @GetMappingpublic Result<List<Category>> list(){List<Category> cs = categoryService.list();return Result.success(cs);}

 categoryService

    //列表查询List<Category> list();

categoryServiceImpl

    @Overridepublic List<Category> list() {Map<String,Object> map = ThreadLocalUtil.get();Integer userId = (Integer) map.get("id");return categoryMapper.list(userId);}

categoryMapper

     //查询所有@Select("select * from category where create_user = #{userId}")List<Category> list(Integer userId);

pojo.Category

package com.lin.springboot01.pojo;import com.fasterxml.jackson.annotation.JsonFormat;
import jakarta.validation.constraints.NotEmpty;
import lombok.Data;import java.time.LocalDateTime;@Data
public class Category {private Integer id;//主键@NotEmptyprivate String categoryName;//分类名称@NotEmptyprivate String categoryAlias;//分类别名private Integer createUser;//创建人ID@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")private LocalDateTime createTime;//创建时间@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")private LocalDateTime updateTime;//更新时间
}

成功：