12 2021 档案

stream流实现树形菜单
摘要：树形菜单用到的类@Datapublic class MenuTree { private Integer id; private String name; private Integer parentId; private List<MenuTree> children;} public List< 阅读全文
posted @ 2021-12-31 10:44 DarkerbeS 阅读(144) 评论(0) 推荐(0) 编辑
全局跨域失效问题
摘要：简单的全局跨域配置 public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") .allowedMethods("POST", "GET", "PUT", " 阅读全文
posted @ 2021-12-09 17:15 DarkerbeS 阅读(118) 评论(0) 推荐(0) 编辑
Stream流根据某一属性分组
摘要：用法 list.stream().collect(Collectors.groupingBy(entity -> entity.getParam())) eg : {type = "类型一",name = 1} {type = "类型一",name = 2} {type = "类型二",name = 阅读全文
posted @ 2021-12-09 10:55 DarkerbeS 阅读(1310) 评论(0) 推荐(0) 编辑

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