商品服务-api-三级分类-递归查询树形数据结构获取
1、导入数据
向数据库gulimall_pms中的表pms_category导入数据,脚本如下:
DROP TABLE IF EXISTS `pms_category`;CREATE TABLE `pms_category` (`cat_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '分类id',`name` char(50) DEFAULT NULL COMMENT '分类名称',`parent_cid` bigint(20) DEFAULT NULL COMMENT '父分类id',`cat_level` int(11) DEFAULT NULL COMMENT '层级',`show_status` tinyint(4) DEFAULT NULL COMMENT '是否显示[0-不显示,1显示]',`sort` int(11) DEFAULT NULL COMMENT '排序',`icon` char(255) DEFAULT NULL COMMENT '图标地址',`product_unit` char(50) DEFAULT NULL COMMENT '计量单位',`product_count` int(11) DEFAULT NULL COMMENT '商品数量',PRIMARY KEY (`cat_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1433 DEFAULT CHARSET=utf8mb4 COMMENT='商品三级分类';## 2、后端的代码实现编辑我们product 模块### 2.1 CategoryController```java@Autowiredprivate CategoryService categoryService;/*** 查出所有分类以及子分类,以树形结构组装起来*/@RequestMapping("/list/tree")public R list(){List<CategoryEntity> entities = categoryService.listWithTree();return R.ok().put("data", entities);}
2.2 service
/*** 商品三级分类** @author fangsheng* @email fangsheng@gmail.com* @date 2022-04-10 22:48:10*/
public interface CategoryService extends IService<CategoryEntity> {PageUtils queryPage(Map<String, Object> params);List<CategoryEntity> listWithTree();
}
给CategoryEntity 加入属性
@JsonInclude(JsonInclude.Include.NON_EMPTY)@TableField(exist=false)private List<CategoryEntity> children;
完整的代码
package com.atguigu.gulimall.product.entity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.fasterxml.jackson.annotation.JsonInclude;
import lombok.Data;
import java.io.Serializable;
import java.util.List;/*** 商品三级分类* * @author fangsheng* @email fangsheng@gmail.com* @date 2022-04-10 22:48:10*/
@Data
@TableName("pms_category")
public class CategoryEntity implements Serializable {private static final long serialVersionUID = 1L;/*** 分类id*/@TableIdprivate Long catId;/*** 分类名称*/private String name;/*** 父分类id*/private Long parentCid;/*** 层级*/private Integer catLevel;/*** 是否显示[0-不显示,1显示]*/private Integer showStatus;/*** 排序*/private Integer sort;/*** 图标地址*/private String icon;/*** 计量单位*/private String productUnit;/*** 商品数量*/private Integer productCount;@JsonInclude(JsonInclude.Include.NON_EMPTY)@TableField(exist=false)private List<CategoryEntity> children;}
2.3 servceImpl
package com.atguigu.gulimall.product.service.impl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.service.CategoryService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;@Service("categoryService")
public class CategoryServiceImpl extends ServiceImpl<CategoryDao, CategoryEntity> implements CategoryService {@Overridepublic PageUtils queryPage(Map<String, Object> params) {IPage<CategoryEntity> page = this.page(new Query<CategoryEntity>().getPage(params),new QueryWrapper<CategoryEntity>());return new PageUtils(page);}@Overridepublic List<CategoryEntity> listWithTree() {//1、查出所有分类List<CategoryEntity> entities = baseMapper.selectList(null);//2、组装成父子的树形结构//2.1)、找到所有的一级分类List<CategoryEntity> level1Menus = entities.stream().filter(categoryEntity ->categoryEntity.getParentCid() == 0).map((menu) -> {menu.setChildren(getChildrens(menu, entities));return menu;}).sorted((menu1, menu2) -> {return (menu1.getSort() == null ? 0 : menu1.getSort()) - (menu2.getSort() == null ? 0 : menu2.getSort());}).collect(Collectors.toList());return level1Menus;}//递归查找所有菜单的子菜单private List<CategoryEntity> getChildrens(CategoryEntity root, List<CategoryEntity> all) {List<CategoryEntity> children = all.stream().filter(categoryEntity -> {return categoryEntity.getParentCid() == root.getCatId();}).map(categoryEntity -> {//1、找到子菜单categoryEntity.setChildren(getChildrens(categoryEntity, all));return categoryEntity;}).sorted((menu1, menu2) -> {//2、菜单的排序return (menu1.getSort() == null ? 0 : menu1.getSort()) - (menu2.getSort() == null ? 0 : menu2.getSort());}).collect(Collectors.toList());return children;}}
2.4 测试
运行主启动可能会报nacos 连接的错误,因为我之前在common中引入了配置中心,但是yml 文件没有配置
新建一个bootstrap.properties文件
spring.cloud.nacos.config.server-addr=119.3.105.108:8848
然后在启动 localhost:10000/product/category/list/tree
商品服务-api-三级分类-配置网关路由与路径重写
1、启动程序
启动renren-fast后端系统在启动renren-fast-vue (npm run dev)的前端系统
2、新增目录
给商品系统添加菜单
3、将renren-fast加入nacos
renren-fast引入common并且配置对应的配置中心和注册中心的地址
<dependency><groupId>com.atguigu.gulimall</groupId><artifactId>gulimall-common</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId><version>2.8.5</version></dependency>
application.yml 和 application-dev.yml 都写上吧
spring:cloud:nacos:config:server-addr: 119.3.105.108:8848discovery:server-addr: 119.3.105.108:8848application:name: renren-fast
主启动
@EnableDiscoveryClient //添加开启注解
@SpringBootApplication
public class RenrenApplication {public static void main(String[] args) {SpringApplication.run(RenrenApplication.class, args);}}
如果启动报错,无法来连接上配置中心,新建一个bootstrap.properties文件将配置中心的配置放入进去
如果报错spring boot和spring cloud的版本不兼容就升级spring boot的版本
4、修改gateway服务的配置文件
spring:cloud:gateway:routes:# - id: test_route# uri: https://www.baidu.com# predicates:# - Query=url,baidu## - id: qq_route# uri: https://www.qq.com# predicates:# - Query=url,qq- id: admin_routeuri: lb://renren-fastpredicates:- Path=/api/**filters:- RewritePath=/api/(?<segment>.*),/renren-fast/$\{segment}## 默认前端项目我们都加,/api 为前缀
# - id: admin_route 随意起的一个id,区别其他路由就可以
# uri: lb://renren-fast lb:表示loadBanlence负载均衡 后面跟的是服务名
# predicates:
# - Path=/api/** 断言以api开头的路径都转到renren-fast的服务去
# filters:
# - RewritePath=/api/(?<segment>.*),/renren-fast/$\{segment}
# 路径重写 会将/api/(?<segment>.*) 重写成/renren-fast/$\{segment}
# 其实只是将/api替换成/renren-fast 后面的片段(?<segment>.*)不变
## http://localhost:88/api/captcha.jpg http://localhost:8080/renren-fast/captcha.jpg
## http://localhost:88/api/product/category/list/tree http://localhost:10000/product/category/list/tree
5、修改前端服务的请求路径
让其通过网关转发到renren-fast服务
将前端static/config/index.js 修改如下
/*** 开发环境*/
;(function () {window.SITE_CONFIG = {};// api接口请求地址 修改此处window.SITE_CONFIG['baseUrl'] = 'http://localhost:88/api';// cdn地址 = 域名 + 版本号window.SITE_CONFIG['domain'] = './'; // 域名window.SITE_CONFIG['version'] = ''; // 版本号(年月日时分)window.SITE_CONFIG['cdnUrl'] = window.SITE_CONFIG.domain + window.SITE_CONFIG.version;
})();
6、category.vue
<template><div>分类管理</div>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);this.menus = data.data;});},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
7、测试
先启动gateway
在启动renren-fast
最后启动前端
如果报错 503 则需要在gateway的服务中添加以下的依赖
<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-loadbalancer</artifactId></dependency>
我的版本:springboot2.6.6 springcloud2021.0.1 nacos1.2.1 springcloud-alibaba 2.2.1
第一、首先解释下503错误的原因:
Spring Cloud 2020.0.0版本之前会自动引入Netflix Ribbon依赖,Netflix Ribbon功能跟loadbalancer一样,因Netflix公司停止维护Ribbon后, 在Spring Cloud 2020.0.0版本之后Spring使用loadbalancer替代了Ribbon, 但是loadbalancer依赖需要手动引入. 所以如果你使用的Spring Cloud版本是2020.0.0或更高的版本, 添加loadbalancer依赖即可解决503的问题;
商品服务-api-三级分类-网关统一配置跨域
1、概述
**跨域:**指的是浏览器不能执行其他网站的脚本。它是由浏览器的同源策略造成的,是
浏览器对 javascript 施加的安全限制。
• 同源策略:是指协议,域名,端口都要相同,其中有一个不同都会产生跨域;
2、跨域流程
3、解决跨域-(一)使用nginx部署为同一域
4、解决跨域-(二)配置当次请求允许跨域
1、添加响应头
• Access-Control-Allow-Origin:支持哪些来源的请求跨域
• Access-Control-Allow-Methods:支持哪些方法跨域
• Access-Control-Allow-Credentials:跨域请求默认不包含cookie,设置为true可以包含 cookie
• Access-Control-Expose-Headers:跨域请求暴露的字段
• CORS请求时,XMLHttpRequest对象的getResponseHeader()方法只能拿到6个基本字段:
Cache-Control、Content-Language、Content-Type、Expires、Last-Modified、Pragma。如
果想拿到其他字段,就必须在Access-Control-Expose-Headers里面指定。
• Access-Control-Max-Age:表明该响应的有效时间为多少秒。在有效时间内,浏览器无 须为同一请求再次发起预检请求。请注意,浏览器自身维护了一个最大有效时间,如果 该首部字段的值超过了最大有效时间,将不会生效。
5、编码实现
5.1 在gateway服务新建包config 并编写配置类
package com.atguigu.gulimall.gateway.config;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.reactive.CorsWebFilter;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;/*** @创建人: 放生* @创建时间: 2022/4/15* @描述:*/
@Configuration
public class GulimallCorsConfiguration {@Beanpublic CorsWebFilter corsWebFilter(){UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();CorsConfiguration corsConfiguration = new CorsConfiguration();//1、配置跨域corsConfiguration.addAllowedHeader("*");corsConfiguration.addAllowedMethod("*");corsConfiguration.addAllowedOrigin("*");corsConfiguration.setAllowCredentials(true);source.registerCorsConfiguration("/**",corsConfiguration);return new CorsWebFilter(source);}
}
注视掉renren-fast原有的跨域配置类
5.3 重新启动gateway renren-fast 服务
商品服务-api-三级分类-查询显示三级树形数据
获取商品的数据是请求的product的服务,那么接下来配置商品服务到网关
1、把商品product 服务注册到注册中心,和配置配置中心
1.1 确保之前已经在product服务引入了common模块,而common 模块的pom 引入了注册中心和配置中心
2.2 product 服务新建bootstrap.properties文件配置配置中心,并写服务名,然后在ymal 文件配置注册中心
bootstrap.properties:
# bootstrap.properties (暂时当前的命名空间下没有任何yaml文件)
spring.cloud.nacos.config.server-addr=119.3.105.108:8848
spring.cloud.nacos.config.namespace=0eb0bc69-abfa-4d55-92b9-786f5092036e
application.yml
spring:datasource:username: rootpassword: 123456url: jdbc:mysql://119.3.105.108:3306/gulimall_pms?useUnicode=true&useSSL=false&characterEncoding=utf-8&serverTimezone=Asia/Shanghai&useAffectedRows=true&allowMultiQueries=truedriver-class-name: com.mysql.jdbc.Drivercloud:nacos:discovery:server-addr: 119.3.105.108:8848application:name: gulimall-product
mybatis-plus:mapper-locations: classpath:/mapper/**/*.xmlglobal-config:db-config:id-type: autologic-delete-value: 1logic-not-delete-value: 0
server:port: 10000logging:level:com.atguigu.gulimall: info
2、gateway服务加入product服务的路由
- id: product_routeuri: lb://gulimall-productpredicates:- Path=/api/product/**,/hellofilters:- RewritePath=/api/(?<segment>.*),/$\{segment}- id: admin_routeuri: lb://renren-fastpredicates:- Path=/api/**filters:- RewritePath=/api/(?<segment>.*),/renren-fast/$\{segment}# 注意product 的路由放在上面,网关的路由是从上往下匹配的,如果匹配成功就不会在往下配置了,所以越是精准的路由# 越是要放在最上面。
3、分别先后启动 gateway renren-fast product 服务
4、category.vue
前端代码基本上都是Element-UI的组件代码
<template><el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey"ref="menuTree"><span class="custom-tree-node" slot-scope="{ node, data }"><span>{{ node.label }}</span><span><el-buttonv-if="node.level <=2"type="text"size="mini"@click="() => append(data)">Append</el-button><el-button type="text" size="mini" @click="edit(data)">edit</el-button><el-buttonv-if="node.childNodes.length==0"type="text"size="mini"@click="() => remove(node, data)">Delete</el-button></span></span></el-tree>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {pCid: [],draggable: false,updateNodes: [],maxLevel: 0,title: "",dialogType: "", //edit,addcategory: {name: "",parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,productUnit: "",icon: "",catId: null},dialogVisible: false,menus: [],expandedKey: [],defaultProps: {children: "children",label: "name"}};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);console.log(data.data);this.menus = data.data;});},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
测试
商品服务-api-三级分类-删除-页面效果
商品的分类中 我们的逻辑是,叶子菜单我们不显示Append ,并且添加对应的添加和删除的方法
<template><el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey"ref="menuTree"><span class="custom-tree-node" slot-scope="{ node, data }"><span>{{ node.label }}</span><span><el-buttonv-if="node.level <=2"type="text"size="mini"@click="() => append(data)">Append</el-button><el-button type="text" size="mini" @click="edit(data)">edit</el-button><el-buttonv-if="node.childNodes.length==0"type="text"size="mini"@click="() => remove(node, data)">Delete</el-button></span></span></el-tree>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {pCid: [],draggable: false,updateNodes: [],maxLevel: 0,title: "",dialogType: "", //edit,addcategory: {name: "",parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,productUnit: "",icon: "",catId: null},dialogVisible: false,menus: [],expandedKey: [],defaultProps: {children: "children",label: "name"}};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);console.log(data.data);this.menus = data.data;});},append(data) {console.log("append", data);this.dialogType = "add";this.title = "添加分类";this.dialogVisible = true;this.category.parentCid = data.catId;this.category.catLevel = data.catLevel * 1 + 1;this.category.catId = null;this.category.name = "";this.category.icon = "";this.category.productUnit = "";this.category.sort = 0;this.category.showStatus = 1;},remove(node, data) {var ids = [data.catId];this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(ids, false)}).then(({ data }) => {this.$message({message: "菜单删除成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [node.parent.data.catId];});}).catch(() => {});console.log("remove", node, data);},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
商品服务-api-三级分类-删除-逻辑删除
我们利用的是 mybatis-plus 的逻辑删除功能,就是将一个状态的字段通过0 和 1 来标识是否删除
可以参考mybatis-plus的官网
1、product的 yml添加以下配置
mybatis-plus:mapper-locations: classpath:/mapper/**/*.xmlglobal-config:db-config:id-type: autologic-delete-value: 1logic-not-delete-value: 0
2、实体类CategoryEntity添加注解
/*** 是否显示[0-不显示,1显示]*/@TableLogic(value = "1",delval = "0")private Integer showStatus;
3、请求的接口是之前代码生成器生成的暂时不改
/*** 删除*/@RequestMapping("/delete")public R delete(@RequestBody Long[] catIds){categoryService.removeByIds(Arrays.asList(catIds));return R.ok();}
4、测试
商品服务-api-三级分类-删除-删除效果细化
删除细化,主要考虑以下几点,删除是提示确认按钮,删除后提示删除成功或则失败,然后删除后对应的父节点要展开
后端代码不东,前端代码如下
<template><el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey"ref="menuTree"><span class="custom-tree-node" slot-scope="{ node, data }"><span>{{ node.label }}</span><span><el-buttonv-if="node.level <=2"type="text"size="mini"@click="() => append(data)">Append</el-button><el-button type="text" size="mini" @click="edit(data)">edit</el-button><el-buttonv-if="node.childNodes.length==0"type="text"size="mini"@click="() => remove(node, data)">Delete</el-button></span></span></el-tree>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {pCid: [],draggable: false,updateNodes: [],maxLevel: 0,title: "",dialogType: "", //edit,addcategory: {name: "",parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,productUnit: "",icon: "",catId: null},dialogVisible: false,menus: [],expandedKey: [],defaultProps: {children: "children",label: "name"}};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);console.log(data.data);this.menus = data.data;});},append(data) {console.log("append", data);this.dialogType = "add";this.title = "添加分类";this.dialogVisible = true;this.category.parentCid = data.catId;this.category.catLevel = data.catLevel * 1 + 1;this.category.catId = null;this.category.name = "";this.category.icon = "";this.category.productUnit = "";this.category.sort = 0;this.category.showStatus = 1;},remove(node, data) {var ids = [data.catId];this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(ids, false)}).then(({ data }) => {this.$message({message: "菜单删除成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [node.parent.data.catId];});}).catch(() => {});console.log("remove", node, data);},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
商品服务-api-三级分类-新增效果完成
新增这块啊的我们仍然暂时只需要修改前端的代码就行 后端的代码暂时不用动
细节实现,点击append 弹框录入数据,提交后端保存后默认展开显示其刚添加的数据
1、新增的修改
<template>
<div><el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey"ref="menuTree"><span class="custom-tree-node" slot-scope="{ node, data }"><span>{{ node.label }}</span><span><el-buttonv-if="node.level <=2"type="text"size="mini"@click="() => append(data)">Append</el-button><el-button type="text" size="mini" @click="edit(data)">edit</el-button><el-buttonv-if="node.childNodes.length==0"type="text"size="mini"@click="() => remove(node, data)">Delete</el-button></span></span></el-tree><el-dialog:title="title":visible.sync="dialogVisible"width="30%":close-on-click-modal="false"><el-form :model="category"><el-form-item label="分类名称"><el-input v-model="category.name" autocomplete="off"></el-input></el-form-item><el-form-item label="图标"><el-input v-model="category.icon" autocomplete="off"></el-input></el-form-item><el-form-item label="计量单位"><el-input v-model="category.productUnit" autocomplete="off"></el-input></el-form-item></el-form><span slot="footer" class="dialog-footer"><el-button @click="dialogVisible = false">取 消</el-button><el-button type="primary" @click="submitData">确 定</el-button></span></el-dialog></div>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {pCid: [],draggable: false,updateNodes: [],maxLevel: 0,title: "",dialogType: "", //edit,addcategory: {name: "",parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,productUnit: "",icon: "",catId: null},dialogVisible: false,menus: [],expandedKey: [],defaultProps: {children: "children",label: "name"}};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);console.log(data.data);this.menus = data.data;});},submitData() {if (this.dialogType == "add") {this.addCategory();}if (this.dialogType == "edit") {this.editCategory();}},//修改三级分类数据editCategory() {var { catId, name, icon, productUnit } = this.category;this.$http({url: this.$http.adornUrl("/product/category/update"),method: "post",data: this.$http.adornData({ catId, name, icon, productUnit }, false)}).then(({ data }) => {this.$message({message: "菜单修改成功",type: "success"});//关闭对话框this.dialogVisible = false;//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [this.category.parentCid];});},//添加三级分类addCategory() {console.log("提交的三级分类数据", this.category);this.$http({url: this.$http.adornUrl("/product/category/save"),method: "post",data: this.$http.adornData(this.category, false)}).then(({ data }) => {this.$message({message: "菜单保存成功",type: "success"});//关闭对话框this.dialogVisible = false;//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [this.category.parentCid];});},append(data) {console.log("append", data);this.dialogType = "add";this.title = "添加分类";this.dialogVisible = true;this.category.parentCid = data.catId;this.category.catLevel = data.catLevel * 1 + 1;this.category.catId = null;this.category.name = "";this.category.icon = "";this.category.productUnit = "";this.category.sort = 0;this.category.showStatus = 1;},remove(node, data) {var ids = [data.catId];this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(ids, false)}).then(({ data }) => {this.$message({message: "菜单删除成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [node.parent.data.catId];});}).catch(() => {});console.log("remove", node, data);},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
因为新增和修改是公用组件的,接下来写修改的
2、后端代码
后端代码还是用之前代码生成器生成的代码,只需要把结果的key 改成data
/*** 信息*/@RequestMapping("/info/{catId}")//@RequiresPermissions("product:category:info")public R info(@PathVariable("catId") Long catId){CategoryEntity category = categoryService.getById(catId);return R.ok().put("data", category);}
3、前端添加编辑方法
<template>
<div><el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey"ref="menuTree"><span class="custom-tree-node" slot-scope="{ node, data }"><span>{{ node.label }}</span><span><el-buttonv-if="node.level <=2"type="text"size="mini"@click="() => append(data)">Append</el-button><el-button type="text" size="mini" @click="edit(data)">edit</el-button><el-buttonv-if="node.childNodes.length==0"type="text"size="mini"@click="() => remove(node, data)">Delete</el-button></span></span></el-tree><el-dialog:title="title":visible.sync="dialogVisible"width="30%":close-on-click-modal="false"><el-form :model="category"><el-form-item label="分类名称"><el-input v-model="category.name" autocomplete="off"></el-input></el-form-item><el-form-item label="图标"><el-input v-model="category.icon" autocomplete="off"></el-input></el-form-item><el-form-item label="计量单位"><el-input v-model="category.productUnit" autocomplete="off"></el-input></el-form-item></el-form><span slot="footer" class="dialog-footer"><el-button @click="dialogVisible = false">取 消</el-button><el-button type="primary" @click="submitData">确 定</el-button></span></el-dialog></div>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {pCid: [],draggable: false,updateNodes: [],maxLevel: 0,title: "",dialogType: "", //edit,addcategory: {name: "",parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,productUnit: "",icon: "",catId: null},dialogVisible: false,menus: [],expandedKey: [],defaultProps: {children: "children",label: "name"}};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);console.log(data.data);this.menus = data.data;});},submitData() {if (this.dialogType == "add") {this.addCategory();}if (this.dialogType == "edit") {this.editCategory();}},//修改三级分类数据editCategory() {var { catId, name, icon, productUnit } = this.category;this.$http({url: this.$http.adornUrl("/product/category/update"),method: "post",data: this.$http.adornData({ catId, name, icon, productUnit }, false)}).then(({ data }) => {this.$message({message: "菜单修改成功",type: "success"});//关闭对话框this.dialogVisible = false;//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [this.category.parentCid];});},//添加三级分类addCategory() {console.log("提交的三级分类数据", this.category);this.$http({url: this.$http.adornUrl("/product/category/save"),method: "post",data: this.$http.adornData(this.category, false)}).then(({ data }) => {this.$message({message: "菜单保存成功",type: "success"});//关闭对话框this.dialogVisible = false;//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [this.category.parentCid];});},append(data) {console.log("append", data);this.dialogType = "add";this.title = "添加分类";this.dialogVisible = true;this.category.parentCid = data.catId;this.category.catLevel = data.catLevel * 1 + 1;this.category.catId = null;this.category.name = "";this.category.icon = "";this.category.productUnit = "";this.category.sort = 0;this.category.showStatus = 1;},edit(data) {console.log("要修改的数据", data);this.dialogType = "edit";this.title = "修改分类";this.dialogVisible = true;//发送请求获取当前节点最新的数据this.$http({url: this.$http.adornUrl(`/product/category/info/${data.catId}`),method: "get"}).then(({ data }) => {//请求成功console.log("要回显的数据", data);this.category.name = data.data.name;this.category.catId = data.data.catId;this.category.icon = data.data.icon;this.category.productUnit = data.data.productUnit;this.category.parentCid = data.data.parentCid;this.category.catLevel = data.data.catLevel;this.category.sort = data.data.sort;this.category.showStatus = data.data.showStatus;/*** parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,*/});},remove(node, data) {var ids = [data.catId];this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(ids, false)}).then(({ data }) => {this.$message({message: "菜单删除成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [node.parent.data.catId];});}).catch(() => {});console.log("remove", node, data);},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
商品服务-api-三级分类-修改-拖拽效果
1、拖拽功能也是Element-ui 组件提供的的,只需要配置draggable的相关属性以及定义对应的方法即可
draggable: true 表示开启拖拽功能 默认是关闭的,allowDrop()方法是做是否允许拖拽到指定位置的方法
<el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey":draggable="draggable":allow-drop="allowDrop"ref="menuTree">
allowDrop(draggingNode, dropNode, type) {//1、被拖动的当前节点以及所在的父节点总层数不能大于3//1)、被拖动的当前节点总层数console.log("allowDrop:", draggingNode, dropNode, type);//this.countNodeLevel(draggingNode);//当前正在拖动的节点+父节点所在的深度不大于3即可let deep = Math.abs(this.maxLevel - draggingNode.level) + 1;console.log("深度:", deep);// this.maxLevelif (type == "inner") {// console.log(// `this.maxLevel:${this.maxLevel};draggingNode.data.catLevel:${draggingNode.data.catLevel};dropNode.level:${dropNode.level}`// );return deep + dropNode.level <= 3;} else {return deep + dropNode.parent.level <= 3;}},countNodeLevel(node) {//找到所有子节点,求出最大深度if (node.childNodes != null && node.childNodes.length > 0) {for (let i = 0; i < node.childNodes.length; i++) {if (node.childNodes[i].level > this.maxLevel) {this.maxLevel = node.childNodes[i].level;}this.countNodeLevel(node.childNodes[i]);}}},
商品服务-api-三级分类-修改-拖拽数据收集
要获取我们拖拽后的数据,也利用组件提供的方法@node-drop获取结果,并需要自己去做相关的业务逻辑,因为拖拽后循序发生了变化我们需要重新排序,然后把整个结果集合传给后端(但是不可能没拖动一次就向后端提交一次,这样太频繁了,我们最终是点击按钮开启拖拽,在给个按钮提交才向后端提交数据)
@node-drop=handleDrop
handleDrop(draggingNode, dropNode, dropType, ev) {console.log("handleDrop: ", draggingNode, dropNode, dropType);//1、当前节点最新的父节点idlet pCid = 0;let siblings = null;if (dropType == "before" || dropType == "after") {pCid =dropNode.parent.data.catId == undefined? 0: dropNode.parent.data.catId;siblings = dropNode.parent.childNodes;} else {pCid = dropNode.data.catId;siblings = dropNode.childNodes;}this.pCid.push(pCid);//2、当前拖拽节点的最新顺序,for (let i = 0; i < siblings.length; i++) {if (siblings[i].data.catId == draggingNode.data.catId) {//如果遍历的是当前正在拖拽的节点let catLevel = draggingNode.level;if (siblings[i].level != draggingNode.level) {//当前节点的层级发生变化catLevel = siblings[i].level;//修改他子节点的层级this.updateChildNodeLevel(siblings[i]);}this.updateNodes.push({catId: siblings[i].data.catId,sort: i,parentCid: pCid,catLevel: catLevel});} else {this.updateNodes.push({ catId: siblings[i].data.catId, sort: i });}}//3、当前拖拽节点的最新层级console.log("updateNodes", this.updateNodes);},updateChildNodeLevel(node) {if (node.childNodes.length > 0) {for (let i = 0; i < node.childNodes.length; i++) {var cNode = node.childNodes[i].data;this.updateNodes.push({catId: cNode.catId,catLevel: node.childNodes[i].level});this.updateChildNodeLevel(node.childNodes[i]);}}},
商品服务-api-三级分类-修改-拖拽功能完成
1、编辑后端的保存方法
只需要在product模块的categoryController的类中新增以下方法即可
@RequestMapping("/update/sort")//@RequiresPermissions("product:category:update")public R updateSort(@RequestBody CategoryEntity[] category){categoryService.updateBatchById(Arrays.asList(category));return R.ok();}
下一章节统一写前端保存的方法,向后端提交数据
商品服务-api-三级分类-修改-批量拖拽效果
1、添加拖拽功能开启按钮和批量修改按钮
<el-switch v-model="draggable" active-text="开启拖拽" inactive-text="关闭拖拽"></el-switch><el-button v-if="draggable" @click="batchSave">批量保存</el-button>
2、批量提交
batchSave() {this.$http({url: this.$http.adornUrl("/product/category/update/sort"),method: "post",data: this.$http.adornData(this.updateNodes, false)}).then(({ data }) => {this.$message({message: "菜单顺序等修改成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = this.pCid;this.updateNodes = [];this.maxLevel = 0;// this.pCid = 0;});},
商品服务-api-三级分类-删除-批量删除&小结
1、添加批量删除按钮
<el-button type="danger" @click="batchDelete">批量删除</el-button>
2、前端批量删除方法
要获取主键中所有选中的数据,然后提交给后端
batchDelete() {let catIds = [];let checkedNodes = this.$refs.menuTree.getCheckedNodes();console.log("被选中的元素", checkedNodes);for (let i = 0; i < checkedNodes.length; i++) {catIds.push(checkedNodes[i].catId);}this.$confirm(`是否批量删除【${catIds}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(catIds, false)}).then(({ data }) => {this.$message({message: "菜单批量删除成功",type: "success"});this.getMenus();});}).catch(() => {});},
3、完整的前端代码 category.vue
<template>
<div><el-switch v-model="draggable" active-text="开启拖拽" inactive-text="关闭拖拽"></el-switch><el-button v-if="draggable" @click="batchSave">批量保存</el-button><el-button type="danger" @click="batchDelete">批量删除</el-button><el-tree:data="menus":props="defaultProps":expand-on-click-node="false"show-checkboxnode-key="catId":default-expanded-keys="expandedKey":draggable="draggable":allow-drop="allowDrop"@node-drop="handleDrop"ref="menuTree"><span class="custom-tree-node" slot-scope="{ node, data }"><span>{{ node.label }}</span><span><el-buttonv-if="node.level <=2"type="text"size="mini"@click="() => append(data)">Append</el-button><el-button type="text" size="mini" @click="edit(data)">edit</el-button><el-buttonv-if="node.childNodes.length==0"type="text"size="mini"@click="() => remove(node, data)">Delete</el-button></span></span></el-tree><el-dialog:title="title":visible.sync="dialogVisible"width="30%":close-on-click-modal="false"><el-form :model="category"><el-form-item label="分类名称"><el-input v-model="category.name" autocomplete="off"></el-input></el-form-item><el-form-item label="图标"><el-input v-model="category.icon" autocomplete="off"></el-input></el-form-item><el-form-item label="计量单位"><el-input v-model="category.productUnit" autocomplete="off"></el-input></el-form-item></el-form><span slot="footer" class="dialog-footer"><el-button @click="dialogVisible = false">取 消</el-button><el-button type="primary" @click="submitData">确 定</el-button></span></el-dialog></div>
</template><script>
//这里可以导入其他文件(比如:组件,工具js,第三方插件js,json文件,图片文件等等)
//例如:import 《组件名称》 from '《组件路径》';
export default {//import引入的组件需要注入到对象中才能使用components: {},props: {},data() {return {pCid: [],draggable: false,updateNodes: [],maxLevel: 0,title: "",dialogType: "", //edit,addcategory: {name: "",parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,productUnit: "",icon: "",catId: null},dialogVisible: false,menus: [],expandedKey: [],defaultProps: {children: "children",label: "name"}};},//计算属性 类似于data概念computed: {},//监控data中的数据变化watch: {},//方法集合methods: {getMenus() {this.$http({url: this.$http.adornUrl("/product/category/list/tree"),method: "get"}).then(({ data }) => {console.log("成功获取到菜单数据...", data.data);console.log(data.data);this.menus = data.data;});},handleDrop(draggingNode, dropNode, dropType, ev) {console.log("handleDrop: ", draggingNode, dropNode, dropType);//1、当前节点最新的父节点idlet pCid = 0;let siblings = null;if (dropType == "before" || dropType == "after") {pCid =dropNode.parent.data.catId == undefined? 0: dropNode.parent.data.catId;siblings = dropNode.parent.childNodes;} else {pCid = dropNode.data.catId;siblings = dropNode.childNodes;}this.pCid.push(pCid);//2、当前拖拽节点的最新顺序,for (let i = 0; i < siblings.length; i++) {if (siblings[i].data.catId == draggingNode.data.catId) {//如果遍历的是当前正在拖拽的节点let catLevel = draggingNode.level;if (siblings[i].level != draggingNode.level) {//当前节点的层级发生变化catLevel = siblings[i].level;//修改他子节点的层级this.updateChildNodeLevel(siblings[i]);}this.updateNodes.push({catId: siblings[i].data.catId,sort: i,parentCid: pCid,catLevel: catLevel});} else {this.updateNodes.push({ catId: siblings[i].data.catId, sort: i });}}//3、当前拖拽节点的最新层级console.log("updateNodes", this.updateNodes);}, batchSave() {this.$http({url: this.$http.adornUrl("/product/category/update/sort"),method: "post",data: this.$http.adornData(this.updateNodes, false)}).then(({ data }) => {this.$message({message: "菜单顺序等修改成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = this.pCid;this.updateNodes = [];this.maxLevel = 0;// this.pCid = 0;});},batchDelete() {let catIds = [];let checkedNodes = this.$refs.menuTree.getCheckedNodes();console.log("被选中的元素", checkedNodes);for (let i = 0; i < checkedNodes.length; i++) {catIds.push(checkedNodes[i].catId);}this.$confirm(`是否批量删除【${catIds}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(catIds, false)}).then(({ data }) => {this.$message({message: "菜单批量删除成功",type: "success"});this.getMenus();});}).catch(() => {});},updateChildNodeLevel(node) {if (node.childNodes.length > 0) {for (let i = 0; i < node.childNodes.length; i++) {var cNode = node.childNodes[i].data;this.updateNodes.push({catId: cNode.catId,catLevel: node.childNodes[i].level});this.updateChildNodeLevel(node.childNodes[i]);}}},allowDrop(draggingNode, dropNode, type) {//1、被拖动的当前节点以及所在的父节点总层数不能大于3//1)、被拖动的当前节点总层数console.log("allowDrop:", draggingNode, dropNode, type);//this.countNodeLevel(draggingNode);//当前正在拖动的节点+父节点所在的深度不大于3即可let deep = Math.abs(this.maxLevel - draggingNode.level) + 1;console.log("深度:", deep);// this.maxLevelif (type == "inner") {// console.log(// `this.maxLevel:${this.maxLevel};draggingNode.data.catLevel:${draggingNode.data.catLevel};dropNode.level:${dropNode.level}`// );return deep + dropNode.level <= 3;} else {return deep + dropNode.parent.level <= 3;}},countNodeLevel(node) {//找到所有子节点,求出最大深度if (node.childNodes != null && node.childNodes.length > 0) {for (let i = 0; i < node.childNodes.length; i++) {if (node.childNodes[i].level > this.maxLevel) {this.maxLevel = node.childNodes[i].level;}this.countNodeLevel(node.childNodes[i]);}}},submitData() {if (this.dialogType == "add") {this.addCategory();}if (this.dialogType == "edit") {this.editCategory();}},//修改三级分类数据editCategory() {var { catId, name, icon, productUnit } = this.category;this.$http({url: this.$http.adornUrl("/product/category/update"),method: "post",data: this.$http.adornData({ catId, name, icon, productUnit }, false)}).then(({ data }) => {this.$message({message: "菜单修改成功",type: "success"});//关闭对话框this.dialogVisible = false;//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [this.category.parentCid];});},//添加三级分类addCategory() {console.log("提交的三级分类数据", this.category);this.$http({url: this.$http.adornUrl("/product/category/save"),method: "post",data: this.$http.adornData(this.category, false)}).then(({ data }) => {this.$message({message: "菜单保存成功",type: "success"});//关闭对话框this.dialogVisible = false;//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [this.category.parentCid];});},append(data) {console.log("append", data);this.dialogType = "add";this.title = "添加分类";this.dialogVisible = true;this.category.parentCid = data.catId;this.category.catLevel = data.catLevel * 1 + 1;this.category.catId = null;this.category.name = "";this.category.icon = "";this.category.productUnit = "";this.category.sort = 0;this.category.showStatus = 1;},edit(data) {console.log("要修改的数据", data);this.dialogType = "edit";this.title = "修改分类";this.dialogVisible = true;//发送请求获取当前节点最新的数据this.$http({url: this.$http.adornUrl(`/product/category/info/${data.catId}`),method: "get"}).then(({ data }) => {//请求成功console.log("要回显的数据", data);this.category.name = data.data.name;this.category.catId = data.data.catId;this.category.icon = data.data.icon;this.category.productUnit = data.data.productUnit;this.category.parentCid = data.data.parentCid;this.category.catLevel = data.data.catLevel;this.category.sort = data.data.sort;this.category.showStatus = data.data.showStatus;/*** parentCid: 0,catLevel: 0,showStatus: 1,sort: 0,*/});},remove(node, data) {var ids = [data.catId];this.$confirm(`是否删除【${data.name}】菜单?`, "提示", {confirmButtonText: "确定",cancelButtonText: "取消",type: "warning"}).then(() => {this.$http({url: this.$http.adornUrl("/product/category/delete"),method: "post",data: this.$http.adornData(ids, false)}).then(({ data }) => {this.$message({message: "菜单删除成功",type: "success"});//刷新出新的菜单this.getMenus();//设置需要默认展开的菜单this.expandedKey = [node.parent.data.catId];});}).catch(() => {});console.log("remove", node, data);},},//生命周期 - 创建完成(可以访问当前this实例)created() {this.getMenus();},//生命周期 - 挂载完成(可以访问DOM元素)mounted() {},beforeCreate() {}, //生命周期 - 创建之前beforeMount() {}, //生命周期 - 挂载之前beforeUpdate() {}, //生命周期 - 更新之前updated() {}, //生命周期 - 更新之后beforeDestroy() {}, //生命周期 - 销毁之前destroyed() {}, //生命周期 - 销毁完成activated() {} //如果页面有keep-alive缓存功能,这个函数会触发
};
</script><style scoped></style>
商品服务-api-品牌管理-逆向工程前后端代码
其实代码生成器不仅仅只生成了后端代码,简单的curd的前端代码也是有生成的,也可以用
1、新建菜单
2、导入生成的前端代码到对应的目录
3、重启查看
4、注解前端src > utils > index.js 的权限权限代码
/*** 是否有权限* @param {*} key*/
export function isAuth (key) {// return JSON.parse(sessionStorage.getItem('permissions') || '[]').indexOf(key) !== -1 || false// 让它固定返回为 truereturn true
}
基本的增删改查是ok 的
商品服务-api-品牌管理-效果优化快速显示开关
1、注释掉eslint 语法检查
build > webpack.base.conf.js 中的createLintingRule 的方法内容注释掉
2、优化显示与不显示的表格处
<el-table-columnprop="showStatus"header-align="center"align="center"label="显示状态"><template slot-scope="scope"><el-switchv-model="scope.row.showStatus"active-color="#13ce66"inactive-color="#ff4949":active-value="1":inactive-value="0"@change="updateBrandStatus(scope.row)"></el-switch></template></el-table-column>
方法编写, 后端的代码不用写路径上加一个update,自动已经生成BrandController,写一个前端的方法updateBrandStatus(scope.row)
/*** 修改*/@RequestMapping("/update/status")//@RequiresPermissions("product:brand:update")public R update(@RequestBody BrandEntity brand){brandService.updateById(brand);return R.ok();}
updateBrandStatus(data) {console.log("最新信息", data);let { brandId, showStatus } = data;//发送请求修改状态this.$http({url: this.$http.adornUrl("/product/brand/update/status"),method: "post",data: this.$http.adornData({ brandId, showStatus }, false)}).then(({ data }) => {this.$message({type: "success",message: "状态更新成功"});});},
3、优化 brand-add-or-update.vue 的显示不显示的代码
<el-form-item label="显示状态" prop="showStatus"><el-switchv-model="dataForm.showStatus"active-color="#13ce66"inactive-color="#ff4949":active-value="1":inactive-value="0"></el-switch></el-form-item>
的前端代码到对应的目录
[外链图片转存中…(img-Kt1USHFx-1652233966141)]
3、重启查看
[外链图片转存中…(img-gjUSg53q-1652233966141)]
4、注解前端src > utils > index.js 的权限权限代码
/*** 是否有权限* @param {*} key*/
export function isAuth (key) {// return JSON.parse(sessionStorage.getItem('permissions') || '[]').indexOf(key) !== -1 || false// 让它固定返回为 truereturn true
}
[外链图片转存中…(img-1T0LoXHI-1652233966141)]
[外链图片转存中…(img-6XvgbaTd-1652233966142)]
基本的增删改查是ok 的
商品服务-api-品牌管理-效果优化快速显示开关
1、注释掉eslint 语法检查
build > webpack.base.conf.js 中的createLintingRule 的方法内容注释掉
[外链图片转存中…(img-EKZVSMrq-1652233966142)]
2、优化显示与不显示的表格处
<el-table-columnprop="showStatus"header-align="center"align="center"label="显示状态"><template slot-scope="scope"><el-switchv-model="scope.row.showStatus"active-color="#13ce66"inactive-color="#ff4949":active-value="1":inactive-value="0"@change="updateBrandStatus(scope.row)"></el-switch></template></el-table-column>
方法编写, 后端的代码不用写路径上加一个update,自动已经生成BrandController,写一个前端的方法updateBrandStatus(scope.row)
/*** 修改*/@RequestMapping("/update/status")//@RequiresPermissions("product:brand:update")public R update(@RequestBody BrandEntity brand){brandService.updateById(brand);return R.ok();}
updateBrandStatus(data) {console.log("最新信息", data);let { brandId, showStatus } = data;//发送请求修改状态this.$http({url: this.$http.adornUrl("/product/brand/update/status"),method: "post",data: this.$http.adornData({ brandId, showStatus }, false)}).then(({ data }) => {this.$message({type: "success",message: "状态更新成功"});});},
3、优化 brand-add-or-update.vue 的显示不显示的代码
<el-form-item label="显示状态" prop="showStatus"><el-switchv-model="dataForm.showStatus"active-color="#13ce66"inactive-color="#ff4949":active-value="1":inactive-value="0"></el-switch></el-form-item>