【后端】项目开发后端知识要点地图

相关推荐

• 开发实践

  集成开放-开放接口如何鉴权加密

  使用前提 已经阅读过文档【oinone 7天从入门到精通】的6.2章节-集成平台 已经依赖了内置模块集成平台eip boot启动工程pom.xml新增jar依赖 <dependency> <groupId>pro.shushi.pamirs.core</groupId> <artifactId>pamirs-eip2-core</artifactId> </dependency> <dependency> <groupId>pro.shushi.pamirs.core</groupId> <artifactId>pamirs-eip2-view</artifactId> </dependency> 配置文件application.yml新增启动依赖模块 pamirs: boot: modules: – eip eip: open-api: enabled: true route: # 开放接口访问IP，开放外网可以配置为0.0.0.0 host: 127.0.0.1 # 开放接口访问端口 port: 8094 # 认证Token加密的AES密钥 aes-key: NxDZUddmvdu3QQpd5jIww2skNx6U0w0uOAXj3NUCLu8= 一、新增开放接口示例代码 开放接口类定义 package pro.shushi.pamirs.demo.api.open; import pro.shushi.pamirs.meta.annotation.Fun; import pro.shushi.pamirs.meta.annotation.Function; @Fun(TestOpenApiModelService.FUN_NAMESPACE) public interface TestOpenApiModelService { String FUN_NAMESPACE = "demo.open.TestOpenApiModelService"; @Function TestOpenApiModel queryById(Long id); } 开放接口实现类 package pro.shushi.pamirs.demo.core.open; import org.apache.camel.ExtendedExchange; import org.springframework.stereotype.Component; import pro.shushi.pamirs.core.common.SuperMap; import pro.shushi.pamirs.demo.api.open.TestEipConfig; import pro.shushi.pamirs.demo.api.open.TestOpenApiModel; import pro.shushi.pamirs.demo.api.open.TestOpenApiModelService; import pro.shushi.pamirs.demo.api.open.TestOpenApiResponse; import pro.shushi.pamirs.eip.api.IEipContext; import pro.shushi.pamirs.eip.api.annotation.Open; import pro.shushi.pamirs.eip.api.constant.EipFunctionConstant; import pro.shushi.pamirs.eip.api.enmu.EipExpEnumerate; import pro.shushi.pamirs.eip.api.entity.openapi.OpenEipResult; import pro.shushi.pamirs.meta.annotation.Fun; import pro.shushi.pamirs.meta.annotation.Function; import pro.shushi.pamirs.meta.common.exception.PamirsException; import java.util.Optional; @Fun(TestOpenApiModelService.FUN_NAMESPACE) @Component public class TestOpenApiModelServiceImpl implements TestOpenApiModelService { @Override @Function public TestOpenApiModel queryById(Long id) { return new TestOpenApiModel().queryById(id); } @Function @Open @Open.Advanced( authenticationProcessorFun = EipFunctionConstant.DEFAULT_AUTHENTICATION_PROCESSOR_FUN, authenticationProcessorNamespace = EipFunctionConstant.FUNCTION_NAMESPACE ) public OpenEipResult<TestOpenApiResponse> queryById4Open(IEipContext<SuperMap> context , ExtendedExchange exchange) { String id = Optional.ofNullable(String.valueOf(context.getInterfaceContext().getIteration("id"))).orElse(""); TestOpenApiModel temp = queryById(Long.valueOf(id)); TestOpenApiResponse response = new TestOpenApiResponse(); if(temp != null ) { response.setAge(temp.getAge()); response.setId(temp.getId()); response.setName(temp.getName()); }else{ response.setAge(1); response.setId(1L); response.setName("oinone eip test"); } OpenEipResult<TestOpenApiResponse> result = new OpenEipResult<TestOpenApiResponse>(response); return result; } @Function @Open(config = TestEipConfig.class,path = "error") @Open.Advanced( httpMethod = "post", authenticationProcessorFun = EipFunctionConstant.DEFAULT_AUTHENTICATION_PROCESSOR_FUN, authenticationProcessorNamespace…

  nation

  2024年7月25日

  1.1K000
• 后端

  自定义用户中心菜单

  使用扩展点实现用户中心菜单替换 1. 工程中引起pamirs-user-api <dependency> <groupId>pro.shushi.pamirs.core</groupId> <artifactId>pamirs-user-api</artifactId> </dependency> 2. 实现TopBarUserBlockAction的后置扩展 实现HookAfter后置扩展接口 @Hook(model = {TopBarUserBlock.MODEL_MODEL}, fun = {"construct"})添加Hook注解注明是TopBarUserBlock模型的construct函数的后置扩展。 增加用户中心菜单 @Component @Order(1) @SPI.Service public class MyTopBarActionExt implements TopBarActionExtendApi { public void edit(List<TopBarAction> list) { list.add(new TopBarAction("top_demo", "top.Teacher", "uiView9a0caf1d574a42c9847a057a0c4a4ad1", ActionTypeEnum.VIEW, 1) .setDisplayName("商品管理") .setIcon("oinone-gongzuotai") ); } } 实现效果 替换原有的用户中心菜单 替换原有的菜单跳转 @Component public class DemoTopBarUserBlockDataHookAfter implements HookAfter { @Override @Hook(model = {TopBarUserBlock.MODEL_MODEL}, fun = {"construct"}) public Object run(Function function, Object ret) { if (ret == null) { return null; } TopBarUserBlock result = null; if (ret instanceof Object[]) { Object[] rets = (Object[]) ((Object[]) ret); if (rets.length == 1) { result = (TopBarUserBlock) rets[0]; //例：替换用户中心：修改密码菜单 //使用name和model查询出模型的ViewAction替换修改密码ViewAction ViewAction demoViewAction = PamirsSession.getContext().getExtendCache(ActionCacheApi.class).get(Dog.MODEL_MODEL, "changePassword"); //设置菜单的icon Map<String, Object> attributes = Optional.ofNullable(demoViewAction.getAttributes()).orElse(new HashMap<>()); attributes.put("icon", "oinone-xiugaimima"); demoViewAction.setAttributes(attributes); //UserViewAction第0个是修改密码ViewAction，使用自定义的ViewAction就可以实现替换 result.getUserViewAction().set(0, demoViewAction); } } else { result = (TopBarUserBlock) ret; } return result; } } 使用@UxRouteButton方式新增ViewAction，更多新增Action方式详见：Action的类型 @Model.model(Dog.MODEL_MODEL) @Component @UxRouteButton( action = @UxAction(name = "changePassword", displayName = "修改密码"), value = @UxRoute(model = Dog.MODEL_MODEL, openType = ActionTargetEnum.DIALOG)) public class DogAction { } 替换原有的个人设置头像跳转 修改点击头像绑定的跳转逻辑 @Order(10) @Component @SPI.Service public class DemoTopBarUserBlockDataApi implements TopBarUserBlockDataApi { @Override public TopBarUserBlock extendData(TopBarUserBlock data) { //例如增加一个菜单, PamirsDemo.MODEL_MODEL: 模型。 MenuuiMenu31f22466735a4abe8e0544b428ed88ac：viewAction的name。 Action demoViewAction =…

  yexiu

  2024年7月4日

  1.5K000
• 代码实践

  字段类型之关系描述的特殊场景(常量关联)

  场景概述 【字段类型之关系与引用】一文中已经描述了各种关系字段的常规写法，还有一些特殊场景如：关系映射中存在常量，或者M2M中间表是大于两个字段构成。 场景描述 1、PetTalent模型增加talentType字段2、PetItem与PetTalent的多对多关系增加talentType（达人类型），3、PetItemRelPetTalent中间表维护petItemId、petTalentId以及talentType，PetDogItem和PetCatItem分别重写petTalents字段，关系中增加常量描述。示意图如下： 实际操作步骤 Step1 新增 TalentTypeEnum package pro.shushi.pamirs.demo.api.enumeration; import pro.shushi.pamirs.meta.annotation.Dict; import pro.shushi.pamirs.meta.common.enmu.BaseEnum; @Dict(dictionary = TalentTypeEnum.DICTIONARY,displayName = "达人类型") public class TalentTypeEnum extends BaseEnum<TalentTypeEnum,Integer> { public static final String DICTIONARY ="demo.TalentTypeEnum"; public final static TalentTypeEnum DOG =create("DOG",1,"狗达人","狗达人"); public final static TalentTypeEnum CAT =create("CAT",2,"猫达人","猫达人"); } Step2 PetTalent模型增加talentType字段 package pro.shushi.pamirs.demo.api.model; import pro.shushi.pamirs.demo.api.enumeration.TalentTypeEnum; import pro.shushi.pamirs.meta.annotation.Field; import pro.shushi.pamirs.meta.annotation.Model; @Model.model(PetTalent.MODEL_MODEL) @Model(displayName = "宠物达人",summary="宠物达人",labelFields ={"name"}) public class PetTalent extends AbstractDemoIdModel{ public static final String MODEL_MODEL="demo.PetTalent"; @Field(displayName = "达人") private String name; @Field(displayName = "达人类型") private TalentTypeEnum talentType; } Step3 修改PetItem的petTalents字段，在关系描述中增加talentType（达人类型） @Field.many2many(relationFields = {"petItemId"},referenceFields = {"petTalentId","talentType"},through = PetItemRelPetTalent.MODEL_MODEL ) @Field.Relation(relationFields = {"id"}, referenceFields = {"id","talentType"}) @Field(displayName = "推荐达人",summary = "推荐该商品的达人们") private List<PetTalent> petTalents; Step4 PetDogItem增加petTalents字段，重写父类PetItem的关系描述 talentType配置为常量，填入枚举的值 增加domain描述用户页面选择的时候自动过滤出特定类型的达人，RSQL用枚举的name @Field(displayName = "推荐达人") @Field.many2many( through = "PetItemRelPetTalent", relationFields = {"petItemId"}, referenceFields = {"petTalentId","talentType"} ) @Field.Relation(relationFields = {"id"}, referenceFields = {"id", "#1#"}, domain = " talentType == DOG") private List<PetTalent> petTalents; Step5 PetCatItem增加petTalents字段，重写父类PetItem的关系描述 talentType配置为常量，填入枚举的值 增加domain描述用户页面选择的时候自动过滤出特定类型的达人，RSQL用枚举的name @Field(displayName = "推荐达人") @Field.many2many( through = "PetItemRelPetTalent", relationFields = {"petItemId"}, referenceFields = {"petTalentId","talentType"} ) @Field.Relation(relationFields = {"id"}, referenceFields = {"id", "#2#"}, domain = " talentType == CAT") private List<PetTalent> petTalents; Step6 PetCatItem增加petTalents字段，many2one关系示例 talentType配置为常量，填入枚举的值 增加domain描述用户页面选择的时候自动过滤出特定类型的达人，RSQL用枚举的name @Model.model(PetPet.MODEL_MODEL) @Model(displayName…

  望闲

  2024年5月25日

  1.6K000
• 后端

  函数之异步执行

  总体介绍 异步任务是非常常见的一种开发模式，它在分布式的开发模式中有很多应用场景如： 高并发场景中，我们一般采用把长流程切短，用异步方式去掉可以异步的非关键功能，缩小主流程响应时间，提升用户体验 异构系统的集成调用，通过异步任务完成解耦与自动重试 分布式系统最终一致性的可选方案 本文将介绍oinone是如何结合Spring+TbSchedule来完成异步任务 构建第一个异步任务 新建PetShopService和PetShopServiceImpl 1、 新建PetShopService定义updatePetShops方法 package pro.shushi.pamirs.demo.api.service; import pro.shushi.pamirs.demo.api.model.PetShop; import pro.shushi.pamirs.meta.annotation.Fun; import pro.shushi.pamirs.meta.annotation.Function; import java.util.List; @Fun(PetShopService.FUN_NAMESPACE) public interface PetShopService { String FUN_NAMESPACE = "demo.PetShop.PetShopService"; @Function void updatePetShops(List<PetShop> petShops); } 2、PetShopServiceImpl实现PetShopService接口并在updatePetShops增加@XAsync注解 package pro.shushi.pamirs.demo.core.service; import org.springframework.stereotype.Component; import pro.shushi.pamirs.demo.api.model.PetShop; import pro.shushi.pamirs.demo.api.service.PetShopService; import pro.shushi.pamirs.meta.annotation.Fun; import pro.shushi.pamirs.meta.annotation.Function; import pro.shushi.pamirs.trigger.annotation.XAsync; import java.util.List; @Fun(PetShopService.FUN_NAMESPACE) @Component public class PetShopServiceImpl implements PetShopService { @Override @Function @XAsync(displayName = "异步批量更新宠物商店",limitRetryNumber = 3,nextRetryTimeValue = 60) public void updatePetShops(List<PetShop> petShops) { new PetShop().updateBatch(petShops); } } a. displayName = "异步批量更新宠物商店"，定义异步任务展示名称b. limitRetryNumber = 3，定义任务失败重试次数，，默认：-1不断重试c. nextRetryTimeValue = 60，定义任务失败重试的时间数，默认：3d. nextRetryTimeUnit，定义任务失败重试的时间单位，默认：TimeUnitEnum.SECONDe. delayTime，定义任务延迟执行的时间数，默认：0f. delayTimeUnit，定义任务延迟执行的时间单位，默认：TimeUnitEnum.SECOND 修改PetShopBatchUpdateAction调用异步任务 引入PetShopService 修改conform方法，调用petShopService.updatePetShops方法 package pro.shushi.pamirs.demo.core.action; @Model.model(PetShopBatchUpdate.MODEL_MODEL) @Component public class PetShopBatchUpdateAction { @Autowired private PetShopService petShopService; @Action(displayName = "确定",bindingType = ViewTypeEnum.FORM,contextType = ActionContextTypeEnum.SINGLE) public PetShopBatchUpdate conform(PetShopBatchUpdate data){ List<PetShop> shops = ArgUtils.convert(PetShopProxy.MODEL_MODEL, PetShop.MODEL_MODEL,proxyList); // 调用异步任务 petShopService.updatePetShops(shops); }); return data; } } 不同应用如何隔离执行单元 在schedule跟模块部署一起的时候，多模块独立boot的情况下，需要做必要的配置。如果schedule独立部署则没有必要，因为全部走远程，不存在类找不到的问题 通过配置pamirs.zookeeper.rootPath，确保两组机器都能覆盖所有任务分片，这样不会漏数据 通过pamirs.event.schedule.ownSign来隔离。确保两组机器只取各自产生的数据，这样不会重复执行数据 pamirs: zookeeper: zkConnectString: 127.0.0.1:2181 zkSessionTimeout: 60000 rootPath: /demo event: enabled: true schedule: enabled: true ownSign: demo rocket-mq: namesrv-addr: 127.0.0.1:9876

  望闲

  2024年5月25日

  1.2K000
• 后端

  自定义数据权限拦截处理

  业务场景 公司给员工对哪些模块有访问权限，这个时候就需要在员工访问模块表的时候做数据过滤， 解决方案 我们可以通过平台提供的数据过滤占位符解决这个问题，新建一条数据行权限，过滤语句条件是占位符，再编写占位符的解析逻辑 1.初始化权限基础数据 package pro.shushi.pamirs.demo.core.init; import com.google.common.collect.Lists; import org.springframework.core.annotation.Order; import org.springframework.stereotype.Component; import pro.shushi.pamirs.auth.api.constants.AuthConstants; import pro.shushi.pamirs.auth.api.enmu.AuthGroupTypeEnum; import pro.shushi.pamirs.auth.api.enmu.PermissionDataSourceEnum; import pro.shushi.pamirs.auth.api.enmu.PermissionTypeEnum; import pro.shushi.pamirs.auth.api.model.AuthGroup; import pro.shushi.pamirs.auth.api.model.AuthRole; import pro.shushi.pamirs.auth.api.model.ResourcePermission; import pro.shushi.pamirs.boot.base.model.UeModule; import pro.shushi.pamirs.boot.common.api.command.AppLifecycleCommand; import pro.shushi.pamirs.boot.common.api.init.InstallDataInit; import pro.shushi.pamirs.boot.common.api.init.UpgradeDataInit; import pro.shushi.pamirs.demo.api.DemoModule; import pro.shushi.pamirs.demo.core.placeholder.EmployeeModulePlaceholder; import pro.shushi.pamirs.framework.common.utils.ObjectUtils; import pro.shushi.pamirs.meta.annotation.fun.extern.Slf4j; import pro.shushi.pamirs.meta.domain.module.ModuleDefinition; import java.util.Collections; import java.util.List; @Slf4j @Component @Order(0) public class DemoModuleBizInit implements InstallDataInit, UpgradeDataInit { @Override public List<String> modules() { return Collections.singletonList(DemoModule.MODULE_MODULE); } @Override public int priority() { return 0; } @Override public boolean init(AppLifecycleCommand command, String version) { this.initAuth(); return true; } @Override public boolean upgrade(AppLifecycleCommand command, String version, String existVersion) { this.initAuth(); return true; } private void initAuth() { AuthGroup authGroup = new AuthGroup(); authGroup.setName("测试权限组") .setDisplayName("测试权限组") .setType(AuthGroupTypeEnum.RUNTIME) .setActive(true); authGroup.createOrUpdate(); AuthRole authRole = new AuthRole(); authRole.setCode("TEST_ROLE_1") .setName("测试角色") .setRoleTypeCode(AuthConstants.ROLE_SYSTEM_TYPE_CODE) .setPermissionDataSource(PermissionDataSourceEnum.CUSTOM) .setActive(true); authRole.createOrUpdate(); authRole.setGroups(Lists.newArrayList(authGroup)); authRole.fieldSave(AuthRole::getGroups); ResourcePermission authPermission = new ResourcePermission(); authPermission.setName("测试模块权限过滤") .setDomainExp(EmployeeModulePlaceholder.PLACEHOLDER) .setModel(ModuleDefinition.MODEL_MODEL) .setPermRead(true) .setPermRun(true) .setPermissionType(PermissionTypeEnum.ROW) .setPermissionDataSource(PermissionDataSourceEnum.CUSTOM) .setCanShow(true) .setActive(true); ResourcePermission authPermission2 = ObjectUtils.clone(authPermission); authPermission2.setName("测试ue模块权限过滤").setModel(UeModule.MODEL_MODEL); authGroup.setPermissions(Lists.newArrayList(authPermission, authPermission2)); authGroup.fieldSave(AuthGroup::getPermissions); } } 这里演示的module表比较特殊，需要同时设置ModuleDefinition和UeModule这2个模型做数据过滤 2.编写占位符拦截替换逻辑 package pro.shushi.pamirs.demo.core.placeholder; import org.springframework.stereotype.Component; import pro.shushi.pamirs.user.api.AbstractPlaceHolderParser; @Component public class EmployeeModulePlaceholder extends AbstractPlaceHolderParser { public static final String PLACEHOLDER = "${employeeModulePlaceholder}"; protected String value() { // TODO…

  nation

  2023年11月24日

  1.0K000