【后端】项目开发后端知识要点地图

相关推荐

• 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

  1.1K000
• 后端

  【OceanBase】后端部署使用 OceanBase 数据库（海扬/OB）

  OceanBase 数据库配置 驱动配置 Maven配置（4.2.5.3版本可用） <oceanbase.version>2.4.14</oceanbase.version> <dependency> <groupId>com.oceanbase</groupId> <artifactId>oceanbase-client</artifactId> <version>${oceanbase.version}</version> </dependency> PS: oceanbase 驱动必须使用 2.4.5 版本或以上，低于此版本的驱动无法使用自增ID功能，无法正常启动。点击查看官方JDBC版本发布记录 JDBC连接配置 OceanBase – Oracle 版 pamirs: datasource: base: type: com.alibaba.druid.pool.DruidDataSource driverClassName: com.alipay.oceanbase.jdbc.Driver url: jdbc:oceanbase://10.xxx.xxx.xxx:1001/BASE?useServerPrepStmts=true&useOraclePrepareExecute=true&defaultFetchSize=4096 username: xxxxxx password: xxxxxx validConnectionCheckerClassName: com.alibaba.druid.pool.vendor.OracleValidConnectionChecker validationQuery: SELECT 1 FROM DUAL OceanBase – MySQL 版 pamirs: datasource: base: type: com.alibaba.druid.pool.DruidDataSource driverClassName: com.alipay.oceanbase.jdbc.Driver url: jdbc:oceanbase://10.xxx.xxx.xxx:1001/base username: xxxxxx password: xxxxxx 连接 URL 配置 点击查看官方JDBC连接配置说明 URL 格式（OceanBase – Oracle 版） jdbc:oceanbase://${host}:${port}/${database}?useServerPrepStmts=true&useOraclePrepareExecute=true&defaultFetchSize=4096 在jdbc连接配置时，useServerPrepStmts=true&useOraclePrepareExecute=true 必须配置，否则自增主键无法正常使用。 defaultFetchSize=4096 意味着在使用服务端预处理时，游标每次获取的结果集行数，驱动默认值为 10，在进行大量数据获取时会出现卡顿的现象，因此推荐使用 4096 作为其结果集大小。过大可能会导致 OOM，过小可能还是会出现卡顿，该值需要按实际情况进行配置。 其他连接参数如需配置，可自行查阅相关资料进行调优。 方言配置（OceanBase – Oracle 版） PS：OceanBase – MySQL 版无需配置方言，只需修改数据库连接即可正常使用。 pamirs方言配置 pamirs: dialect: ds: base: type: OceanBase version: 4.2.5.3 major-version: oracle-4.2 pamirs: type: OceanBase version: 4.2.5.3 major-version: oracle-4.2 plus: configuration: jdbc-type-for-null: "NULL" using-model-as-property: true using-statement-handler-dialect: true mapper: batch: collectionCommit default-batch-config: read: 500 write: 100 数据库版本 type version majorVersion 4.2.5.3 OceanBase 4.2.5.3 oracle-4.2 PS：由于方言开发环境为4.2.5.3版本，其他类似版本（4.x）原则上不会出现太大差异，如出现其他版本无法正常支持的，可在文档下方留言。 schedule方言配置 pamirs: event: enabled: true schedule: enabled: true dialect: type: Oracle version: 12.2 major-version: 12c type version majorVersion Oracle 12.2 12c PS：由于 schedule 的方言与 Oracle 数据库并无明显差异，OceanBase 数据库可以直接使用 Oracle 数据库方言。 其他配置（OceanBase – Oracle 版） 逻辑删除的值配置 pamirs: mapper: global: table-info: logic-delete-value: (CAST(SYSTIMESTAMP AS DATE) – TO_DATE('1970-01-01 08:00:00', 'YYYY-MM-DD HH24:MI:SS')) * 8640000000000

  张博昊

  2025年7月21日

  790000
• 后端

  平台配置日志输出和推送到APM与LogStash

  场景描述 目前设计器镜像启动后日志文件为out.log，是启动脚本中定向输出了(>>)out.log文件。实际项目可能： 日志输出到特定目录的特定文件名中 指定以日志保留策略(单个文件大小和文件保留个数) 日志输出到APM工具中(如skywalking) 日志推送到LogStash 日志自定义输出 不定向输出，采用自己配置的方式，与标准的SpringBoot工程配置日志一样。两种方式（都是Spring提供的方式）： 方式一 bootstrap.yml 里面可以按profiles指定logback的配置文件，具体文件名和文件输入在logback里面进行配置，跟通用的logback配置一致. 例如： logging: config: classpath:logback-pre.xml 方式二 resources的根目录，直接配置 logback-spring.xml， 启动会自动加载。 日志自定义场景 配置日志推送到LogStash <!–配置日志推送到LogStash–> <contextListener class="pro.shushi.pamirs.demo.core.config.DemoLogbackFiledConfig"/> <appender name="LogStash" class="net.logstash.logback.appender.LogstashTcpSocketAppender"> <destination>127.0.0.1:4560</destination> <!– encoder必须配置,有多种可选 –> <encoder charset="UTF-8" class="net.logstash.logback.encoder.LogstashEncoder"> <!– SkyWalking插件, log加tid–> <provider class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.logstash.TraceIdJsonProvider" /> <!–在生成的json中会加这些字段–> <customFields> {"app.name":"pamirs-demo", "app.type":"Microservice", "platform":"pamirs", "env":"dev"} </customFields> <timeZone>Asia/Shanghai</timeZone> <writeVersionAsInteger>true</writeVersionAsInteger> <providers> <pattern> <pattern> <!–动态的变量–> { "ip": "%{ip}", "server.name": "%{server.name}", "logger_name": "%logger" } </pattern> </pattern> </providers> </encoder> </appender> skywalking的日志rpc上传 <!– skywalking的日志rpc上传 –> <appender name="SkyWalkingLogs" class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.log.GRPCLogClientAppender"> <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder"> <layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.mdc.TraceIdMDCPatternLogbackLayout"> <Pattern>${CONSOLE_LOG_PATTERN}</Pattern> </layout> </encoder> </appender> 完整的代码示例 Logback自定义字段 package pro.shushi.pamirs.demo.core.config; import ch.qos.logback.classic.Level; import ch.qos.logback.classic.Logger; import ch.qos.logback.classic.LoggerContext; import ch.qos.logback.classic.spi.LoggerContextListener; import ch.qos.logback.core.Context; import ch.qos.logback.core.spi.ContextAwareBase; import ch.qos.logback.core.spi.LifeCycle; import java.net.InetAddress; import java.net.UnknownHostException; /** * Logback自定义字段 * * @author wx@shushi.pro * @date 2024/4/17 */ public class DemoLogbackFiledConfig extends ContextAwareBase implements LoggerContextListener, LifeCycle { private boolean started = false; @Override public boolean isResetResistant() { return false; } @Override public void onStart(LoggerContext loggerContext) { } @Override public void onReset(LoggerContext loggerContext) { } @Override public void onStop(LoggerContext loggerContext) { } @Override public void onLevelChange(Logger logger, Level level) { } @Override public void start() { if (started) { return; } Context context = getContext();…

  望闲

  2024年5月18日

  1.6K000
• 后端

  导入设计数据时dubbo超时导入失败

  问题描述 在本地启动导入设计数据的工程时，会出现dubbo调用超时导致设计数据无法完整导入的问题。 org.apache.dubbo.remoting.TimeoutException 产生原因 pom中的包依赖出现问题，导致没有使用正确的远程服务。 本地可能出现的异常报错堆栈信息如下： xception in thread "fixed-1-thread-10" PamirsException level: ERROR, code: 10100025, type: SYSTEM_ERROR, msg: 函数执行错误, extra:, extend: null at pro.shushi.pamirs.meta.common.exception.PamirsException$Builder.errThrow(PamirsException.java:190) at pro.shushi.pamirs.framework.faas.fun.manage.ManagementAspect.around(ManagementAspect.java:118) at sun.reflect.GeneratedMethodAccessor498.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644) at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633) at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691) at pro.shushi.pamirs.framework.orm.DefaultWriteApi$$EnhancerBySpringCGLIB$$b4cea2b4.createOrUpdateBatchWithResult(<generated>) at pro.shushi.pamirs.meta.base.manager.data.OriginDataManager.createOrUpdateBatchWithResult(OriginDataManager.java:161) at pro.shushi.pamirs.meta.base.manager.data.OriginDataManager.createOrUpdateBatch(OriginDataManager.java:152) at pro.shushi.pamirs.ui.designer.service.installer.UiDesignerInstaller.lambda$install$0(UiDesignerInstaller.java:42) at pro.shushi.pamirs.core.common.function.AroundRunnable.run(AroundRunnable.java:26) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.dubbo.rpc.RpcException: Failed to invoke the method createOrUpdateBatchWithResult in the service org.apache.dubbo.rpc.service.GenericService. Tried 1 times of the providers [192.168.0.123:20880] (1/1) from the registry 127.0.0.1:2181 on the consumer 192.168.0.123 using the dubbo version 2.7.22. Last error is: Invoke remote method timeout. method: $invoke, provider: dubbo://192.168.0.123:20880/ui.designer.UiDesignerViewLayout.oio.defaultWriteApi?anyhost=true&application=pamirs-demo&application.version=1.0.0&check=false&deprecated=false&dubbo=2.0.2&dynamic=true&generic=true&group=pamirs&interface=ui.designer.UiDesignerViewLayout.oio.defaultWriteApi&metadata-type=remote&methods=*&payload=104857600&pid=69748&qos.enable=false&register.ip=192.168.0.123&release=2.7.15&remote.application=pamirs-test&retries=0&serialization=pamirs&service.name=ServiceBean:pamirs/ui.designer.UiDesignerViewLayout.oio.defaultWriteApi:1.0.0&side=consumer&sticky=false&timeout=5000&timestamp=1701136088893&version=1.0.0, cause: org.apache.dubbo.remoting.TimeoutException: Waiting server-side response timeout by scan timer. start time: 2023-11-28 10:23:05.835, end time: 2023-11-28 10:23:10.856, client elapsed: 695 ms, server elapsed: 4326 ms, timeout: 5000 ms, request: Request [id=0, version=2.0.2, twoway=true, event=false, broken=false, data=null], channel: /192.168.0.123:49449 -> /192.168.0.123:20880 at org.apache.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:110) at org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:265) at org.apache.dubbo.rpc.cluster.interceptor.ClusterInterceptor.intercept(ClusterInterceptor.java:47) at org.apache.dubbo.rpc.cluster.support.wrapper.AbstractCluster$InterceptorInvokerNode.invoke(AbstractCluster.java:92) at org.apache.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:98) at org.apache.dubbo.registry.client.migration.MigrationInvoker.invoke(MigrationInvoker.java:170) at org.apache.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:96) at org.apache.dubbo.common.bytecode.proxy0.$invoke(proxy0.java) at pro.shushi.pamirs.framework.faas.distribution.computer.RemoteComputer.compute(RemoteComputer.java:124) at pro.shushi.pamirs.framework.faas.FunEngine.run(FunEngine.java:80) at pro.shushi.pamirs.distribution.faas.remote.spi.service.RemoteFunctionHelper.run(RemoteFunctionHelper.java:68) at pro.shushi.pamirs.framework.faas.fun.manage.ManagementAspect.around(ManagementAspect.java:109) … 20 more Caused…

  张博昊

  2023年11月28日

  1.1K000
• 后端

  项目中工作流引入和流程触发

  目录 1. 使用工作流需要依赖的包和设置2. 触发方式2.1 自动触发方式2.2 触发方式 1.使用工作流需要依赖的包和设置 1.1 工作流需要依赖的模块 需在pom.xml中增加workflow、sql-record和trigger相关模块的依赖 workflow：工作流运行核心模块 sql-record：监听流程发布以后对应模型的增删改监听 trigger：异步任务调度模块 <dependency> <groupId>pro.shushi.pamirs.workflow</groupId> <artifactId>pamirs-workflow-api</artifactId> </dependency> <dependency> <groupId>pro.shushi.pamirs.workflow</groupId> <artifactId>pamirs-workflow-core</artifactId> </dependency> <dependency> <groupId>pro.shushi.pamirs.core</groupId> <artifactId>pamirs-sql-record-core</artifactId> </dependency> <dependency> <groupId>pro.shushi.pamirs.core</groupId> <artifactId>pamirs-trigger-core</artifactId> </dependency> <dependency> <groupId>pro.shushi.pamirs.core</groupId> <artifactId>pamirs-trigger-bridge-tbschedule</artifactId> </dependency> 在application.yml中增加对应模块的依赖以及sql-record路径以及其他相关设置 pamirs: … record: sql: #改成自己路径 store: /opt/pamirs/logs … boot: init: true sync: true modules: … – sql_record – trigger – workflow … sharding: define: data-sources: ds: pamirs models: "[trigger.PamirsSchedule]": tables: 0..13 event: enabled: true schedule: enabled: true # ownSign区分不同应用 ownSign: demo rocket-mq: # enabled 为 false情况不用配置 namesrv-addr: 192.168.6.2:19876 trigger: auto-trigger: true 2.触发方式 2.1自动触发方式 在流程设计器中设置触发方式，如果设置了代码触发方式则不会自动触发 2.2代码调用方式触发 2.2.1.再流程设计器中触发设置中，设置为是否人工触发设置为是 2.2.2.查询数据库获取该流程的编码 2.2.3.在代码中调用 /** * 触发⼯作流实例 */ private Boolean startWorkflow(WorkflowD workflowD, IdModel modelData) { WorkflowDefinition workflowDefinition = new WorkflowDefinition().queryOneByWrapper( Pops.<WorkflowDefinition>lambdaQuery() .from(WorkflowDefinition.MODEL_MODEL) .eq(WorkflowDefinition::getWorkflowCode, workflowD.getCode()) .eq(WorkflowDefinition::getActive, 1) ); if (null == workflowDefinition) { // 流程没有运⾏实例 return Boolean.FALSE; } String model = Models.api().getModel(modelData); //⼯作流上下⽂ WorkflowDataContext wdc = new WorkflowDataContext(); wdc.setDataType(WorkflowVariationTypeEnum.ADD); wdc.setModel(model); wdc.setWorkflowDefinitionDefinition(workflowDefinition.parseContent()); wdc.setWorkflowDefinition(workflowDefinition); wdc.setWorkflowDefinitionId(workflowDefinition.getId()); IdModel copyData = KryoUtils.get().copy(modelData); // ⼿动触发创建的动作流,将操作⼈设置为当前⽤户,作为流程的发起⼈ copyData.setCreateUid(PamirsSession.getUserId()); copyData.setWriteUid(PamirsSession.getUserId()); String jsonData = JsonUtils.toJSONString(copyData.get_d()); //触发⼯作流 新增时触发-onCreateManual 更新时触发-onUpdateManual Fun.run(WorkflowModelTriggerFunction.FUN_NAMESPACE, "onCreateManual", wdc, msgId, jsonData); return Boolean.TRUE; }

  数式-海波

  2023年11月7日

  1.5K003