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• 代码实践

  IWrapper、QueryWrapper和LambdaQueryWrapper使用

  条件更新updateByWrapper 通常我们在更新的时候new一个对象出来在去更新，减少更新的字段 Integer update = new DemoUser().updateByWrapper(new DemoUser().setFirstLogin(Boolean.FALSE), Pops.<DemoUser>lambdaUpdate().from(DemoUser.MODEL_MODEL).eq(IdModel::getId, userId) 使用基础模型的updateById方法更新指定字段的方法： new 一下update对象出来，更新这个对象。 WorkflowUserTask userTaskUp = new WorkflowUserTask(); userTaskUp.setId(userTask.getId()); userTaskUp.setNodeContext(json); userTaskUp.updateById(); 条件删除updateByWrapper public List<T> delete(List<T> data) { List<Long> petTypeIdList = new ArrayList(); for(T item:data){ petTypeIdList.add(item.getId()); } Models.data().deleteByWrapper(Pops.<PetType>lambdaQuery().from(PetType.MODEL_MODEL).in(PetType::getId,petTypeIdList)); return data; } 构造条件查询数据 示例1： LambdaQueryWrapper拼接查询条件 private void queryPetShops() { LambdaQueryWrapper<PetShop> query = Pops.<PetShop>lambdaQuery(); query.from(PetShop.MODEL_MODEL); query.setSortable(Boolean.FALSE); query.orderBy(true, true, PetShop::getId); List<PetShop> petShops2 = new PetShop().queryList(query); System.out.printf(petShops2.size() + ""); } 示例2： IWrapper拼接查询条件 private void queryPetShops() { IWrapper<PetShop> wrapper = Pops.<PetShop>lambdaQuery() .from(PetShop.MODEL_MODEL).eq(PetShop::getId,1L); List<PetShop> petShops4 = new PetShop().queryList(wrapper); System.out.printf(petShops4.size() + ""); } 示例3： QueryWrapper拼接查询条件 private void queryPetShops() { //使用Lambda获取字段名，防止后面改字段名漏改 String nameField = LambdaUtil.fetchFieldName(PetTalent::getName); //使用Lambda获取Clumon名，防止后面改字段名漏改 String nameColumn = PStringUtils.fieldName2Column(nameField); QueryWrapper<PetShop> wrapper2 = new QueryWrapper<PetShop>().from(PetShop.MODEL_MODEL) .eq(nameColumn, "test"); List<PetShop> petShops5 = new PetShop().queryList(wrapper2); System.out.printf(petShops5.size() + ""); } IWrapper转为LambdaQueryWrapper @Function.Advanced(type= FunctionTypeEnum.QUERY) @Function.fun(FunctionConstants.queryPage) @Function(openLevel = {FunctionOpenEnum.API}) public Pagination<PetShopProxy> queryPage(Pagination<PetShopProxy> page, IWrapper<PetShopProxy> queryWrapper) { LambdaQueryWrapper<PetShopProxy> wrapper = ((QueryWrapper<PetShopProxy>) queryWrapper).lambda(); // 非存储字段从QueryData中获取 Map<String, Object> queryData = queryWrapper.getQueryData(); if (null != queryData && !queryData.isEmpty()) { String codes = (String) queryData.get("codes"); if (org.apache.commons.lang3.StringUtils.isNotBlank(codes)) { wrapper.in(PetShopProxy::getCode, codes.split(",")); } } return new PetShopProxy().queryPage(page, wrapper); }

  望闲

  2024年5月25日

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• 后端

  【OpenGauss】后端部署使用OpenGauss高斯数据库

  Gauss数据库配置 适配版本 4.7.8.3之后的版本 配置步骤 Maven配置 去华为官网下周驱动包：gsjdbc4.jar；https://support.huaweicloud.com/mgtg-dws/dws_01_0032.html <dependency> <groupId>org.postgresql</groupId> <artifactId>gsjdbc</artifactId> <version>4</version> <scope>system</scope> <!– 下面两种方式都可以–> <systemPath>${pom.basedir}/libs/gsjdbc4.jar</systemPath> <!–<systemPath>/Users/wangxian/java-tools/guassdb/gsjdbc4.jar</systemPath>–> </dependency> 导入 scope 为 system 的包，spring 编译插件需要增加 includeSystemScope: true 配置。 <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <includeSystemScope>true</includeSystemScope> </configuration> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> JDBC连接配置 pamirs: datasource: pamirs: type: com.alibaba.druid.pool.DruidDataSource driverClassName: org.postgresql.Driver url: jdbc:postgresql://127.0.0.1:5432/pamirs?currentSchema=demo username: XXXXXX password: XXXXXX initialSize: 5 maxActive: 200 minIdle: 5 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true asyncInit: true base: type: com.alibaba.druid.pool.DruidDataSource driverClassName: org.postgresql.Driver url: jdbc:postgresql://127.0.0.1:5432/pamirs?currentSchema=demo_base username: XXXXXX password: XXXXXX initialSize: 5 maxActive: 200 minIdle: 5 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true asyncInit: true 连接url配置 点击查看官方文档：官方文档 url格式 jdbc:postgresql://${host}:${port}/${database}?currentSchema=${schema} 在pamirs连接配置时，${database}和${schema}必须完整配置，不可缺省。 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 pamirs方言配置 pamirs: dialect: ds: base: type: GaussDB version: 5 majorVersion: 5.0.1 pamirs: type: GaussDB version: 5 majorVersion: 5.0.1 数据库版本 type version majorVersion 5.x GaussDB 5 5.0.1 PS：由于方言开发环境为5.0.1版本，其他类似版本（5.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: GaussDB version: 5 major-version: 5.0.1 type version majorVersion GaussDB 5 5.0.1 PS：由于schedule的方言在多个版本中并无明显差异，目前仅提供一种方言配置。 其他配置 逻辑删除的值配置 pamirs: mapper: global: table-info: logic-delete-value: (EXTRACT(epoch FROM CURRENT_TIMESTAMP) * 1000000 + EXTRACT(MICROSECONDS FROM CURRENT_TIMESTAMP))::bigint Gauss数据库用户初始化及授权 — init root…

  望闲

  2024年3月27日

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• 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

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• 后端

  JSON转换工具类

  JSON转换工具类 JSON转对象 pro.shushi.pamirs.meta.util.JsonUtils JSON转模型 pro.shushi.pamirs.framework.orm.json.PamirsDataUtils

  oinone

  2023年11月1日

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• 后端

  自定义审批方式、自定义审批节点名称

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  yakir

  2023年12月5日

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