环境运行时Jar版本控制
为了避免基于低代码定义产生的元数据错乱。因此产生了运行时Jar版本检查功能。
如果当前运行时依赖的Ja版本低于已安装版本，启动时会有如下类似信息提示：
依赖Jar版本-PgoBack=true 强制覆盖安装当前运行时版本
java -jar 方式
java -jar xxx.jar -PgoBack=true [其他参数]mvn spring-boot run 方式
mvn clean compile spring-boot:run -Dspring-boot.run.arguments="-PgoBack=true [其他参数]"Oinone社区 作者：yakir原创文章，如若转载，请注明出处：https://doc.oinone.top/backend/20619.html
访问Oinone官网:https://www.oinone.top获取数式Oinone低代码应用平台体验
有些业务场景需要查询两张表的数据，这时候就需要用到联表查询。下面将介绍两种方式进行联表查询。 场景：A模型页面，查询条件中包含B模型字段 模型A @Model.model(YesOne.MODEL_MODEL) @Model(displayName = "YesOne", summary = "YesOne") public class YesOne extends IdModel { public static final String MODEL_MODEL = "top.YesOne"; @Field.Integer @Field(displayName = "YesId") private Long yesId; @Field.String @Field(displayName = "名字") private String name; @Field.String @Field(displayName = "科目名字") private String professionalName; @Field(displayName = "关联YesTwo") @Field.many2one @Field.Relation(relationFields = {"yesId"},referenceFields = {"id"}) private YesTwo yesTwo; } 模型B @Model.model(YesTwo.MODEL_MODEL) @Model(displayName = "YesTwo", summary = "YesTwo") public class YesTwo extends IdModel { public static final String MODEL_MODEL = "top.YesTwo"; @Field.Integer @Field(displayName = "科目id") private Long professionalId; @Field.String @Field(displayName = "科目名字") private String professionalName; } 1. 使用in的方式查询 通过B模型的查询条件查询出符合条件的所有数据ID，再根据这个ID去A模型里面查询出所需的数据。 @Function.Advanced(displayName = "查询列表", type = FunctionTypeEnum.QUERY, category = FunctionCategoryEnum.QUERY_PAGE, managed = true) @Function(openLevel = {FunctionOpenEnum.LOCAL, FunctionOpenEnum.REMOTE, FunctionOpenEnum.API}) public Pagination<YesOne> queryPage(Pagination<YesOne> page, IWrapper<YesOne> queryWrapper) { String professionalName = (String) queryWrapper.getQueryData().get("professionalName"); if (StringUtils.isNotBlank(professionalName)) { List<Long> yesTwoId = new YesTwo().queryList(Pops.<YesTwo>lambdaQuery() .from(YesTwo.MODEL_MODEL) .eq(YesTwo::getProfessionalName, professionalName)) .stream().map(YesTwo::getId) .collect(Collectors.toList()); LambdaQueryWrapper<YesOne> wq = Pops.<YesOne>lambdaQuery().from(YesOne.MODEL_MODEL); if (CollectionUtils.isNotEmpty(yesTwoId)) { wq.in(YesOne::getYesId, yesTwoId); } return new YesOne().queryPage(page, wq); } return new YesOne().queryPage(page, queryWrapper); } 2. 使用mapper的方式查询 利用sql的方式去直接查询出结果。使用联表查询的方式查询 @Autowired private YesOneQueryMapper yesOneQueryMapper; @Function.Advanced(displayName = "查询列表", type = FunctionTypeEnum.QUERY, category = FunctionCategoryEnum.QUERY_PAGE, managed = true) @Function(openLevel = {FunctionOpenEnum.LOCAL,…
平台提供了很多的表达式，如果这些表达式不满足场景？那我们应该如何新增表达式去满足项目的需求？目前平台支持的表达式内置函数，参考 1. 扩展表达式的场景 注解@Validation的rule字段支持配置表达式校验如果需要判断入参List类型字段中的某一个参数进行NULL校验，发现平台的内置函数不支持该场景的配置，这里就可以通过平台的机制，对内置函数进行扩展。 常见的一些代码场景，如下： package pro.shushi.pamirs.demo.core.action; ……引用类 @Model.model(PetShopProxy.MODEL_MODEL) @Component public class PetShopProxyAction extends DataStatusBehavior<PetShopProxy> { @Override protected PetShopProxy fetchData(PetShopProxy data) { return data.queryById(); } @Validation(ruleWithTips = { @Validation.Rule(value = "!IS_BLANK(data.code)", error = "编码为必填项"), @Validation.Rule(value = "LEN(data.name) < 128", error = "名称过长，不能超过128位"), }) @Action(displayName = "启用") @Action.Advanced(invisible="!(activeRecord.code !== undefined && !IS_BLANK(activeRecord.code))") public PetShopProxy dataStatusEnable(PetShopProxy data){ data = super.dataStatusEnable(data); data.updateById(); return data; } ……其他代码 } 2. 新建一个自定义表达式的函数 校验入参如果是个集合对象的情况下，单个对象的某个字段如果为空，返回false的函数。 例子：新建一个CustomCollectionFunctions类 package xxx.xxx.xxx; import org.apache.commons.collections4.CollectionUtils; import org.springframework.stereotype.Component; import pro.shushi.pamirs.meta.annotation.Fun; import pro.shushi.pamirs.meta.annotation.Function; import pro.shushi.pamirs.meta.common.constants.NamespaceConstants; import pro.shushi.pamirs.meta.util.FieldUtils; import java.util.List; import static pro.shushi.pamirs.meta.enmu.FunctionCategoryEnum.COLLECTION; import static pro.shushi.pamirs.meta.enmu.FunctionLanguageEnum.JAVA; import static pro.shushi.pamirs.meta.enmu.FunctionOpenEnum.LOCAL; import static pro.shushi.pamirs.meta.enmu.FunctionSceneEnum.EXPRESSION; /** * 自定义内置函数 */ @Fun(NamespaceConstants.expression) @Component public class CustomCollectionFunctions { /** * LIST_FIELD_NULL 就是我们自定义的表达式，不能与已经存在的表达式重复！！！ * * @param list * @param field * @return */ @Function.Advanced( displayName = "校验集成的参数是否为null", language = JAVA, builtin = true, category = COLLECTION ) @Function.fun("LIST_FIELD_NULL") @Function(name = "LIST_FIELD_NULL", scene = {EXPRESSION}, openLevel = LOCAL, summary = "函数示例: LIST_FIELD_NULL(list,field)，函数说明: 传入一个对象集合，校验集合的字段是否为空" ) public Boolean listFieldNull(List list, String field) { if (null == list) { return false; } if (CollectionUtils.isEmpty(list)) { return false; } for (Object data : list) { Object value =…
验签工具类 PS：该验签方法仅在pamirs-core的5.0.16版本以上可正常使用 public class EipSignUtils { public static final String SIGN_METHOD_MD5 = "md5"; private static final String SIGN_METHOD_HMAC = "hmac"; private static final String SECRET_KEY_ALGORITHM = "HmacMD5"; private static final String MESSAGE_DIGEST_MD5 = "MD5"; public static String signTopRequest(Map<String, String> params, String secret, String signMethod) throws IOException { // 第一步：检查参数是否已经排序 String[] keys = params.keySet().toArray(new String[0]); Arrays.sort(keys); // 第二步：把所有参数名和参数值串在一起 StringBuilder query = new StringBuilder(); if (SIGN_METHOD_MD5.equals(signMethod)) { query.append(secret); } for (String key : keys) { String value = params.get(key); if (StringUtils.isNoneBlank(key, value)) { query.append(key).append(value); } } // 第三步：使用MD5/HMAC加密 byte[] bytes; if (SIGN_METHOD_HMAC.equals(signMethod)) { bytes = encryptHMAC(query.toString(), secret); } else { query.append(secret); bytes = encryptMD5(query.toString()); } // 第四步：把二进制转化为大写的十六进制(正确签名应该为32大写字符串，此方法需要时使用) return byte2hex(bytes); } private static byte[] encryptHMAC(String data, String secret) throws IOException { byte[] bytes; try { SecretKey secretKey = new SecretKeySpec(secret.getBytes(StandardCharsets.UTF_8), SECRET_KEY_ALGORITHM); Mac mac = Mac.getInstance(secretKey.getAlgorithm()); mac.init(secretKey); bytes = mac.doFinal(data.getBytes(StandardCharsets.UTF_8)); } catch (GeneralSecurityException e) { throw new IOException(e.toString(), e); } return bytes; } private static byte[] encryptMD5(String data) throws IOException { return encryptMD5(data.getBytes(StandardCharsets.UTF_8)); } private static byte[] encryptMD5(byte[] data) throws IOException { try { MessageDigest md = MessageDigest.getInstance(MESSAGE_DIGEST_MD5); return md.digest(data); } catch (NoSuchAlgorithmException e)…
总体描述 引入Oinone的搜索（即Channel模块）后，因错误的配置、缺少配置或者少引入一些Jar包，会出现一些报错。 问题1：启动报类JCTree找不到 具体现象 启动过程可能会出现报错：java.lang.NoClassDefFoundError: com/sun/tools/javac/tree/JCTree$JCExpression 产生原因 引入Channel模块后，启动过程中会扫描Class包找寻Enhance的注解，Pamirs底层有使用到jdk的tools中的类， com/sun/tools/javac/tree/JCTree$JCExpression 特定版本的jdk可能会缺少tools.jar导致启动失败 具体报错 at org.springframework.boot.loader.Launcher.launch(Launcher.java:107) [pamirs-venus-boot.jar:na] at org.springframework.boot.loader.Launcher.launch(Launcher.java:58) [pamirs-venus-boot.jar:na] at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:88) [pamirs-venus-boot.jar:na] Caused by: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: com/sun/tools/javac/tree/JCTree$JCExpression at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) ~[na:1.8.0_381] at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908) ~[na:1.8.0_381] at pro.shushi.pamirs.boot.common.initial.PamirsBootMainInitial.init(PamirsBootMainInitial.java:66) ~[pamirs-boot-api-4.6.10.jar!/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_381] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_381] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_381] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_381] at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:305) ~[spring-context-5.2.12.RELEASE.jar!/:5.2.12.RELEASE] … 20 common frames omitted Caused by: java.lang.NoClassDefFoundError: com/sun/tools/javac/tree/JCTree$JCExpression at java.lang.Class.forName0(Native Method) ~[na:1.8.0_381] at java.lang.Class.forName(Class.java:264) ~[na:1.8.0_381] at pro.shushi.pamirs.meta.util.ClassUtils.getClasses(ClassUtils.java:157) ~[pamirs-meta-model-4.6.8.jar!/:na] at pro.shushi.pamirs.meta.util.ClassUtils.getClassesByPacks(ClassUtils.java:73) ~[pamirs-meta-model-4.6.8.jar!/:na] at pro.shushi.pamirs.channel.core.manager.EnhanceModelScanner.enhanceModel(EnhanceModelScanner.java:51) ~[pamirs-channel-core-4.6.15.jar!/:na] at pro.shushi.pamirs.channel.core.init.ChannelSystemBootAfterInit.init(ChannelSystemBootAfterInit.java:31) 解决办法 方式一【推荐】、配置channel的扫描路径 pamirs: channel: packages: – com.pamirs.ic 方式二、使用Oracle版本的jdk，确保jdk的lib目录，tools.jar有com/sun/tools/javac/tree/JCTree对应的类 问题2：启动报类JsonProvider找不到 具体报错 如果启动报错信息如下： Caused by: java.lang.NoClassDefFoundError: jakarta/json/spi/JsonProvider at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_181] at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_181] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_181] at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[na:1.8.0_181] 产生原因 项目中只引入了pamirs-channel-core，但未引入elasticsearch相关的包 解决办法 <dependency> <groupId>org.elasticsearch.client</groupId> <artifactId>elasticsearch-rest-client</artifactId> <version>8.4.1</version> </dependency> <dependency> <groupId>jakarta.json</groupId> <artifactId>jakarta.json-api</artifactId> <version>2.1.1</version> </dependency> 其他参考： Oinone引入搜索引擎步骤：https://doc.oinone.top/backend/7235.html
1. Oinone如何支持构建分布式项目 参考文档：https://doc.oinone.top/kai-fa-shi-jian/5572.html 2. Oinone远程服务发布范围 泛化服务范围，可选值：module、namespacemodule：按模块维度发布远程服务namespace：按Fun的namespace维度发布远程服务默认按module维度发布服务 pamirs: distribution: service: #serviceScope: 可选值namespace、module serviceScope: module 3.关闭Dubbo服务注册元数据上报日志 logging: level: root: info pro.shushi.pamirs.framework.connectors.data.mapper.PamirsMapper: error pro.shushi.pamirs.framework.connectors.data.mapper.GenericMapper: error # mybatis sql日志 RocketmqClient: error org.apache.dubbo.registry.zookeeper.ZookeeperRegistry: error org.apache.dubbo.registry.integration.RegistryDirectory: error org.apache.dubbo.config.ServiceConfig: error com.alibaba.nacos.client.naming: error org.apache.dubbo.registry.nacos.NacosRegistry: error org.apache.dubbo.registry.support.AbstractRegistryFactory: error org.apache.dubbo.registry.integration.RegistryProtocol: error org.apache.dubbo.registry.client.metadata.store.RemoteMetadataServiceImpl: off org.apache.dubbo.metadata.store.zookeeper.ZookeeperMetadataReport: off org.apache.dubbo.metadata.store.nacos.NacosMetadataReport: off 4.Naocs配置列表出现多余配置 dubbo 集成 nacos注册中心，会出现多余的配置，详细参考：配置列表会自动创建很多无关的配置: https://github.com/apache/dubbo/issues/6645配置列表出现多余的配置：https://github.com/alibaba/nacos/issues/8843 按照下面的配置可以将其关闭（📢主要是这三项配置use-as-config-center， use-as-metadata-center，metadata-report.failfast），已生成的配置需要手动删除掉。 dubbo: application: name: pamirs-demo version: 1.0.0 metadata-type: local registry: id: pamirs-demo-registry address: nacos://192.168.0.129:8848 username: nacos password: nacos # dubbo使用nacos的注册中心往配置中心写入配置关闭配置 use-as-metadata-center: false use-as-config-center: false config-center: address: nacos://192.168.0.129:8848 username: nacos password: nacos metadata-report: failfast: false # 关闭错误上报的功能 address: nacos://192.168.0.129:8848 username: nacos password: nacos protocol: name: dubbo port: -1 serialization: pamirs scan: base-packages: pro.shushi cloud: subscribed-services:
