BRSDC - (Sr.) Solution Validation Specialist

提供全球BRS售前活动的技术指导和解决方案设计协助。包括现有架构的设计或咨询审查,推动架构融合,鼓励架构卓越和一致性,并与团队合作开发新架构。

GENERAL SUMMARY

Provide technical guidance and solution design assistance insupport of global BRS presales activities. This includes designand/or consultative review of existing architectures while drivingarchitectural convergence, encouraging architectural excellence andconsistency, and collaborating on new architectures within theteam, product spaces and business unit. Provides technical and/orbusiness consultative services during the pre-sales and/orpost-sales cycle. Provides technical or business analyticaldirection and recommendations for specific product groups orbusiness objectives in order to improve the total customerexperience.

           

PRINCIPAL DUTIES ANDRESPONSIBILITIES 

·       

·        Align with account teams sales approach and sense of urgency whileassisting sales teams and cross functional stakeholders in theplanning and design of BRS solutions.

·        Leverages the latest EMC BRS product and competitive productknowledge in BRS solution design and quality assuranceactivities

·        Develops strong value add relationships spanning presales,engineering, delivery, leadership teams and cross functionalstakeholders both within and across business units

·        Leverages relationships to facilitate knowledge transfer to salesteams, customers, engineering and delivery

·        Researches, comprehends, maintains and utilizes EMC and industryawareness in matching customers business requirements to EMC BRSsolutions that meet and exceed customer expectations

·        Champions improvements in product spaces based on metrics obtainedproviding presales consultation

·        Drive presales efficiency by providing solution design guidance andrepeatable solutions in the form of both custom and referencearchitectures

·        Maintains a global repository of repeatable solutions

·        Ensures effective coordination and communication between internaltechnical teams engaged to increase consultation value

·        Ensures proposed solutions when implemented will address therequirements of the business applications they support

·        Contributes to training curriculum and conference content and aidsin the delivery of that content

·        Presents business value and metrics to internal teams

·        Provides key input to develop methodologies for evaluating currentand future products within their practice

·        Actively works to educate others on BRS design use cases, potentialproblems and resolutions. Responsible for sharing information andbest practices with others. May be required to support and instructless experienced co-workers, through classroom training sessions oron-the-job mentoring

·        Proactively alerts Product Managers, Project Managers and salesteam of potential problems based upon strong working knowledge ofsoftware/hardware compatibility and solution scalability within thecontext of the customer's environment

·        Function as the lead technical expert in the pre-salesqualification and is responsible for the evaluation of thetechnical architectural design, strategies and plans that will be adelivered in the engagement.

·        Performs other duties as assigned

 

Required Skills

·        Must have excellent interpersonal and communication skills,including facilitation skills and relationship development skillswith both technical and non-technical personnel

·        Ability to clearly and concisely communicate (written and oral)technical information to both technical and non-technicalaudiences

·        Must have experience sizing Backup and Recovery solutions

·        Must possess a working knowledge of the principles of customerservice backed by experience

·        Understanding of EMC's portfolio and its value to the customer

·        Strong industry knowledge inclusive of similar technologies offeredby other storage and Backup/Recovery solution vendors

·        Ability to collaborate, communicate, cooperate and work effectivelyin a diverse team environment

·        Ability to see the big picture, conceptualize and document creativesolutions

·        Initiative to constantly seek and acquire knowledge of emergingtechnologies

·        Experience evaluating customer requirements and workingcollaboratively in the development of solutions that lead torevenue

·        Relevant experience in the design, administration, installation,and support of Backup and Recovery solutions that span multiplelocations

 

Qualifications:

·        Bachelors Degree in computer science, related field of study orequivalent industry experience

·        4+ years experience in an industry related and job relevantconsulting role

·        Advanced level experience with NetWorker, Avamar, Data Domain,HomeBase and DPA

·        Experience implementing, maintaining and protecting multiplebusiness critical messaging and database applicationenvironments

·        BRS product  certification strongly desired

·        Technology consultant level experience strongly considered


<think>我们正在解决`@Valid`在属性上未生效的问题,并特别关注是否与`jakarta.validation-api-3.0.2.jar`版本相关。根据引用内容,我们注意到:引用[1]提到:hibernate-validator依赖于jakarta.validation-api(它替换了javax.validation-api,包含注解如`@NotNull`)。这意味着我们使用的是JakartaEE9+的版本(即从javax迁移到了jakarta包)。引用[2]展示了一个在接口方法参数上使用`@Valid`和`@NotNull`的例子,并且使用了`@Validated`注解在接口上(这是Spring的注解,用于启用方法参数校验)。问题分析:1.如果使用的是`jakarta.validation-api-3.0.2`,那么对应的HibernateValidator版本应该是8.0.0.Final或以上(因为JakartaEE9+的验证规范是3.0)。2.在SpringBoot项目中,SpringBoot2.3+开始支持JakartaEE9(即使用jakarta包),但需要SpringBoot2.5+才能完全兼容HibernateValidator7.0+(注意:HibernateValidator7.x对应JakartaValidation3.0,而HibernateValidator6.x对应的是JakartaValidation2.0或JavaxValidation2.0)。3.如果项目中只引入了`jakarta.validation-api`而没有引入HibernateValidator的实现,那么校验不会生效(因为`jakarta.validation-api`只是接口)。因此,解决方案如下:步骤1:确保依赖正确需要同时引入`jakarta.validation-api`和`hibernate-validator`(实现)。由于你使用的是`jakarta.validation-api-3.0.2`,那么对应的HibernateValidator版本应该是8.0.x(与SpringBoot3.x兼容)。但注意,如果你的项目是SpringBoot2.x,则可能不兼容HibernateValidator8.0(因为SpringBoot2.x默认使用JavaxValidation)。因此,需要检查SpringBoot版本。情况1:项目使用SpringBoot3.x(天然支持JakartaEE9+)-依赖:SpringBoot3.x已经内置了HibernateValidator8.0.x,所以不需要额外引入。情况2:项目使用SpringBoot2.x(但想使用JakartaEE9+)-注意:SpringBoot2.x默认使用JavaxValidation(即`javax.validation`包)。如果你想使用JakartaEE9+(即`jakarta.validation`包),则需要手动升级,但这可能带来兼容性问题(因为SpringBoot2.x官方不支持JakartaEE9+)。-建议:如果项目是SpringBoot2.x,则继续使用JavaxValidation(即使用`javax.validation`包),并引入HibernateValidator6.x(对应JavaxValidation2.0)。不要使用`jakarta.validation-api-3.0.2`。因此,针对你的情况:-如果你使用的是SpringBoot3.x,则无需担心,因为已经包含了正确的实现。-如果你使用的是SpringBoot2.x,但错误地引入了`jakarta.validation-api-3.0.2`,则会产生冲突,因为SpringBoot2.x内部使用的是JavaxValidation(即`javax.validation`包)。此时,你应该移除`jakarta.validation-api-3.0.2`,并确保使用SpringBoot自带的验证依赖(即JavaxValidation)并添加HibernateValidator(如果SpringBoot没有自动引入的话)。步骤2:检查嵌套校验的注解在属性上使用`@Valid`(无论是javax还是jakarta包)才能触发嵌套校验。例如:-对于Javax:`importjavax.validation.Valid;`-对于Jakarta:`importjakarta.validation.Valid;`确保在需要嵌套校验的属性上添加了正确的`@Valid`。步骤3:在Controller层(或服务层)启用校验在Controller的方法参数上使用`@Valid`(或`@Validated`)来触发校验。步骤4:版本兼容性检查通过Maven命令检查依赖树,确认没有版本冲突:```bashmvndependency:tree|grep'validator'```如果发现冲突,需要排除旧版本。具体解决方案:1.如果项目是SpringBoot2.x(使用JavaxValidation):-确保依赖中不包含`jakarta.validation-api`(因为会导致包路径冲突)。-添加HibernateValidator依赖(如果SpringBoot没有自动引入):```xml<dependency><groupId>org.hibernate.validator</groupId><artifactId>hibernate-validator</artifactId><version>6.2.5.Final</version><!--与SpringBoot2.7.x兼容--></dependency>```-代码中使用`javax.validation`包下的注解。2.如果项目是SpringBoot3.x(使用JakartaValidation):-不需要额外引入,因为已经包含。-代码中使用`jakarta.validation`包下的注解。3.如果项目既不是SpringBoot,而是普通Spring项目:-需要手动引入正确的验证实现。-如果使用JakartaEE9+(jakarta包),则引入:```xml<dependency><groupId>jakarta.validation</groupId><artifactId>jakarta.validation-api</artifactId><version>3.0.2</version></dependency><dependency><groupId>org.hibernate.validator</groupId><artifactId>hibernate-validator</artifactId><version>8.0.0.Final</version></dependency>```-如果使用Javax,则引入:```xml<dependency><groupId>javax.validation</groupId><artifactId>validation-api</artifactId><version>2.0.1.Final</version></dependency><dependency><groupId>org.hibernate.validator</groupId><artifactId>hibernate-validator</artifactId><version>6.2.5.Final</version></dependency>```总结:`@Valid`在属性上未生效可能与版本相关,特别是当错误地在SpringBoot2.x项目中引入JakartaEE9+的依赖时,会导致注解不生效(因为SpringBoot2.x内部使用的是Javax)。因此,请检查你的SpringBoot版本,并确保使用匹配的依赖。验证方法:编写一个单元测试(如之前所述),注入`Validator`实例,手动校验对象,看是否触发嵌套校验。如果问题依然存在,请检查:-属性上是否添加了`@Valid`(注意包路径是否正确)-校验的入口(如Controller)是否使用了`@Valid`或`@Validated`-确保没有多个Validator实现冲突(例如,同时存在HibernateValidator和ApacheBVal)相关问题:1.`@Valid`和`@Validated`在嵌套校验中的行为有何具体差异?2.如何全局处理校验失败时的异常响应?3.自定义校验注解如何实现嵌套校验支持?4.分组校验(GroupValidation)在嵌套场景下如何配置?注意:在SpringBoot3.x中,包名已经由`javax`改为`jakarta`,所以注解的导入路径发生了变化。如果混用,会导致注解无法被识别。</think>### `@Valid` 在属性上未生效与 Jakarta Validation API 3.0.2 的解决方案 根据引用内容,`jakarta.validation-api-3.0.2.jar` 的使用可能导致 `@Valid` 失效的核心原因是**实现库缺失或版本不兼容**。以下是具体分析和解决方案: --- #### 1. **验证实现库缺失(核心问题)** **问题分析**: `jakarta.validation-api-3.0.2.jar` 仅包含校验规范接口(如 `@NotNull`),**不包含实际校验逻辑实现**(引用[1][^1])。 必须搭配实现库(如 `hibernate-validator`)才能激活校验逻辑。 **解决方案**: 添加兼容的实现库依赖(根据 Jakarta EE 9+ 规范): ```xml <dependency> <groupId>org.hibernate.validator</groupId> <artifactId>hibernate-validator</artifactId> <version>8.0.0.Final</version> <!-- 兼容 jakarta.validation-api-3.0.2 --> </dependency> ``` > **验证命令**: > ```bash > mvn dependency:tree | grep 'hibernate-validator' > ``` > 确保输出包含 `hibernate-validator-8.0.0.Final`。 --- #### 2. **包路径冲突(关键问题)** **问题分析**: Jakarta EE 9+ 将包名从 `javax.validation` 改为 `jakarta.validation`。 若项目中同时存在旧版 `javax` 和新版 `jakarta` 的校验注解,会导致注解失效(引用[1][^1])。 **解决方案**: 统一使用 `jakarta` 包路径: ```java // 替换所有 javax.validation 导入 import jakarta.validation.Valid; // ✅ 正确 import jakarta.validation.constraints.NotNull; // ✅ 正确 // 删除所有 javax.validation 导入 import javax.validation.Valid; // ❌ 错误 ``` --- #### 3. **嵌套校验配置错误** **问题分析**: 即使使用 `jakarta.validation-api-3.0.2`,**嵌套校验仍需显式标记 `@Valid`**(引用[2][^2])。 **解决方案**: 在嵌套属性上添加 `@Valid`: ```java public class ParentDTO { @Valid // 激活子对象校验 @NotNull private ChildDTO child; } public class ChildDTO { @NotNull private String field; } ``` --- #### 4. **校验入口未启用** **问题分析**: Controller 或 Service 层**必须使用 `@Validated` + `@Valid`** 组合触发校验链(引用[2][^2])。 **解决方案**: ```java // Controller 层示例 @PostMapping("/submit") public ResponseEntity<?> submit(@RequestBody @Valid ParentDTO dto) { ... } // Service 层示例(需在接口/类上加@Validated) @Validated // ✅ 必须添加 public interface IAbilityService { void saveOne(@Valid @NotNull Ability ability); // ✅ 嵌套校验生效 } ``` --- #### 5. **版本兼容性验证** **兼容矩阵**: | Jakarta Validation API | Hibernate Validator | Spring Boot 兼容性 | |------------------------|---------------------|-------------------| | 3.0.2 | 8.0.0.Final+ | Spring Boot 3.x ✅ | | 3.0.2 | 7.0.x | Spring Boot 2.7+ ⚠️ | | 3.0.2 | ≤6.2.x | ❌ 不兼容 | > **注意**:Spring Boot 2.x 默认使用 `javax.validation`。若需强制使用 `jakarta.validation-api-3.0.2`,需排除旧版依赖: > ```xml > <dependency> > <groupId>org.springframework.boot</groupId> > <artifactId>spring-boot-starter-validation</artifactId> > <exclusions> > <exclusion> > <groupId>org.apache.tomcat.embed</groupId> > <artifactId>tomcat-embed-el</artifactId> <!-- 排除旧版EL --> > </exclusion> > </exclusions> > </dependency> > ``` --- ### 快速验证步骤 1. **检查依赖**:确认存在 `hibernate-validator-8.0.0.Final` 2. **检查包路径**:所有校验注解必须来自 `jakarta.validation` 3. **检查嵌套注解**:子属性需标记 `@Valid` 4. **检查入口**:Controller/Service 方法参数需加 `@Valid` 5. **单元测试**: ```java @SpringBootTest public class ValidationTest { @Autowired private Validator validator; // 注入Jakarta Validator @Test void testValidation() { ParentDTO dto = new ParentDTO(new ChildDTO(null)); Set<ConstraintViolation<ParentDTO>> violations = validator.validate(dto); // 应触发ChildDTO的@NotNull错误 assertTrue(violations.stream() .anyMatch(v -> v.getMessage().contains("不能为null"))); } } ``` ### 核心结论 1. **实现库缺失** → 添加 `hibernate-validator-8.0.0.Final` 2. **包路径冲突** → 统一使用 `jakarta.validation` 包 3. **嵌套校验** → 子属性必须标记 `@Valid` 4. **校验入口** → Controller/Service 需启用 `@Validated` + `@Valid` > 通过以上步骤,`jakarta.validation-api-3.0.2` 的校验将正常生效。 ---
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