Swagger Codegen 自动生成Spring Boot代码
燕富
Swagger Codegen是一个开源的代码生成器，根据Swagger定义的RESTful API可以自动建立服务端和客户端的连接。Swagger Codegen的源码可以在Github上找到。
GitHub: https://github.com/swagger-api/swagger-codegen
本文采用的是2.3.1版本，具体jar包可以在GitHub上下载。下边开始使用介绍
- 将swagger-codegen-cli-2.3.1.jar放在指定目录下，打开命令行工具，执行以下命令，目的是查看swagger-codegen支持的语言
$ java -jar swagger-codegen-cli-2.3.1.jar Available languages: [ada, ada-server, akka-scala, android, apache2, apex, aspnetcore, bash, csharp, clojure, cwiki, cpprest, csharp-dotnet2, dart, elixir, elm, eiffel, erlang-client, erlang-server, finch, flash, python-flask, go, go-server, groovy, haskell-http-client, haskell, jmeter, jaxrs-cxf-client, jaxrs-cxf, java, inflector, jaxrs-cxf-cdi, jaxrs-spec, jaxrs, msf4j, java-pkmst, java-play-framework, jaxrs-resteasy-eap, jaxrs-resteasy, javascript, javascript-closure-angular, java-vertx, kotlin, lua, lumen, nancyfx, nodejs-server, objc, perl, php, powershell, pistache-server, python, qt5cpp, r, rails5, restbed, ruby, rust, rust-server, scala, scala-lagom-server, scalatra, scalaz, php-silex, sinatra, slim, spring, dynamic-html, html2, html, swagger, swagger-yaml, swift4, swift3, swift, php-symfony, tizen, typescript-aurelia, typescript-angular, typescript-angularjs, typescript-fetch, typescript-jquery, typescript-node, undertow, ze-ph]下图为执行命令后结果，可以发现，2.3.1版本已经支持了spring
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运行以下命令，可以查看支持的命令
$ java -jar swagger-codegen-cli-2.3.1.jar help usage: swagger-codegen-cli <command> [<args>] The most commonly used swagger-codegen-cli commands are: config-help Config help for chosen lang generate Generate code with chosen lang help Display help information langs Shows available langs meta MetaGenerator. Generator for creating a new template set and configuration for Codegen. The output will be based on the language you specify, and includes default templates to include. validate Validate specification version Show version information See 'swagger-codegen-cli help <command>' for more information on a specific command.3.查看spring配置文件参数含义
$ java -jar swagger-codegen-cli-2.3.1.jar config-help -l spring CONFIG OPTIONS sortParamsByRequiredFlag Sort method arguments to place required parameters before optional parameters. (Default: true) ensureUniqueParams Whether to ensure parameter names are unique in an operation (rename parameters that are not). (Default: true) allowUnicodeIdentifiers boolean, toggles whether unicode identifiers are allowed in names or not, default is false (Default: false) modelPackage package for generated models apiPackage package for generated api classes invokerPackage root package for generated code groupId groupId in generated pom.xml artifactId artifactId in generated pom.xml artifactVersion artifact version in generated pom.xml artifactUrl artifact URL in generated pom.xml artifactDescription artifact description in generated pom.xml scmConnection SCM connection in generated pom.xml scmDeveloperConnection SCM developer connection in generated pom.xml scmUrl SCM URL in generated pom.xml developerName developer name in generated pom.xml developerEmail developer email in generated pom.xml developerOrganization developer organization in generated pom.xml developerOrganizationUrl developer organization URL in generated pom.xml licenseName The name of the license licenseUrl The URL of the license sourceFolder source folder for generated code localVariablePrefix prefix for generated code members and local variables serializableModel boolean - toggle "implements Serializable" for generated models (Default: false) bigDecimalAsString Treat BigDecimal values as Strings to avoid precision loss. (Default: false) fullJavaUtil whether to use fully qualified name for classes under java.util. This option only works for Java API client (Default: false) hideGenerationTimestamp hides the timestamp when files were generated withXml whether to include support for application/xml content type and include XML annotations in the model (works with libraries that provide support for JSON and XML) (Default: false) dateLibrary Option. Date library to use joda - Joda (for legacy app only) legacy - Legacy java.util.Date (if you really have a good reason not to use threetenbp java8-localdatetime - Java 8 using LocalDateTime (for legacy app only) java8 - Java 8 native JSR310 (preferred for jdk 1.8+) - note: this also sets "java8" to true threetenbp - Backport of JSR310 (preferred for jdk < 1.8) java8 Option. Use Java8 classes instead of third party equivalents true - Use Java 8 classes such as Base64 false - Various third party libraries as needed title server title name or client service name configPackage configuration package for generated code basePackage base package (invokerPackage) for generated code interfaceOnly Whether to generate only API interface stubs without the server files. (Default: false) delegatePattern Whether to generate the server files using the delegate pattern (Default: false) singleContentTypes Whether to select only one produces/consumes content-type by operation. (Default: false) java8 use java8 default interface (Default: false) async use async Callable controllers (Default: false) responseWrapper wrap the responses in given type (Future,Callable,CompletableFuture,ListenableFuture,DeferredResult,HystrixCommand,RxObservable,RxSingle or fully qualified type) useTags use tags for creating interface and controller classnames (Default: false) useBeanValidation Use BeanValidation API annotations (Default: false) implicitHeaders Use of @ApiImplicitParams for headers. (Default: false) swaggerDocketConfig Generate Spring Swagger Docket configuration class. (Default: false) useOptional Use Optional container for optional parameters (Default: false) library library template (sub-template) to use (Default: spring-boot) spring-boot - Spring-boot Server application using the SpringFox integration. spring-mvc - Spring-MVC Server application using the SpringFox integration. spring-cloud - Spring-Cloud-Feign client with Spring-Boot auto-configured settings.4.下边为我的配置文件内容，命名为config.json
{ "apiPackage": "com.manulife.ap.server.api", "artifactId": "cmp-performance-mgt-service", "basePackage": "com.manulife.ap.server", "configPackage": "com.manulife.ap.server.config", "dateLibrary": "java8", "delegatePattern": true, "groupId": "com.manulife.ap", "hideGenerationTimestamp": true, "java8": true, "language": "spring-boot", "modelPackage": "com.manulife.ap.server.model" }5.下图为swagger配置文件内容,通过 OpenAPI Specification 来描述 API，命名为openapi.yml
swagger: '2.0' info: title: Performance API description: Performance API version: 1.0.0 paths: /performance-mgt/v1/get-performance: get: tags: - performance operationId: getPerformance parameters: - name: agentId in: query type: string required: true - name: startDate in: query type: string required: true - name: endDate in: query type: string - name: zoneId in: query type: string default: +07:00 responses: '200': description: OK schema: $ref: '#/definitions/GetPerformanceResponse' default: description: default schema: $ref: '#/definitions/ErrorResponse' /performance-mgt/v1.1/get-performance: get: tags: - performance operationId: getPerformanceV1.1 parameters: - name: agentId in: query type: string required: true - name: startDate in: query type: string required: true - name: endDate in: query type: string - name: zoneId in: query type: string default: +07:00 responses: '200': description: OK schema: $ref: '#/definitions/GetPerformanceSummaryResponse' default: description: default schema: $ref: '#/definitions/ErrorResponse' /performance-mgt/v1/get-performance-purpose-second-level: get: tags: - performanceSecondLevel operationId: getPerformancePurposeSecondLevel parameters: - name: agentId in: query type: string required: true - name: startDate in: query type: string required: true - name: endDate in: query type: string - name: purpose in: query type: string - name: zoneId in: query type: string default: GMT+7 responses: '200': description: OK schema: $ref: '#/definitions/GetPerformanceSecondLevelPurposeResponse' default: description: default schema: $ref: '#/definitions/ErrorResponse' /performance-mgt/v1.2/get-performance-purpose-second-level: get: tags: - performanceSecondLevel operationId: getPerformancePurposeSecondLevelV1.2 parameters: - name: agentId in: query type: string required: true - name: startDate in: query type: string required: true - name: endDate in: query type: string - name: purpose in: query type: string - name: zoneId in: query type: string default: +07:00 responses: '200': description: OK schema: $ref: '#/definitions/GetPerformanceSecondLevelPurposeResponseV1.2' default: description: default schema: $ref: '#/definitions/ErrorResponse' /performance-mgt/v1/get-performance-lead-second-level: get: tags: - performanceSecondLevel operationId: getPerformanceLeadSecondLevel parameters: - name: agentId in: query type: string required: true - name: startDate in: query type: string required: true - name: endDate in: query type: string - name: purpose in: query type: string - name: zoneId in: query type: string default: +07:00 responses: '200': description: OK schema: $ref: '#/definitions/GetPerformanceSecondLevelLeadResponse' default: description: default schema: $ref: '#/definitions/ErrorResponse' /performance-mgt/v1/get-production-bonus: get: tags: - bonus operationId: getProductionBonus parameters: - in: header name: X-User-ID type: string required: true - name: userId in: query type: string - name: joiningDate in: query type: string required: true - name: startDate in: query type: string - name: endDate in: query type: string responses: '200': description: OK schema: $ref: '#/definitions/GetBonusResponse' default: description: default schema: $ref: '#/definitions/ErrorResponse' definitions: GetBonusResponse: type: object properties: result: type: object properties: monthly: $ref: '#/definitions/MonthlyBonus' yearly: $ref: '#/definitions/MonthlyBonus' error: $ref: '#/definitions/ErrorResponse' MonthlyBonus: type: array items: properties: year: type: integer month: type: integer bonus: type: number GetPerformanceSecondLevelLeadResponse: type: object properties: result: type: object properties: startDate: type: string endDate: type: string purpose: type: string data: type: array items: $ref: '#/definitions/Lead' error: $ref: '#/definitions/ErrorResponse' GetPerformanceSecondLevelPurposeResponse: type: object properties: result: type: object properties: startDate: type: string endDate: type: string purpose: type: string completed: type: array items: $ref: '#/definitions/Activity' active: type: array items: $ref: '#/definitions/Activity' error: $ref: '#/definitions/ErrorResponse' GetPerformanceSecondLevelPurposeResponseV1.2: type: object properties: result: type: object properties: startDate: type: string endDate: type: string purpose: type: string completed: type: array items: $ref: '#/definitions/ActivityV1.2' active: type: array items: $ref: '#/definitions/ActivityV1.2' error: $ref: '#/definitions/ErrorResponse' GetPerformanceSummaryResponse: type: object properties: result: type: object properties: summary: type: object properties: dataByWeek: type: array items: $ref: '#/definitions/WeeklySummaryPerformanceData' dataByMonth: type: array items: $ref: '#/definitions/MonthlySummaryPerformanceData' dataYearToDate: type: array items: $ref: '#/definitions/YearlySummaryPerformanceData' error: $ref: '#/definitions/ErrorResponse' GetPerformanceResponse: type: object properties: result: type: object properties: summary: type: object properties: dataByMonth: type: array items: $ref: '#/definitions/MonthlySummaryPerformanceData' dataYearToDate: type: array items: $ref: '#/definitions/YearlySummaryPerformanceData' data: type: object properties: calls: $ref: '#/definitions/PerformanceDataByPurpose' closings: $ref: '#/definitions/PerformanceDataByPurpose' prospects: $ref: '#/definitions/PerformanceDataByLeadType' proposals: $ref: '#/definitions/PerformanceDataByPurpose' referrals: $ref: '#/definitions/PerformanceDataByLeadType' interviews: $ref: '#/definitions/PerformanceDataByPurpose' error: $ref: '#/definitions/ErrorResponse' PerformanceDataByPurpose: type: array items: $ref: '#/definitions/PerformanceDataByPurposeByMonth' PerformanceDataByPurposeByMonth: type: object properties: month: type: string format: date details: type: array items: $ref: '#/definitions/PerformanceDataByPurposeByMonthByWeek' PerformanceDataByPurposeByMonthByWeek: type: object properties: week: type: integer startDate: type: string format: date endDate: type: string format: date weeklyPerformance: $ref: '#/definitions/PerformanceValues' monthlyPerformance: $ref: '#/definitions/PerformanceValues' items: type: array items: $ref: '#/definitions/Event' Event: type: object properties: id: type: integer format: int64 startDateTime: type: string format: date-time type: type: string subject: type: string whoId: type: integer format: int64 whoName: type: string Activity: type: object properties: leadId: type: integer format: int64 activityId: type: integer format: int64 subject: type: string purpose: type: string enum: - New Leads - Calls - Interviews - Proposal Presented - Closing startDateTime: type: string format: date-time endDateTime: type: string format: date-time location: type: string maxLength: 1000 notes: type: string maxLength: 1000 whoName: type: string ActivityV1.2: type: object properties: leadId: type: string activityId: type: string subject: type: string purpose: type: string enum: - New Leads - Calls - Interviews - Proposal Presented - Closing startDateTime: type: string format: date-time endDateTime: type: string format: date-time location: type: string maxLength: 1000 notes: type: string maxLength: 1000 whoName: type: string outcome: type: string enum: - agree_appointment - call_later - no_answer - denied - fact_finding - fna - considering - next_meeting_for_presenting_proposal - missed_appointment - adjust_the_proposal - objections - closing_completed_application_form - contract_submission - pending - contract_issued - contract_delivery - drop_rejected fyc: type: number fyp: type: number deliveryDate: type: string format: date PerformanceDataByLeadType: type: array items: $ref: '#/definitions/PerformanceDataByLeadTypeByMonth' PerformanceDataByLeadTypeByMonth: type: object properties: month: type: string format: date details: type: array items: $ref: '#/definitions/PerformanceDataByLeadTypeByMonthByWeek' PerformanceDataByLeadTypeByMonthByWeek: type: object properties: week: type: integer startDate: type: string format: date endDate: type: string format: date weeklyPerformance: $ref: '#/definitions/PerformanceValues' monthlyPerformance: $ref: '#/definitions/PerformanceValues' items: type: array items: $ref: '#/definitions/Lead' Lead: type: object properties: firstName: type: string lastName: type: string name: type: string leadSource: type: string enum: - Natural market - Personal observation - Referral - Social media - Orphan policyholder - Lead provided by Manulife - Cold call - Family or Friends age: type: string enum: - <= 25 - 26 - 44 - 45 - 64 - '>=65' income: type: string enum: - <=10 million VND - 10 million to 20 million VND - 20 million to 30 million VND - '>=30 million VND' children: type: integer format: int32 enum: - 1 - 2 maritalStatus: type: integer format: int32 enum: - 1 - 2 familiarity: type: string enum: - Acquaintances - Familiar - Very Familiar MonthlySummaryPerformanceData: type: object properties: month: type: string format: date summaryDataByMonth: type: object properties: income: $ref: '#/definitions/Income' expectedBonus: $ref: '#/definitions/ExpectedBonus' callAppointments: $ref: '#/definitions/PerformanceValues' closings: $ref: '#/definitions/PerformanceValues' leads: $ref: '#/definitions/PerformanceValues' proposals: $ref: '#/definitions/PerformanceValues' referrals: $ref: '#/definitions/PerformanceValues' sales: $ref: '#/definitions/PerformanceValues' YearlySummaryPerformanceData: type: object properties: year: type: integer summaryDataByMonth: type: object properties: income: $ref: '#/definitions/Income' expectedBonus: $ref: '#/definitions/ExpectedBonus' callAppointments: $ref: '#/definitions/PerformanceValues' closings: $ref: '#/definitions/PerformanceValues' leads: $ref: '#/definitions/PerformanceValues' proposals: $ref: '#/definitions/PerformanceValues' referrals: $ref: '#/definitions/PerformanceValues' sales: $ref: '#/definitions/PerformanceValues' Income: type: object properties: targetIncome: type: number totalIncome: type: number ExpectedBonus: type: object properties: mdrtBonus: type: number newAgentBonus: type: number monthlyBonus: type: number quarterlyBonus: type: number WeeklySummaryPerformanceData: type: object properties: month: type: string format: date week: type: integer summaryDataByWeek: type: object properties: income: $ref: '#/definitions/Income' expectedBonus: $ref: '#/definitions/ExpectedBonus' callAppointments: $ref: '#/definitions/PerformanceValues' closings: $ref: '#/definitions/PerformanceValues' leads: $ref: '#/definitions/PerformanceValues' proposals: $ref: '#/definitions/PerformanceValues' referrals: $ref: '#/definitions/PerformanceValues' sales: $ref: '#/definitions/PerformanceValues' PerformanceValues: type: object properties: actual: type: integer expected: type: integer percentage: type: integer ErrorResponse: type: object description: Error Model if there is exception properties: errorCode: type: string errorMessage: type: object6.-i -c 分别制定相应的配置文件，-l制定语言，此处指定为spring，-o指定生成代码保存路径
$ java -jar swagger-codegen-cli-2.3.1.jar generate -i myswagger/swagger/openapi.yml -c myswagger/swagger/config.json -l spring -o myswagger/test
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