Groovy编程:提升Java开发者效率的动态语言指南

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"编程Groovy——Java开发者动态生产力指南" 《Programming Groovy》一书是针对Java开发者提升动态编程效率的专业资源,尤其对于那些希望深入了解Groovy语言及其高级特性的程序员而言,这本书是一份不可多得的参考。Groovy是一种强大的、基于JVM的脚本语言,它与Java有着紧密的联系,同时提供了更简洁、动态的语法。 本书不仅仅是一本Groovy语言教程,更是深入探讨了元对象编程(Meta-Object Programming, MOP)、单元测试中的模拟对象(mocks)以及领域特定语言(Domain-Specific Languages, DSLs)等高级概念。通过阅读此书,读者能够理解Groovy如何提升开发效率,并将这些知识应用到实际项目中。 作者Venkat Subramaniam以其富有吸引力的讲解方式,使复杂概念变得易于理解。他深入浅出地阐述了Groovy的高级特性,如动态类型、闭包、运算符重载等,帮助Groovy开发者进一步提升他们的技能水平,实现代码的灵活性和效率的提升。 书中既包含了适合初学者的基础内容,也涵盖了Groovy的新特性和创新之处,使得有一定经验的Java开发者能够在不感到过于简单的情况下快速掌握关键概念。书中的实例和实践指导让理论知识变得生动且实用,有助于读者在实践中深化理解。 对于那些已经厌倦了传统语言入门书籍的开发者,本书提供了一种全新的阅读体验。Venkat Subramaniam成功地将他的演讲风格融入文字之中,使得学习过程充满趣味性。无论是对Groovy感兴趣的新手,还是已经在Groovy和Grails开发团队工作的成员,都能从中受益匪浅,提升自己的编程境界。 《Programming Groovy》是Java开发者向动态编程转型的理想伴侣,它将帮助读者打破Java的静态束缚,体验Groovy带来的高效和灵活性,从而在编程世界中提升自己的"功夫"。

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: WorkflowScript: 14: Invalid parameter "failFast", did you mean "unit"? @ line 14, column 50. eout(time: 48, unit: 'HOURS', failFast: ^ WorkflowScript: 16: Invalid step "parallel" used - not allowed in this context - The parallel step can only be used as the only top-level step in a stages step block @ line 16, column 6. parallel { ^ WorkflowScript: 18: Invalid step "stage" used - not allowed in this context - The stage step cannot be used in Declarative Pipelines @ line 18, column 7. stage('version-A35-2290000204') { ^ 3 errors at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:309) at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1107) at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:624) at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:602) at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:579) at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:323) at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:293) at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox$Scope.parse(GroovySandbox.java:163) at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.doParse(CpsGroovyShell.java:190) at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:175) at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:568) at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:518) at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:336) at hudson.model.ResourceController.execute(ResourceController.java:101) at hudson.model.Executor.run(Executor.java:442) Finished: FAILURE

2023-07-13 上传

Running in Durability level: MAX_SURVIVABILITY [2023-06-02 14:07:25] org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed: [2023-06-02 14:07:25] WorkflowScript: 26: No steps specified for branch @ line 26, column 13. [2023-06-02 14:07:25] steps { [2023-06-02 14:07:25] ^ [2023-06-02 14:07:25] [2023-06-02 14:07:25] 1 error [2023-06-02 14:07:25] [2023-06-02 14:07:25] at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1085) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:603) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:581) [2023-06-02 14:07:25] at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558) [2023-06-02 14:07:25] at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:298) [2023-06-02 14:07:25] at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:268) [2023-06-02 14:07:25] at groovy.lang.GroovyShell.parseClass(GroovyShell.java:688) [2023-06-02 14:07:25] at groovy.lang.GroovyShell.parse(GroovyShell.java:700) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.doParse(CpsGroovyShell.java:142) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsGroovyShell.reparse(CpsGroovyShell.java:127) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:571) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:523) [2023-06-02 14:07:25] at org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:327) [2023-06-02 14:07:25] at hudson.model.ResourceController.execute(ResourceController.java:100) [2023-06-02 14:07:25] at hudson.model.Executor.run(Executor.java:433) [2023-06-02 14:07:25] Finished: FAILURE

2023-06-03 上传