在 Alfresco 中为 Webscript 调用 Json 响应的问题

Question

• 我在公司首页>数据字典>中创建了Json响应文件 Web 脚本 > org > alfresco > 示例，名称为： folder.get.json.ftl 用于其中一个 Alfresco Web
  脚本（http://localhost:8080/alfresco/service/sample/folder/Company%20Home）根据 中提到的指导方针 http://docs.alfresco.com/4.0/index.jsp?topic=%2Fcom.alfresco.enterprise.doc%2Ftasks%2Fws-json-add.html。
• 成功添加 webscript 后，我​​刷新了 网页脚本。
• 现在当我想使用 URL 调用这个 websrcipt http://localhost:8080/alfresco/service/sample/folder/Company%20Home?format=json 我收到内部错误（500）。

请帮助我解决这个问题。 提前致谢！！！！

下面是堆栈跟踪

{
    "status" : 
  {
    "code" : 500,
    "name" : "Internal Error",
    "description" : "An error inside the HTTP server which prevented it from fulfilling the request."
  },  

  "message" : "01270141 Wrapped Exception (with status template): 01270216 Error during processing of the template 'Expression verbose is undefined on line 12, column 14 in org\/alfresco\/sample\/folder.get.json.ftl.'. Please contact your system administrator.",  
  "exception" : "org.springframework.extensions.webscripts.WebScriptException - 01270141 Wrapped Exception (with status template): 01270216 Error during processing of the template 'Expression verbose is undefined on line 12, column 14 in org\/alfresco\/sample\/folder.get.json.ftl.'. Please contact your system administrator.",

  "callstack" : 
  [ 
      ""      ,"freemarker.core.InvalidReferenceException: Expression verbose is undefined on line 12, column 14 in org\/alfresco\/sample\/folder.get.json.ftl."
      ,"freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125)"
      ,"freemarker.core.Expression.isTrue(Expression.java:145)"
      ,"freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:77)"
      ,"freemarker.core.Environment.visit(Environment.java:221)"
      ,"freemarker.core.MixedContent.accept(MixedContent.java:92)"
      ,"freemarker.core.Environment.visit(Environment.java:221)"
      ,"freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:179)"
      ,"freemarker.core.Environment.visit(Environment.java:428)"
      ,"freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)"
      ,"freemarker.core.Environment.visit(Environment.java:221)"
      ,"freemarker.core.MixedContent.accept(MixedContent.java:92)"
      ,"freemarker.core.Environment.visit(Environment.java:221)"
      ,"freemarker.core.Environment.process(Environment.java:199)"
      ,"org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:202)"
      ,"org.springframework.extensions.webscripts.AbstractWebScript.renderTemplate(AbstractWebScript.java:714)"
      ,"org.springframework.extensions.webscripts.DeclarativeWebScript.renderFormatTemplate(DeclarativeWebScript.java:267)"
      ,"org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:147)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:400)"
      ,"org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:388)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:453)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:491)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:316)"
      ,"org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:352)"
      ,"org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:189)"
      ,"org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:118)"
      ,"javax.servlet.http.HttpServlet.service(HttpServlet.java:717)"
      ,"org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)"
      ,"org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)"
      ,"org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:58)"
      ,"org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)"
      ,"org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)"
      ,"org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)"
      ,"org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)"
      ,"org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:465)"
      ,"org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)"
      ,"org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)"
      ,"org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)"
      ,"org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)"
      ,"org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)"
      ,"org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)"
      ,"org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)"
      ,"java.lang.Thread.run(Thread.java:619)"
      ,"org.alfresco.service.cmr.repository.TemplateException: 01270216 Error during processing of the template 'Expression verbose is undefined on line 12, column 14 in org\/alfresco\/sample\/folder.get.json.ftl.'. Please contact your system administrator."
      ,"org.alfresco.repo.template.FreeMarkerProcessor.process(FreeMarkerProcessor.java:206)"
      ,"org.springframework.extensions.webscripts.WebScriptException: 01270141 Wrapped Exception (with status template): 01270216 Error during processing of the template 'Expression verbose is undefined on line 12, column 14 in org\/alfresco\/sample\/folder.get.json.ftl.'. Please contact your system administrator."
      ,"org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:884)"

  ],

  "server" : "Community v4.0.0 (a r30055) schema 5,016",
  "time" : "Feb 27, 2012 9:53:23 AM"
}

Answer 1

关键是：

freemarker.core.InvalidReferenceException: Expression verbose is undefined on line 12, column 14 in org/alfresco/sample/folder.get.json.ftl.

您的模板在第 12 行第 14 个字符上引用了一个不存在的变量“verbose”。您应该在模型中设置该变量，或者在使用它之前检查它是否已定义。