本文介绍了Grails渲染插件在Grails3.2.4中不起作用？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想渲染一个视图到pdf并尝试使用Grails渲染插件2.0.3
我尝试了最简单的gsp文件：
<！DOCTYPE html PUBLIC - // W3C // DTD XHTML 1.0 Strict // ENhttp：//www.w3 .ORG / TR / XHTML1 / DTD / XHTML1-strict.dtd>
要更改此许可证标题，请在项目属性中选择许可证标题。
要更改此模板文件，请选择工具|模板
并在编辑器中打开模板。
- >
< html>
< head>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8>
< title>样本标题< / title>
< / head>
< body>
< h1>取样线< / h1>
< / body>
< / html>
并在控制器中：
<$ p $ （）
println（>>> Offerheader：+ oh.sawMill）
// render（template：/ offerHeader / Test）
renderPdf（template：/ offerHeader / Test，文件名：offertrapport.pdf）
}
以此结尾：
2017-04-14 11：26：55.989错误--- [nio-8080-exec-6] ogweb.errors.GrailsExceptionResolver：处理请求时发生NullPointerException：[GET] / offerHeader / report / 15
Stacktrace如下：
java.lang.reflect.InvocationTargetException：null
at org.grails.core.DefaultGrailsControllerClass $ ReflectionInvoker.invoke（DefaultGrailsControllerClass.java:210）
在org.grails.core.DefaultGrailsControllerClass.invoke（DefaultGrailsControllerClass.java:187）
at org.grails.web.mapping.mvc.UrlMappingsInfoH andlerAdapter.handle（UrlMappingsInfoHandlerAdapter.groovy：90）
at org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:963）
at org.springframework.web.servlet.DispatcherServlet.doService（ DispatcherServlet.java:897）在org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:970
）
在org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java： 861）
在org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:846）
在org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal（ApplicationContextHeaderFilter.java:55）
在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:317）
在org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke（FilterSecurityInterceptor.java：
在org.springframework.security.web.access.intercep t.FilterSecurityInterceptor.doFilter（FilterSecurityInterceptor.java:91）维持在org.springframework.security.web org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
。 access.ExceptionTranslationFilter.doFilter（ExceptionTranslationFilter.java:115）
at grails.plugin.springsecurity.web.UpdateRequestContextHolderExceptionTranslationFilter.doFilter（UpdateRequestContextHolderExceptionTranslationFilter.groovy：64）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at grails.plugin.springsecurity.web.filter.GrailsAnonymousAuthenticationFilter.doFilter（GrailsAnonymousAuthenticationFilter.groovy：53）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter（RememberMeAuthenticationFi lter.java:158）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter（ SecurityContextHolderAwareRequestFilter.java:169）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter（ AbstractAuthenticationProcessingFilter.java:200）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at grails.plugin.springsecurity.web.authentication.logout.MutableLogoutFilter。 doFilter（MutableLogoutFilter.groovy：62）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at org.springframework.security.web.context.SecurityContextPersistenc eFilter.doFilter（SecurityContextPersistenceFilter.java:105）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at grails.plugin.springsecurity.web.SecurityRequestHolderFilter。 doFilter（SecurityRequestHolderFilter.groovy：58）
at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:331）
at org.springframework.security.web.FilterChainProxy.doFilterInternal（ FilterChainProxy.java:214）
at org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:177）
at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal（GrailsWebRequestFilter。的java：在org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:67 77）
）
。在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1142）$ b $ java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPo olExecutor.java:617）
在java.lang.Thread.run（Thread.java:745）
导致：java.lang.NullPointerException：null $ b $在java.beans.Introspector。 getPublicDeclaredMethods（Introspector.java:1337）
在java.beans.Introspector.getTargetMethodInfo（Introspector.java:1197）
在java.beans.Introspector.getBeanInfo（Introspector.java:426）
java.beans.Introspector.getBeanInfo（Introspector.java:173）
at grails.plugins.rendering.document.RenderEnvironment.init（RenderEnvironment.groovy：31）
at grails.plugins.rendering.document .RenderEnvironment.with（RenderEnvironment.groovy：68）
在grails.plugins.rendering.document.RenderEnvironment.with（RenderEnvironment.groovy：60）
在grails.plugins.rendering.document.XhtmlDocumentService.generateXhtml （XhtmlDocumentService.groovy：65）
at grails.plugins.rendering.document.XhtmlDocumentService.createDocument（XhtmlDocumentService.groovy：35）
at grails.plugins.rendering.RenderingSe在grails.plugins.rendering.RenderingService.render（RenderingService.groovy：35）
（在grails.plugins.rendering.RenderingService.render（RenderingService.groovy： 65）
at grails.plugins.rendering.RenderingTrait $ Trait $ Helper.render（RenderingTrait.groovy：66）
at grails.plugins.rendering.RenderingTrait $ Trait $ Helper.renderPdf（RenderingTrait.groovy： 45）
。在com.torntrading.portal.OfferHeaderController $ tt__report（OfferHeaderController.groovy：123）
。在grails.transaction.GrailsTransactionTemplate $ 2.doInTransaction（GrailsTransactionTemplate.groovy：96）
。在有机.springframework.transaction.support.TransactionTemplate.execute（TransactionTemplate.java:133）
at grails.transaction.GrailsTransactionTemplate.execute（GrailsTransactionTemplate.groovy：93）
... 37个常用框架省略
我错过了什么？或者是不是可以使用这个版本的grails（3.2.4）？
也许有更好的插件可用？
依赖关系{
...
runtime'org.springframework：spring-test：4.2.1.RELEASE
}
然后让我们说我们要在点击链接时渲染pdf，所以在gsp中：
< g：link action =reportparams ='[offerId：$ {offer.id}]'>至PDF< / g：link>
然后在控制器中：
def report（）{
def offer = Offer.get（params.offerId）
renderPdf（template：offerpdf，model：[offer：offer]，filename： offer.pdf）
}
在您的offer views目录中，您将拥有一个模板gsp命名为 _offerpdf.gsp
<！DOCTYPE html PUBLIC - // W3C // DTD XHTML 1.0 Strict // ENhttp://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">
< html>
< head>
< title>优惠< / title>
< meta http-equiv =Content-Typecontent =text / html; charset = UTF-8/>
< / head>
< body>
< h1>优惠：$ {offer.id}< / h1>
< / body>
< / html>
I want to render a view to pdf and tried using the Grails rendering plugin 2.0.3
I tried the simplest gsp-file to start with:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!--
To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor.
-->
<%@ page contentType="text/html;charset=UTF-8" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Sample title</title>
</head>
<body>
<h1>Sample line</h1>
</body>
</html>
And in the controller:
def report() {
def OfferHeader oh = OfferHeader.get(15)
println(">>> Offerheader: "+oh.sawMill)
// render(template: "/offerHeader/Test")
renderPdf(template: "/offerHeader/Test", filename: "offertrapport.pdf")
}
And that ends with:
2017-04-14 11:26:55.989 ERROR --- [nio-8080-exec-6] o.g.web.errors.GrailsExceptionResolver : NullPointerException occurred when processing request: [GET] /offerHeader/report/15
Stacktrace follows:
java.lang.reflect.InvocationTargetException: null
at org.grails.core.DefaultGrailsControllerClass$ReflectionInvoker.invoke(DefaultGrailsControllerClass.java:210)
at org.grails.core.DefaultGrailsControllerClass.invoke(DefaultGrailsControllerClass.java:187)
at org.grails.web.mapping.mvc.UrlMappingsInfoHandlerAdapter.handle(UrlMappingsInfoHandlerAdapter.groovy:90)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at grails.plugin.springsecurity.web.UpdateRequestContextHolderExceptionTranslationFilter.doFilter(UpdateRequestContextHolderExceptionTranslationFilter.groovy:64)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at grails.plugin.springsecurity.web.filter.GrailsAnonymousAuthenticationFilter.doFilter(GrailsAnonymousAuthenticationFilter.groovy:53)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:158)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at grails.plugin.springsecurity.web.authentication.logout.MutableLogoutFilter.doFilter(MutableLogoutFilter.groovy:62)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at grails.plugin.springsecurity.web.SecurityRequestHolderFilter.doFilter(SecurityRequestHolderFilter.groovy:58)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:77)
at org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:67)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException: null
at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1337)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1197)
at java.beans.Introspector.getBeanInfo(Introspector.java:426)
at java.beans.Introspector.getBeanInfo(Introspector.java:173)
at grails.plugins.rendering.document.RenderEnvironment.init(RenderEnvironment.groovy:31)
at grails.plugins.rendering.document.RenderEnvironment.with(RenderEnvironment.groovy:68)
at grails.plugins.rendering.document.RenderEnvironment.with(RenderEnvironment.groovy:60)
at grails.plugins.rendering.document.XhtmlDocumentService.generateXhtml(XhtmlDocumentService.groovy:65)
at grails.plugins.rendering.document.XhtmlDocumentService.createDocument(XhtmlDocumentService.groovy:35)
at grails.plugins.rendering.RenderingService.render(RenderingService.groovy:36)
at grails.plugins.rendering.RenderingService.render(RenderingService.groovy:35)
at grails.plugins.rendering.RenderingService.render(RenderingService.groovy:65)
at grails.plugins.rendering.RenderingTrait$Trait$Helper.render(RenderingTrait.groovy:66)
at grails.plugins.rendering.RenderingTrait$Trait$Helper.renderPdf(RenderingTrait.groovy:45)
at com.torntrading.portal.OfferHeaderController.$tt__report(OfferHeaderController.groovy:123)
at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:96)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93)
... 37 common frames omitted
What am I missing? Or is it not expected to work with this version of grails (3.2.4)?
Maybe there is better plugins to use?
解决方案
First add the following dependency to build.gradle:
dependencies {
...
runtime "org.springframework:spring-test:4.2.1.RELEASE"
}
Then lets say we're going to render the pdf on the click of a link so in gsp:
<g:link action="report" params='[offerId: "${offer.id}"]'>To PDF</g:link>
Then in controller:
def report() {
def offer = Offer.get( params.offerId )
renderPdf(template: "offerpdf", model: [offer: offer], filename: "offer.pdf")
}
In your offer views directory you'd have a template gsp named _offerpdf.gsp
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Offer</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<h1>Offer: ${offer.id}</h1>
</body>
</html>
这篇关于Grails渲染插件在Grails3.2.4中不起作用？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！