我想将 View 渲染为 pdf 并尝试使用 Grails 渲染插件 2.0.3
我尝试从最简单的 gsp 文件开始:
<!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>
在 Controller 中:
def report() {
def OfferHeader oh = OfferHeader.get(15)
println(">>> Offerheader: "+oh.sawMill)
// render(template: "/offerHeader/Test")
renderPdf(template: "/offerHeader/Test", filename: "offertrapport.pdf")
}
最后是:
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$2.doInTransaction(GrailsTransactionTemplate.groovy:96)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93)
... 37 common frames omitted
我错过了什么？或者它不应该与这个版本的 grails (3.2.4) 一起工作？
也许有更好的插件可以使用？
最佳答案
首先在build.gradle中添加如下依赖:
dependencies {
...
runtime "org.springframework:spring-test:4.2.1.RELEASE"
}
然后假设我们要在单击链接时呈现 pdf，所以在 gsp 中:
<g:link action="report" params='[offerId: "${offer.id}"]'>To PDF</g:link>
然后在 Controller 中:
def report() {
def offer = Offer.get( params.offerId )
renderPdf(template: "offerpdf", model: [offer: offer], filename: "offer.pdf")
}
在您的报价 View 目录中，您将有一个名为 _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>
关于pdf - Grails 渲染插件在 Grails3.2.4 下不起作用？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43408914/