Grails 应用程序无法在 Amazon EC2 中运行，但在 Windows 中运行良好

Question

我有一个 grails 应用程序，它可以在 Windows 中完美运行，并且在作为 WAR 文件部署到 Amazon 弹性 beanstalk 中时也可以正常运行。但它不会在亚马逊 EC2 机器上运行。为什么会这样？这是我尝试运行它时得到的输出：

| Compiling 134 source files.
| Error Compilation error: startup failed:
Compile error during compilation with javac.
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:42: error: no interface expected here
public class ScaffoldingViewResolver extends GrailsViewResolver {
                                             ^
/home/ec2-user/FatcaOne_0/target/work/plugins/cache-1.1.2/src/java/grails/plugin/cache/web/

PageInfo.java:37: error: package net.sf.cglib.proxy does not exist
import net.sf.cglib.proxy.Callback;
                         ^
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldedGroovyPageView.java:87: error: method createResponseWriter in class GroovyPageView cannot be applied to given types;
                        out = createResponseWriter(response);
                              ^
  required: GrailsWebRequest,HttpServletResponse
  found: HttpServletResponse
  reason: actual and formal argument lists differ in length
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldedGroovyPageView.java:75: error: method does not override or implement a method from a supertype
        @Override
        ^
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:88: error: cannot find symbol
                return super.createFallbackView(viewName);
                       ^
  symbol:   variable super
  location: class ScaffoldingViewResolver
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:58: error: method does not override or implement a method from a supertype
        @Override
        ^
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:97: error: cannot find symbol
                view.setApplicationContext(getApplicationContext());
                                           ^
  symbol:   method getApplicationContext()
  location: class ScaffoldingViewResolver
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:98: error: cannot find symbol
                view.setServletContext(getServletContext());
                                       ^
  symbol:   method getServletContext()
  location: class ScaffoldingViewResolver
/home/ec2-user/FatcaOne_0/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:99: error: cannot find symbol
                view.setTemplateEngine(templateEngine);
                                       ^
  symbol:   variable templateEngine
  location: class ScaffoldingViewResolver
/home/ec2-user/FatcaOne_0/target/work/plugins/cache-1.1.2/src/java/grails/plugin/cache/web/PageInfo.java:418: error: cannot find symbol
                        if (value instanceof Callback || value instanceof Callback[]) {
                                             ^
  symbol:   class Callback
  location: class PageInfo
/home/ec2-user/FatcaOne_0/target/work/plugins/cache-1.1.2/src/java/grails/plugin/cache/web/PageInfo.java:418: error: cannot find symbol
                        if (value instanceof Callback || value instanceof Callback[]) {
                                                                          ^
  symbol:   class Callback
  location: class PageInfo
11 errors


1 error

Answer 1

grails-set-version 对我来说似乎工作正常。

我认为您没有按照升级说明进行操作：

http://grails.org/doc/2.4.x/guide/upgradingFrom23.html

你需要升级你的脚手架版本（和一堆其他的东西），当然使用你创建项目的版本是可以的，但是如果你想升级到 2.4，你需要遵循这些说明。

Answer 2

您是否可能使用 grails-set-version 更改了 grails 版本？我发现这在 Ec2 上不起作用。您需要继续使用最初使用的 grails 版本。试试看。

Answer 3

当我将 Grails 应用程序从 2.3.11 移动到 Grails 2.5.6 时，出现以下错误：

Compilation error: startup failed:
Compile error during compilation with javac.
/Users/brippe/Projects/server/server/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldingViewResolver.java:42: error: no interface expected here
public class ScaffoldingViewResolver extends GrailsViewResolver {
                                             ^
/Users/brippe/Projects/server/server/target/work/plugins/scaffolding-2.0.3/src/java/org/codehaus/groovy/grails/scaffolding/view/ScaffoldedGroovyPageView.java:75: error: method does not override or implement a method from a supertype
    @Override

为了修复这些错误，我将脚手架插件从 2.0.3 更改为 2.1.2：

plugins {
        build: ..
        compile ":scaffolding:2.1.2" 
}

更改到 2.1.2 版本后，错误消失了。