我正在关注免费的在线书籍“Grails入门”(http://www.infoq.com/minibooks/grails-getting-started),并在尝试列出任何域类时遇到java.lang.ClassCastException。任何人都可以破译这个?Grails应用程序中的java.lang.ClassCastException
URI: /RaceTrack/runner/list
Class: java.lang.ClassCastException
Message: sun.proxy.$Proxy26 cannot be cast to org.springframework.orm.hibernate3.HibernateCallback
堆栈跟踪:
Line | Method
->> 15 | list in RunnerController.groovy
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
| 186 | doFilter in PageFragmentCachingFilter.java
| 63 | doFilter in AbstractFilter.java
| 1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
| 615 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^ 722 | run in java.lang.Thread
附加信息(约PageFragmentCachingFilter.java的186线)
183: if(method == null) {
184: log.debug("No cacheable method found for {}:{} {}",
185: new Object[] { request.getMethod(), request.getRequestURI(), getContext() });
186: chain.doFilter(request, response);
187: return;
188: }
189: Collection<CacheOperation> cacheOperations = cacheOperationSource.getCacheOperations(
附加信息(约AbstractFilter.java的63线):
60: try {
61: // NO_FILTER set for RequestDispatcher forwards to avoid double gzipping
62: if (filterNotDisabled(request)) {
63: doFilter(request, response, chain);
64: }
65: else {
66: chain.doFilter(req, res);
您可以请包含来自RunnerController的代码。鉴于它是堆栈跟踪的顶部,您应该从哪里开始寻找。 – David 2013-03-21 02:20:27
尝试grails干净的力量:) – uchamp 2013-03-21 05:43:46
当我从想法运行,但不是从命令行(grails run-app)运行时,我注意到了这个问题。也许这与环境有关?我们的生产版本使用远程数据库,并且开发人员使用hsqldb。 – nycynik 2013-07-09 19:31:19