春季更改應用程序行為：從Java代理到CGLIB代理

Question

該應用程序基於JHipster。 這集成了彈簧4.2（彈簧保護套，彈簧安全裝置，彈簧MVC /彈簧，彈簧數據JPA）。 我必須將Jhipster“框架”應用程序從基於Java的代理轉變為CGLIB代理。 在“ DatabaseConfiguration.java”設置中進行配置很容易：

@EnableTransactionManagement（proxyTargetClass = true）

因此，現在我可以使用實現而不是帶有@Inject批注的接口了。 我需要這個。

問題是整個JHipster應用程序沒有為此設置參數。 因此，當我啟動應用程序（運行良好）時，由於此CGLIB配置，在嘗試填寫登錄表單（單擊按鈕）后嘗試登錄時，我在Spring安全框架中遇到了NullPointException。 （如果我回滾，它會像以前一樣工作）。

我需要在Jhispter中“重構”什么才能在整個應用程序中使用CGLIB。

謝謝你的幫助。

通過GUI登錄時出現堆棧跟蹤錯誤：

2016-05-11 14:35:21.837 DEBUG 1528 --- [nio-8080-exec-1] eEncryptablePropertySourcesPostProcessor : Application Event Raised: AuditApplicationEvent
2016-05-11 14:35:21.837 DEBUG 1528 --- [nio-8080-exec-1] eEncryptablePropertySourcesPostProcessor : Application Event Raised: AuthenticationSuccessEvent
2016-05-11 14:35:21.837 DEBUG 1528 --- [nio-8080-exec-1] eEncryptablePropertySourcesPostProcessor : Application Event Raised: SessionFixationProtectionEvent
2016-05-11 14:35:21.837 DEBUG 1528 --- [nio-8080-exec-1] eEncryptablePropertySourcesPostProcessor : Application Event Raised: SessionFixationProtectionEvent
2016-05-11 14:35:21.837 DEBUG 1528 --- [nio-8080-exec-1] c.t.s.CustomPersistentRememberMeServices : Did not send remember-me cookie (principal did not set parameter 'null')
2016-05-11 14:35:21.853 ERROR 1528 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception

java.lang.NullPointerException: null
    at org.springframework.security.web.authentication.rememberme.AbstractRememberMeServices.loginSuccess(AbstractRememberMeServices.java:273) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.successfulAuthentication(AbstractAuthenticationProcessingFilter.java:323) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:245) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at com.tess2i.web.filter.CsrfCookieGeneratorFilter.doFilterInternal(CsrfCookieGeneratorFilter.java:38) ~[classes/:na]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:120) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176) ~[spring-security-web-4.0.2.RELEASE.jar:4.0.2.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:87) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_72]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_72]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.0.30.jar:8.0.30]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_72]

2016-05-11 14:35:21.853 DEBUG 1528 --- [nio-8080-exec-1] eEncryptablePropertySourcesPostProcessor : Application Event Raised: ServletRequestHandledEvent
2016-05-11 14:35:21.853 DEBUG 1528 --- [nio-8080-exec-1] eEncryptablePropertySourcesPostProcessor : Application Event Raised: ServletRequestHandledEvent
2016-05-11 14

Answer 1

• CGLIB已經在使用JHipster / Spring Boot。 嘗試在沒有實現的情況下生成服務，您將看到它起作用。 就像您說的那樣，您想直接使用實現而不是接口，這似乎是一種誤解，因為我們在項目中一直都這樣做（事實上，這是Spring Beans的默認用法）。
• 實際上，對於具有接口的情況，您可以強制使用具有proxyTargetClass = true CGLIB代理而不是JDK代理，但是從技術上講，這對您沒有任何影響。 我什至認為最好使用JDK代理進行調試，但這當然取決於您。 我的觀點是，這不應像您一樣觸發任何錯誤。 我不明白這怎么會觸發AbstractRememberMeServices中的NPE，這對我來說似乎是另一個問題。