Solo 博客系统长时间开启后，后台无法访问临时解决方案

解决

最后问题解决的有点出乎意料，与下面描述的报错其实没有关系（当然下面也是莫名其妙的 BUG）

[DEBUG]-[2017-12-05 13:45:58]-[org.b3log.solo.SoloServletListener:126]: Request [
method=OPTIONS,

浏览器使用了 options 方式去请求登录，应该是 post
于是给 login 方法增加了 options 方法的支持，为什么会用 options 还要再看

@RequestProcessing(value = "/login", method = {HTTPRequestMethod.POST,HTTPRequestMethod.OPTIONS}) public void login(final HTTPRequestContext context) {

描述

环境：jdk1.8，tomcat9.0.1，H2 数据库
问题：服务长时间开启后，后台无法登录，login 方法报 404

后台报错

[ERROR]-[2017-12-02 10:35:17]-[org.b3log.solo.processor.ArticleProcessor:1101]:
java.lang.NullPointerException
        at org.b3log.solo.repository.impl.ArticleRepositoryImpl.getNextArticle(ArticleRepositoryImpl.java:216)
        at org.b3log.solo.repository.impl.ArticleRepositoryImpl_$$_jvst2b4_3f._d16getNextArticle(ArticleRepositoryImpl_$$_jvst2b4_3f.java)
        at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.b3log.latke.ioc.bean.JavassistMethodHandler.invoke(JavassistMethodHandler.java:106)
        at org.b3log.solo.repository.impl.ArticleRepositoryImpl_$$_jvst2b4_3f.getNextArticle(ArticleRepositoryImpl_$$_jvst2b4_3f.java)
        at org.b3log.solo.service.ArticleQueryService.getNextArticle(ArticleQueryService.java:911)
        at org.b3log.solo.service.ArticleQueryService_$$_jvst2b4_1e._d16getNextArticle(ArticleQueryService_$$_jvst2b4_1e.java)
        at sun.reflect.GeneratedMethodAccessor122.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.b3log.latke.ioc.bean.JavassistMethodHandler.invoke(JavassistMethodHandler.java:106)
        at org.b3log.solo.service.ArticleQueryService_$$_jvst2b4_1e.getNextArticle(ArticleQueryService_$$_jvst2b4_1e.java)
        at org.b3log.solo.processor.ArticleProcessor.prepareShowArticle(ArticleProcessor.java:1287)
        at org.b3log.solo.processor.ArticleProcessor.showArticle(ArticleProcessor.java:1078)
        at org.b3log.solo.processor.ArticleProcessor_$$_jvst2b4_f._d16showArticle(ArticleProcessor_$$_jvst2b4_f.java)
        at sun.reflect.GeneratedMethodAccessor120.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

04-Dec-2017 07:14:47.861 INFO [http-nio-80-exec-17] org.apache.coyote.http11.Http11Processor.service Error parsing HTTP request header
 Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.
 java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens
        at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:410)
        at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
        at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
        at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)

临时解决方案

给 org.b3log.solo.repository.impl.ArticleRepositoryImpl.getNextArticle 方法添加非空校验

更新

获取上一篇又开始报错，咱不知道无效的 articleId 从哪来的，增加了日志信息，并把日志模式调成了 trace，有问题再更新

[ERROR]-[2017-12-04 14:42:29]-[org.b3log.solo.processor.ArticleProcessor:1101]:
java.lang.NullPointerException
        at org.b3log.solo.repository.impl.ArticleRepositoryImpl.getPreviousArticle(ArticleRepositoryImpl.java:187)
        at org.b3log.solo.repository.impl.ArticleRepositoryImpl_$$_jvst2b4_3f._d17getPreviousArticle(ArticleRepositoryImpl_$$_jvst2b4_3f.java)
        at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.b3log.latke.ioc.bean.JavassistMethodHandler.invoke(JavassistMethodHandler.java:106)
        at org.b3log.solo.repository.impl.ArticleRepositoryImpl_$$_jvst2b4_3f.getPreviousArticle(ArticleRepositoryImpl_$$_jvst2b4_3f.java)
        at org.b3log.solo.service.ArticleQueryService.getPreviousArticle(ArticleQueryService.java:936)
        at org.b3log.solo.service.ArticleQueryService_$$_jvst2b4_1e._d17getPreviousArticle(ArticleQueryService_$$_jvst2b4_1e.java)
        at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)

issue 地址

https://github.com/b3log/solo/issues/12377