有时候项目启动报错，有时不会，不影响使用，求解答

Question

WARN [org.apache.commons.httpclient.HttpMethodBase] - Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.
org.codehaus.jackson.JsonParseException: Unexpected end-of-input: was expecting closing quote for a string value
at [Source: java.io.StringReader@5948da82; line: 1, column: 49237]
at org.codehaus.jackson.JsonParser._constructError(JsonParser.java:1213)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportError(JsonParserMinimalBase.java:375)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportInvalidEOF(JsonParserMinimalBase.java:318)
at org.codehaus.jackson.impl.ReaderBasedParser._finishString2(ReaderBasedParser.java:743)
at org.codehaus.jackson.impl.ReaderBasedParser._finishString(ReaderBasedParser.java:731)
at org.codehaus.jackson.impl.ReaderBasedParser.getText(ReaderBasedParser.java:85)
at org.codehaus.jackson.map.deser.StdDeserializer$StringDeserializer.deserialize(StdDeserializer.java:654)
at org.codehaus.jackson.map.deser.StdDeserializer$StringDeserializer.deserialize(StdDeserializer.java:641)
at org.codehaus.jackson.map.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:230)
at org.codehaus.jackson.map.deser.SettableBeanProperty$MethodProperty.deserializeAndSet(SettableBeanProperty.java:334)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:495)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:351)
at org.codehaus.jackson.map.deser.CollectionDeserializer.deserialize(CollectionDeserializer.java:119)
at org.codehaus.jackson.map.deser.CollectionDeserializer.deserialize(CollectionDeserializer.java:96)
at org.codehaus.jackson.map.deser.CollectionDeserializer.deserialize(CollectionDeserializer.java:25)
at org.codehaus.jackson.map.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:230)
at org.codehaus.jackson.map.deser.SettableBeanProperty$MethodProperty.deserializeAndSet(SettableBeanProperty.java:334)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:495)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:351)
at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2129)
at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1393)
at com.liantuo.crm.client.base.AbstractReply.jsonToReply(AbstractReply.java:76)
at com.liantuo.crm.client.base.AbstractClient.getReplyFromCRM(AbstractClient.java:63)
at com.liantuo.crm.client.business.news.NewsInfoClient.getNewsInfoList(NewsInfoClient.java:21)
at com.liantuo.apps.manage.web.newsInfo.ListNewsInfoController.handleRequest(ListNewsInfoController.java:106)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:119)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:55)
at com.liantuo.common.sitemesh.filter.VelocityPageFilter.doFilter(VelocityPageFilter.java:32)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.liantuo.util.file.xss.XSSFilter.doFilter(XSSFilter.java:69)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:876)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:612)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1777)
at java.lang.Thread.run(Thread.java:662)

Answer 1

随便搜一下就知道，这个是httpclient报的错，返回的数据有长有短，长到超过一定值的时候就会报这个错。

HttpClient建议使用InputStream getResponseBodyAsStream()代替byte[] getResponseBody()。对于返回结果很大或无法预知的情况，就需要使用InputStream getResponseBodyAsStream()，避免byte[] getResponseBody()可能带来的内存的耗尽问题。

返回的HTTP头没有指定contentLength，或者是contentLength大于上限（默认是1M）。如果能确定返回结果的大小对程序没有显著影响，这个WARN就可以忽略，可以在日志的配置中把HttpClient的日志级别调到ERROR，不让它报出来。

从你的代码中，可以从以下几行找问题。
at com.liantuo.crm.client.base.AbstractReply.jsonToReply(AbstractReply.java:76)
at com.liantuo.crm.client.base.AbstractClient.getReplyFromCRM(AbstractClient.java:63)
at com.liantuo.crm.client.business.news.NewsInfoClient.getNewsInfoList(NewsInfoClient.java:21)
at com.liantuo.apps.manage.web.newsInfo.ListNewsInfoController.handleRequest(ListNewsInfoController.java:106)