如何解决Maven工程的"nested exception is java.lang.IllegalStateException"异常错误

2017-10-18 08:57:00 1.3万阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

Spring Boot启动报错Failed to process import candidates排查与解决方案 Spring Boot的自动装配机制是其核心特性之一，它通过@EnableAutoConfiguration和一系列@Conditional注解，在应用启动时自动配置所需的Bean。这一机制基于类路径下的依赖和配置文件，动态决定哪些配置类应该被加载。其技术价值在于极大地简化了Spring应用的配置工作，提升了开发效率。然而，在复杂的微服务架构中，依赖冲突、Bean定义重复或类加载器问题可能导致自动装配过程出现异常，进而引发应用启动失败。具体到工程实践，当整合Spring Session、Redis或引入特定阅读详情

现象:Web工程Login进去之后会不定时刷新页面.但系统不影响使用.输出Exception异常log.

<Log>



{"tag":"Maven_Test-pl","time":"2017/10/17 15:44:58.230","level":"ERROR","kind":"","tid":"","fid":"",E099999 : org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalStateException: getOutputStream() has already been called for this response



Caused by: java.lang.IllegalStateException: getOutputStream() has already been called for this response

	at org.apache.catalina.connector.Response.getWriter(Response.java:624)

	at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:211)

	at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335)

	at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:189)

	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244)

	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

	... 44 more



	0268D8C570C1F092D199031C9B1BA4E3	/getreports	0:0:0:0:0:0:0:1

user-agent    :[Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko]

method        :[POST]

content type  :[application/x-www-form-urlencoded; charset=UTF-8]

content length:[74]

request headers:[content-type=application/x-www-form-urlencoded; charset=UTF-8,accept=*/*,x-requested-with=XMLHttpRequest,referer=http://localhost:8080/Maven_Test/home,accept-language=en-US,en;q=0.8,ja;q=0.6,zh-Hans-CN;q=0.4,zh-Hans;q=0.2,accept-encoding=gzip, deflate,user-agent=Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko,host=localhost:8080,content-length=74,connection=Keep-Alive,cache-control=no-cache,cookie=JSESSIONID=0268D8C570C1F092D199031C9B1BA4E3; mbox=PC#1506488747119-884425.24_11#1509433793|session#1508224063796-450388#1508226053|check#true#1508224253; s_fid=5C5BA480303F72DA-0C18CB1F102AA4E4; s_nr=1508224401589-Repeat,authorization=Basic bWlkYXN1c2VyOm1pZGFzdXNlcg==]

request params:[reportCategory=99,reportStatus=99,tradeDate=2017/10/17,startDate=すべて]

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalStateException: getOutputStream() has already been called for this response

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)

	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)

	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at com.MainSource.earth.servlet.filter.AccessLogFilter.doFilter(AccessLogFilter.java:101)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at com.MainSource.earth.servlet.filter.ParameterAttackFilter.doFilter(ParameterAttackFilter.java:61)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at com.MainSource.earth.servlet.filter.RequestRestrictionFilter.doFilter(RequestRestrictionFilter.java:90)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at com.MainSource.earth.servlet.filter.EncodingFilter.doFilter(EncodingFilter.java:44)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at com.MainSource.earth.servlet.filter.PoxyFilter.doFilter(PoxyFilter.java:42)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at com.MainSource.earth.servlet.filter.ParameterLogFilter.doFilter(ParameterLogFilter.java:131)

	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)

	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)

	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)

	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)

	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)

	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)

	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)

	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)

	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)

	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)

	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

	at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.IllegalStateException: getOutputStream() has already been called for this response

	at org.apache.catalina.connector.Response.getWriter(Response.java:624)

	at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:211)

	at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335)

	at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:189)

	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1244)

	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)

	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)

	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)

	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

	... 44 more

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tianfang 2017-10-20

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引用 13 楼 andymu077 的回复:

知道是为什么了.FilterChain这个的doFilter执行的时候.产生了IllegalStateException异常

2楼+6楼说跟了

安迪 2017-10-19

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我整理了一下出错的再现条件和出问题的地方: 1.只在Controller里return的时候打个断点.debug的时候,如果F5刷新页面,然后在回到eclipse点击F8 继续执行.就会必定发生那个异常. 2.Return是页面路径式的字符串没有问题.如果是josn串的data给前台就会发生那个异常. 3.发生异常应该是在return之后的操作里边. 4.josn串没有问题.如果不是debug停在那里都会正常放回 *怀疑是有时候处理过慢在还没有返回的时候刷新页面就会出这种异常

安迪 2017-10-19

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引用 10 楼 tianfang 的回复:

filter.doFilter(req, res); filter中如何使用response的

这个是调用"javax.servlet.FilterChain"的doFilter方法.不是自己写的.

安迪 2017-10-19

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知道是为什么了.FilterChain这个的doFilter执行的时候.产生了IllegalStateException异常

tianfang 2017-10-18

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spring采用 response.getWriter(), 你在jsp中用 response.getOutputStream()

御命丹心君奉天 2017-10-18

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引用 3 楼 andymu077 的回复:

[quote=引用 1 楼 long_539437 的回复:] out.clearBuffer(); out = pageContext.pushBody(); 在调用response.getOutputStream()之前加上上面两代码，就ok了！

我的代码是:


try (OutputStream out = response.getOutputStream();
					FileInputStream inputToRead = new FileInputStream(fileToDownload);) {
				response.setContentType("application/x-pdf; charset=UTF-8");
				response.setCharacterEncoding("UTF-8");
				response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + fileName);
				response.setContentLength((int) fileToDownload.length());

				byte[] buffer = new byte[4096];
				int length;
				while ((length = inputToRead.read(buffer)) > -1) {
					out.write(buffer, 0, length);
				}
				logger.info("{}: file downloaded for customerId: {}",fileName,userAccount.getCustomerId());
			} catch (IOException e) {
				logger.error("downloadreport / IO exception");
			}

[/quote] 在处理下载文件转发的jsp页面加<%.....上面内容....%>

tianfang 2017-10-18

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产生这样的异常原因:是web容器生成的servlet代码中有out.write(""),这个和JSP中调用的 response.getOutputStream()产生冲突. 不能既调用 response.getOutputStream()，又调用response.getWriter(),无论先调用哪一个，在调用第二个时候应会抛出 IllegalStateException，在jsp中，out变量实际上是通过response.getWriter得到的，你的程序中既用了 response.getOutputStream，又用了out变量，故出现以上错误。

安迪 2017-10-18

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贴一下"AccessLogFilter.doFilter"方法的代码:


        @SuppressWarnings("unchecked")
	@Override
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain filter) throws IOException, ServletException {

		try {

			HttpServletRequest request = (HttpServletRequest) req;

			for (int i = 0; i < ignorePathList.size(); i++) {

				String ignorePath = ignorePathList.get(i);

				if (request.getServletPath().startsWith(ignorePath)) {

					filter.doFilter(req, res);

					return;
				}
			}

			String sessionId = "Invalidate session";

			try {

				HttpSession session = request.getSession();
				sessionId = session.getId();

			} catch (IllegalStateException e) {
			}

			MDC.put(MdcLogParameter.MDC_KIND.getId(), PARAM_LOG);
			StringBuilder sb = new StringBuilder(128);
			sb.append(sessionId).append(", ").append(request.getServletPath()).append(":").append(request.getMethod());
			sb.append(", request parameters:[");

			List<String> keys = new ArrayList<String>();
			keys.addAll(request.getParameterMap().keySet());
			int size = keys.size();
			int last = size - 1;

			for (int i = 0; i < size; i++) {

				String key = keys.get(i);
				// When parameter key contains in the maskingParams list, and not debugging mode, the value have to masking.
				String val = maskingParams.contains(key) && (! logger.isDebugEnabled()) ? MASK : request.getParameter(key);

				sb.append(key).append("='").append(val).append("'");
				if (i != last) sb.append(", ");
			}

			sb.append("]");

			logger.info(sb.toString());

		} finally {

			MDC.remove(MdcLogParameter.MDC_KIND.getId());
		}

		filter.doFilter(req, res);
	}

安迪 2017-10-18

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页面login之后不是每次都会报错.还是不定时的.至今没有找到能准确再现的方法.

安迪 2017-10-18

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引用 6 楼 tianfang 的回复:

spring采用 response.getWriter(), 你在jsp中用 response.getOutputStream()

但是我没有执行下载的时候只是login之后就会报错.而且报错的log里边写的文件名字是"com.MainSource.earth.servlet.filter.AccessLogFilter.doFilter(AccessLogFilter.java:101)" 也并不是我的那个controller.也会有关系吗?

御命丹心君奉天 2017-10-18

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out.clearBuffer(); out = pageContext.pushBody(); 在调用response.getOutputStream()之前加上上面两代码，就ok了！

安迪 2017-10-18

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引用 2 楼 tianfang 的回复:

产生这样的异常原因:是web容器生成的servlet代码中有out.write(""),这个和JSP中调用的 response.getOutputStream()产生冲突. 不能既调用 response.getOutputStream()，又调用response.getWriter(),无论先调用哪一个，在调用第二个时候应会抛出 IllegalStateException，在jsp中，out变量实际上是通过response.getWriter得到的，你的程序中既用了 response.getOutputStream，又用了out变量，故出现以上错误。

我实在controller里边写的.一个response.getOutputStream() 在这个controller里边没有用到response.getWriter啊

安迪 2017-10-18

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引用 1 楼 long_539437 的回复:

out.clearBuffer(); out = pageContext.pushBody(); 在调用response.getOutputStream()之前加上上面两代码，就ok了！

我的代码是:


try (OutputStream out = response.getOutputStream();
					FileInputStream inputToRead = new FileInputStream(fileToDownload);) {
				response.setContentType("application/x-pdf; charset=UTF-8");
				response.setCharacterEncoding("UTF-8");
				response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + fileName);
				response.setContentLength((int) fileToDownload.length());

				byte[] buffer = new byte[4096];
				int length;
				while ((length = inputToRead.read(buffer)) > -1) {
					out.write(buffer, 0, length);
				}
				logger.info("{}: file downloaded for customerId: {}",fileName,userAccount.getCustomerId());
			} catch (IOException e) {
				logger.error("downloadreport / IO exception");
			}

tianfang 2017-10-18

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filter.doFilter(req, res); filter中如何使用response的

如何解决Maven工程的"nested exception is java.lang.IllegalStateException"异常错误

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