异常：illegal to have multiple occurrences of 'contentType' with different values

Error rendering view [org.springframework.web.servlet.view.JstlView: name 'home/home'; URL [/WEB-INF/views/home/home.jsp]] in DispatcherServlet with name 'springMvc'org.apache.jasper.JasperException: /WEB-INF/views/home/../common/taglibs.jsp (line: 1, column: 2) Page directive: illegal to have multiple occurrences of 'contentType' with different values (old: text/html;charset=UTF-8, new: text/html; charset=UTF-8)at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:275)at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:107)at org.apache.jasper.compiler.Validator$DirectiveVisitor.visit(Validator.java:135)at org.apache.jasper.compiler.Node$PageDirective.accept(Node.java:571)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)at org.apache.jasper.compiler.Node$Root.accept(Node.java:464)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)at org.apache.jasper.compiler.Validator$DirectiveVisitor.visit(Validator.java:101)at org.apache.jasper.compiler.Node$IncludeDirective.accept(Node.java:635)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)at org.apache.jasper.compiler.Node$Root.accept(Node.java:464)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Validator.validateDirectives(Validator.java:1813)at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:358)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:338)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:325)at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363)at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2521)at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2510)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:745)[DEBUG] 2017-12-14 15:01:45,665 method:org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:993)Could not complete requestorg.apache.jasper.JasperException: /WEB-INF/views/home/../common/taglibs.jsp (line: 1, column: 2) Page directive: illegal to have multiple occurrences of 'contentType' with different values (old: text/html;charset=UTF-8, new: text/html; charset=UTF-8)at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41)at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:275)at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:107)at org.apache.jasper.compiler.Validator$DirectiveVisitor.visit(Validator.java:135)at org.apache.jasper.compiler.Node$PageDirective.accept(Node.java:571)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)at org.apache.jasper.compiler.Node$Root.accept(Node.java:464)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)at org.apache.jasper.compiler.Validator$DirectiveVisitor.visit(Validator.java:101)at org.apache.jasper.compiler.Node$IncludeDirective.accept(Node.java:635)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2428)at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2434)at org.apache.jasper.compiler.Node$Root.accept(Node.java:464)at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2376)at org.apache.jasper.compiler.Validator.validateDirectives(Validator.java:1813)at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:358)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:338)at org.apache.jasper.compiler.Compiler.compile(Compiler.java:325)at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363)at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2521)at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2510)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:745)

原因：

被包含的jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

包含的jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %><%@ include file="../common/taglibs.jsp" %>

可以看到charset前面多了一个空格，去掉即可