本文解析了一个关于JSP页面中contentType指令重复定义导致的错误，详细介绍了错误的原因及解决方法，强调了保持所有JSP页面头部一致的重要性。
标题
严重: Servlet.service() for servlet [jsp] in context with path [] threw exception [/front/common/close.jsp (line: 8, column: 1) Page directive: illegal to have multiple occurrences of ‘contentType’ with different values (old: text/html; charset=UTF-8, new: text/html; UTF-8)] with root cause
错误代码
org.apache.jasper.JasperException: /front/common/close.jsp (line: 8, column: 1) Page directive: illegal to have multiple occurrences of ‘contentType’ with different values (old: text/html; charset=UTF-8, new: text/html; UTF-8)
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:443)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:237)
at org.apache.jasper.compiler.Validator
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DirectiveVisitor.visit(Validator.java:135) at org.apache.jasper.compiler.Node
DirectiveVisitor.visit(Validator.java:135)atorg.apache.jasper.compiler.NodePageDirective.accept(Node.java:589)
at org.apache.jasper.compiler.Node
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Nodes.visit(Node.java:2392) at org.apache.jasper.compiler.Node
Nodes.visit(Node.java:2392)atorg.apache.jasper.compiler.NodeVisitor.visitBody(Node.java:2444)
at org.apache.jasper.compiler.Node
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Visitor.visit(Node.java:2450) at org.apache.jasper.compiler.Node
Visitor.visit(Node.java:2450)atorg.apache.jasper.compiler.NodeRoot.accept(Node.java:474)
at org.apache.jasper.compiler.Node
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Nodes.visit(Node.java:2392) at org.apache.jasper.compiler.Node
Nodes.visit(Node.java:2392)atorg.apache.jasper.compiler.NodeVisitor.visitBody(Node.java:2444)
at org.apache.jasper.compiler.Validator
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DirectiveVisitor.visit(Validator.java:101) at org.apache.jasper.compiler.Node
DirectiveVisitor.visit(Validator.java:101)atorg.apache.jasper.compiler.NodeIncludeDirective.accept(Node.java:653)
at org.apache.jasper.compiler.Node
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Nodes.visit(Node.java:2392) at org.apache.jasper.compiler.Node
Nodes.visit(Node.java:2392)atorg.apache.jasper.compiler.NodeVisitor.visitBody(Node.java:2444)
at org.apache.jasper.compiler.Node
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Visitor.visit(Node.java:2450) at org.apache.jasper.compiler.Node
Visitor.visit(Node.java:2450)atorg.apache.jasper.compiler.NodeRoot.accept(Node.java:474)
at org.apache.jasper.compiler.Node
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Nodes.visit(Node.java:2392) at org.apache.jasper.compiler.Node
Nodes.visit(Node.java:2392)atorg.apache.jasper.compiler.NodeVisitor.visitBody(Node.java:2444)
at org.apache.jasper.compiler.Validator
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DirectiveVisitor.visit(Validator.java:101) at org.apache.jasper.compiler.Node
DirectiveVisitor.visit(Validator.java:101)atorg.apache.jasper.compiler.NodeIncludeDirective.accept(Node.java:653)
at org.apache.jasper.compiler.Node
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Nodes.visit(Node.java:2392) at org.apache.jasper.compiler.Node
Nodes.visit(Node.java:2392)atorg.apache.jasper.compiler.NodeVisitor.visitBody(Node.java:2444)
at org.apache.jasper.compiler.Node
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Visitor.visit(Node.java:2450) at org.apache.jasper.compiler.Node
Visitor.visit(Node.java:2450)atorg.apache.jasper.compiler.NodeRoot.accept(Node.java:474)
at org.apache.jasper.compiler.Node
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Nodes.visit(Node.java:2392) at org.apache.jasper.compiler.Validator.validateDirectives(Validator.java:1805) at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:196) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:374) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:341) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:660) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:364) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115) at org.apache.coyote.AbstractProtocol
Nodes.visit(Node.java:2392)atorg.apache.jasper.compiler.Validator.validateDirectives(Validator.java:1805)atorg.apache.jasper.compiler.Compiler.generateJava(Compiler.java:196)atorg.apache.jasper.compiler.Compiler.compile(Compiler.java:374)atorg.apache.jasper.compiler.Compiler.compile(Compiler.java:354)atorg.apache.jasper.compiler.Compiler.compile(Compiler.java:341)atorg.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:660)atorg.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:364)atorg.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)atorg.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:731)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)atorg.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)atorg.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)atorg.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)atorg.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)atorg.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)atorg.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)atorg.apache.coyote.AbstractProtocolAbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.AprEndpoint
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SocketProcessor.doRun(AprEndpoint.java:2555)atorg.apache.tomcat.util.net.AprEndpointSocketProcessor.run(AprEndpoint.java:2544)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor
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at java.lang.Thread.run(Unknown Source)
解决方法
- close.jsp的头部和其他的jsp页面的头部不一样，text/html; charset=UTF-8有的有空格有的没有，所以会出现报错
- 我把所有的头部保持一样就OK啦
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