java 解决异常 2 字节的 UTF-8 序列的字节2 无效的问题
java解决异常2字节的UTF-8序列的字节2无效的问题
最近做项目，遇到异常2字节的UTF-8序列的字节2无效的问题，上网找了下资料，这里记录下解决方法，有遇到同样问题的大家，可以看下
详细异常：
十二月08,20157:16:55下午org.apache.catalina.core.StandardWrapperValveinvoke 严重:Servlet.service()forservlet[jsp]incontextwithpath[/test]threwexception[org.apache.jasper.JasperException:XMLparsingerroronfileorg.apache.tomcat.util.scan.MergedWebXml]withrootcause com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceException:2字节的UTF-8序列的字节2无效。 atcom.sun.org.apache.xerces.internal.impl.io.UTF8Reader.invalidByte(UTF8Reader.java:687) atcom.sun.org.apache.xerces.internal.impl.io.UTF8Reader.read(UTF8Reader.java:372) atcom.sun.org.apache.xerces.internal.impl.XMLEntityScanner.load(XMLEntityScanner.java:1753) atcom.sun.org.apache.xerces.internal.impl.XMLEntityScanner.peekChar(XMLEntityScanner.java:497) atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2710) atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) atcom.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117) atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510) atcom.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848) atcom.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777) atcom.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) atcom.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:243) atcom.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:347) atorg.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:96) atorg.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:83) atorg.apache.jasper.compiler.JspConfig.init(JspConfig.java:231) atorg.apache.jasper.compiler.JspConfig.findJspProperty(JspConfig.java:290) atorg.apache.jasper.compiler.Compiler.generateJava(Compiler.java:113) atorg.apache.jasper.compiler.Compiler.compile(Compiler.java:365) atorg.apache.jasper.compiler.Compiler.compile(Compiler.java:345) atorg.apache.jasper.compiler.Compiler.compile(Compiler.java:332) atorg.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:594) atorg.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:342) atorg.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391) atorg.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) atjavax.servlet.http.HttpServlet.service(HttpServlet.java:722) atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306) atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) atcom.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244) atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) atorg.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter.doFilter(StrutsExecuteFilter.java:90) atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244) atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) atorg.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:91) atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244) atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) atcom.huaqin.dmt.filter.Acl.doFilter(Acl.java:251) atorg.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) atorg.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244) atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) atcom.huaqin.dmt.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:38) atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:244) atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240) atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) atorg.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:550) atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:380) atorg.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243) atorg.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) atorg.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166) atorg.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288) atjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) atjava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) atjava.lang.Thread.run(Thread.java:744)
解决方法：
在tomcat的bin目录下有文件catalina.bat
找到这行：setJAVA_OPTS=%JAVA_OPTS%%LOGGING_CONFIG%
在它上一行加入：setJAVA_OPTS=-server-Dfile.encoding=utf-8
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