做文件上传下载时报这个错com.alibaba.fastjson.JSONException: illegal identifier : \
::25.536 [http-nio--exec-] DEBUG c.i.e.m.I.insertDataEmebeding - <== Updates:
::29.105 [http-nio--exec-] ERROR c.i.e.c.CaseArchiveController - -----------导出数据失败------------
com.alibaba.fastjson.JSONException: illegal identifier : \
at com.alibaba.fastjson.parser.JSONLexerBase.scanSymbolUnQuoted(JSONLexerBase.java:)
at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:)
at com.alibaba.fastjson.parser.DefaultJSONParser.parse(DefaultJSONParser.java:)
at com.alibaba.fastjson.parser.DefaultJSONParser.parse(DefaultJSONParser.java:)
at com.alibaba.fastjson.JSON.parse(JSON.java:)
at com.alibaba.fastjson.JSON.parse(JSON.java:)
at com.iflytek.evidence.controller.CaseArchiveController.uploadCaseArchive(CaseArchiveController.java:)
at com.iflytek.evidence.controller.CaseArchiveController$$FastClassBySpringCGLIB$$.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:)
at com.iflytek.evidence.aop.APIProxy.aroundAdvice(APIProxy.java:)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:)
at com.iflytek.evidence.controller.CaseArchiveController$$EnhancerBySpringCGLIB$$b0c537c8.uploadCaseArchive(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:)
at org.springframework.boot.web.support.ErrorPageFilter.access$(ErrorPageFilter.java:)
at org.springframework.boot.web.support.ErrorPageFilter$.doFilterInternal(ErrorPageFilter.java:)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:)
at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:)
at java.lang.Thread.run(Unknown Source)
如果其他没问题的话，这个有可能是代码的编码问题，修改一下Eclipse编码就好了。
修改步骤如下
1.在菜单导航栏上Window-->Preferences 打开"首选项"对话框，左侧导航树，导航到 General-->Workspace
2.Windows 7平台默认为GBK，简体中文操作系统Windows XP、Windows 2000简体中文的缺省编码是GB18030，Linux平台默认为UTF-8
那么在此工作空间中建立的工程编码是GBK，工程中建立的java文件也是GBK。
可以看到默认的是GBK编码格式,我们修改为UTF-8编码格式或者是你需要的编码格式
点击Apply,点击OK.
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