一、设置cookie报非法参数异常

java.lang.IllegalArgumentException: Control character: 968f in cookie value or attribute.

         at org.apache.tomcat.util.http.CookieSupport.isV0Separator(CookieSupport.java:157)

         at org.apache.tomcat.util.http.CookieSupport.isV0Token(CookieSupport.java:182)

         at org.apache.tomcat.util.http.ServerCookie.appendCookieValue(ServerCookie.java:186)

         at org.apache.catalina.connector.Response.generateCookieString(Response.java:1070)

         at org.apache.catalina.connector.Response.addCookie(Response.java:1012)

         at org.apache.catalina.connector.ResponseFacade.addCookie(ResponseFacade.java:380)

         at com.asiainfo.retail.auth.filter.IsLoginFilter.setCookie(IsLoginFilter.java:141)

         at com.asiainfo.retail.auth.filter.IsLoginFilter.doFilter(IsLoginFilter.java:108)

         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:121)

         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

         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:220)

         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)

         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)

         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)

         at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1080)

         at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)

         at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)

         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)

　　该报错是由于这个中文的编码的问题中文采用的是unicode编码，而英文采用的是ASCII编码，所以当Cookie保存中文的时候需要对中文进行编码，而且从Cookie中取出内容的时候也要进行解码，编码和解码可以使用：

URLEncoder.encode(name, "utf-8");

URLDecoder.decode(cookies[i].getName(), "utf-8");

解决设置cookie报非法参数异常问题。