tomcat报错Error parsing HTTP request header?报错

tomcat 7.0.75，jdk1.7.0.80，运行中报错Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986

信息: Error parsing HTTP request header
 Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level.
 java.lang.IllegalArgumentException: Invalid character found in the request target. The 
 valid characters are defined in RFC 7230 and RFC 3986
	at org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.
    java:189)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor
    .java:1000)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol
    .java:637)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)

tomcat配置：

<Connector 
   	connectionTimeout="20000" 
   	port="8080" 
   	protocol="HTTP/1.1" 
   	redirectPort="8443"
  	URIEncoding="UTF-8"
/>