tomcat升级时遇到的无效字符错误

tomcat升级时遇到的无效字符错误，怎么解决？？？？

tomcat升级，替换tomcat下的lib文件夹到最新版本的tomcat7.0.90，连接BI时报错
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:194)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1049)
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)

解决办法：在tomcat/conf/server.xml中加入以下配置：

relaxedQueryChars="|[]{}^"