url中含中文导致The valid characters are defined in RFC 7230 and RFC 3986解决办法

报错如下：

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.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:471) ~[tomcat-embed-core-8.5.11.jar:8.5.11]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:667) ~[tomcat-embed-core-8.5.11.jar:8.5.11]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.11.jar:8.5.11]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798) [tomcat-embed-core-8.5.11.jar:8.5.11]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434) [tomcat-embed-core-8.5.11.jar:8.5.11]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.11.jar:8.5.11]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_45]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_45]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.11.jar:8.5.11]
	at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]

自己的代码如下：

function downloadLog(logName){
    location.href=basePath + "/demp/common/downloadDeviceLog.do?logName="+logName;
}

检查之后发现是因为url传的参数中有中文，通过查找在url中加了encodeURI这个方法，问题就就解决了。改过之后如下(两种写法都ok)：

function downloadLog(logName){
    location.href=basePath + "/demp/common/downloadDeviceLog.do?logName="+encodeURI(logName);
    //location.href=encodeURI(basePath + "/demp/common/downloadDeviceLog.do?logName="+logName);
}

备注：还有一种方法是在前端先用base64编码，后端用base64解码，我找到了两篇文章，里面很详细，大家可以参考

1.《JS实现密码加密》包含base64加密解密、md5加密、sha1加密

2.《java base64编码 加密和解密（切记注意乱码问题）》

本文参考《IE上的The valid characters are defined in RFC 7230 and RFC 3986坑》 ，想详细了解报错的课参考此文章