打开tomcat下doc工程/index.html文件——Configuration—-HTTP 搜索 URIEncoding
file:///D:/Software/apache-tomcat-9.0.8/webapps/docs/config/http.html
tomcat9的是
This specifies the character encoding used to decode the URI bytes, after %xx decoding the URL. If not specified, UTF-8 will be used unless the org.apache.catalina.STRICT_SERVLET_COMPLIANCE system property is set to true in which case ISO-8859-1 will be used.
翻译过来说是默认使用了UTF-8编码
file:///D:/Software/apache-tomcat-7.0.88/webapps/docs/config/http.html
tomcat7的是
This specifies the character encoding used to decode the URI bytes, after %xx decoding the URL. If not specified, ISO-8859-1 will be used.
翻译过来说是默认使用了ISO-8859-1编码