bug in PathVariables

[klgec]

AndServer/api/src/main/java/com/yanzhenjie/andserver/framework/handler/MappingHandler.java

Line 146 in 23a7c15

key = key.substring(1, key.length() - 1);

the tokenized path variables are chopped by 1 char on both ends. /hello/{test} will make tokens: "ell" and "test".
this is why 1-char paths fail to even function, like: /b/a/{test}.

Fix:

if (key.startsWith("{") && key.endsWith("}"))
    key = key.substring(1, key.length() - 1);