Ambiguous mapping found. Cannot map 'xx' bean method异常

java.lang.IllegalStateException: Ambiguous mapping found. Cannot map ‘xxxController’ bean method
public java.lang.String com******ApplyTestController.toCashier(java.lang.Long,java.lang.Long,java.lang.String,java.lang.String)
to {[/payTest/toCashier],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}: There is already ‘xxxController’ bean method
public java.lang.String com.******estController.toCashier(java.lang.Long,java.lang.Long,java.lang.String,java.lang.Long) mapped.