ajax级联操作的时候，总是报这个错误

Question

报的错

org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: Failed to invoke handler method [public void com.qdzq.wlpt.controller.admin.CydController.con(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse,java.lang.String,java.lang.String) throws java.sql.SQLException,java.io.IOException]; nested exception is java.lang.IllegalStateException: No parameter name specified for argument of type [java.lang.String], and no parameter name information found in class file either.

Answer 1

java入参那里写@RequestParam("name") String name,@RequestParam("id")String id