Question

springMVC+mybatis整合项目中，controller中调用service方法，出现的问题；这个怎么解决？

HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoSuchMethodError: sy.service.UserService.getAll3()Ljava/util/List;
type Exception report
message Handler processing failed; nested exception is java.lang.NoSuchMethodError: sy.service.UserService.getAll3()Ljava/util/List;
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoSuchMethodError: sy.service.UserService.getAll3()Ljava/util/List;
org.springframework.web.servlet.DispatcherServlet.triggerAfterCompletionWithError(DispatcherServlet.java:1259)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:822)
javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

Answer 1

nested exception is java.lang.NoSuchMethodError: sy.service.UserService.getAll3()Ljava/util/List;
没有这样的方法，你要检查下service中是否存在该方法。

Answer 2

文本 xml 中的filter 有问题吧

追问

public interface UserService {
public List getAll3();
public User getUserById();

}
这是service，我调用getUserById(String id)这个方法能成功，其他方法都报这个错，

追答

spring 的注入 有问题吗 ？？ 用得到的类 都要注入啊

Answer 3

NoSuchMethodError: sy.service.UserService.getAll3()Ljava/util/List;没有该方法

Answer 4

没有找到service中getAll3() 返回值为List的方法；java.lang.NoSuchMethodError 访法不匹配