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demo/src/main/java/com/example/demo/DemoApplication.java

@@ -5,7 +5,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.web.servlet.ServletComponentScan;
 
 @SpringBootApplication
-//@ServletComponentScan("com.example.demo")
+@ServletComponentScan("com.example.demo")
 //@MapperScan("com.example.demo.Dao")
 public class DemoApplication {
     public static void main(String[] args) {

demo/src/main/java/com/example/demo/loginService/API/impl/UserServiceImpl.java

@@ -17,6 +17,8 @@ public class UserServiceImpl extends UserService{
         return this.UserMapper.selectUserByuserName(userName);
     }
     @Transactional(propagation=Propagation.REQUIRED,readOnly = true)
+    public int selectUserCountByNameAndPwd(long userNum,String userPwd){return this.UserMapper.selectPwd(userNum,userPwd);}
+    @Transactional(propagation=Propagation.REQUIRED,readOnly = true)
     public User selectUserBytelephoneNum(String telephoneNum){
         return this.UserMapper.selectUserBytelephoneNum(telephoneNum);
     }

demo/src/main/java/com/example/demo/loginService/UserController.java

@@ -1,5 +1,7 @@
 package com.example.demo.loginService;
 
+import com.example.demo.Dao.managerMapper;
+import com.example.demo.Dao.userMapper;
 import com.example.demo.bean.User;
 import com.example.demo.loginService.API.impl.UserServiceImpl;
 import org.springframework.beans.factory.annotation.Autowired;