Add SysUserRepository.java

SysUserRepository.java

@@ -0,0 +1,12 @@
+//SysUser.java的接口
+package com.power.travel.repository;
+
+import com.power.travel.model.SysUser;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface SysUserRepository extends JpaRepository<SysUser, Integer>, JpaSpecificationExecutor<SysUser> {
+    SysUser findSysUserByUsername(String username);
+}