[依赖](spring/%E4%BE%9D%E8%B5%96.md) [AccountService接口](AccountService%E6%8E%A5%E5%8F%A3.md) [AccountServiceImpl](AccountServiceImpl.md) [测试代码](spring/%E6%B5%8B%E8%AF%95%E4%BB%A3%E7%A0%81.md)