亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱

編寫用戶表接口

1、前置知識

controller：控制層
service：業(yè)務層
repository：數(shù)據(jù)控制訪問層

2、編寫接口步驟

3、編寫三層結(jié)構(gòu)代碼

• 控制層（SysUserController）

package edu.friday.controller;
import edu.friday.common.base.BaseController;
import edu.friday.common.result.RestResult;
import edu.friday.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
 * 用戶表 控制層
 * */
@RestController
@RequestMapping("/system/user")
public class SysUserController extends BaseController {
    @Autowired
    SysUserService sysUserService;
    /**
     * 顯示所有用戶
     * */
    @GetMapping("/list")
    public RestResult list(){
        return RestResult.success("操作成功！",sysUserService.selectUserList());
    }
}

• 業(yè)務層
  業(yè)務層分為業(yè)務層接口（SysUserService）和業(yè)務層實現(xiàn)（SysUserServiceImpl）

package edu.friday.service;
import edu.friday.model.SysUser;
import java.util.List;
/**
 * 用戶表 業(yè)務層接口
 * */
public interface SysUserService {
    List<SysUser> selectUserList();
}

package edu.friday.service.impl;
import edu.friday.model.SysUser;
import edu.friday.repository.SysUserRepository;
import edu.friday.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
 * 用戶表 業(yè)務層
 * */
@Service
public class SysUserServiceImpl implements SysUserService {
    @Autowired
    SysUserRepository sysUserRepository;
    /**
     * 顯示所有用戶列表
     * */
    @Override
    public List<SysUser> selectUserList() {
        return sysUserRepository.findAll();
    }
}

• 數(shù)據(jù)控制訪問層（SysUserRepository）

package edu.friday.repository;
import edu.friday.model.SysUser;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
/**
 * 用戶表 數(shù)據(jù)層
 * */
@Repository
public interface SysUserRepository extends JpaRepository<SysUser,Long> {
}

• 調(diào)試工具運行結(jié)果