java后端面试题.zip

package com.hnust.malldemo.controller; import com.hnust.malldemo.common.BaseResponse; import com.hnust.malldemo.common.ErrorCode; import com.hnust.malldemo.model.dto.orders.OrdersAddRequest; import com.hnust.malldemo.model.dto.wallet.WalletChangeRequest; import com.hnust.malldemo.model.dto.wallet.WalletQueryRequest; import com.hnust.malldemo.model.dto.wallet.WithdrawalRequest; import com.hnust.malldemo.model.entity.Records; import com.hnust.malldemo.model.vo.RecordVO; import com.hnust.malldemo.model.vo.WalletVO; import com.hnust.malldemo.service.BankService; import com.hnust.malldemo.service.OrdersService; import com.hnust.malldemo.service.RecordsService; import com.hnust.malldemo.service.WalletService; import com.hnust.malldemo.utils.ResultUtils; import org.springframework.web.bind.annotation.*; import javax.annotation.Resource; import java.util.List; /** * @author 兰利军 */ @RestController @RequestMapping("/wallet") public class ConsumeController { @Resource private WalletService walletService; @Resource private RecordsService recordsService; @Resource private OrdersService ordersService; /** * 查询用户钱包余额 * @param walletQueryRequest * @return */ @PostMapping("/searchWalletBalance") public BaseResponse<WalletVO> searchUserBalance(@RequestBody WalletQueryRequest walletQueryRequest){ String userName = walletQueryRequest.getUserName(); String payPassword = walletQueryRequest.getPayPassword(); WalletVO walletVO = walletService.searchUserBalance(userName, payPassword); return walletVO != null ? ResultUtils.success(walletVO) : ResultUtils.error(ErrorCode.PARAMS_ERROR,"用户不存在"); } /** * 用户钱包消费和退款，type表示，0-消费，1-退款 * @param walletChangeRequest * @return */ @PostMapping("/consume") public BaseResponse<String> balanceChange(@RequestBody WalletChangeRequest walletChangeRequest){ // 用户名 String username = walletChangeRequest.getUsername(); // 类型，0-消费，1-退款 Integer type = walletChangeRequest.getType(); // 对应金额 Double money = walletChangeRequest.getMoney(); Boolean isSuccessful = walletService.balanceChange(username,type,money); return isSuccessful ? ResultUtils.success(null) : ResultUtils.error(ErrorCode.SYSTEM_ERROR,"钱包余额不足"); } /** * 查询用户钱包金额变动 * @param userName * @return */ @GetMapping("/searchRecords/{userName}") public BaseResponse<List<RecordVO>> searchRecords(@PathVariable String userName){ List<RecordVO> recordsList = recordsService.searchRecords(userName); return ResultUtils.success(recordsList); } /** * 订单记录 * @param ordersAddRequest * @return */ @PostMapping("/addOrders") public BaseResponse<Records> addOrder(@RequestBody OrdersAddRequest ordersAddRequest){ Boolean successful = ordersService.addOrder(ordersAddRequest); return successful ? ResultUtils.success(null) : ResultUtils.error(ErrorCode.OPERATION_ERROR,"操作失败，请稍后再试！"); } }