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2025-03-20 40fd87c3e98f2a5054ef480fed31dbae7376bf49 
 ruoyi-admin/src/main/java/com/ruoyi/web/controller/api/ScreenController.java


@@ -1,10 +1,25 @@


package com.ruoyi.web.controller.api;




import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;


import com.ruoyi.common.core.domain.R;


import com.ruoyi.system.model.TContract;


import com.ruoyi.system.service.TContractService;


import com.ruoyi.system.service.impl.ScreenService;


import com.ruoyi.system.vo.TenantCountTrendVO;


import io.swagger.annotations.Api;


import io.swagger.annotations.ApiModelProperty;


import lombok.RequiredArgsConstructor;


import org.springframework.web.bind.annotation.GetMapping;


import org.springframework.web.bind.annotation.RequestMapping;


import org.springframework.web.bind.annotation.RestController;




import java.text.DateFormat;


import java.time.LocalDateTime;


import java.time.format.DateTimeFormatter;


import java.time.format.DateTimeFormatterBuilder;


import java.util.List;


import java.util.Map;


import java.util.stream.Collectors;




/**


 * @author mitao


@@ -16,4 +31,32 @@


@RequiredArgsConstructor


public class ScreenController {


    private final ScreenService screenService;


    private final TContractService contractService;






    @GetMapping("/getTenantCountTrend")


    @ApiModelProperty(value = "租户数量趋势统计")


    public R<?> getTenantCountTrend() {


        // 获取所有签约时间不为空的合同


        List<TContract> contracts = contractService.list(new LambdaQueryWrapper<TContract>()


                .isNotNull(TContract::getSignTime));




        // 使用年-月格式化日期，并按此分组计算每个时间段的合同数量


        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yy-M");




        List<TenantCountTrendVO> trendData = contracts.stream()


                .collect(Collectors.groupingBy(contract -> contract.getSignTime().toLocalDate()


                        .withDayOfMonth(1) // 将日期调整为该月的第一天，以便正确分组


                        .atStartOfDay()))


                .entrySet().stream()


                .map(entry -> {


                    String period = entry.getKey().format(formatter);


                    long count = entry.getValue().size();


                    return new TenantCountTrendVO(period, count);


                })


                .collect(Collectors.toList());




        return R.ok(trendData);


    }




}