From 580d70b15ae47bc180a0b579af8c47c506eefac6 Mon Sep 17 00:00:00 2001
From: huliguo <2023611923@qq.com>
Date: 星期五, 11 七月 2025 20:13:38 +0800
Subject: [PATCH] 修改

---
 src/main/java/com/linghu/controller/KeywordController.java |   91 ++++++++++++++++++++++++++++++++++++++-------
 1 files changed, 76 insertions(+), 15 deletions(-)

diff --git a/src/main/java/com/linghu/controller/KeywordController.java b/src/main/java/com/linghu/controller/KeywordController.java
index cee397f..3e94579 100644
--- a/src/main/java/com/linghu/controller/KeywordController.java
+++ b/src/main/java/com/linghu/controller/KeywordController.java
@@ -1,8 +1,13 @@
 package com.linghu.controller;
 
 import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.ExcelWriter;
 import com.alibaba.excel.context.AnalysisContext;
 import com.alibaba.excel.event.AnalysisEventListener;
+import com.alibaba.excel.write.handler.SheetWriteHandler;
+import com.alibaba.excel.write.metadata.WriteSheet;
+import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
+import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.linghu.listener.KeywordExcelListener;
 import com.linghu.mapper.KeywordMapper;
@@ -13,24 +18,24 @@
 import com.linghu.model.dto.ExportGetResultByPlatformIdDTO;
 import com.linghu.model.dto.ExportGetResultDTO;
 import com.linghu.model.dto.ExportStaticsDTO;
-import com.linghu.model.entity.Keyword;
-import com.linghu.model.entity.Platform;
-import com.linghu.model.entity.Reference;
-import com.linghu.model.entity.Type;
-import com.linghu.model.excel.FeedExportExcel;
-import com.linghu.model.excel.PlatformExcel;
-import com.linghu.model.excel.ReferenceExcel;
+import com.linghu.model.entity.*;
+import com.linghu.model.excel.*;
 import com.linghu.model.vo.*;
-import com.linghu.model.excel.KeywordExcel;
 import com.linghu.model.excel.PlatformExcel;
 import com.linghu.model.vo.KeywordStaticsListVO;
 import com.linghu.model.vo.KeywordStaticsVO;
 import com.linghu.model.vo.PlatformProportionVO;
 import com.linghu.model.vo.ResultListVO;
 import com.linghu.service.KeywordService;
+import com.linghu.service.PlatformService;
 import com.linghu.service.ReferenceService;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
+import org.apache.poi.ss.usermodel.DataValidation;
+import org.apache.poi.ss.usermodel.DataValidationConstraint;
+import org.apache.poi.ss.usermodel.DataValidationHelper;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.util.CellRangeAddressList;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
@@ -68,6 +73,8 @@
     private ReferenceService referenceService;
     @Autowired
     private ReferenceMapper referenceMapper;
+    @Autowired
+    private PlatformService platformService;
 
     /**
      * 关键词统计 EChart图
@@ -190,13 +197,39 @@
                     1 , dto.getTypeId());
         }
 
-
+        //查询所有平台名称
+        List<String> typeNameList = result.stream()
+                .map(PlatformProportionVO::getType_name)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toList());
 
         // 3. 导出Excel
         ByteArrayOutputStream out = new ByteArrayOutputStream();
-        EasyExcel.write(out, PlatformProportionVO.class)
-                .sheet("引用数据")
-                .doWrite(result);
+        // 3. 使用自定义的SheetWriteHandler来添加数据验证
+        ExcelWriter excelWriter = EasyExcel.write(out, PlatformProportionVO.class)
+                .registerWriteHandler(new SheetWriteHandler() {
+                    @Override
+                    public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder,
+                                                 WriteSheetHolder writeSheetHolder) {
+                        Sheet sheet = writeSheetHolder.getSheet();
+
+                        // 添加数据验证(下拉框)
+                        DataValidationHelper helper = sheet.getDataValidationHelper();
+                        CellRangeAddressList rangeList = new CellRangeAddressList(
+                                1, 65535, 0, 0); // D列(第4列)
+
+                        DataValidationConstraint constraint = helper.createExplicitListConstraint(
+                                typeNameList.toArray(new String[0]));
+                        DataValidation validation = helper.createValidation(constraint, rangeList);
+                        sheet.addValidationData(validation);
+                    }
+                })
+                .build();
+
+
+        WriteSheet writeSheet = EasyExcel.writerSheet("平台分布占比").build();
+        excelWriter.write(result, writeSheet);
+        excelWriter.finish();
 
         // 4. 构建响应
         return ResponseEntity.ok()
@@ -250,11 +283,39 @@
             result = keywordMapper.getResultByPlatformId(dto.getKeywordId(), dto.getQuestionId(), 1,
                     dto.getPlatformId());
         }
+        //查询所有平台名称
+        List<String> platfromNames = result.stream()
+                .map(ResultListVO::getPlatform_name)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toList());
         // 3. 导出Excel
         ByteArrayOutputStream out = new ByteArrayOutputStream();
-        EasyExcel.write(out, ResultListVO.class)
-                .sheet("引用数据")
-                .doWrite(result);
+
+        // 3. 使用自定义的SheetWriteHandler来添加数据验证
+        ExcelWriter excelWriter = EasyExcel.write(out, ResultListVO.class)
+                .registerWriteHandler(new SheetWriteHandler() {
+                    @Override
+                    public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder,
+                                                 WriteSheetHolder writeSheetHolder) {
+                        Sheet sheet = writeSheetHolder.getSheet();
+
+                        // 添加数据验证(下拉框)
+                        DataValidationHelper helper = sheet.getDataValidationHelper();
+                        CellRangeAddressList rangeList = new CellRangeAddressList(
+                                1, 65535, 0, 0); // D列(第4列)
+
+                        DataValidationConstraint constraint = helper.createExplicitListConstraint(
+                                platfromNames.toArray(new String[0]));
+                        DataValidation validation = helper.createValidation(constraint, rangeList);
+                        sheet.addValidationData(validation);
+                    }
+                })
+                .build();
+
+
+        WriteSheet writeSheet = EasyExcel.writerSheet("平台分布占比").build();
+        excelWriter.write(result, writeSheet);
+        excelWriter.finish();
 
         // 4. 构建响应
         return ResponseEntity.ok()

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