zhangpengxiang
/
tba-slgc-new


			
				
					
						
						
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							package com.goldenwater.web.controller.efinder;

import com.goldenwater.slgc.entity.efinder.DocFile;
import com.goldenwater.slgc.service.efinder.IDocFileService;
import com.goldenwater.common.core.controller.BaseController;
import com.goldenwater.common.core.domain.AjaxResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import com.goldenwater.common.annotation.Log;
import com.goldenwater.common.enums.BusinessType;
import jakarta.servlet.http.HttpServletResponse;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

@Tag(name = "01.03 文件管理-文档编辑", description = "文档在线编辑相关接口")
@RestController
@RequestMapping("/efinder/pageoffice")
public class PageOfficeController extends BaseController {
    @Autowired
    private IDocFileService docFileService;

    /**
     * 获取文件信息（供前端打开编辑器）
     */
    @Operation(summary = "获取文件信息")
    @GetMapping("/open/{fileId}")
    public AjaxResult open(@Parameter(description = "文件ID") @PathVariable Long fileId) {
        DocFile file = docFileService.selectById(fileId);
        if (file == null) {
            return error("文件不存在");
        }
        Map<String, Object> result = new HashMap<>();
        result.put("id", file.getId());
        result.put("name", file.getName());
        result.put("path", file.getPath());
        result.put("type", file.getType());
        result.put("size", file.getSize());
        return success(result);
    }

    /**
     * 下载Word文档（供前端编辑前下载）
     */
    @Operation(summary = "下载Word文档")
    @GetMapping("/download/{fileId}")
    public void download(@Parameter(description = "文件ID") @PathVariable Long fileId, HttpServletResponse response) {
        docFileService.download(fileId, response);
    }

    /**
     * 保存编辑后的Word文档（上传覆盖原文件）
     */
    @Operation(summary = "保存编辑后的Word文档")
    @Log(title = "PageOffice文档保存", businessType = BusinessType.UPDATE)
    @PostMapping("/save/{fileId}")
    public AjaxResult save(@Parameter(description = "文件ID") @PathVariable Long fileId,
                           @Parameter(description = "上传的文件") @RequestParam("file") MultipartFile file) {
        try {
            DocFile docFile = docFileService.selectById(fileId);
            if (docFile == null) {
                return error("文件不存在");
            }
            String absPath = docFile.getPath();
            java.io.File dest = new java.io.File(absPath);
            if (dest.getParentFile() != null && !dest.getParentFile().exists()) {
                dest.getParentFile().mkdirs();
            }
            file.transferTo(dest);
            docFile.setSize(file.getSize());
            docFileService.update(docFile);
            return success("保存成功");
        } catch (IOException e) {
            return error("保存失败: " + e.getMessage());
        }
    }

    /**
     * 返回在线编辑器HTML页面（iframe嵌入方式）
     * 前端可通过 iframe 加载此页面实现文档预览
     */
    @Operation(summary = "返回在线编辑器HTML页面")
    @GetMapping("/editor/{fileId}")
    public void editor(@Parameter(description = "文件ID") @PathVariable Long fileId, HttpServletResponse response) {
        DocFile file = docFileService.selectById(fileId);
        if (file == null) {
            return;
        }
        try {
            response.setContentType("text/html;charset=UTF-8");
            StringBuilder html = new StringBuilder();
            html.append("<!DOCTYPE html><html><head><meta charset='UTF-8'>");
            html.append("<title>").append(file.getName()).append(" - 在线编辑</title>");
            html.append("<style>");
            html.append("body{margin:0;padding:0;display:flex;flex-direction:column;height:100vh;font-family:sans-serif;}");
            html.append(".toolbar{padding:8px 16px;background:#f5f5f5;border-bottom:1px solid #ddd;display:flex;gap:8px;align-items:center;}");
            html.append(".toolbar .title{font-size:14px;font-weight:600;flex:1;}");
            html.append(".toolbar button{padding:4px 12px;cursor:pointer;border:1px solid #ccc;background:#fff;border-radius:3px;}");
            html.append(".toolbar button:hover{background:#e8e8e8;}");
            html.append(".content{flex:1;display:flex;align-items:center;justify-content:center;background:#fafafa;}");
            html.append(".content iframe{width:100%;height:100%;border:none;}");
            html.append(".hint{color:#999;font-size:14px;text-align:center;padding:20px;}");
            html.append("</style>");
            html.append("</head><body>");
            html.append("<div class='toolbar'>");
            html.append("<span class='title'>").append(file.getName()).append("</span>");
            html.append("<button onclick=\"window.open('/slgc/efinder/pageoffice/download/").append(fileId).append("','_blank')\">下载文档</button>");
            html.append("</div>");
            html.append("<div class='content'>");
            html.append("<div class='hint'>");
            html.append("<p>文档预览不支持直接在线编辑</p>");
            html.append("<p>请点击上方「下载文档」按钮下载到本地编辑</p>");
            html.append("<p>编辑完成后可通过页面上传功能保存修改</p>");
            html.append("</div>");
            html.append("</div>");
            html.append("</body></html>");
            response.getWriter().write(html.toString());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}