资源下载链路打通

src/main/java/com/quinn/controller/SourceController.java

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+package com.quinn.controller;
+
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.quinn.pojo.*;
+import com.quinn.service.SourceCategoryService;
+import com.quinn.service.SourceCommentService;
+import com.quinn.service.SourceService;
+import com.quinn.utils.UUIDGenerator;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author limqsh
+ * @since 2022-05-03
+ */
+@Controller
+public class SourceController {
+
+    @Resource
+    SourceService sourceService;
+
+    @Resource
+    SourceCategoryService sourceCategoryService;
+
+    @Resource
+    SourceCommentService sourceCommentService;
+
+    // 列表展示
+    @GetMapping("/source")
+    public String blogList(@RequestParam String name,@RequestParam int category,Model model){
+        System.out.println(name + category);
+        Page<Source> pageParam = new Page<>(1, 10);
+        QueryWrapper<Source> sourceQuery = new QueryWrapper<>();
+        sourceQuery.orderByDesc("gmt_create");
+        sourceService.page(pageParam,sourceQuery);
+        // 结果
+        List<Source> sourceList = pageParam.getRecords();
+        model.addAttribute("sourceList",sourceList);
+        model.addAttribute("pageParam",pageParam);
+
+        // 分类信息
+        List<SourceCategory> categoryList = sourceCategoryService.list(null);
+        model.addAttribute("categoryList",categoryList);
+
+        return "source/list";
+    }
+
+    // 查看文件详情
+    @GetMapping("/source/view/{sid}")
+    public String read(@PathVariable("sid") String sid, Model model){
+        Source source = sourceService.getOne(new QueryWrapper<Source>().eq("id", sid));
+        source.setSourceLink("no network link");
+        model.addAttribute("source",source);
+        List<SourceComment> commentList = sourceCommentService.list(new QueryWrapper<SourceComment>().eq("topic_id", sid).orderByDesc("gmt_create"));
+        model.addAttribute("commentList",commentList);
+        return "source/view";
+    }
+
+    // 下载文件
+    @GetMapping("/source/download/{sid}")
+    public void read(HttpServletResponse response, @PathVariable("sid") String sid) throws IOException {
+        //通知浏览器以附件形式下载
+        response.setHeader("Content-Disposition",
+                "attachment;filename=" + UUIDGenerator.randomUUID());
+        this.sourceService.downloadSource(response.getOutputStream(),sid);
+    }
+
+}
+