ADD file via upload

NoticeController.java

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+package com.example.meal_ordering_system.controller;
+
+import com.example.meal_ordering_system.entity.Notice;
+import com.example.meal_ordering_system.service.NoticeService;
+import org.apache.ibatis.annotations.Param;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * (Notice)表控制层
+ *
+ * @author makejava
+ * @since 2021-02-04 12:51:20
+ */
+@Controller
+@RequestMapping("notice")
+public class NoticeController {
+    /**
+     * 服务对象
+     */
+    @Autowired
+    @Qualifier("noticeService")
+    private NoticeService noticeService;
+
+    /**
+     * 查询所有元素
+     * @param model
+     * @return
+     */
+    @RequestMapping("queryAll")
+    public String queryAll(Model model){
+        List<Notice> notices=noticeService.queryAll();
+        model.addAttribute("notices",notices);
+        return "admin/notice";
+    }
+
+    /**
+     * 查询所有公共并传送到前台
+     * @param model
+     * @return
+     */
+    @RequestMapping("queryAlltoQiantai")
+    public String queryAlltoQiantai(Model model){
+        List<Notice> notices=noticeService.queryAll();
+        model.addAttribute("notices",notices);
+        return "qiantai/index";
+    }
+
+
+    /**
+     * 根据id删除元素
+     * @param model
+     * @param id
+     * @return
+     */
+    @RequestMapping("delete")
+    public String delete(Model model, @Param("id") Integer id){
+        this.noticeService.delete(id);
+        return queryAll(model);
+    }
+
+    /**
+     * 根据id查询元素
+     * @param model
+     * @param id
+     * @return
+     */
+    @RequestMapping("queryById")
+    public String queryById(Model model,@Param("id") Integer id){
+        Notice notice=noticeService.queryById(id);
+        model.addAttribute("notice",notice);
+        return "admin/notice_update";
+    }
+
+    /**
+     * 根据id查询元素并传输到前台页面
+     * @param model
+     * @param id
+     * @return
+     */
+    @RequestMapping("queryByIdtoQiantai")
+    public String queryByIdtoQiantai(Model model,@Param("id") Integer id){
+        Notice notice=noticeService.queryById(id);
+        model.addAttribute("notice",notice);
+        return "qiantai/notice";
+    }
+
+    /**
+     * 修改元素
+     * @param model
+     * @param id
+     * @param name
+     * @param content
+     * @param times
+     * @return
+     */
+    @RequestMapping("update")
+    public String update(Model model,@Param("id") Integer id,@Param("name") String name,@Param("content") String content,@Param("times") String times){
+        noticeService.update(new Notice(id,name,content,times));
+        return queryAll(model);
+    }
+
+    /**
+     * 新增元素
+     * @param model
+     * @param name
+     * @param content
+     * @return
+     */
+    @RequestMapping("insert")
+    public String insert(Model model,@Param("name") String name,@Param("content") String content){
+        Integer id=(int)(System.currentTimeMillis()%100);
+        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        String times=sdf.format(new Date());
+        noticeService.insert(new Notice(id,name,content,times));
+        return queryAll(model);
+    }
+}