代码INIT,修改基本框架

src/main/java/com/quinn/controller/AboutController.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.About;
+import com.quinn.pojo.Say;
+import com.quinn.service.AboutService;
+import com.quinn.utils.QuinnUtils;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+/**
+ * <p>
+ *  前端控制器
+ * </p>
+ *
+ * @author limqsh
+ * @since 2022-05-01
+ */
+@Controller
+public class AboutController {
+
+    @Resource
+    AboutService aboutService;
+
+
+    @GetMapping("/about")
+    public String userIndexBlog(Model model){
+        Page<About> pageParam = new Page<>(1, 50);
+        aboutService.page(pageParam,new QueryWrapper<About>().orderByDesc("gmt_create"));
+        // 结果
+        List<About> sayList = pageParam.getRecords();
+        model.addAttribute("aboutList",sayList);
+        model.addAttribute("pageParam",pageParam);
+
+        return "page/about";
+    }
+
+    @PostMapping("/about/{role}")
+    public String saveSay(@PathVariable("role") int role, About about){
+        // 防止请求提交
+        if (role!=1){
+            return "redirect:/about";
+        }
+        about.setId(QuinnUtils.getUuid());
+        about.setGmtCreate(QuinnUtils.getTime());
+        // 结果
+        aboutService.save(about);
+        return "redirect:/about";
+    }
+
+
+}
+

src/main/java/com/quinn/mapper/AboutMapper.java

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+package com.quinn.mapper;
+
+import com.quinn.pojo.About;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+
+/**
+ * <p>
+ *  Mapper 接口
+ * </p>
+ *
+ * @author limqsh
+ * @since 2022-05-01
+ */
+public interface AboutMapper extends BaseMapper<About> {
+
+}

src/main/java/com/quinn/mapper/xml/AboutMapper.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.quinn.mapper.AboutMapper">
+
+</mapper>

src/main/java/com/quinn/pojo/About.java

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+package com.quinn.pojo;
+
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.baomidou.mybatisplus.annotation.IdType;
+import java.util.Date;
+import com.baomidou.mybatisplus.annotation.TableId;
+import java.io.Serializable;
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.experimental.Accessors;
+
+/**
+ * <p>
+ * 
+ * </p>
+ *
+ * @author limqsh
+ * @since 2022-05-01
+ */
+@Data
+@EqualsAndHashCode(callSuper = false)
+@Accessors(chain = true)
+@TableName("qn_about")
+@ApiModel(value="About对象", description="")
+public class About implements Serializable {
+
+    private static final long serialVersionUID = 1L;
+
+    @ApiModelProperty(value = "唯一id")
+    @TableId(value = "id", type = IdType.ID_WORKER_STR)
+    private String id;
+
+    @ApiModelProperty(value = "标题")
+    private String title;
+
+    @ApiModelProperty(value = "内容")
+    private String content;
+
+    @ApiModelProperty(value = "时间")
+    private Date gmtCreate;
+
+
+}

src/main/java/com/quinn/service/AboutService.java

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+package com.quinn.service;
+
+import com.quinn.pojo.About;
+import com.baomidou.mybatisplus.extension.service.IService;
+
+/**
+ * <p>
+ *  服务类
+ * </p>
+ *
+ * @author limqsh
+ * @since 2022-05-01
+ */
+public interface AboutService extends IService<About> {
+
+}

src/main/java/com/quinn/service/impl/AboutServiceImpl.java

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+package com.quinn.service.impl;
+
+import com.quinn.pojo.About;
+import com.quinn.mapper.AboutMapper;
+import com.quinn.service.AboutService;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.stereotype.Service;
+
+/**
+ * <p>
+ *  服务实现类
+ * </p>
+ *
+ * @author limqsh
+ * @since 2022-05-01
+ */
+@Service
+public class AboutServiceImpl extends ServiceImpl<AboutMapper, About> implements AboutService {
+
+}