创建仓库

src/main/java/vvpkassistant/SystemMessage/SystemMessage.java

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+package vvpkassistant.SystemMessage;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import lombok.Data;
+
+@Data
+public class SystemMessage {
+    @TableId(type = IdType.AUTO)
+    private Integer id;                     // 主键
+    private String content;                 // 内容
+    private String title;                   // 标题
+    private String time;                    // 创建时间
+}

src/main/java/vvpkassistant/SystemMessage/SystemMessageController.java

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+package vvpkassistant.SystemMessage;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import vvpkassistant.Data.ResponseData;
+import vvpkassistant.Tools.VVTools;
+
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("systemMessage")
+public class SystemMessageController {
+
+    @Autowired
+    private SystemMessageDao messageDao;
+
+    //  获取列表
+    @PostMapping("list")
+    public ResponseData<Object> messageList(@RequestBody Map<String,Integer> map) {
+        Integer page = map.get("page");
+        Integer size = map.get("size");
+        List<SystemMessage> systemMessages = messageDao.messageList(page * size, size);
+        return ResponseData.success(systemMessages);
+    }
+
+    // 增加
+    @PostMapping("add")
+    public ResponseData<Object> createNewMessage(@RequestBody SystemMessage message) {
+        message.setTime(VVTools.getCurrentTime("yyyy-MM-dd HH:mm"));
+        return ResponseData.success(messageDao.insert(message));
+    }
+
+    // 修改
+    @PostMapping("update")
+    public ResponseData<Object> updateMessage(@RequestBody SystemMessage message) {
+        return ResponseData.success(messageDao.updateById(message));
+    }
+
+    // 删除
+    @PostMapping("delete")
+    public ResponseData<Object> delete(@RequestBody SystemMessage message) {
+        return ResponseData.success(messageDao.deleteById(message));
+    }
+
+}

src/main/java/vvpkassistant/SystemMessage/SystemMessageDao.java

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+package vvpkassistant.SystemMessage;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+@Mapper
+public interface SystemMessageDao extends BaseMapper<SystemMessage> {
+
+    // 查询消息列表
+    @Select("select * from system_message order by id desc limit #{page} , #{size}")
+    List<SystemMessage> messageList(@Param("page")Integer page, @Param("size") Integer size);
+
+
+}