ADD file via upload

src/main/java/com/service/MessageInfoService.java

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+package com.example.service;
+
+import cn.hutool.json.JSONUtil;
+import com.example.dao.MessageInfoDao;
+import org.springframework.stereotype.Service;
+import com.example.entity.MessageInfo;
+import com.example.entity.AuthorityInfo;
+import com.example.entity.Account;
+import com.example.vo.MessageInfoVo;
+
+import com.github.pagehelper.PageHelper;
+import com.github.pagehelper.PageInfo;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletRequest;
+import java.util.Date;
+import java.util.List;
+
+@Service
+public class MessageInfoService {
+
+    @Resource
+    private MessageInfoDao messageInfoDao;
+
+    public MessageInfo add(MessageInfo messageInfo) {
+        messageInfoDao.insertSelective(messageInfo);
+        return messageInfo;
+    }
+
+    public void delete(Long id) {
+        messageInfoDao.deleteByPrimaryKey(id);
+    }
+
+    public void update(MessageInfo messageInfo) {
+        messageInfoDao.updateByPrimaryKeySelective(messageInfo);
+    }
+
+    public MessageInfo findById(Long id) {
+        return messageInfoDao.selectByPrimaryKey(id);
+    }
+
+    public List<MessageInfoVo> findAll() {
+        return messageInfoDao.findByName("all");
+    }
+
+    public PageInfo<MessageInfoVo> findPage(String name, Integer pageNum, Integer pageSize, HttpServletRequest request) {
+        PageHelper.startPage(pageNum, pageSize);
+        List<MessageInfoVo> all = findAllPage(request, name);
+        return PageInfo.of(all);
+    }
+
+    public List<MessageInfoVo> findAllPage(HttpServletRequest request, String name) {
+		return messageInfoDao.findByName(name);
+    }
+
+}