修改：

1.添加大哥信息查询筛选接口

src/main/java/com/yupi/springbootinit/service/impl/ServerBigBrotherServiceImpl.java

@@ -0,0 +1,38 @@
+package com.yupi.springbootinit.service.impl;
+
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.yupi.springbootinit.model.dto.host.HostInfoDTO;
+import com.yupi.springbootinit.model.dto.host.ServerBigBrotherDTO;
+import com.yupi.springbootinit.model.vo.bigbrother.ServerBigBrotherVO;
+import com.yupi.springbootinit.model.vo.hosts.NewHostsVO;
+import org.springframework.stereotype.Service;
+import org.springframework.beans.factory.annotation.Autowired;
+import java.util.List;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.yupi.springbootinit.mapper.ServerBigBrotherMapper;
+import com.yupi.springbootinit.model.entity.ServerBigBrother;
+import com.yupi.springbootinit.service.ServerBigBrotherService;
+import org.springframework.web.bind.annotation.RequestBody;
+
+import javax.annotation.Resource;
+/*
+* @author: ziin
+* @date: 2025/6/25 19:21
+*/
+    
+@Service
+public class ServerBigBrotherServiceImpl extends ServiceImpl<ServerBigBrotherMapper, ServerBigBrother> implements ServerBigBrotherService{
+
+    @Resource
+    private  ServerBigBrotherMapper serverBigBrotherMapper;
+
+    @Override
+    public Page<ServerBigBrotherVO> getConditionHosts(ServerBigBrotherDTO serverBigBrotherDTO) {
+
+        Page<ServerBigBrotherVO> page = new Page<>(serverBigBrotherDTO.getCurrent(),serverBigBrotherDTO.getPageSize());
+        return serverBigBrotherMapper.selectPageByCondition(page, serverBigBrotherDTO);
+
+    }
+
+
+}