在Next.js的_router.js_文件中添加一个_onPrefetch_钩子来手动触发查询，以避免不必要的重新获取数据。以下是示例代码：

// pages/_app.js

import { ApolloProvider } from '@apollo/client';
import { useApollo } from '../lib/apolloClient';

function MyApp({ Component, pageProps }) {
  const apolloClient = useApollo(pageProps.initialApolloState);
  return (
    
      
    
  );
}

export default MyApp;

// pages/index.js 

import { useQuery } from '@apollo/client';
import gql from 'graphql-tag';
import Link from 'next/link';
import { useState } from 'react';
import { useRouter } from 'next/router';

const QUERY = gql`
  query Posts($first: Int!, $skip: Int!) {
    allPosts(first: $first, skip: $skip) {
      id
      title
    }
  }
`;

const Index = () => {
  const [showing, setShowing] = useState(5);
  const { data, loading, error } = useQuery(QUERY, {
    variables: { first: showing, skip: 0 },
    notifyOnNetworkStatusChange: true,
  });
  const router = useRouter();
  const handleShowMore = () => {
    setShowing(showing + 5);
    router.push('/'); // <-- 需要手动触发查询 useEffect(() => { refetch() }, [])
  }
  if (error) return 
Error: {JSON.stringify(error)}
;
  if (loading) return 
Loading...
;
  return (
    

      {data.allPosts.map((post) => (
        

          {post.title}
        
      ))}
      更多
    
  );
};

export default Index;


// lib/apolloClient.js

import { useMemo } from 'react';
import {
  ApolloClient,
  HttpLink,
  InMemoryCache,
  NormalizedCacheObject
} from '@apollo/client';

let apolloClient;

function createApolloClient() {
  return new ApolloClient({
    ssrMode: typeof window === 'undefined',
    link: new HttpLink({
      uri: 'http://localhost:3000/graphql',
      credentials: 'same-origin',
    }),
    cache: new InMemoryCache(),
  });
}

export function initializeApollo(initialState = null) {
  const _apolloClient = apolloClient ?? createApolloClient();

  if (initial