【问题标题】:How to send params using react-router-dom without a <Link> tag如何使用没有 <Link> 标签的 react-router-dom 发送参数
【发布时间】:2021-10-24 03:30:12
【问题描述】:

我正在使用 react-router-dom v^6.0.0-beta.1 和 React v^17.0.1,我通过点击卡片列表中的卡片从一页导航到另一页:

PlayersPage.tsx

/** @jsxImportSource @emotion/react */
import React, { useState, useEffect } from 'react';
import { Page } from './Page';
import { PageTitle } from './PageTitle';
import { Button, Card } from 'react-bootstrap';
import { css } from '@emotion/react';
import pic from '../assets/samurai.png';
import { useNavigate } from 'react-router';
import { Link } from 'react-router-dom';

function PlayersPage() {
  interface PlayersDataType {
    id: number;
    handle: string;
    role: string;
    avatar: string;
    specialAbilities: {
      playerId: number;
      authority: number;
      charismaticLeadership: number;
      combatSense: number;
      credibility: number;
      family: number;
      interface: number;
      juryRig: number;
      medicalTech: number;
      resources: number;
      streedeal: number;
    };
    stats: {
      playerId: number;
      int: number;
      ref: number;
      tech: number;
      cool: number;
      attr: number;
      luck: number;
      ma: number;
      body: number;
      emp: number;
      run: number;
      leap: number;
      lift: number;
    };
  }

  //const [isLoading, setIsLoading] = useState<boolean>(false);
  const [playersData, setPlayersData] = useState<Array<PlayersDataType>>([]);
  const navigate = useNavigate();

  const createNew = () => {
    navigate('../Create');
  };

  const handleSelect = () => {
    navigate('../Player');
  };

  //Fetch all players from database
  useEffect(() => {
    //setIsLoading(true);
    fetch('https://localhost:44326/api/Players/all')
      .then((response) => {
        if (response.ok) {
          return response.json();
        }
      })
      .then((data) => setPlayersData(data));
    //.then(setIsLoading(false));
  }, []);

  return (
    <Page>
      <div>
        <PageTitle>Toons</PageTitle>
        <div
          css={css`
            justify-content: center;
            margin-left: 255px;
            margin-bottom: 10px;
          `}
        >
          <button onClick={createNew}>Create New</button>
        </div>
      </div>

      <div //Every card is listed in 1 column
        css={css`
          flex-direction: column;
          margin-left: 40px;
        `}
      >
        {playersData.map((data) => (
          <div key={data.id}>
            <Card
              css={css`
                display: flex;
                width: 500px;
                height: 200px;
                flex-direction: column;
                //border: 2px solid black;
                box-shadow: 0 3px 7px 0 rgba(30, 38, 46, 0.21);
                cursor: pointer;
                :hover {
                  transform: scale(
                    1.2
                  ); /* (150% zoom - Note: if the zoom is too large, it will go outside of the viewport) */
                }
              `}
              onClick={handleSelect}
            >
              <div
                css={css`
                  display: flex;
                  flex-direction: row;
                  //border: 2px solid orange;
                `}
              >
                <Card.Img
                  src={pic}
                  alt="No photo found."
                  css={css`
                    margin: 5px 10px 10px 10px;
                    width: 150px;
                    height: 150px;
                    border-radius: 50%;
                    box-shadow: 0 3px 7px 0 rgba(30, 38, 46, 0.21);
                    //border: 2px solid black;
                  `}
                />
                <Card.Body
                  css={css`
                    flex: 1;
                    flex-direction: row;
                    //border: 2px solid purple;
                  `}
                >
                  <div
                    css={css`
                      display: flex;
                      flex-direction: row;
                      //justify-content: space-between;
                      flex-wrap: wrap;
                    `}
                  >
                    <Card.Text>Int:</Card.Text>
                    <Card.Text>{data.stats.int}</Card.Text>
                    <Card.Text>Ref:</Card.Text>
                    <Card.Text>{data.stats.ref}</Card.Text>
                    <Card.Text>Tech:</Card.Text>
                    <Card.Text>{data.stats.tech}</Card.Text>
                    <Card.Text>Cool:</Card.Text>
                    <Card.Text>{data.stats.cool}</Card.Text>
                    <Card.Text>Attr:</Card.Text>
                    <Card.Text>{data.stats.attr}</Card.Text>
                    <Card.Text>Luck:</Card.Text>
                    <Card.Text>{data.stats.luck}</Card.Text>
                    <Card.Text>Ma:</Card.Text>
                    <Card.Text>{data.stats.ma}</Card.Text>
                    <Card.Text>Body:</Card.Text>
                    <Card.Text>{data.stats.body}</Card.Text>
                    <Card.Text>Emp:</Card.Text>
                    <Card.Text>{data.stats.emp}</Card.Text>
                    <Card.Text>Run:</Card.Text>
                    <Card.Text>{data.stats.run}</Card.Text>
                    <Card.Text>Leap:</Card.Text>
                    <Card.Text>{data.stats.leap}</Card.Text>
                    <Card.Text>Lift:</Card.Text>
                    <Card.Text>{data.stats.lift}</Card.Text>
                  </div>
                </Card.Body>
              </div>
              <Card.Title
                css={css`
                  display: flex;
                  width: 150px;
                  flex-direction: row;
                  justify-content: center;
                  font-weight: bold;
                  margin-bottom: 10px;
                `}
              >
                {data.handle}, {data.role}
              </Card.Title>
            </Card>
            <br></br>
          </div>
        ))}
      </div>
    </Page>
  );
}

export default PlayersPage;

我想发送用户点击的任何卡片的data.id

有什么方法可以使用 onClick 函数在此处发送 data.id 作为参数:

  <div key={data.id}>
            <Card
              css={css`
                display: flex;
                width: 500px;
                height: 200px;
                flex-direction: column;
                //border: 2px solid black;
                box-shadow: 0 3px 7px 0 rgba(30, 38, 46, 0.21);
                cursor: pointer;
                :hover {
                  transform: scale(
                    1.2
                  ); /* (150% zoom - Note: if the zoom is too large, it will go outside of the viewport) */
                }
              `}
              onClick={handleSelect}
            >

并以某种方式将其发送到这里:

 const handleSelect = () => {
    navigate('../Player');
  };

然后在另一个页面上使用该 id?

编辑:

这就是我现在正在尝试的:

onClick={() => handleSelect(data.id)}

我认为这是正确的。然后在handleSelect函数中:

 const handleSelect = (id: number) => {
    history.push(pathname: '/Player',
      state: {  
        id: id, 
      },)
  }

但是我在这方面遇到 3 个错误:Property 'push' does not exist on type 'History'.ts(2339)Cannot find name 'pathname'.ts(2304) 以及 state 的相同错误。

编辑 2:

我添加了 const history = useHistory();,并更新了handleSelect函数如下:

 const handleSelect = (id: number) => {
    history.push({
      pathname: '/Player',
      state: {
        id: id,
      },
    });
  };

除了打字稿错误Module '"react-router-dom"' has no exported member 'useHistory'.ts(2305)之外,一切似乎都很好。

【问题讨论】:

标签: javascript reactjs react-navigation react-router-dom react-bootstrap


【解决方案1】:

使用这个:

onClick={()=>handleSelect(data.id)}

并修改您的handleSelect 如下:

const handleSelect = (id) => {
    this.props.router.push({
      pathname: '/pathname',
      state: {
        id: id
      }
    })
  };

或使用useHistory:

const handleSelect = (id) => {
    history.push(pathname: '/YOUR PATH',
      state: {  
        id: id, 
      },)
  }


对于您的编辑部分:

  1. 导入 useHistory 并使用它:
import { useHistory } from "react-router-dom";

// in your component define a history variable
const history = useHistory();

// then use it whenever you want:
history.push({
  pathname: '/your path', //change the value to whatever you want
  state: {  
    id: id, // you can add other variables as well
  },
}); 
  1. 现在您可以在目标组件中访问此变量: 在类组件中:
this.props.location

在功能组件中:

import { useLocation } from 'react-router-dom';

const location = useLocation();
let id  = location.state.id;

【讨论】:

  • 在第一种方法中,我在 id:Parameter 'id' implicitly has an 'any' type.ts(7006) 上得到一个错误:'this' implicitly has type 'any' because it does not have a type annotation.ts(2683) PlayersPage.tsx(11, 10): An outer value of 'this' is shadowed by this container.
  • 第一种方法是类组件!如果你使用功能组件,你应该使用useHistory,你定义了useHistory吗?您应该按如下方式使用它:const history = useHistory();
  • 用历史记录方法好了,我得到了这些错误:Property 'push' does not exist on type 'History'.ts(2339)Cannot find name 'pathname'.ts(2304),和Cannot find name 'state'.ts(2304)
  • 我编辑了我的问题以显示我在哪里。
  • 我收到错误:Module '"react-router-dom"' has no exported member 'useHistory'.ts(2305) 我已经运行了 yarn install 和 yarn add @types/react-router-dom 但问题仍然存在
【解决方案2】:

在您的handleSelect 方法中,您需要传递data.id 参数。

onClick={handleSelect(data.id)}

并在您的处理程序中处理它。但是你必须像这样包装函数。

const handleSelect = (clickEvent) => (dataId) {
    //dataId will be available to use here
    navigate('../Player/');
};

然后我会看看 useHistory 钩子,因为历史道具被认为是遗留的。

import React from 'react';
import { useHistory } from 'react-router-dom';

const Hello = () => {
  const history = useHistory();
  const handleClick = () => history.push('/goodbye');

  return (
    <button type="button" onClick={handleClick}>
      Goodbye
    </button>
  );
};

export default Hello;

因此,当您推送到历史 URL 时,您可以创建使用该参数的路由。像这样的:

history.push('/yourURL/:dataId');

然后在该页面上,您可以拉下该参数,您的应用可以使用它。

【讨论】:

  • 使用onClick={handleSelect(data.id)}不正确,应改为onClick={()=&gt;handleSelect(data.id)}
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