根据键过滤Json数据，并将值赋给react中的state

import React, { Component } from 'react';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      filteredData: null
    };
  }

  render() {
    // ...
  }
}

export default MyComponent;

import React, { Component } from 'react';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      filteredData: null
    };
  }

  componentDidMount() {
    // 获取Json数据
    fetch('https://example.com/data.json')
      .then(response => response.json())
      .then(data => {
        // 过滤数据并更新state
        const filteredData = data.filter(item => item.key === 'your_key');
        this.setState({ filteredData });
      })
      .catch(error => console.log(error));
  }

  render() {
    // ...
  }
}

export default MyComponent;

import React, { Component } from 'react';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      filteredData: null
    };
  }

  componentDidMount() {
    // 获取Json数据
    fetch('https://example.com/data.json')
      .then(response => response.json())
      .then(data => {
        // 过滤数据并更新state
        const filteredData = data.filter(item => item.key === 'your_key');
        this.setState({ filteredData });
      })
      .catch(error => console.log(error));
  }

  render() {
    const { filteredData } = this.state;

    return (
      <div>
        {filteredData && filteredData.map(item => (
          <div key={item.id}>
            {/* 展示或处理过滤后的数据 */}
            <p>{item.value}</p>
          </div>
        ))}
      </div>
    );
  }
}

export default MyComponent;