像这样给你的输入参考

<input type="text" name="email" placeholder="Email" ref="email" />
<input type="password" name="password" placeholder="Password" ref="password" />

然后你可以像soo一样在你的handleLogin中访问它

handleLogin: function(e) {
   e.preventDefault();
    console.log(this.refs.email.value)
    console.log(this.refs.password.value)
}

<form onSubmit={handleLogin}>
      <input type="text" name="email" placeholder="Email" />
      <input type="text" name="password" placeholder="Password" />
      <button type="submit">Login</button>
</form>

const handleLogin = (event) => {
    event.preventDefault(); 
    console.log(event.target[0].value)
    console.log(event.target[1].value)         
  }

迈克尔·肖克的回答是:

class MyForm extends React.Component {
  constructor() {
    super();
    this.handleSubmit = this.handleSubmit.bind(this);
  }

  handleSubmit(event) {
    event.preventDefault();
    const data = new FormData(event.target);

    console.log(data.get('email')); // reference by form input's `name` tag

    fetch('/api/form-submit-url', {
      method: 'POST',
      body: data,
    });
  }

  render() {
    return (
      <form onSubmit={this.handleSubmit}>
        <label htmlFor="username">Enter username</label>
        <input id="username" name="username" type="text" />

        <label htmlFor="email">Enter your email</label>
        <input id="email" name="email" type="email" />

        <label htmlFor="birthdate">Enter your birth date</label>
        <input id="birthdate" name="birthdate" type="text" />

        <button>Send data!</button>
      </form>
    );
  }
}

参见这篇Medium文章:如何用Just React处理表单

此方法仅在按下提交按钮时获取表单数据。我觉得干净多了!

同样，这个也可以用。

handleChange: function(state,e) {
  this.setState({[state]: e.target.value});
},
render : function() {
  return (
    <form>
      <input type="text" name="email" placeholder="Email" value={this.state.email} onChange={this.handleChange.bind(this, 'email')} />
      <input type="password" name="password" placeholder="Password" value={this.state.password} onChange={this.handleChange.bind(this, 'password')}/>
      <button type="button" onClick={this.handleLogin}>Login</button>
    </form>
  );
},
handleLogin: function() {
  console.log("EMail: ", this.state.email);
  console.log("Password: ", this.state.password);
}

es6析构的更清晰的例子

class Form extends Component {
    constructor(props) {
        super(props);
        this.state = {
            login: null,
            password: null,
            email: null
        }
    }

    onChange(e) {
        this.setState({
            [e.target.name]: e.target.value
        })
    }

    onSubmit(e) {
        e.preventDefault();
        let login = this.state.login;
        let password = this.state.password;
        // etc
    }

    render() {
        return (
            <form onSubmit={this.onSubmit.bind(this)}>
                <input type="text" name="login" onChange={this.onChange.bind(this)} />
                <input type="password" name="password" onChange={this.onChange.bind(this)} />
                <input type="email" name="email" onChange={this.onChange.bind(this)} />
                <button type="submit">Sign Up</button>
            </form>
        );
    }
}

对付裁判的一个简单方法:

class UserInfo extends React.Component { constructor(props) { super(props); this.handleSubmit = this.handleSubmit.bind(this); } handleSubmit(e) { e.preventDefault(); const formData = {}; for (const field in this.refs) { formData[field] = this.refs[field].value; } console.log('-->', formData); } render() { return ( <div> <form onSubmit={this.handleSubmit}> <input ref="phone" className="phone" type='tel' name="phone"/> <input ref="email" className="email" type='tel' name="email"/> <input type="submit" value="Submit"/> </form> </div> ); } } export default UserInfo;