为什么在使用create-react-app时表单未提交？ [英] why is form not submitting when using create-react-app?

问题描述

在我迁移到使用create-react-app之前，我的google auth按钮工作正常。当我切换到CRA时，该表单未提交到服务器，相反，该应用似乎将 action 属性中的新路径推送到了历史记录。 CRA是否会自动以某种方式禁用表单提交？周围有工作吗？谢谢！

My google auth button was working fine before I migrated to using create-react-app. when I switch to CRA, the form is not being submitted to the server and instead it seems like the app is pushing the new path in the action attribute to the history. Does CRA automatically disables form submission somehow? is there a work around? Thanks!

这是表格：

<form method="get" action="/aoth/google" className="google-form">
      <input type="submit" className="google-login" value="Google+" />
</form>

推荐答案

下面是一个简单的代码段，显示了如何处理表单提交。希望有帮助。

Here's a simple snippet showing how to handle form submission. Hope that helps.

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

  handleSubmit(event) {
    event.preventDefault();
    const form = event.target;
    const data = new FormData(form);
    for (let name of data.keys()) {
      const input = form.elements[name];
      console.log(input);
      console.log(input.value);
    }
    
    fetch('/aoth/google', {
      method: 'GET',
      body: data,
    });
  }

    render() {
      return (
        <form onSubmit={this.handleSubmit} className="google-form">
              <input id="username" name="username" type="text" />
              <input type="submit" className="google-login" value="Google+" />
        </form>
      );
   }
}

ReactDOM.render( < App / > ,
  document.getElementById('root')
)

<script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script>

<div id="root" />

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