验证出现错误时，重定向回Laravel中的特定选项卡

public function validateForm(Request $request)
{
    $validatedData = $request->validate([
        'field1' => 'required',
        'field2' => 'required',
    ]);

    // 如果验证失败，将错误信息存储到会话中
    if ($validator->fails()) {
        return redirect()->back()->withErrors($validator)->withInput();
    }

    // 验证通过，执行其他操作
    // ...
}

<ul class="nav nav-tabs">
    <li class="{{ $errors->has('field1') ? 'active' : '' }}"><a href="#field1" data-toggle="tab">Field 1</a></li>
    <li class="{{ $errors->has('field2') ? 'active' : '' }}"><a href="#field2" data-toggle="tab">Field 2</a></li>
</ul>

<div class="tab-content">
    <div class="tab-pane {{ $errors->has('field1') ? 'active' : '' }}" id="field1">
        <div class="form-group">
            <label for="field1">Field 1:</label>
            <input type="text" name="field1" class="form-control" value="{{ old('field1') }}">
            @if ($errors->has('field1'))
                <span class="help-block">{{ $errors->first('field1') }}</span>
            @endif
        </div>
    </div>

    <div class="tab-pane {{ $errors->has('field2') ? 'active' : '' }}" id="field2">
        <div class="form-group">
            <label for="field2">Field 2:</label>
            <input type="text" name="field2" class="form-control" value="{{ old('field2') }}">
            @if ($errors->has('field2'))
                <span class="help-block">{{ $errors->first('field2') }}</span>
            @endif
        </div>
    </div>
</div>

Route::post('/form', 'FormController@validateForm')->name('form.validate');