testAjax函数 里面 PostsController类：
public function testAjax(Request $request)
{
$name = $request->input('name');
$validator = Validator::make($request->all(), ['name' => 'required']);
if ($validator->fails()){
$errors = $validator->errors();
echo $errors;
}
else{
echo "welcome ". $name;
}
}
里面的web.php文件：
Route::get('/home' , function(){
return view('ajaxForm');
});
Route::post('/verifydata', 'PostsController@testAjax');
ajaxForm.blade.php：
<script src="{{ asset('public/js/jquery.js') }}"></script>
<input type="hidden" id="token" value="{{ csrf_token() }}">
Name<input type="text" name="name" id="name">
<input type="button" id="submit" class="btn btn-info" value="Submit" />
<script>
$(document).ready(function(){
$("#submit").click(function(){
var name = $("#name").val();
var token = $("#token").val();
/**Ajax code**/
$.ajax({ … public function addNewPost(Request $request)/****ADD new POST****/
{
$this->validate($request,['post_title'=>'required|min:4|max:100',
'post_description'=>'required|min:20|max:500'
]);
$user_name = Session::get('name');
$post_title = $request->input('post_title');
$post_description = $request->input('post_description');
$addPost = new AddNewPost(['user_name'=> $user_name, 'post_title'=> $post_title, 'post_description'=> $post_description]);
$addPost->save();
$addPost->post_id;
//$addPost = DB::table('userposts')->where(['user_name'=>$user_name ])->orderBy('post_id', 'desc')->get();
print_r($addAdmin->post_id); //This is printing nothing, i.e. blank.
}
userposts表中的post_id列是自动递增的。我正在尝试通过user_name获取用户的最后一个帖子 ID 。我看过一些教程，也通过互联网检查了一些问题，但无法做我想要的。任何人都可以知道如何做到这一点。谢谢你。
这是我的代码：
List<String[]> salaries = getSalariesByMonth();
//I am using the old way to print the data
for (String[] obj : rates) {
System.out.println("User name: "obj[0]+"--"+"Salary: "+obj[1]); //obj[0] is NAME, obj[1] is SALARY
}
//I am trying to use this way to print the data but unable to do so.
salaries.forEach(s-> System.out.println("print NAME and SALARY"));
如何使用 Lambda 打印包含字符串数组的列表。先感谢您。