Question

我正在开展一个学校项目，我必须将SQL查询作为输入并将其发送到节点js代码来处理查询。但我不能这样做。我提交查询时收到错误。控制台说：

 temp = head1;
 while(temp->next != NULL)
   temp = temp->next;
//now while loop will break once temp point at the last node i.e. b2 in your case
  //Now if you want to move all the element of the first list just do like below

 temp->next = head;

 //if you want to move only the first element a1 you can do it like below
 temp->next = head;
 // now you have to move the head node like below in the first list
 head = head->next;

Server started listening...
url.js:143
throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'url', 'string', url);
^
TypeError [ERR_INVALID_ARG_TYPE]: The "url" argument must be of type string. Received type object.

但是当我用第1行检查它时，在HTML页面上它表示变量文本是STRING ....

我应该如何纠正它？

节点js代码如下：

function operation(){
    var x = document.getElementById("num1");
    var text="";
    text = x.elements[0].value;
    document.getElementById("yoo").innerHTML = typeof text;  //line 1
    location.href = "http://localhost:3306" + "?number1=" + text;
}

Answer 1

您需要将URL字符串传递给url.parse而不是请求对象。使用request.url。 Node.JS文档https://nodejs.org/api/url.html#url_url_parse_urlstring_parsequerystring_slashesdenotehost

将String从HTML表单传递到节点js时出错

1 个答案: