GET请求中的setRequestHeader错误 [英] Error with setRequestHeader in GET request

问题描述

以下JS函数应该向

http://127.0.0.1:5000/api.xml

与

?query = toast

?query=toast

function sendRequest(str){
    var request = new XMLHttpRequest();
    console.log('sending request');
    request.onreadystatechange = function() {
        if (request.readyState == XMLHttpRequest.DONE) {
            json=request.responseText;
            //json.forEach(function(obj) { 
            //});
            for (word in json){
                var row=table.insertRow();
                var scoreC=row.insertCell();
                var wordC=row.insertCell();
                scoreC.innerHTML=json[word];
                wordC.innerHTML=word;
            }
        } else {
            concole.log("Silence on the line");
        }
    }
    request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    request.open('GET', 'http://127.0.0.1:5000/api.xml?query='+str, true);
    request.send();
  // and give it some content 
    //var newContent = document.createTextNode(resp); 
    //console.log(resp.responseType);
}

相反，它总是查询

http://127.0.0.1:5000/?word=toast

忽略了我需要GET的事实

ignoring the fact that I required a GET on

http://127.0.0.1:5000/api.xml

推荐答案

1)Stephan Schrijver排队

1)As Stephan Schrijver lined out

request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');

仅在遵循

request.open('POST', 'http://127.0.0.1:5000/api.xml?query='+str, true);

作为 POST请求

它是不再需要GET请求

2)另外

request.open('GET', 'http://127.0.0.1:5000/api.html?query='+str, true);

必须在readyStateChange函数之前定义

must be defined before the readyStateChange function

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