10 examples of 'xmlhttprequest send' in JavaScript

134
send() {
135
    this.sending = true;
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    const xhr = this.xhr = new XMLHttpRequest();
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    try {
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        xhr.open(this.type, this.url, true, this.username, this.password);
139
    } catch (ieOpenError) {
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        // IE：地址错误时可能产生异常。
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        this.progress(ieOpenError, -3);
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        return false;
143
    }
144
145
    for (const header in this.headers) {
146
        try {
147
            xhr.setRequestHeader(header, this.headers[header]);
148
        } catch (firefoxSetHeaderError) {
149
            // FF：跨域时设置头可能产生异常。
150
        }
151
    }
152
    if (this.contentType) {
153
        try {
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            xhr.setRequestHeader("Content-Type", this.contentType);
155
        } catch (firefoxSetHeaderError) {
156
            // FF：跨域时设置头可能产生异常。
157
        }
158
    }
159
    if (this.withCredentials) {
160
        xhr.withCredentials = true;
161
    }
162
    if (this.responseType && (this.responseType === "arraybuffer" || this.responseType === "blob")) {
163
        xhr.responseType = this.responseType;
164
    }
165
166
    try {
167
        xhr.onreadystatechange = this.progress;
168
        xhr.send(this.data);
169
    } catch (sendError) {
170
        // 地址错误时会产生异常。
171
        this.progress(sendError, -4);
172
        return false;
173
    }
174
    if (this.timeout >= 0) {
175
        setTimeout(this.progress, this.timeout, "Timeout", -2);
176
    }
177
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    return true;
179
}

142
function getXMLHttpRequest() {
143
    if (global.XMLHttpRequest) {
144
        return new global.XMLHttpRequest;
145
    } else {
146
        try {
147
            return new global.ActiveXObject('Microsoft.XMLHTTP');
148
        } catch (e) {
149
            throw new Error('XMLHttpRequest is not supported by your browser');
150
        }
151
    }
152
}

72
send(data) {
73
  debug(`Sending request data: ${data}`);
74
  if (this.sandbox) this.sandbox.add(this);
75
  let request = this.request;
76
  request.send(data);
77
  return new Promise(function(resolve, reject) {
78
    request.onreadystatechange = function() {
79
      if (request.readyState !== 4 /* done */) {
80
        return;
81
      }
82
83
      if (request.status < 200 || request.status >= 400) {
84
        return reject(new Error(`Bad status: ${request.status}`));
85
      }
86
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      return resolve(request.responseText);
88
    };
89
90
    request.ontimeout = function() {
91
      reject(new Error(`Request timed out after ${request.timeout} ms`));
92
    };
93
  });
94
}

296
_startXhr(method, url, headers, body) {
297
    var xhr = new global.XMLHttpRequest();
298
299
    // If header has Authorization, and cors is available, then set the
300
    // withCredentials flag.
301
    if (this.withCredentials && corsAvailable) {
302
        xhr.withCredentials = true;
303
    }
304
305
    var self = this;
306
    xhr.onreadystatechange = function () { self._xhrCallback(); };
307
    xhr.open(method, url, true);
308
309
    for (var key in headers) {
310
        if (headers.hasOwnProperty(key)) {
311
            xhr.setRequestHeader(key, headers[key]);
312
        }
313
    }
314
315
    xhr.send(body);
316
317
    consoleUtilities.log("info", "XHR start " + url);
318
319
    return xhr;
320
}

41
send(){
42
  var uri = this.uri + (this.uri.indexOf('?') >= 0 ? '&' : '?') + this.callbackParameterName + '=' + this.callbackName;
43
44
  window[this.callbackName] = (data) => {
45
    delete window[this.callbackName];
46
    document.body.removeChild(script);
47
48
    if(this.status === undefined){
49
      this.status = 200;
50
      this.statusText = 'OK';
51
      this.response = data;
52
      this["onload"](this);
53
    }
54
  };
55
56
  var script = document.createElement('script');
57
  script.src = uri;
58
  document.body.appendChild(script);
59
60
  if(this.timeout !== undefined){
61
    setTimeout(() => {
62
      if(this.status === undefined){
63
        this.status = 0;
64
        this["ontimeout"](new Error('timeout'));
65
      }
66
    }, this.timeout);
67
  }
68
}

4
function execXMLHttpRequest()
5
{
6
  xhr = new XMLHttpRequest();
7
  xhr.open("GET",document.getElementById("url").value,false);
8
  xhr.setRequestHeader('My-Custom-Header', 'Some Value');
9
  xhr.send();
10
  document.getElementById('ta').value = "Status Code: "+xhr.status+"\n\n"+xhr.responseText;
11
}

3
function xhr(method, url, data, callback){
4
	var x = new XMLHttpRequest();
5
	x.onreadystatechange = function(){
6
		if(x.readyState == 4){
7
			if(x.status == 200 || x.status == 204){
8
				callback(x.responseText);
9
			}else{
10
				console.error(method, url, x.status, x.statusText, x.responseText);
11
			}
12
		}
13
	};
14
	x.open(method, url);
15
	x.send(data);
16
}

7
function getXHR() {
8
  if (window.XMLHttpRequest
9
    && ('file:' !== window.location.protocol || !window.ActiveXObject)) {
10
    return new XMLHttpRequest();
11
  } else {
12
    try { return new ActiveXObject('Microsoft.XMLHTTP'); } catch(e) {}
13
    try { return new ActiveXObject('Msxml2.XMLHTTP.6.0'); } catch(e1) {}
14
    try { return new ActiveXObject('Msxml2.XMLHTTP.3.0'); } catch(e2) {}
15
    try { return new ActiveXObject('Msxml2.XMLHTTP'); } catch(e3) {}
16
  }
17
  return false;
18
}

31
function createXHR() {
32
    var xhr;
33
34
    if (typeof XMLHttpRequest !== 'undefined') {
35
        xhr = new XMLHttpRequest();
36
    }
37
    else if (typeof window.ActiveXObject !== 'undefined') {
38
        var progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0'];
39
        for (var i = 0; i < 3; i += 1) {
40
            try {
41
                xhr = new window.ActiveXObject(progIds[i]);
42
                break;
43
            } catch (e) {}
44
        }
45
    }
46
    return xhr;
47
}

119
export function createXHR() {
120
  if (window.XMLHttpRequest) {
121
    return new XMLHttpRequest();
122
  }
123
  return new window.ActiveXObject("Microsoft.XMLHTTP");
124
}