标签:instance prototype 实现 java 发送 send lse charset 编程
xhr以及用法见之前的文章
var _headerConfig = {};
if(url.indexOf('getcaptcha') !== -1) {
_headerConfig = {
Accept: 'image/png',
responseType: 'arraybuffer',
}
} else if(url.indexOf('files/upload') !== -1) {
_headerConfig = {
'Content-Type': 'multipart/form-data',
responseType: 'json',
}
} else {
_headerConfig = {
'Content-Type': 'application/json',
Accept: 'application/json',
responseType: 'json',
}
}
if("method" in options) {
options.method = options.method.toUpperCase();
} else {
options.method = "GET";
}
if(options.method !== "GET") {
if(!(options.params instanceof FormData)) {
options.params = JSON.stringify(options.params);
}
}
this.xhr.open(options.method, url, true);
for(var _i in _headerConfig) {
if(_i === 'responseType') {
this.xhr.responseType = _headerConfig[_i];
} else {
this.xhr.setRequestHeader(_i, _headerConfig[_i]);
}
}
if(token) {
this.xhr.setRequestHeader("token", token);
}
this.xhr.send(options.params);
这个问题结合链式编程一度的卡了很久。
ajax.prototype.complete = function(completeFunction) {
this.xhr.onreadystatechange = function(e) {
if(this.readyState === 4) {
completeFunction(this);
}
}
return this;
}
在项目中经常需要将request进行封装,使用ajax类发起请求。拼接请求的地址函数。
var requstUrl = {
baseURL: URL,
API: {
NEWS: '/news',
LOGIN: '/',
},
// api为API中的参数,用于拼接url
// method为API后的地址,用于拼接url最后面的东西。
// params为get请求需要的参数
createUrl: function(api, method, params) {
var _requestUrl = this.baseURL + this.API[api] + method;
if(params) {
for(var i of params) {
_requestUrl += (_requestUrl.indexOf("?") == -1 ? "?" : "&");
_requestUrl += name + "=" + value;
}
}
return _requestUrl;
}
}
function handleRequest() {
}
// get请求带参数。
handleRequest.prototype.getDataUseGet = function(api, method, params) {
var _url;
var ajax = new Ajax();
var token = sessionStorage.getItem('token');
if(params) {
_url = requstUrl.createUrl(api, method, params);
} else {
_url = requstUrl.createUrl(api, method);
}
return ajax.request(_url, {
method: 'GET',
params: params
}, token);
}
// get请求不带token
handleRequest.prototype.getDataUseGetWithoutToken = function(api, method, params) {
var _url;
var ajax = new Ajax();
if(params) {
_url = requstUrl.createUrl(api, method, params);
} else {
_url = requstUrl.createUrl(api, method);
}
return ajax.request(_url, {
method: 'GET',
params: params
});
}
// post请求带token
handleRequest.prototype.getDataUsePost = function(api, method, params) {
var _url = requstUrl.createUrl(api, method);
var token = sessionStorage.getItem('token');
var ajax = new Ajax();
console.log(createAjaxObj(_url, {
method: 'POST',
params: params
}, token));
return ajax.request(_url, {
method: 'POST',
params: params
}, token);
}
// post请求不带token
handleRequest.prototype.getDataUsePostWithOutToken = function(api, method, params) {
var _url = requstUrl.createUrl(api, method);
var ajax = new Ajax();
return ajax.request(_url, {
method: 'POST',
params: params
});
}
// put请求带token
handleRequest.prototype.getDataUsePut = function(api, method, params) {
var _url = requstUrl.createUrl(api, method);
var token = sessionStorage.getItem('token');
var ajax = new Ajax();
return ajax.request(_url, {
method: 'PUT',
params: params
}, token);
}
// put请求不带token
handleRequest.prototype.getDataUsePutWithOutToken = function(api, method, params) {
var _url = requstUrl.createUrl(api, method);
var ajax = new Ajax();
return ajax.request(_url, {
method: 'PUT',
params: params
});
}
// delete请求带token
handleRequest.prototype.deleteData = function(api, method, params) {
var _url = requstUrl.createUrl(api, method);
var token = sessionStorage.getItem('token');
var ajax = new Ajax();
return ajax.request(_url, {
method: 'DELETE',
params: params
}, token);
}
这个方法感觉可以再次进行封装。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
</body>
<script src="ip.js" type="text/javascript"></script>
<script src="xhr.js" type="text/javascript"></script>
<script src="request.js" type="text/javascript"></script>
<script type="text/javascript">
var data = {
"captcha": "string",
"password": "string",
"username": "string"
};
var test = new handleRequest();
test.getDataUsePostWithOutToken('LOGIN', 'login',data).complete(function(result) {
console.log(result)
})
</script>
</html>
成功发起请求。
完整代码点击查看
以上。
原文地址:https://segmentfault.com/a/1190000017006833
标签:instance prototype 实现 java 发送 send lse charset 编程
原文地址:https://www.cnblogs.com/lalalagq/p/9957981.html