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/**
* Created by Lemon on 17/5/8.
*/
var url_base = "http://139.196.140.118:8080";
var url_get = url_base + "/get";
var url_head = url_base + "/head";
var url_post_get = url_base + "/post_get";
var url_post_head = url_base + "/post_head";
var url_post = url_base + "/post";
var url_put = url_base + "/put";
var url_delete = url_base + "/delete";
/**包含
* @param obj
* @returns {boolean}
*/
Array.prototype.contains = function (obj) {
for (var i = 0; i < this.length; i ++) {
if (this[i] === obj) {
return true;
}
}
return false;
}
/**请求方法
* @type {Array}
*/
var Method = new Array(
/**
* 常规获取数据方式
*/
"get",
/**
* 检查，默认是非空检查，返回数据总数
*/
"head",
/**
* 通过POST来GET数据，不显示请求内容和返回结果，一般用于对安全要求比较高的请求
*/
"post_get",
/**
* 通过POST来HEAD数据，不显示请求内容和返回结果，一般用于对安全要求比较高的请求
*/
"post_head",
/**
* 新增(或者说插入)数据
*/
"post",
/**
* 修改数据，只修改传入字段对应的值
*/
"put",
/**
* 删除数据
*/
"delete"
)
/**请求
* @param url
* @param rq
*/
function request(url, json, notAlertRequest, onreadystatechange) {
var rqf = format(JSON.stringify(json));
var rq = encodeURI(JSON.stringify(encode(json))); // JSON.stringify(encode(json)); //
var method = url.substring(url.lastIndexOf("/") + 1, url.length);
// alert("method=" + method);
if (method == null || Method.contains(method) == false) {
alert("method is empty! url must endsWith \"/[method]\" !");
return;
}
var isGet = method === Method[0] || method === Method[1];
// alert("isGet=" + isGet);
var METHOD = method.toUpperCase();
if (! notAlertRequest) {
alert("Request(" + METHOD + "):\n" + rqf);
}
//原生请求<<<<<<<<<<<<<<<<<<<<<<<<<<
var request = new XMLHttpRequest();
request.open(isGet ? "GET" : "POST", url + (isGet ? "/" + rq : ""), true);
if (isGet == false) {
request.setRequestHeader("Content-type", "application/json");
}
request.onreadystatechange = onreadystatechange != null ? onreadystatechange : function () {
if (request.readyState !== 4) {
return;
}
if (request.status === 200) {
alert("Response(" + METHOD + "):\n" + format(request.responseText));
} else {
alert("Response(" + METHOD + "):\nstatus" + request.status + "\nerror:" + request.error);
}
}
request.send(isGet ? null : rq);
//原生请求>>>>>>>>>>>>>>>>>>>>>>>>>>
//JQuery ajax请求<<<<<<<<<<<<<<<<<<<<<<<<<<
// $.ajax({
// type: isGet ? "GET" : "POST",
// url: isGet ? url + "/" + rq : url,
// contentType: "application/json", //必须
// dataType: "json", //返回值类型，非必须
// data: isGet ? null : rq,
// success: function (response) {
// alert(response);
// }
// });
//JQuery ajax请求>>>>>>>>>>>>>>>>>>>>>>>>>>
//VUE axios请求<<<<<<<<<<<<<<<<<<<<<<<<<<
// if (isGet) {
// axios.get(url + "/" + rq, null)
// .then(function (response) {
// console.log(response);
// })
// .catch(function (error) {
// console.log(error);
// });
// } else {
// axios({
// method: 'post',
// url: url + "/",
// data: json
// }).then(function (response) {
// alert(response);
// }).catch(function (error) {
// alert(error);
// });
// }
//VUE axios请求>>>>>>>>>>>>>>>>>>>>>>>>>>
return request;
}
/**编码JSON，转义所有String
* @param json
*/
function encode(json) {
// alert("encode before:\n" + format(JSON.stringify(json)));
if (typeof json == "string") { //json instanceof String) {
json = encodeURIComponent(json);
}
else if (json instanceof Array) {
// alert("encode json instanceof Array");
for (var i = 0; i < json.length; i ++) {
// alert("json[" + i + "] = " + format(JSON.stringify(json[i])));
json[i] = encode(json[i]);
}
}
else if (json instanceof Object) {
// alert("encode json instanceof Object");
for (var key in json) {
// alert("encode json[" + key + "] = " + format(JSON.stringify(json[key])));
json[key] = encode(json[key]);
}
}
// alert("encode after:\n" + format(JSON.stringify(json)));
return json;
}
/**格式化JSON串
* @param json
*/
function format(json) {
return JSON.stringify(JSON.parse(json), null, "\t");
}