JavaScript怎么获取服务端返回的json?

JavaScript怎么获取服务端返回的json?,第1张

用jquery的ajax组件可以很快实现js发送请求。参考以下JS代码

<script>

$(function(){

var url = "http://abc.com"//你的请求url

//发起get请求

$.get(url, function(res){

console.log('ajax_get========', res)

},'json')

})

//发起post请求

var postdata = {

'id':'123'

}//post提交的参数

$.post(url, postdata, function(res){

console.log('ajax_get========', res)

},'json')

})

</script>

json数据格式解析我自己分为两种;

一种是普通的,一种是带有数组形式的;

普通形式的:

服务器端返回的json数据格式如下:

复制代码代码如下:

{"userbean":{"Uid":"100196","Showname":"\u75af\u72c2\u7684\u7334\u5b50","Avtar":null,"State":1}}

分析代码如下:

复制代码代码如下:

// TODO 状态处理 500 200

int res = 0

res = httpClient.execute(httpPost).getStatusLine().getStatusCode()

if (res == 200) {

/*

* 当返回码为200时,做处理

* 得到服务器端返回json数据,并做处理

* */

HttpResponse httpResponse = httpClient.execute(httpPost)

StringBuilder builder = new StringBuilder()

BufferedReader bufferedReader2 = new BufferedReader(

new InputStreamReader(httpResponse.getEntity().getContent()))

String str2 = ""

for (String s = bufferedReader2.readLine()s != nulls = bufferedReader2

.readLine()) {

builder.append(s)

}

Log.i("cat", ">>>>>>" + builder.toString())

JSONObject jsonObject = new JSONObject(builder.toString())

.getJSONObject("userbean")

String Uid

String Showname

String Avtar

String State

Uid = jsonObject.getString("Uid")

Showname = jsonObject.getString("Showname")

Avtar = jsonObject.getString("Avtar")

State = jsonObject.getString("State")

带数组形式的:

服务器端返回的数据格式为:

复制代码代码如下:

{"calendar":

{"calendarlist":

[

{"calendar_id":"1705","title":"(\u4eb2\u5b50)ddssd","category_name":"\u9ed8\u8ba4\u5206\u7c7b","showtime":"1288927800","endshowtime":"1288931400","allDay":false},

{"calendar_id":"1706","title":"(\u65c5\u884c)","category_name":"\u9ed8\u8ba4\u5206\u7c7b","showtime":"1288933200","endshowtime":"1288936800","allDay":false}

]

}

}

分析代码如下:

复制代码代码如下:

// TODO 状态处理 500 200

int res = 0

res = httpClient.execute(httpPost).getStatusLine().getStatusCode()

if (res == 200) {

/*

* 当返回码为200时,做处理

* 得到服务器端返回json数据,并做处理

* */

HttpResponse httpResponse = httpClient.execute(httpPost)

StringBuilder builder = new StringBuilder()

BufferedReader bufferedReader2 = new BufferedReader(

new InputStreamReader(httpResponse.getEntity().getContent()))

String str2 = ""

for (String s = bufferedReader2.readLine()s != nulls = bufferedReader2

.readLine()) {

builder.append(s)

}

Log.i("cat", ">>>>>>" + builder.toString())

/**

* 这里需要分析服务器回传的json格式数据,

*/

JSONObject jsonObject = new JSONObject(builder.toString())

.getJSONObject("calendar")

JSONArray jsonArray = jsonObject.getJSONArray("calendarlist")

for(int i=0i<jsonArray.length()i++){

JSONObject jsonObject2 = (JSONObject)jsonArray.opt(i)

CalendarInfo calendarInfo = new CalendarInfo()

calendarInfo.setCalendar_id(jsonObject2.getString("calendar_id"))

calendarInfo.setTitle(jsonObject2.getString("title"))

calendarInfo.setCategory_name(jsonObject2.getString("category_name"))

calendarInfo.setShowtime(jsonObject2.getString("showtime"))

calendarInfo.setEndtime(jsonObject2.getString("endshowtime"))

calendarInfo.setAllDay(jsonObject2.getBoolean("allDay"))

calendarInfos.add(calendarInfo)

}

总结,普通形式的只需用JSONObject ,带数组形式的需要使用JSONArray 将其变成一个list。


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原文地址:https://www.xiayuyun.com/zonghe/183467.html

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