Below is the Ajax code that I want to perform. The page is the website of Pusan National University and I got the data I wanted from the basic html code, but I couldn't get the information from Ajax call like the subject manual.
So when I looked for it, they said that I should put the parameter in json when parsing, so I tried to implement the code once, but it didn't work.
I don't know if I put json's data wrong or because of the url additional below.
$.ajax({
url : "/middleware/curriculum/allocationOfPeople/searchPeriod",
type : 'POST',
dataType : 'json',
data : JSON.stringify(paramMap),
contentType : 'application/json',
success : function(data) {
var datas=data.dataset1;
var isOK=datas[0].Duration;
var url;
var type=$("#searchType1").is(":checked");
var paramMap = {};
var year=$("#year").val();
var semester=$("#semester").val();
var subject_is=$("#subject_is").val();
if(isOK=="Y"){
if(type==true){
var refinementAndMajor=$("#refinementAndMajor").val();
url="/middleware/curriculum/college/CollegeAssignInfoSearch";
paramMap["pName"] = [ "YEAR", "TERM","DEPTCD","CULTCD","GUBUN"];
if(subject_is=='3'){
paramMap["pValue"] = [ year,semester,"",refinementAndMajor,subject_is];
}else{
paramMap["pValue"] = [ year,semester,refinementAndMajor,"",subject_is];
}
}else{
var r_type_input=$("#r_type_input").val();
url="/middleware/curriculum/college/curriculumCollegeSubjectAssignInfoSearch";
paramMap["pName"] = ["YEAR", "TERM", "GUBUN"];
paramMap["pValue"] = [ year,semester,subject_is,r_type_input];
}
}else{
if(type==true){
var refinementAndMajor=$("#refinementAndMajor").val();
url="/middleware/curriculum/college/CollegeSearch";
paramMap["pName"] = [ "YEAR", "TERM","DEPTCD","CULTCD","GUBUN"];
if(subject_is=='3'){
paramMap["pValue"] = [ year,semester,"",refinementAndMajor,subject_is];
}else{
paramMap["pValue"] = [ year,semester,refinementAndMajor,"",subject_is];
}
}else{
var r_type_input=$("#r_type_input").val();
url="/middleware/curriculum/college/curriculumCollegeSubjectSearch";
paramMap["pName"] = ["YEAR", "TERM", "GUBUN"];
paramMap["pValue"] = [ year,semester,subject_is,r_type_input];
}
}
fn_search(url,paramMap,subject_is,isOK);
},
error : function(data, status, er) {
alert("error: " + data + " status: " + status + " er:" + er);
}
});```
Below is the Java implementation to reproduce the above ajax.
private static String getHttpHTML_POST() {
String url="http://e-onestop.pusan.ac.kr/menu/class/C03/C03001/";
String sb="";
try {
URL object=new URL(url);
HttpURLConnection con = (HttpURLConnection) object.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.setRequestProperty("Content-Type", "application/json");
con.setRequestProperty("Accept", "*/*");
con.setRequestProperty("X-Requested-With", "XMLHttpRequest");
con.setRequestMethod("POST");
JSONObject data = new JSONObject();
data.put("YEAR","2016");
data.put("TERM", "10");
data.put("DEPTCD","346712");
data.put("CULTCD", "");
data.put("GUBUN", "1");
OutputStreamWriter wr= new OutputStreamWriter(con.getOutputStream());
wr.write(data.toString());
wr.flush();
//display what returns the POST request
int HttpResult =con.getResponseCode();
if(HttpResult ==HttpURLConnection.HTTP_OK){
BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream(),"utf-8"));
String line = null;
while ((line = br.readLine()) != null) {
sb = sb+line + "\n";
}
br.close();
System.out.println(""+sb.toString());
}else{
System.out.println(con.getResponseMessage());
}
}
catch (Exception e) {
e.printStackTrace();
}
finally {
}
return sb;
}
Analyzing the ajax code is good, but I think it would be better to see what code actually comes out on the browser when it works.
First, turn on Chrome-Tools More-Developer Tools and leave the Network tab open. Open http://e-onestop.pusan.ac.kr/menu/class/C03/C03001/ and select the details in basic English and press Search to post to the address below.
http://e-onestop.pusan.ac.kr/middleware/curriculum/college/CollegeAssignInfoSearch
And JSON is in the following form on the payload.
{pName: ["YEAR", "TERM", "DEPTCD", "CULTCD", "GUBUN"], pValue: ["2016", "10", "", "11750", "3"]}
The response comes as follows:
{"dataset1":[{"credit":1.0,"professor number":"111694","school code":"611000,"school name":"Basic English","department name":"Professor" Jang Kyung-chul","Lecture Time":"Wednesday 09:00,"2001,"101,"University,101"College student name:"College student
The JSON format that works in the browser and the Java code you wrote look different.
data.put("pName", new JSONARray("YEAR","TERM"...); should be written like this.
For your information, check out this lecture for instructions on how to use developer tools in your Chrome browser.
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