服务器端response返回多条数据，客户端怎么接收？

[Coder .]

服务器端返回了三条数据，客户端通过解析json只能获得一条数据，然后通过浏览器访问就能看到三条，以下是客户端，服务器端的代码，求大佬指教

[Coder .]

服务器端代码
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("application/json;charset=utf-8");
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();

//获得请求中传来的用户名和密码

String username=request.getParameter("username").trim();
List<User> lst2 = UserDAO.getOracleFindAll(username);
User user;
JSONObject a= new JSONObject();


for(int i=0;i<lst2.size();i++){
user=lst2.get(i);
String classname=user.getclassname();
String coursename=user.getcoursename();
String num=user.getnum();
String requested=user.getrequested();
a.put("username", username);
a.put("classname", classname);
a.put("coursename", coursename);
a.put("num", num);
a.put("requested", requested);
out = response.getWriter();
out.println(a);
}

}

[Coder .]

android端代码
RequestQueue mQueue = Volley.newRequestQueue(MainActivity.this);
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(jsonurl, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {

String classname;
String coursename;

classname= new String(new String(response.getString("classname")));
coursename =new String(new String(response.getString("coursename")));
classname a = new classname(classname, coursename);
System.out.println(coursename);

classnameList.add(a);

Adapter adapter=new Adapter(classnameList);

recyclerView.setAdapter(adapter);
} catch (JSONException e) {

Log.e("json错误",e.getMessage());
}
}
},

[Coder .]

已解决问题！！！！！！！！

[Krisez]

我就想看看图。。。。

[捞捞鸭]

图都糊了QAQ. 可是我想知道怎么接收的