jsp

显示歌单

* {

margin: 0;

padding: 0;

}

table {

height: 100px;

width: 1100px;

margin: 0 auto;

}

input {

height: 50px;

width: 300px;

font-size: 20px;

}

$("input[type=button]").click(function (event) {

var $cTag = $(event.target);

$.ajax({

url:"/listServlet",

type:"post",

data:{

flag:$cTag.attr("flag"),

},

dataType:"json",

success:function (result) {

$(".div1").html("

"+result.song1+"

"+"

"+result.song2+"

"+"

"+result.song3+"

");

}

});

});

servlet@WebServlet("/listServlet")

public class listServlet extends HttpServlet {

@Override

protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

JSONObject jsonObject = null;

String id = req.getParameter("flag");

if(id.equals("1")){

jsonObject =new JSONObject("{song1=稻香,song2=告白气球,song3=晴天}");

}else if(id.equals("2")){

jsonObject =new JSONObject("{song1=千千阙歌,song2=傻女,song3=七友}");

}else{

jsonObject =new JSONObject("{song1=一块红布,song2=存在,song3=北京北京}");

}

resp.getOutputStream().write(jsonObject.toString().getBytes("UTF-8"));

}

浏览器报错信息

jsp显示歌单 * { margin: 0; padding: 0; } table { height: 100px; width: 1100px; margin: 0 auto; } input { height: 50px; width: 300px; font-size: 20px; } $("input[type=button]").click(function (event) { var $cTag = $(event.target); $.ajax({ url:"/listServlet", type:"post", data:{ flag:$cTag.attr("flag"), }, dataType:"json", success:function (result) { $(".div1").html(" "+result.song1+""+" "+result.song2+""+" "+result.song3+""); } }); }); servlet@WebServlet("/listServlet") public class listServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { JSONObject jsonObject = null; String id = req.getParameter("flag"); if(id.equals("1")){ jsonObject =new JSONObject("{song1=稻香,song2=告白气球,song3=晴天}"); }else if(id.equals("2")){ jsonObject =new JSONObject("{song1=千千阙歌,song2=傻女,song3=七友}"); }else{ jsonObject =new JSONObject("{song1=一块红布,song2=存在,song3=北京北京}"); } resp.getOutputStream().write(jsonObject.toString().getBytes("UTF-8")); } 浏览器报错信息

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