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jquer和servlet如何传递json

例 3.6
马克- to-win：马克 java社区：防盗版实名手机尾号： 73203。
<html>
<head>
<script src="jquery.js"></script>
<script type="text/javascript">
    function getP(id) {
        $.getJSON("jqueryservlet36", {
            id : id
        }, function(obj) {
            for ( var p in obj) {
                //Servlet 返回值是{type:'"+type+"',price:'"+price+"'}"这样的JSON对象
                //$("#info").toggle();找id为info的元素
                $("#" + p).html(obj[p]);
                /* document.getElementById(p).innerHTML = obj[p];和下一句一样。
                 $("#"+p).html(obj[p]);
                 */
            }
        })
    }
</script>
</head>
<body>
    <table width="340" border="1">
        <tr>
            <td id="1" onclick="getP('1')">点这1</td>
            <td id="2" onclick="getP('2')">点这2</td>
        </tr>
    </table>

    <table width="340" border="1">
        <tr>
            <td width="170">参数项</td>
            <td width="170">参数值</td>
        </tr>
        <tr>
            <td>型号</td>
            <td id="type"> </td>
        </tr>
        <tr>
            <td>价格</td>
            <td id="price"> </td>
        </tr>
    </table>
</body>
</html>

package helloWorld;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class jqueryservlet36 extends HttpServlet {
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String id = request.getParameter("id");
        String str = "";
        String type = "";
        String price = "";
        type = "qixyADSL" + id;
        price = "qixy333" + id;
        str = "{type:'" + type + "',price:'" + price + "'}";
        out.print(str);
        System.out.print(str);
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        this.doGet(request, response);

    }
}

js jquery