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r=E5=8C=85 http://www.json.org/java/index.html=20
      =
API=E4=B9=9F=E5=BE=88=E7=AE=80=E5=8D=95=EF=BC=8C=E4=B8=8B=E9=9D=A2=E4=B8=BE=
=E4=B8=AA=E4=BE=8B=E5=AD=90 =
<BR>=E5=9C=A8javascript=E4=B8=AD=E5=A1=AB=E5=8A=A0=E8=AF=B7=E6=B1=82=E5=8F=
=82=E6=95=B0 <BR>js =E4=BB=A3=E7=A0=81 <BR><BR><PRE class=3Djava =
name=3D"code">function sendRequest() {   =20
    var carr =3D new Car("Dodge", "Coronet R/T", 1968, "yellow");   =20
    var pars =3D "car=3D" + carr.toJSONString();   =20
  =20
    var url =3D "/MyWebApp/JSONTest1";   =20
    var mailAjax =3D new Ajax.Request(   =20
        url,   =20
        {   =20
            method: 'get',   =20
            parameters: pars,   =20
            onComplete: jsonResponse   =20
        }   =20
    );   =20
}   =20
</PRE><BR><BR><BR>=E4=BD=BF=E7=94=A8JSON=E8=AF=B7=E6=B1=82=E5=AD=97=E7=AC=
=A6=E4=B8=B2=E5=B0=B1=E5=8F=AF=E4=BB=A5=E7=AE=80=E5=8D=95=E7=9A=84=E7=94=9F=
=E6=88=90JSONObject=E5=B9=B6=E8=BF=9B=E8=A1=8C=E8=A7=A3=E6=9E=90,=E4=BF=AE=
=E6=94=B9servlet=E6=B7=BB=E5=8A=A0JSON=E7=9A=84=E5=A4=84=E7=90=86(=E8=A6=81=
=E4=BD=BF=E7=94=A8json.jar)=20
      <BR>java =E4=BB=A3=E7=A0=81 <BR><PRE class=3Djava =
name=3D"code">private void doService(HttpServletRequest request, =
HttpServletResponse response) throws IOException {   =20
        String s3 =3D request.getParameter("car");   =20
        try {   =20
            JSONObject jsonObj =3D new JSONObject(s3);   =20
            System.out.println(jsonObj.getString("model"));   =20
            System.out.println(jsonObj.getInt("year"));   =20
        } catch (JSONException e) {   =20
            e.printStackTrace();   =20
        }   =20
        response.getWriter().print("{ \"name\": \"Violet\", =
\"occupation\": \"character\" }");   =20
    }  =20
</PRE><BR><BR>=E5=90=8C=E6=A0=B7=E5=8F=AF=E4=BB=A5=E4=BD=BF=E7=94=A8JSONO=
bject=E7=94=9F=E6=88=90JSON=E5=AD=97=E7=AC=A6=E4=B8=B2=EF=BC=8C=E4=BF=AE=E6=
=94=B9servlet <BR>java =E4=BB=A3=E7=A0=81 <BR><BR><PRE class=3Djava =
name=3D"code">private void doService(HttpServletRequest request, =
HttpServletResponse response) throws IOException {   =20
        String s3 =3D request.getParameter("car");   =20
        try {   =20
            JSONObject jsonObj =3D new JSONObject(s3);   =20
            System.out.println(jsonObj.getString("model"));   =20
            System.out.println(jsonObj.getInt("year"));   =20
        } catch (JSONException e) {   =20
            e.printStackTrace();   =20
        }   =20
           =20
        JSONObject resultJSON =3D new JSONObject();   =20
        try {   =20
            resultJSON.append("name", "Violet")   =20
                      .append("occupation", "developer")   =20
                      .append("age", new Integer(22));   =20
            System.out.println(resultJSON.toString());   =20
        } catch (JSONException e) {   =20
            e.printStackTrace();   =20
        }   =20
        response.getWriter().print(resultJSON.toString());   =20
    }   =20
</PRE><BR><BR><BR>js =E4=BB=A3=E7=A0=81 <BR><BR><PRE class=3Djava =
name=3D"code">function jsonResponse(originalRequest) {   =20
    alert(originalRequest.responseText);   =20
    var myobj =3D originalRequest.responseText.evalJSON(true);   =20
    alert(myobj.name);   =20
    alert(myobj.age);   =20
}  =20
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