jquery序列化form表单使用ajax提交后处理返回的json数据

/** 将一个字符串输出到浏览器 */
    protected void writeJson(String json) {
        PrintWriter pw = null;
        try {
            servletResponse.setContentType("text/plain;charset=UTF-8");
            pw = servletResponse.getWriter();
            pw.write(json);
            pw.flush();
            pw.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (pw != null) {
                pw.close();
            }
        }
    }

$.ajax({
        data:{
            "shipmmsi":shipmmsi,
            "shipname":shipname
        },
        url : "shipbk/findShipMMSIAndName.do",
        async : true,
        type : "POST",
        success : function(data) {
            var ships = eval('(' + data + ')');
            $("#bindShipmmsiDiv table tbody").html("");
            if(ships!=null){
                if(ships.length){
                    $("#bindShipmmsiDiv").show();
                    var trs="";
                    for(var i=0;i<ships.length;i++){
                        trs+="<tr><td>"+ships[i].mmsi+"</td><td>"+ships[i].vesselName+"</td></tr>";
                    }
                    $("#bindShipmmsiDiv table tbody").append(trs);
                    //给tr注册点击事件
                    $("#bindShipmmsiDiv table tbody tr").click(function(){
                        $(this).addClass('select_tr').siblings().removeClass('select_tr');
                    });
                    $("#bindShipmmsiDiv table tbody tr").dblclick(function(){
                        fillShipMMSIAndName(this);
                        $("#bindShipmmsiDiv").hide();
                    });
                }
            }
        }
    });

$.ajax({
　　url : 'deliveryWarrant/update.do',
　　data : $('#myform').serialize(),
　　type : "POST",
　　success : function(data) {
　　　　var res = eval('(' + data + ')');
　　　　if (res && res.success == true) {   
　　　　　　alert(res.message);
　　　　location.href="/godownWarrant/findToDeliveryWarrant.do?godownWarrant.code="+$("#myform input[name=godownWarrant//.code]").val();
　　　　} else {
　　　　　　alert(res.message);
　　　　}
　　}
});