关于类似博客系统的原理

不会啊，你可以用json字符串接收数据返回给前台，你前台的html,css写好了的，把json字符串里面的数据加到html里面就可以了。贴一段jquery.ajax的方法：
 success: function(data, textStatus) { 
                       if (textStatus == "success") {
                           var htmlStr = "";
                if(data!="")
                {
                    $.each(data, function(i) {
                                htmlStr = htmlStr+"<tr><td>"
                                        + data[i].字段1+"</td><td>"
                                        + data[i].字段2 +"</td><td>"
                                        + data[i].字段3+"</td><td>"
                                        + data[i].字段4 +"</td></tr>";
                                       
                                            
                     });
                   $("#currentp").attr("value",pageNumn);
                   $("#body-backord").html(htmlStr);
                }