js读取本地磁盘文本文件并保存为JSON数据(有格式的文本)

主要的代码是红色区域，HTML5获取本地文件对象并进行操作

//给上传按钮添加点击事件    $(".myappTXTUploadBtn").click(function(){        var filepath = $(".uploadFace").val().trim();        if(filepath == ""){            showBlackPage("请您选择要上传的txt文件","请您选择要上传的txt文件");            return;        }        var last = filepath.substr(filepath.lastIndexOf(".")+1);        if(last == "txt"){            var file = $(".uploadFace")[0].files[0];            var reader = new FileReader();            reader.readAsText(file, "GB2312");            var urlData;            reader.onload = function (e) {                urlData = this.result;                var dataarray = urlData.split("\n");                var objs = "[";                var index = 1;                for(var i=0;i<dataarray.length;i++){                    var data = dataarray[i].trim();                    if(data == ""){                        continue;                    }else{                        var namestart = data.indexOf("【");                        var nameend = data.lastIndexOf("】");                        var str = "";                        if(namestart != -1 && nameend != -1){                            var obj = {};                            obj.replytxt = data.substr(namestart+1,nameend-1);                            str += data.substr(namestart+1,nameend-1);                            var imgstart = data.indexOf("〖");                            var imgend = data.lastIndexOf("〗");                            if(imgstart != -1 && imgend != -1){                                obj.receiveimg = data.substr(imgstart+1,imgend-nameend-2);                                str += "\n"+data.substr(imgstart+1,imgend-nameend-2);                                obj.receivetxt = data.substr(imgend+1);                                str += "\n"+data.substr(imgend+1);                            }else{                                obj.receivetxt = data.substr(nameend+1);                                str += "\n"+data.substr(nameend+1);                            }                            obj.myappid = index;                            index++;                            objs += JSON.stringify(obj)+",";                        }else{                            continue;                        }                    }                }                objs = objs.substr(0,objs.lastIndexOf(","));                objs += "]"                if(weixinid != ""){                    $.ajax({                        type:"POST",                        url:"/api2/app/myappadd?",                        data:{                            weixinid:weixinid,                            "myapp":objs                        },                        success:function(serverData){                            showBlackPage(serverData["提示信息"],serverData["提示信息"]);                        }                    });                }else{                    alert("您还没有绑定微信公众账号");                }            }        }else{            alert("您上传的不是txt文件");        }    });