nodejs压缩解压缩（加密）

var exec = require(‘child_process‘).exec;  //引入child_process模块

exports.execCmd = function(cmdStr,next){
    exec(cmdStr,function(err,stdout,stderr){
        next({
            err:err,
            stdout:stdout,
            stderr:stderr
        });
    });
}

/*
方法名：rar解压缩
参数：
 password
 zipFilePath
 tgtFilePath
例如：
 var password ="20170313",
 zipFilePath ="D:/test/18_20170313.rar",
 srcFilePath = "D:/test/18_20170313";
 cmdStr = "rar x -P20170313 D:\test\18_20170313.rar D:\test\18_20170313 -y"

 * */
var fs = require("fs");
var exec = require(‘child_process‘).exec;

exports.unrar = function(param,next){
    console.log("param:",param);
    var cmdStr = "rar x -P"+param.password+" "+param.zipFilePath+" "+param.tgtFilePath+" -y";
    console.log("cmd:",cmdStr);
    fs.exists(param.tgtFilePath, function(exists) {  //判断路径是否存在
        //console.log(">> exists:",exists);
        if(exists) {
            exec(cmdStr,function(err,stdout,stderr){  //执行命令行
                fs.readdir(param.filesPathInPro,next);
            });
        } else {
            fs.mkdir(param.tgtFilePath,function(){  //创建目录
                exec(cmdStr,function(err,stdout,stderr){  //执行命令行
                    fs.readdir(param.filesPathInPro,next);
                });
            });
        }
    });
}

/*
方法名：rar压缩
参数：
password
zipFilePath
srcFilePath
例如：
var password ="20170313",
zipFilePath ="D:/test/18_20170313.rar",
srcFilePath = "D:/test/18_20170313";
cmdStr ="rar a -ep -P20170313 D:\test\18_20170313.rar D:\test\18_20170313"
 * */

var fs = require("fs");
var exec = require(‘child_process‘).exec;

exports.rar = function(param,next){
    var cmdStr = ‘rar a -ep -P‘+param.password+‘ ‘+param.zipFilePath+‘ ‘+param.srcFilePath+‘ -y‘;
    console.log(">> cmdStr:",cmdStr);
    fs.exists(param.srcFilePath, function(exists) {  //判断路径是否存在
        if(exists) {
            exec(cmdStr,next);
        } else {
            next({
                code:400,
                msg:"源文件找不到"
            })
        }
    });
}