node微信自动回复

微信号：laoli4316

let express = require('express'),
xmlTojs = require('xml2js').parseString;

let app = express();

app.use('/test',function(req,res){
    let buffer = [];
    req.on('data',function(data){
        buffer.push(data);
    });
    req.on('end',function(){
        let msgXml = Buffer.concat(buffer).toString('utf-8');
        xmlTojs(msgXml,{explicitArray:false},function(err,result){
            if(!err){
                result = result.xml;
                console.log(result);
                let fromUser = result.FromUserName,
                toUser = result.ToUserName;
                if(result.MsgType.toLowerCase()=='event'){
                    switch(result.Event.toLowerCase()){
                        case 'subscribe':
                                res.send(msg.txtMsg(fromUser,toUser,'欢迎您('+fromUser+')的关注！'));
                                break;
                    }
                }else if(result.MsgType.toLowerCase()=='text'){
                    switch(result.Content){
                        case '1':
                            res.send(msg.txtMsg(fromUser,toUser,'你个垃圾'));
                            break;
                        case '2':
                            res.send(msg.txtMsg(fromUser,toUser,'真尼玛操蛋'));
                            break;
                        case 'zs':
                            let contentArr = [
                                {
                                    Title: 'you are the beach',
                                    Description: '你就是个叉！',
                                    PicUrl: 'http://pic.qiantucdn.com/58pic/15/24/50/43Q58PICkj4_1024.jpg!/fw/780/watermark/url/L3dhdGVybWFyay12MS40LnBuZw==/align/center',
                                    Url: 'http://maoriaty.top'
                                },
                                {
                                    Title: '欢迎你！！',
                                    Description: 'common baby',
                                    PicUrl: 'http://g.hiphotos.baidu.com/image/pic/item/023b5bb5c9ea15ce80434db0bc003af33b87b2de.jpg',
                                    Url: 'http://maoriaty.top'
                                }
                            ]
                            res.send(msg.graphicMsg(fromUser,toUser,contentArr));
                            break;
                        default :
                            res.send(msg.txtMsg(fromUser,toUser,'格老子的'));
                            break;
                    }
                }
            }else{
                console.log(err);
            }
        });
    });
    
})
let msg = {
    'txtMsg': function(fromUser,toUser,content){
        let resXml = "<xml>"+
            "<ToUserName><![CDATA["+ fromUser +"]]></ToUserName>"+
            "<FromUserName><![CDATA["+ toUser +"]]></FromUserName>"+
            "<CreateTime>"+ new Date().getTime() +"</CreateTime>"+
            "<MsgType><![CDATA[text]]></MsgType>"+
            "<Content><![CDATA["+ content +"]]></Content></xml>";
        return resXml;
    },
    'graphicMsg': function(fromUser,toUser,contentArr){
        let xmlContent =  "<xml><ToUserName><![CDATA["+ fromUser +"]]></ToUserName>";
            xmlContent += "<FromUserName><![CDATA["+ toUser +"]]></FromUserName>";
            xmlContent += "<CreateTime>"+ new Date().getTime() +"</CreateTime>";
            xmlContent += "<MsgType><![CDATA[news]]></MsgType>";
            xmlContent += "<ArticleCount>"+contentArr.length+"</ArticleCount>";
            xmlContent += "<Articles>";
            contentArr.map(function(item,index){
                xmlContent+="<item>";
                xmlContent+="<Title><![CDATA["+ item.Title +"]]></Title>";
                xmlContent+="<Description><![CDATA["+ item.Description +"]]></Description>";
                xmlContent+="<PicUrl><![CDATA["+ item.PicUrl +"]]></PicUrl>";
                xmlContent+="<Url><![CDATA["+ item.Url +"]]></Url>";
                xmlContent+="</item>";
            });
            xmlContent += "</Articles></xml>";
        return xmlContent;
    }
}

let server = app.listen('8888',function(){
    let port = server.address().port;
    console.log("port === " + port);
})

java返回时需注意设置编码utf-8,不然中文乱码

 @RequestMapping(value = "/",produces = "text/xml;charset=utf-8")