【基于node.js+express的web开发备忘】--技术分享（TShare）站点-资源模块

/*跳转至资源界面*/
router.get('/resource', function(req, res) {
if(!req.session.user) {
return res.redirect('/');
}
var msg = null;
Resource.query({}, function (err, docs) {
if(err) {
console.log(err);
}
res.render('index', { title: '资源',
toUrl: '/resource',
toBodyUrl: '/all',
user: req.session.user,
items: docs,
msg: msg});
});
});

/*下载资源*/
router.post('/doDownLoad', function(req, res) {
if(!req.session.user) {
return res.redirect('/');
}
//console.log("req.body=="+JSON.stringify(req.body));
//console.log("req.session.user=="+JSON.stringify(req.session.user))
var filePath = Util.trim(req.body.filePath);

var downLoadResource = new DownResource({
//下载者
downLoadName: req.session.user.userName,
//下载者昵称
downLoadNickName: req.session.user.nickName,
//下载时间
downloadTime: Util.getToday('yyyy-MM-dd HH:mm:ss'),
//资源名称
resName: req.body.fileName,
//资源描述
resDesc: req.body.fileDesc,
//资源路径
resPath: filePath,
//资源格式
resStyle: req.body.fileStyle,
//上传时间
uploadTime: req.body.uploadTime,
//上传者
userName: req.body.userName,
//上传者昵称
nickName: req.body.nickName
});
//console.log("downLoadResource=="+JSON.stringify(downLoadResource));
downLoadResource.save(function(err) {
if(err) {
console.log(err);
}
});

if(filePath != '') {
var fileName = encodeURI(filePath.substr(filePath.lastIndexOf("/")+1));
fs.readFile("."+filePath, "binary", function(err, file){
if(err){
res.write(err+"\n");
res.end();
}else{
res.writeHead(200, {"Content-Type": "application/octet-stream;charset=UTF-8", "Content-Disposition": "attachment; filename="+fileName});
res.write(file, "binary");
res.end();
}
});
} else {
res.redirect('/resource');
}
});

/*跳转至资源界面*/
router.get('/resource/upload', function(req, res) {
if(!req.session.user) {
return res.redirect('/');
}
var msg = null;
if(req.param('res_msg') != undefined) {
msg = req.param('res_msg');
}
Resource.query({userName:req.session.user.userName}, function (err, docs) {
if(err) {
console.log(err);
}

res.render('index', { title: '资源',
toUrl: '/resource',
toBodyUrl: '/upload',
user: req.session.user,
items: docs,
msg: msg});
});
});

/*上传资源*/
router.post('/doUpload', function(req, res) {
if(!req.session.user) {
return res.redirect('/');
}
var resObj = req.files.uploadResource;
var resName = resObj.name;
if(resName == '') {
//未添加资源！
return res.redirect('/resource/upload?res_msg=0');
}
/*
//文件大小1M
if(fileObj.size > 1048576) {
//上传图片太大！
return res.redirect('/resource/upload?res_msg=1');
}
*/
var resStyle = resName.substr(resName.indexOf(".")+1);
var resourceName = Util.trim(req.body.resourceName);
if(resourceName == '') {
resourceName = resName.substr(0, resName.indexOf("."));
}
var resourceDesc = Util.trim(req.body.resourceDesc);
if(resourceDesc == '') {
resourceDesc = '--';
}

//-------------------------文件上传处理-------------------------------------
fs.rename(resObj.path, "./upload/"+resourceName+"."+resStyle, function(err) {
if(err){
console.log(err);
//上传过程中出错！
return res.redirect('/resource/upload?res_msg=2');
}

var resource = new Resource({
//资源唯一编码
qno: Util.sequenceCD(),
//资源名称
resName: resourceName,
//资源描述
resDesc: resourceDesc,
//资源路径
resPath: '/upload/'+resourceName+"."+resStyle,
//资源格式
resStyle: resStyle,
//上传时间
uploadTime: Util.getToday('yyyy-MM-dd HH:mm:ss'),
//上传者
userName: req.session.user.userName,
//上传者昵称
nickName: req.session.user.nickName
});
//上传文件信息
resource.save(resource, function(err, user) {
if(err) {
console.log(err);
//上传文件信息保存过程中出错！
return res.redirect('/resource/upload?res_msg=error');
}
});
res.redirect('/resource/upload');
});
//--------------------------------------------------------------
});

/*跳转至资源界面*/
router.get('/resource/download', function(req, res) {
if(!req.session.user) {
return res.redirect('/');
}
var msg = null;
if(req.param('res_msg') != undefined) {
msg = req.param('res_msg');
}
DownResource.query({downLoadName:req.session.user.userName}, function (err, docs) {
if(err) {
console.log(err);
}

res.render('index', { title: '资源',
toUrl: '/resource',
toBodyUrl: '/download',
user: req.session.user,
items: docs,
msg: msg});
});
});