获取HTTP POST表单提交数据的Boundary

getBoundary.js

function getBoundary(req) {
    if (req && req.headers) {
        var content_type = req.headers['content-type'].split(';');
        if (content_type.length > 1) {
            var raw_boundary = content_type.pop().split('=');
            var boundary = raw_boundary[1];
            return boundary;
        }
    }
    else {
        throw new Error("参数错误： 参数必须为有效的Http.request");
    }
}

module.exports = getBoundary;