如何在SharePoint中使用jquery获取Web对象?

我认为您可以这样设置客户端上下文的URL:

var yourUrl = '/sites/yourUrl';
var clientContext;
var web;

// Make sure the SharePoint script file 'sp.js' is loaded before your
// code runs.
SP.SOD.executeFunc('sp.js', 'SP.ClientContext', sharePointReady);

// Create an instance of the current context.
function sharePointReady() {
    clientContext = new SP.ClientContext(yourUrl);
    web = clientContext.get_web();

    clientContext.load(web);
    clientContext.executeQueryAsync(onRequestSucceeded, onRequestFailed);
}
function onRequestSucceeded() {
    alert(web.get_url());
}
function onRequestFailed(sender, args) {
    alert('Error: ' + args.get_message());
}

也许这对你有帮助。