Sharepoint 2013托管应用程序执行javascript在所有页面加载

你可以像@AlexCode建议的那样使用自定义动作脚本链接注入javascript，但是应用程序将需要web - full control权限。我不记得我在研究外接程序开发时从哪里改编了这些代码。此外，这仅适用于POC，您可能应该在将其用于实时环境之前使其更健壮。

(function(undefined) {
    "use strict";
    var actions, web, context, hostContext, actionDescription;
    console.log('running function');
    // getQueryStringParameter: method to retrieve query string parameter values
    var getQueryStringParameter = function(param) {
            var params = document.URL.split('?')[1].split('&');
            var length = params.length;
            for (var i = 0; i < length; i = i + 1) {
                var singleParam = params[i].split('=');
                if (singleParam[0] == param) {
                    return singleParam[1];
                }
            }
        };
    // inject: method to return as a string the js that will be ran by the custom action
    var inject = function() {
            debugger;
            var scriptToRun;
            scriptToRun += '(function (){' +
                    'var elem = document.getElementsByTagName("head")[0];' +                    
                    'var script = document.createElement("script");' +
                    'script.appendChild(document.createTextNode(alert("hello world")));' +                  
                    'elem.appendChild(script);' +
                '}());';
            return scriptToRun;
        };
    var success = function() {
        alert('Done');
    }
    var fail = function() {
        alert('Failed');
    }
    // unprovision: removes the custom action and the JavaScript file
    var unprovision = function() {
            context = SP.ClientContext.get_current();
            hostContext = new SP.AppContextSite(context, decodeURIComponent(getQueryStringParameter('SPHostUrl')));
            // load the custom actions from the host web
            actions = hostContext.get_web().get_userCustomActions();
            context.load(actions);
            web = hostContext.get_web();
            context.load(web);
            context.executeQueryAsync(unprovisionEx, fail);
        };
    // unprovisionEx: method to remove the custom action
    var unprovisionEx = function() {
            var enumerator = actions.getEnumerator();
            var removeThese = [];
            // find the custom action
            while (enumerator.moveNext()) {
                var action = enumerator.get_current();
                if (action.get_description() == actionDescription && action.get_location() == 'ScriptLink') {
                    // add it to a temporary array (we cannot modify an enumerator while enumerating)
                    removeThese.push(action);
                }
            }
            // do the actual removal of the custom action
            var length = removeThese.length;
            for (var i = 0; i < length; i++) {
                removeThese[i].deleteObject();
                delete removeThese[i];
            }
            context.executeQueryAsync(success, fail);
        };

    // provisionScriptLink: method that adds the custom action
    var provisionScriptLink = function() {
            var enumerator = actions.getEnumerator();
            var removeThese = [];
            // check if the custom action already exists, if it does then remove it before adding the new one
            while (enumerator.moveNext()) {
                var action = enumerator.get_current();
                if (action.get_description() == actionDescription && action.get_location() == 'ScriptLink') {
                    removeThese.push(action);
                }
            }
            var length = removeThese.length;
            for (var i = 0; i < length; i++) {
                removeThese[i].deleteObject();
                delete removeThese[i];
            }
            // create the custom action
            var newAction = actions.add();
            // the 'description' is what we'll use to uniquely identify our custom action
            newAction.set_description(actionDescription);
            newAction.set_location('ScriptLink');
            newAction.set_scriptBlock(inject());
            newAction.update();
            context.executeQueryAsync(success, fail);
        };
    // provision: starts with uploading the JavaScript file to the host we, once done it will continue with the provisionScriptLink() method
    var provision = function() {
            context = SP.ClientContext.get_current();
            hostContext = new SP.AppContextSite(context, decodeURIComponent(getQueryStringParameter('SPHostUrl')));
            // load the custom actions from the host web
            actions = hostContext.get_web().get_userCustomActions();
            context.load(actions);
            web = hostContext.get_web();
            context.load(web);
            context.executeQueryAsync(provisionScriptLink, fail);
        };

    document.getElementById("add").onclick = provision;
}());

违约。apsx内容

<%-- The following 4 lines are ASP.NET directives needed when using SharePoint components --%>
<%@ Page Inherits="Microsoft.SharePoint.WebPartPages.WebPartPage, Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" MasterPageFile="~masterurl/default.master" Language="C#" %>
<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%-- The markup and script in the following Content element will be placed in the <head> of the page --%>
<asp:Content ContentPlaceHolderID="PlaceHolderAdditionalPageHead" runat="server">
    <script type="text/javascript" src="/_layouts/15/sp.runtime.js"></script>
    <script type="text/javascript" src="/_layouts/15/sp.js"></script>
    <!-- Add your CSS styles to the following file -->
    <link rel="Stylesheet" type="text/css" href="../Content/App.css" />
</asp:Content>
<%-- The markup in the following Content element will be placed in the TitleArea of the page --%>
<asp:Content ContentPlaceHolderID="PlaceHolderPageTitleInTitleArea" runat="server">
    Page Title
</asp:Content>
<%-- The markup and script in the following Content element will be placed in the <body> of the page --%>
<asp:Content ContentPlaceHolderID="PlaceHolderMain" runat="server">
    <div>
       <button type="button" value="add" name="add" id="add">Add</button>
    </div>
</asp:Content>
<asp:Content ContentPlaceHolderID="PlaceHolderUtilityContent" runat="server">
    <!-- Add your JavaScript to the following file -->
    <script type="text/javascript" src="../Scripts/App.js"></script>
</asp:Content>

您可以通过javascript从app站点为主机站点提供自定义母版页面。无论如何，主机站点必须使用新的母版页。

您可以查看这篇文章了解更多信息