SharePoint Online 通过API获取版本

　　前言

　　最近，接到一个需求，用户希望通过自定义代码，获取SharePoint文档库中文档的版本，好的，安排！

　　正文

　　1.获取版本的REST API，通过Get方法进行调用，如下图：

$.ajax
({
    url:"https://aiacom.sharepoint.com/sites/TEST/_api/web/GetFileByServerRelativeUrl('/sites/TEST/Shared Documents/TestForVersion.docx')/versions",
    type: "GET",
    headers:
    {
       "Accept": "application/json;odata=verbose"
    },
    success: function (data, status, xhr) {
    console.log(data);
    var dataresults = data.d.results;
    for (var i = 0; i < dataresults.length; i++) {
        console.log("Version: " + dataresults[i]["VersionLabel"] + ", Url: " + dataresults[i]["Url"]);
    }
    },
    error: function (xhr, status, error) {
        console.log("Failed");
    }
});

　　2.恢复文档的对应版本为主版本，如下图：

$.ajax
({
    url:"https://aiacom.sharepoint.com/sites/TEST/_api/web/GetFileByServerRelativeUrl('/sites/TEST/Shared Documents/TestForVersion.docx')/versions/restorebylabel(versionlabel='1.0')",
    type: "POST",
    headers:
    {
       "Accept": "application/json;odata=verbose",
       "Content-Type": "application/json;odata=verbose",
       "IF-MATCH": "*",
       "X-HTTP-Method": "PATCH",
       "X-RequestDigest": $("#__REQUESTDIGEST").val()
    },
    success: function (data, status, xhr) {
        console.log("success");
    },
    error: function (xhr, status, error) {
        console.log("Failed");
    }
});
}

　　3.调用API返回的结果