我准备使用Timeglider创建时间轴。一个要求是数据必须是JSON格式。对我来说，一个要求是需要客户端，因为我无法访问服务器或中央管理员。
当我尝试http://webname/_vti_bin/ListData.svc/listname时，我收到了访问权限的错误，但是当我发出http://webname/subsite/_vti_bin/ListData.svc/listname时，我没有拉数据的问题。
我的情况是列表在TLD上。我试着关注这篇文章How to retrieve a json object from a sharepoint list，但它与SP 2007有关。
答案 0 :(得分：1)
要在SharePoint 2007,2010等中实现纯JSON支持，请查看此项目http://camelotjson.codeplex.com/。它要求将商业产品Camelot .NET Connector安装在服务器上。
如果您不喜欢商业广告，可以使用sp.js库，这是我写的一个小例子，尽情享受！
// Object to handle some list magic
var ListMagic = function () {
/* Private variables */
var that = this;
var clientContext = SP.ClientContext.get_current();
var web = clientContext.get_web();
var lists = web.get_lists();
/**
* Method to iterate all lists
*/
that.getLists = function () {
clientContext.load(lists);
clientContext.executeQueryAsync(execute, getFailed);
function execute() {
var listEnumerator = lists.getEnumerator();
while (listEnumerator.moveNext()) {
var l = listEnumerator.get_current();
// TODO! Replace console.log with actual routine
console.log(l.get_title());
}
}
function getFailed() {
// TODO! Implement fail management
console.log('Failed.');
}
};
/**
* Method to iterate all fields of a list
*/
that.getFields = function (listName) {
// Load list by listName, if not stated try to load the current list
var loadedList = typeof listName === 'undefined' ? lists.getById(SP.ListOperation.Selection.getSelectedList()) : that.lists.getByTitle(listName);
var fieldCollection = loadedList.get_fields();
clientContext.load(fieldCollection);
clientContext.executeQueryAsync(execute, getFailed);
function execute() {
var fields = fieldCollection.getEnumerator();
while (fields.moveNext()) {
var oField = fields.get_current();
// TODO! Replace console.log with actual routine
var listInfo = 'Field Title: ' + oField.get_title() + ', Field Name: ' + oField.get_internalName();
console.log(listInfo);
}
}
function getFailed() {
// TODO! Implement fail management
console.log('Failed.');
}
};
/**
* Method to get a specific listitem
*/
that.getListItem = function (itemId) {
var loadedList = lists.getById(SP.ListOperation.Selection.getSelectedList());
var spListItem = loadedList.getItemById(itemId);
clientContext.load(spListItem);
clientContext.executeQueryAsync(execute, getFailed);
function execute() {
// TODO! Replace console.log with actual routine
//spListItem.get_fieldValues()
console.log(spListItem.get_fieldValues()["Title"]);
}
function getFailed() {
// TODO! Implement fail management
console.log('Failed.');
}
};
/**
* Method to fake an init (optional)
*/
that.init = function () {
// Run any init functionality here
// I.e
that.getFields("Tasks");
};
return that;
};
// In case of no jquery use window.onload instead
$(document).ready(function () {
ExecuteOrDelayUntilScriptLoaded(function () {
var sp = new ListMagic();
sp.init();
}, 'sp.js');
});
答案 1 :(得分：0)
就个人而言，我制作了HttpHandlers。我将它们安装在SharePoint isapi文件夹和GAC中，我可以像调用owssvr.dll一样调用它们。 http://servername/_vti_bin/myhttphandelr.dll
传递querystring变量或从jquery ajax调用它。您可以使用httpcontext并从中创建spcontext，并可以从SharePoint中的当前位置访问各种信息。然后你可以javascriptserialize对象并将它们作为JSON传递。寻找一些代码......坚持......我不能把所有的代码，但这应该让你接近。我使用它来向上下文菜单添加一个子菜单，允许用户删除或重命名文件，如果他们将文件上传到库并且版本为1.0并从库中收集文件并使用所选文件创建一个eml文件（s）作为附件。我们通常不会为用户提供删除权限。现在，您现在可以创建一个只包含SharePoint所需信息的类，并将其作为JSON传递。我对此唯一的挫折是，如果对dll进行任何更改，则需要iisreset。
无论如何，我每天晚上都会安排一个iisreset来保持它的新鲜感并且不受记忆臃肿的影响。我第二天来了，我的变化就在那里。很酷的是，spcontext包含有关SharePoint调用位置的当前位置的信息。所以，http://servername/_vti_bin/myhttphandelr.dll vs http://servername/subsite/library/_vti_bin/myhttphandelr.dll
我可以补充一下。不要尝试序列化SharePoint对象。一个是巨大而复杂的物体。二，我不认为它们标记为可序列化。只需创建自己的类，并使用SharePoint对象中所需的值填充它。
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices.ComTypes;
using System.Web;
using System.Web.Script.Serialization;
using ADODB;
using interop.cdosys;
using Microsoft.SharePoint;
namespace owssvr2
{
public class OWSsvr2 : IHttpHandler, System.Web.SessionState.IRequiresSessionState
{
private string cmd;
ctx ctx = new ctx();
private string currentuser;
private SPContext SPcontext;
private HttpContext cntx;
public bool IsReusable
{
get { return false; }
}
public void ProcessRequest(HttpContext context)
{
SPcontext = SPContext.GetContext(context); <-- Gets spcontext from the httpcontext
cntx = context;
ctx = GetData(context.Request); <-- I parse some information from the request to use in my app
cmd = ctx.Cmd;
ctx.User = context.User.Identity.Name;
currentuser = context.User.Identity.Name;
switch (cmd)
{
case "Delete":
Delete();
context.Response.Redirect(ctx.NextUsing);
break;
case "HasRights":
HasRights();
JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
string serEmployee = javaScriptSerializer.Serialize(ctx);
context.Response.Write(serEmployee);
context.Response.ContentType = "application/json; charset=utf-8";
break;
case "Rename":
Rename(context);
//context.Response.Redirect(context.Request["NextUsing"]);
break;
case "SendSingleFile":
try
{
context.Response.Clear();
context.Response.ClearHeaders();
context.Response.BufferOutput = true;
ADODB.Stream stream = SendSingleFile(context.Request["URL"]);
stream.Type = StreamTypeEnum.adTypeBinary;
stream.Position = 0;
context.Response.ContentType = "application/octet-stream";
context.Response.AddHeader("content-disposition", "attachment;filename=Email.eml");
IStream iStream = (IStream)stream;
byte[] byteArray = new byte[stream.Size];
IntPtr ptrCharsRead = IntPtr.Zero;
iStream.Read(byteArray, stream.Size, ptrCharsRead);
context.Response.BinaryWrite(byteArray);
context.Response.End();
}
catch(Exception ex) {context.Response.Write(ex.Message.ToString()); }
break;
case "SendMultiFile":
try
{
//SendMultiFile(context.Request["IDs"]);
context.Response.Clear();
context.Response.ClearHeaders();
context.Response.BufferOutput = true;
ADODB.Stream stream = SendMultiFile(context.Request["IDs"]);
stream.Type = StreamTypeEnum.adTypeBinary;
stream.Position = 0;
context.Response.ContentType = "application/octet-stream";
context.Response.AddHeader("content-disposition", "attachment;filename=Email.eml");
IStream iStream = (IStream)stream;
byte[] byteArray = new byte[stream.Size];
IntPtr ptrCharsRead = IntPtr.Zero;
iStream.Read(byteArray, stream.Size, ptrCharsRead);
context.Response.BinaryWrite(byteArray);
context.Response.End();
}
catch(Exception ex) {context.Response.Write("There was an error getting the files. </br>" + ex.Message.ToString()); }
break;
case "FileInfo":
JavaScriptSerializer javaScriptSerializer1 = new JavaScriptSerializer();
string serEmployee1 = javaScriptSerializer1.Serialize(FileInfo(context));
context.Response.Write(serEmployee1);
context.Response.ContentType = "application/json; charset=utf-8";
break;
case "UsersInGroups":
UsersInGroups ug = new UsersInGroups(context, context.Request["job"],context.Request["groups"]);
break;
}
}