• SharePoint 2013 Odata 常用实例和基本操作


       

           

    本文讲述SharePoint 2013 Odata 常用实例和基本操作。

    Open Data Protocol (OData)是一个基于Rest风格的数据服务,同过这个服务可以使用同一的URI定位到具体的资源(文件和记录等),从而使得这些资源可以使用HTTP请求进行增删改查,它定义了一系列的规则,使得资源更容易被定位和操作。

    首先看一下OData定义的URI结构:

    那么相对SharePoint 2013,一个简单的实例为:

    http://moss2013site/_api/web/lists/GetByTitle('News')/items?$select=Title,Body,ID&$top=10&$orderby=Created desc

    这个URI表示查询News 列表里面最新的10条记录,查询的字段为Title,Body,ID

    http://moss2013site/_api/web 是service root URI

    /lists/GetByTitle('News')/items 是resource path

    ?$select=Title,Body,ID&$top=10&$orderby=Created desc 是Query option, $select=Title,Body,ID表示选择Title,Body,ID三个字段,$top=10表示选择前10条记录,$orderby=Created desc表示按创建时间倒序排列

    service root URI 和 resource path相对简单和容易理解,这里我们用一张来自微软网站http://msdn.microsoft.com/en-us/library/office/apps/fp142385.aspx的图来说明下Query option(注意降序排列不时dsc,应该是desc,如果你使用dsc将会报错),目前SharePoint 2013 的Odata service支持以下查询选项:

    SharePoint 2013 的Odata service的常用URI实例:

    URI实例 解释
    _api/web/title 返回web title 
    _api/web/lists(guid'<list id>') 返回列表
    _api/web/lists/getByTitle('Announcements')/fields 返回列表的所有字段
    _api/web/lists/getByTitle('Task')/items 返回Tas列表的所有item
    _api/web/siteusers 返回该站点所有用户
    _api/web/sitegroups 返回该站点所有用户组
    _api/web/sitegroups(3)/users 返回该站点所有在id为3的用户组的用户
    _api/web/GetFolderByServerRelativeUrl('/Shared Documents') 返回Shared Documents文档库根目录
    _api/web/GetFolderByServerRelativeUrl('/Plans')/Files('a.txt')/$value 返回Plans文档库根目录下的a.txt文件

    带Query option的实例:

    查询选项 作用
    $select 指定返回字段(列)
    $filter 指定过滤条件
    $expand 用于关联列表,指定返回关联字段(列)
    $top 指定返回前N条记录
    $skip 指定返回结果跳过前N行记录
    $orderby 指定按某个字段排序
    URI实例 解释
    _api/web/lists/getByTitle(
      'Books')/items?$select=Title,PublishedBy/Name&$expand=PublishedBy
    前提book里面有个
    PublishedBy 的字段关联到Publisher 列表
    
    
    返回Books列表的Title和关联
    Publisher 列表项目的Name
    _api/web/lists/getByTitle('Books')/items?$top=10&$skip=2
    返回Books列表的3~10项纪录
    _api/web/lists/getByTitle('Books')/items?$skip=2&$top=10
    返回Books列表的3~12项纪录
    _api/web/lists/getByTitle('Books')/items?$orderby=ID desc&$top=2
    返回Books列表的最后两条记录
    _api/web/lists/getByTitle(
      'Books')/items?$select=Title&$filter=Author eq 'Mark Twain'&$top=2
    返回Author 等于
     'Mark Twain'的头两条记录
    _api/web/lists/getByTitle('Books')/items?$orderby=Title asc
    返回Books列表的所有记录并按Title升序排列
    _api/web/lists/getByTitle('Books')/items?$select=Author,Title,ISBN
    返回Books列表下记录(只返回列
    Author,Title,ISBN

    使用JQuery + Odata实现增删改查

    按Json格式查询:

    1. function onGetCustomer(customerId) {  
    2.    
    3.   // begin work to call across network  
    4.   var requestUri = _spPageContextInfo.webAbsoluteUrl +  
    5.                 "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";  
    6.    
    7.   // execute AJAX request  
    8.   $.ajax({  
    9.     url: requestUri,  
    10.     type: "GET",  
    11.     headers: { "ACCEPT": "application/json;odata=verbose" },  
    12.     success: function(data){  
    13.       alert(data.d.FirstName);  
    14.     },  
    15.     error:  function(){  
    16.       alert("Failed to get customer");  
    17.     }  
    18.   });  
    19. }  
    function onGetCustomer(customerId) {
     
      // begin work to call across network
      var requestUri = _spPageContextInfo.webAbsoluteUrl +
                    "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";
     
      // execute AJAX request
      $.ajax({
        url: requestUri,
        type: "GET",
        headers: { "ACCEPT": "application/json;odata=verbose" },
        success: function(data){
          alert(data.d.FirstName);
        },
        error:  function(){
          alert("Failed to get customer");
        }
      });
    }

    添加:

    1. function onAddCustomer() {  
    2.   
    3.     var requestUri = _spPageContextInfo.webAbsoluteUrl +  
    4.               "/_api/Web/Lists/getByTitle('Customers')/items/";  
    5.   
    6.     var requestHeaders = {  
    7.       "ACCEPT": "application/json;odata=verbose",  
    8.       "X-RequestDigest": $("#__REQUESTDIGEST").val(),  
    9.     }  
    10.   
    11.     var customerData = {  
    12.       __metadata: { "type": "SP.Data.CustomersListItem" },  
    13.       FirstName: "Paul"  
    14.     };  
    15.   
    16.     requestBody = JSON.stringify(customerData);  
    17.   
    18.     $.ajax({  
    19.       url: requestUri,  
    20.       type: "Post",  
    21.       contentType: "application/json;odata=verbose",  
    22.       headers: requestHeaders,  
    23.       data: requestBody,  
    24.       success: function(){  
    25.         alert("Created customer");  
    26.       },  
    27.       error: function(){  
    28.         alert("Failed to create customer");  
    29.       }  
    30.     });  
    31.   }  
    32. }  
    function onAddCustomer() {
    
        var requestUri = _spPageContextInfo.webAbsoluteUrl +
                  "/_api/Web/Lists/getByTitle('Customers')/items/";
    
        var requestHeaders = {
          "ACCEPT": "application/json;odata=verbose",
          "X-RequestDigest": $("#__REQUESTDIGEST").val(),
        }
    
        var customerData = {
          __metadata: { "type": "SP.Data.CustomersListItem" },
          FirstName: "Paul"
        };
    
        requestBody = JSON.stringify(customerData);
    
        $.ajax({
          url: requestUri,
          type: "Post",
          contentType: "application/json;odata=verbose",
          headers: requestHeaders,
          data: requestBody,
          success: function(){
            alert("Created customer");
          },
          error: function(){
            alert("Failed to create customer");
          }
        });
      }
    }

    删除:

    1. function onDeleteCustomer(customerId) {  
    2.   
    3.   var requestUri = _spPageContextInfo.webAbsoluteUrl +  
    4.                 "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";  
    5.   
    6.   var requestHeaders = {  
    7.     "ACCEPT": "application/json;odata=verbose",  
    8.     "X-RequestDigest": $("#__REQUESTDIGEST").val(),  
    9.     "If-Match": "*" // delete the item even if another user has updated it since we last fetched it  
    10.   }  
    11.   
    12.   $.ajax({  
    13.     url: requestUri,  
    14.     type: "DELETE",  
    15.     contentType: "application/json;odata=verbose",  
    16.     headers: requestHeaders,  
    17.     success: function(){  
    18.       alert("Deleted customer");  
    19.     },  
    20.     error: function(){  
    21.       alert("Failed to delete customer");  
    22.     }  
    23.   });  
    24.   
    25. }  
    function onDeleteCustomer(customerId) {
    
      var requestUri = _spPageContextInfo.webAbsoluteUrl +
                    "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";
    
      var requestHeaders = {
        "ACCEPT": "application/json;odata=verbose",
        "X-RequestDigest": $("#__REQUESTDIGEST").val(),
        "If-Match": "*" // delete the item even if another user has updated it since we last fetched it
      }
    
      $.ajax({
        url: requestUri,
        type: "DELETE",
        contentType: "application/json;odata=verbose",
        headers: requestHeaders,
        success: function(){
          alert("Deleted customer");
        },
        error: function(){
          alert("Failed to delete customer");
        }
      });
    
    }

    修改:

    1. function onUpdateCustomer(customerId, firstName) {  
    2.   // first we need to fetch the eTag to ensure we have the most recent value for it  
    3.   var requestUri = _spPageContextInfo.webAbsoluteUrl +  
    4.                 "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";  
    5.    
    6.   // execute AJAX request  
    7.   $.ajax({  
    8.     url: requestUri,  
    9.     type: "GET",  
    10.     headers: { "ACCEPT": "application/json;odata=verbose" },  
    11.     success: function(data){  
    12.       // got the eTag  
    13.       var etag = data.d.etag;  
    14.     
    15.       var requestUri = _spPageContextInfo.webAbsoluteUrl +  
    16.                 "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";  
    17.         
    18.       // set the MERGE verb so we only need to provide the update delta  
    19.       var requestHeaders = {  
    20.         "ACCEPT": "application/json;odata=verbose",  
    21.         "X-RequestDigest": $("#__REQUESTDIGEST").val(),  
    22.         "X-HTTP-Method": "MERGE",  
    23.         "If-Match": etag  
    24.       }  
    25.     
    26.       var customerData = {  
    27.         __metadata: { "type": "SP.Data.CustomersListItem" },  
    28.         FirstName: firstName  
    29.       };  
    30.     
    31.       requestBody = JSON.stringify(customerData);  
    32.     
    33.       $.ajax({  
    34.         url: requestUri,  
    35.         type: "POST",  
    36.         contentType: "application/json;odata=verbose",  
    37.         headers: requestHeaders,  
    38.         data: requestBody,  
    39.         success: function(data){  
    40.           alert("Updated customer");  
    41.         },  
    42.         error: function(data){  
    43.           alert("Failed to update customer");  
    44.         }  
    45.       });  
    46.     },  
    47.     error:  function(data){  
    48.       alert("Failed to get customer eTag");  
    49.     }  
    50.   });  
    51. }  
    function onUpdateCustomer(customerId, firstName) {
      // first we need to fetch the eTag to ensure we have the most recent value for it
      var requestUri = _spPageContextInfo.webAbsoluteUrl +
                    "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";
     
      // execute AJAX request
      $.ajax({
        url: requestUri,
        type: "GET",
        headers: { "ACCEPT": "application/json;odata=verbose" },
        success: function(data){
          // got the eTag
          var etag = data.d.etag;
      
          var requestUri = _spPageContextInfo.webAbsoluteUrl +
                    "/_api/Web/Lists/getByTitle('Customers')/items(" + customerId + ")";
          
          // set the MERGE verb so we only need to provide the update delta
          var requestHeaders = {
            "ACCEPT": "application/json;odata=verbose",
            "X-RequestDigest": $("#__REQUESTDIGEST").val(),
            "X-HTTP-Method": "MERGE",
            "If-Match": etag
          }
      
          var customerData = {
            __metadata: { "type": "SP.Data.CustomersListItem" },
            FirstName: firstName
          };
      
          requestBody = JSON.stringify(customerData);
      
          $.ajax({
            url: requestUri,
            type: "POST",
            contentType: "application/json;odata=verbose",
            headers: requestHeaders,
            data: requestBody,
            success: function(data){
              alert("Updated customer");
            },
            error: function(data){
              alert("Failed to update customer");
            }
          });
        },
        error:  function(data){
          alert("Failed to get customer eTag");
        }
      });
    }
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  • 原文地址:https://www.cnblogs.com/ningang/p/4299103.html
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