将JSON字符串保存到SQL Server数据库的问题

Question

我的Angular Web应用程序当前使用HTML5 localStorage对象将JSON对象序列化为/从本地存储器反序列化JSON对象。我们现在试图保存并从SQL Server表中检索这些相同的JSON对象。

但我有困难，因为我尝试使用以下SQL UPDATE保存JSON字符串：

UPDATE [rz37883_SQLServer].[dbo].[RAGEDashboard] 
SET 
    image = '{"widgets":[{"title":"Bar Chart","name":"chart_bar","style":{},"size":{"width":"50%","height":320},"dataModelOptions":{"title":{"text":"Bar Chart","position":"bottom"},"legend":{"visible":true,"position":"top"},"seriesDefaults":{"type":"bar","stack":false},"series":[{"field":"field1","name":"MTM"}],"dataSource":{"data":[{"field1":236151654.592439},{"field1":103612357.347808},{"field1":267066579.129913},{"field1":582355005.154486},{"field1":-9422699.958631}],"table":null},"valueAxis":{"labels":{"format":"{0:c}","rotation":-30},"line":{"visible":false},"axisCrossingValue":0},"categoryAxis":{"categories":["London","New York","Dubai","Paris","Stockholm"],"majorGridLines":{"visible":false},"labels":{"rotation":0,"margin":20}},"tooltip":{"visible":true,"template":"#= series.name #: #= kendo.format('{0:C0}', value) #"},"dimensions":[{"dimension":"BookingLocation","hierarchy":false,"id":0}],"riskMeasures":[{"name":"MTM","kri_group":"[MTM:MTM]","cube_vector":"MTM:MTM","aggreg_formula":"SUM(MTM:MTM)","id":0}]},"initImage":"images2/bar_chart.png","gadgetConfigured":true}]}' 
WHERE [RAGEDashboardConfig_userid] = 'bobmazzo1234' 
    AND id = 1441288790 

SQL Server错误消息是：

消息102，15级，状态1，第3行
'{'附近的语法不正确。

在角度指令代码中，item对象当前被保存到localStorage，如下所示。

save: function (widgets) { 
    //'widgets' are mapped to the 'serialized' var using _.map() 
    item = JSON.stringify(item); 
    this.storage.setItem(this.id, item); 
} 

我现在连接一个http请求，它将使用MS WebAPI调用到一个c＃API层。

这里的问题是，我只是试图手动更新SQL Server表，所以我可以测试检索功能。

Answer 1

我认为这是因为你在字符串中有几个单引号。你必须逃避它们，具有讽刺意味的是，单引号就是逃避角色。

这里是轻微的修改我提出：

原文：kendo.format('{0:C0}', value)

修改：kendo.format(''{0:C0}'', value)

试着改变你的字符串，这一点，看看它是否修复该问题：

UPDATE [rz37883_SQLServer].[dbo].[RAGEDashboard] 
    SET 
     image = 
'{"widgets":[{"title":"Bar Chart","name":"chart_bar","style":{},"size":{"width":"50%","height":320},"dataModelOptions":{"title":{"text":"Bar Chart","position":"bottom"},"legend":{"visible":true,"position":"top"},"seriesDefaults":{"type":"bar","stack":false},"series":[{"field":"field1","name":"MTM"}],"dataSource":{"data":[{"field1":236151654.592439},{"field1":103612357.347808},{"field1":267066579.129913},{"field1":582355005.154486},{"field1":-9422699.958631}],"table":null},"valueAxis":{"labels":{"format":"{0:c}","rotation":-30},"line":{"visible":false},"axisCrossingValue":0},"categoryAxis":{"categories":["London","New York","Dubai","Paris","Stockholm"],"majorGridLines":{"visible":false},"labels":{"rotation":0,"margin":20}},"tooltip":{"visible":true,"template":"#= series.name #: #= kendo.format(''{0:C0}'', value) #"},"dimensions":[{"dimension":"BookingLocation","hierarchy":false,"id":0}],"riskMeasures":[{"name":"MTM","kri_group":"[MTM:MTM]","cube_vector":"MTM:MTM","aggreg_formula":"SUM(MTM:MTM)","id":0}]},"initImage":"images2/bar_chart.png","gadgetConfigured":true}]}' 
WHERE [RAGEDashboardConfig_userid]='bobmazzo1234' and id = 1441288790