可以通过以下步骤完成:
JsonConvert.DeserializeObject
方法将JSON文件解析为vb.net中的对象。以下是一个示例代码,演示如何使用vb.net将JSON文件导入到SQL Server数据库:
Imports System.Data.SqlClient
Imports Newtonsoft.Json
' 解析JSON文件
Dim json As String = File.ReadAllText("path/to/json/file.json")
Dim data As List(Of JObject) = JsonConvert.DeserializeObject(Of List(Of JObject))(json)
' 连接到SQL Server数据库
Dim connectionString As String = "Data Source=server_name;Initial Catalog=database_name;User ID=username;Password=password"
Using connection As New SqlConnection(connectionString)
connection.Open()
' 创建数据库表(假设表名为JsonData,包含id和data两列)
Dim createTableQuery As String = "CREATE TABLE JsonData (id INT PRIMARY KEY, data NVARCHAR(MAX))"
Using createTableCommand As New SqlCommand(createTableQuery, connection)
createTableCommand.ExecuteNonQuery()
End Using
' 插入数据
Dim insertQuery As String = "INSERT INTO JsonData (id, data) VALUES (@id, @data)"
For Each item As JObject In data
Dim id As Integer = item("id")
Dim jsonData As String = item.ToString()
Using insertCommand As New SqlCommand(insertQuery, connection)
insertCommand.Parameters.AddWithValue("@id", id)
insertCommand.Parameters.AddWithValue("@data", jsonData)
insertCommand.ExecuteNonQuery()
End Using
Next
' 关闭数据库连接
connection.Close()
End Using
请注意,以上代码仅为示例,实际应用中可能需要根据具体情况进行适当修改和优化。另外,对于更复杂的JSON结构,可能需要进一步处理和转换数据。
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