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使用JavaScriptSerializer生成和解析json：
设计界面：
其中button1和button3是生成，button2和button4是解析。
项目目标框架选择.net Framework 4.5，添加对system.web.extensions的引用，同时代码中添加：
Imports System.Web.Script.Serialization
当button1按下时，生成json格式的字符串：
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim newbooks As New Books
Dim newBook As New BookStore
Dim newSingleBook As New Book
newSingleBook.Title = "这是测试"
newSingleBook.Author = "作者"
newSingleBook.Country = "中国"
newSingleBook.Price = 10.2
newSingleBook.Year = "1985"
newBook.book = newSingleBook
newbooks.bookstore = newBook
Dim serializer As New JavaScriptSerializer
Dim strNewBook As String
strNewBook = serializer.Serialize(newbooks)
TextBox1.Text = strNewBook
End Sub
当button2按下时将json字符串解析为类：
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim serializer As New JavaScriptSerializer
Dim strNewBook As String = TextBox1.Text
Dim newBooks As New Books
newBooks = serializer.Deserialize(Of Books)(strNewBook)
TextBox2.Text &= "---------------" & ControlChars.CrLf
TextBox2.Text &= "Title：" & newBooks.bookstore.book.Title & ControlChars.CrLf
TextBox2.Text &= "Author：" & newBooks.bookstore.book.Author & ControlChars.CrLf
TextBox2.Text &= "Country：" & newBooks.bookstore.book.Country & ControlChars.CrLf
TextBox2.Text &= "Price：" & newBooks.bookstore.book.Price & ControlChars.CrLf
TextBox2.Text &= "Year：" & newBooks.bookstore.book.Year & ControlChars.CrLf
End Sub
生成和解析结果：
在对json字符串进行解析时，设置的类的属性名称请务必与json代码中的键名称相同。
button3生成：
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim newBooks As New Books1
ReDim newBooks.bookstore(2)
Dim newSingleBook As New Book
newSingleBook.Title = "这是测试"
newSingleBook.Author = "作者"
newSingleBook.Country = "中国"
newSingleBook.Price = 10
newSingleBook.Year = "1985"
Dim newBook As New BookStore1
newBook.book = newSingleBook
newBooks.bookstore(0) = newBook
newSingleBook = New Book
newSingleBook.Title = "这是测试1"
newSingleBook.Author = "作者"
newSingleBook.Country = "中国"
newSingleBook.Price = 11
newSingleBook.Year = "1985"
newBook = New BookStore1
newBook.book = newSingleBook
newBooks.bookstore(1) = newBook
newSingleBook = New Book
newSingleBook.Title = "这是测试2"
newSingleBook.Author = "作者"
newSingleBook.Country = "中国"
newSingleBook.Price = 12
newSingleBook.Year = "1985"
newBook = New BookStore1
newBook.book = newSingleBook
newBooks.bookstore(2) = newBook
Dim serializer As New JavaScriptSerializer
Dim strNewBook As String
strNewBook = serializer.Serialize(newBooks)
TextBox1.Text = strNewBook
End Sub
button4解析：
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
Dim serializer As New JavaScriptSerializer
Dim strNewBook As String = TextBox1.Text
Dim newBooks As New Books1
newBooks = serializer.Deserialize(Of Books1)(strNewBook)
For i As Integer = 0 To newBooks.bookstore.Length - 1
TextBox2.Text &= "---------------" & ControlChars.CrLf
TextBox2.Text &= "Title：" & newBooks.bookstore(i).book.Title & ControlChars.CrLf
TextBox2.Text &= "Author：" & newBooks.bookstore(i).book.Author & ControlChars.CrLf
TextBox2.Text &= "Country：" & newBooks.bookstore(i).book.Country & ControlChars.CrLf
TextBox2.Text &= "Price：" & newBooks.bookstore(i).book.Price & ControlChars.CrLf
TextBox2.Text &= "Year：" & newBooks.bookstore(i).book.Year & ControlChars.CrLf
Next
End Sub
生成和解析结果：
由于.net平台下C#和vb.NET很相似，本文也可以为C#爱好者提供参考。
学习更多vb.net知识，请参看vb.net教程目录
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