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How to create Excel File Servlet

2025-01-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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This article mainly introduces how to create Excel File Servlet, the introduction in the article is very detailed, has a certain reference value, interested friends must read!

1. File- > New...- > Web- > double-click the Standard Servlet icon to launch the wizard to create a standard Servlet.

Specify that the Servlet class name is Excel File Servlet, set the package name to bookstore.servlet, and press Next to the next step.

2. Select the override doGet () processing method.

◆ Servlet:creates content type:unspecified, which sets the type of generated document for Servlet. Since this Servlet is downloaded as an Excel file and downloaded as an attachment, we need to manually set the response content type of Servlet.

◆ implements methods:doGet (), so that the wizard will generate a doGet () method framework.

Press Next to proceed to the next step.

3. Define the URL parameters of Servlet.

Click Add Parameter to display a new line in the parameter list and define the URL parameter of Servlet in the new line, where Name is the parameter name of URL and Variable is the corresponding variable name in Servlet. In addition, you can specify comments and default values for variables through Desc and Default, and specify the type of variable in the Type column.

We define two URL parameters, year and month, which specify the year and month in which the log needs to be downloaded. Press Next to proceed to the next step.

4. Specify the access path to servlet

Accept the name and access path of the Servlet set by the step 4 wizard, which are:

◆ Name:Excel File Servlet

◆ URL pattern:/Excel File Servlet

Press Finish directly to create an Excel File Servlet with the following code:

Code Excel File Servlet.java:

Package bookstore.servlet

Import javax.servlet.*

Import javax.servlet.http.*

Import java.io.*

Import java.util.*

Public class ExcelFileServlet

Extends HttpServlet

{

/ / Initialize global variables

Public void init ()

Throws ServletException

{

}

/ / Process the HTTP Get request

Public void doGet (HttpServletRequest request

HttpServletResponse response)

Throws ServletException, IOException

{

/ / year

String year = request.getParameter ("year")

If (year = = null)

{

Year = "2005"

}

/ / month

String month = request.getParameter ("month")

If (month = = null)

{

Month = "1"

}

PrintWriter out = response.getWriter ()

/ / @ todo implement GET

}

/ / Clean up resources

Public void destroy ()

{

}

}

The above is all the content of this article "how to create Excel File Servlet". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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