tut-install/examples/web/jsonp
Java Platform, Enterprise Edition (Java EE) 8 The Java EE Tutorial |
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This section describes how to build and run the jsonpstreaming
example
application. This example is a web application that demonstrates how to
create JSON data from form data, how to parse JSON data, and how to
write JSON output using the streaming API.
The jsonpstreaming
example application is in the
tut-install`/examples/web/jsonp/jsonpstreaming` directory.
The following topics are addressed here:
The jsonpstreaming
example application contains the following files.
Three JavaServer Faces pages.
The index.xhtml
page contains a form to collect information.
The filewritten.xhtml
page contains a text area that displays JSON
data.
The parsed.xhtml
page contains a table that lists the events from
the parser.
The StreamingBean.java
managed bean, a session-scoped managed bean
that stores the data from the form and directs the navigation between
the Facelets pages. This file also contains code that uses the JSON
streaming API.
The code used in StreamingBean.java
to write JSON data to a file is
similar to the example in Writing JSON Data
Using a Generator. The code to parse JSON data from a file is similar
to the example in Reading JSON Data Using a
Parser.
This section describes how to run the jsonpstreaming
example
application using NetBeans IDE and from the command line.
The following topics are addressed here:
Make sure that GlassFish Server has been started (see Starting and Stopping GlassFish Server).
From the File menu, choose Open Project.
In the Open Project dialog box, navigate to:
tut-install/examples/web/jsonp
Select the jsonpstreaming
folder.
Click Open Project.
In the Projects tab, right-click the jsonpstreaming
project and
select Run.
This command builds and packages the application into a WAR file
(jsonpstreaming.war
) located in the target
directory, deploys it to
the server, and opens a web browser window with the following URL:
http://localhost:8080/jsonpstreaming/
Edit the data on the page and click Write a JSON Object to a File to submit the form and write a JSON object to a text file. The following page shows the contents of the text file.
Click Parse JSON from File. The following page contains a table that lists the parser events for the JSON data in the text file.
Make sure that GlassFish Server has been started (see Starting and Stopping GlassFish Server).
In a terminal window, go to:
tut-install/examples/web/jsonp/jsonpstreaming/
Enter the following command to deploy the application:
mvn install
Open a web browser window and enter the following URL:
http://localhost:8080/jsonpstreaming/
Edit the data on the page and click Write a JSON Object to a File to submit the form and write a JSON object to a text file. The following page shows the contents of the text file.
Click Parse JSON from File. The following page contains a table that lists the parser events for the JSON data in the text file.
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