java ean 128

java ean 128

java gs1-128

java barcode ean 128

java barcode ean 128

java gs1-128,

java barcode ean 128,

java ean 128,
java ean 128,
java ean 128,
java ean 128,

java ean 128,
java barcode ean 128,
java gs1 128,
java gs1-128,
java gs1 128,
java gs1 128,

java gs1-128,
java gs1 128,
java barcode ean 128,
java gs1-128,
java barcode ean 128,
java barcode ean 128,
java barcode ean 128,
java barcode ean 128,
java ean 128,
java gs1-128,
java barcode ean 128,
java ean 128,
java ean 128,
java gs1 128,
java ean 128,
java gs1 128,
java barcode ean 128,
java gs1 128,

java ean 128,
java gs1 128,
java gs1-128,
java gs1 128,
java gs1-128,
java barcode ean 128,
java ean 128,
java gs1 128,
java gs1 128,
java gs1-128,
java gs1-128,
java gs1 128,
java gs1-128,
java barcode ean 128,
java ean 128,
java gs1 128,
java gs1 128,
java gs1 128,
java gs1 128,
java ean 128,
java barcode ean 128,
java ean 128,
java gs1 128,
java gs1-128,
java gs1 128,
java gs1 128,
java gs1 128,
java ean 128,
java barcode ean 128,
java barcode ean 128,
java ean 128,
java gs1-128,
java barcode ean 128,
java gs1 128,
java ean 128,
java ean 128,
java gs1 128,
java barcode ean 128,
java gs1-128,
java barcode ean 128,
java gs1-128,
java ean 128,
java ean 128,
java ean 128,
java gs1-128,
java gs1-128,
java gs1-128,
java gs1 128,
java ean 128,

The request parameters from the portlet s render request object are available in the servlet or JSP as parameters on the servlet request object. The parameters are named the same, and can be accessed through the getParameter() method on the request object. The same is true for attributes stored on the portlet s render request. The servlet or JSP will be able to access these attributes from the servlet request object.

Once the record is read, some interesting stuff goes on. The image needs to be read from the database into a Bitmap type. You do this by reading the contents of the database into a byte array (called bits in the preceding code). This byte array then has to be written to an output stream using a binary writer. In this case, we are using a memory stream, as we don t need to write the data out to another process. The bitmap is initialized from this stream. To write it out to the response buffer, you need to set the MIME type so that the browser will understand the content you are sending in this case, it is an image/jpeg type, indicating that you are writing out an image. You then call the Save method of the bitmap to write its contents out. This method allows you to specify a stream to save to and a format to save in. If you write it to Response.OutputStream, it will be returned to the caller of this URL. The format to be used is ImageFormat.Jpeg, as this matches the MIME type that was set earlier. In this case, if no image is found, a simple No image found message is written out. For a more user-friendly application, you could perhaps have a default image that gets written out instead. Now, if you run the application, you can pass it an ID, and if there is a photo for that ID, it will be rendered in the browser. You can see it in action in Figure 11-6. Try doing a View Source command on this page you won t see anything. Why do you think that is

All of the resources in a portlet application share a session for each user. Portlets will access the session through the PortletSession object, and servlets and JSPs will use their HttpSession objects. Any attributes stored on the session by a portlet are accessible through the HttpSession object, and any attributes stored by servlets or JSPs are accessible through the PortletSession object. A portlet may share an object in the session for a servlet or a JSP by putting the object into the application scope. If the object is in portlet scope, the object will be in a namespace defined by the portlet container, and will not be easily accessible to the servlet or JSP The object will still be an attribute on the session, . but it would be tricky to decode the proper name. You should avoid trying to decode an out-of-scope attribute, because it will be container-specific this would qualify as a hack. Inside the portlet, you call the setAttribute() method on a PortletSession object like this:

do { switch (navigator.Name) { case "firstname": textBox2.Text = navigator.Value; break; case "lastname": textBox3.Text = navigator.Value; break; case "homephone": textBox4.Text = navigator.Value; break; case "notes": textBox5.Text = navigator.Value; break; } } while (navigator.MoveToNext()); navigator.MoveToParent(); } } while (navigator.MoveToNext()); } } The code should be familiar to you, because we used something similar in previous examples. The code loops through all the <employee> nodes and finds the one that matches the supplied employee ID. The values of various child nodes such as <firstname>, <lastname>, <homephone>, and <notes> are displayed in the respective text boxes by using the Value property of XPathNavigator.

The reason why you do not see any source on this page is because there is none. The request to the server simply returns a picture. By setting the MIME type on the response, the browser knows to read the bitstream for the image and render it as a JPG. Thus, within a page, you could point an <img> tag at the page to get it to render these graphics. Here s an example:

PortletSession session = request.getPortletSession(true); session.setAttribute("ContentManager", contentManager, PortletSession.APPLICATION_SCOPE);

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