2  testing a simple web application

... File An assembly file contains the metadata for your application' s assembly An assembly is collection of code for your application Code Files A code file is a program source file, such as the ... you can use in your Windows programs Because this class is static, you don't create an instance of this class, and its members are always available within your form When the Run() method is called, ... Because the myLabel and myButton objects are private, this means that they are accessible only in the Form1 class Access modifiers enable you to specify the degree to which a class member is available...

Ngày tải lên: 20/10/2013, 10:15

... categories: • Data The Data category contains classes that allow you to access and store information from a database The Data category includes the following classes: SqlConnection, SqlCommand, ... SqlCommand, DataSet, and DataView, among others • • • • • • XML Schema The XML Schema category contains classes that allow you to access XML data Dialog Editor The Dialog Editor category contains controls ... display a blank form, as shown in Figure 6.2 You can think of the form as the canvas on which you can place standard Windows controls, such as labels, text boxes, and buttons You'll be adding...

Ngày tải lên: 17/10/2013, 19:15

... represents a set of commands and a connection to a database SqlDataAdapter is a class derived from DataAdaptor SqlDataAdapter is used to populate a DataSet ! To add and configure a SqlDataAdapter Create ... creating a typed DataSet is as follows: Generate a SqlDataAdapter Create a typed DataSet using the data adaptor that you created in the previous step Note The SqlDataAdapter is a class in ADO.NET, ... stored in the application state Module 5: Implementing a Simple Web Service 35 Using Application State Application- state variables are global variables for a given ASP.NET application Just like...

Ngày tải lên: 21/12/2013, 05:17

... place any initialization code in the Page_Load() method For example, if you wanted to access a database, you would open the database connection in the Page_Load() method The OnInit() and InitializeComponent() ... the new application being sent to IIS Once your application has been deployed to IIS, VS NET will display a blank Web form You can think of the Web form as the canvas on which you can place controls, ... AutoEventWireUp attribute indicates whether the ASP.NET framework automatically calls the Page_Init() and Page_Load() event handler methods These methods are defined in the WebForm1.aspx.cs; you'll learn...

Ngày tải lên: 21/01/2014, 07:20

... strPassword are passed, and a Boolean type value is returned The rest of this routine should look somewhat familiar because a DataAdapter object is created, and a DataTable object is filled, based ... match, then False is passed back Listing 13.2 SecurityServices.asmx.vb: Web Method to Validate Username and Password

Ngày tải lên: 20/10/2013, 13:15

... with a DataTable containing all the rows from the Customers table (see Figure 17.6) Notice that the space characters in the whereClause parameter value have been converted to plus (+) characters ... returns a DataSet with a DataTable containing the one row from the Customers table with a CustomerID of ALFKI, as shown in Figure 17.5 Notice that the equals (=) and single quote (') characters ... xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" targetNamespace="http://DbProgramming/NorthwindWebService" xmlns="http://schemas.xmlsoap.org/wsdl/"> ...

Ngày tải lên: 24/10/2013, 12:15

... ➥de/tarent/forum/NoCacheHeaderTag.java javac -classpath “.;c:\xalan-j_1_2_2\xalan.jar;c:\xalan➥j_1_2_2\xerces.jar;c:\jakarta-tomcat\lib\servlet.jar;” ➥de/tarent/forum/Xalan1Transformer.java -d /classes javac ... -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan➥j_2_0_1\bin\xalan.jar;c:\xalan-j_2_0_1\bin\xerces.jar;” ➥de/tarent/forum/Xalan2Transformer.java -d /classes javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalan➥j_2_0_1\bin\xalanj1compat.jar;c:\xalan-j_2_0_1\bin\xalan.jar;c:\xalan➥j_2_0_1\bin\xerces.jar;” ... de/tarent/forum/NodeKey.java -d /classes javac de/tarent/forum/BonNode.java -d /classes javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;” -d /classes ➥de/tarent/forum/ForestHashtable.java javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;”...

Ngày tải lên: 14/12/2013, 22:15

... Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) ... ➥bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta➥tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta➥tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too ... c:\jakarta-tomcat\classes;c:\jakartatomcat\lib\ant.jar;c:\jakarta-tomcat\lib\jaxp.jar;c:\jakarta➥tomcat\lib\servlet.jar;c:\jakarta-tomcat\lib\parser.jar;c:\jakarta-tomcat\lib\we ➥bserver.jar;c:\jakarta-tomcat\lib\jasper.jar;c:\jakarta➥tomcat\lib\xalanservlet.jar;c:\jakarta-tomcat\lib\xerces.jar;c:\jakarta➥tomcat\lib\xalanj1compat.jar;c:\jakarta-tomcat\lib\aaxalan.jar;c:\jdk1.3\lib\too...

Ngày tải lên: 14/12/2013, 22:15

... BonLogger.java BonForumTagExtraInfo.java OutputPathNamesTag.java OutputChatMessagesTag.java OutputDebugInfoTag.java NoCacheHeaderTag.java Xalan1Transformer.java Xalan2Transformer.java TransformTag.java ... and heralded in particular as a great benefit in connecting legacy applications to modern Web- based applications Within a Web application, passing even one parameter that contains XML data can ... 5.4 XML Data Flows in Web Applications We believe that passing XML data within a Web application will turn out to be as important as passing XML data between systems and applications.The latter...

Ngày tải lên: 14/12/2013, 22:15

... Apache Xalan Version? Xalan-Java

Ngày tải lên: 14/12/2013, 22:15

... we make that Web app global information available: Logging all To access context-initialization parameters ... being an academic exercise rather than a serious, practical example of a Web application We would rather call it R&D than academic, but we also recognize that the way we research software technologies ... chat logic and encapsulates the XML chat database.You will want to have the source code and javadocs for the project—and a large cup of java—available because the discussion here will not shy away...

Ngày tải lên: 14/12/2013, 22:15

... the pathNameHashtable The parent nodeKey is there with a key which is its pathName (and equal to chatSubject) nameAndAttributes nameAndAttributes nameAndAttributes nameAndAttributes nameAndAttributes ... take a look at how a host can rate a chat guest After that, we discuss a variety of ways to call bean methods from JSP The changeChatActorRating( ) Method A command available to chat hosts (and ... (now a ForestHashtable) Initializes the XML database for use as a chat Web app Loads XML files into a database using its methods Dumps the content of the database as XML in a string Provides access...

Ngày tải lên: 14/12/2013, 22:15

... in the Web application It will assume as it translates the tag that these variables are available as page attributes Later, when we look at the translated Java code for a Tag Handler instance, ... and tags Also, each parameter tag that you have needs a few changes, especially the following: Change each param tag into a jsp:param tag Enclose the value of each attribute ... A custom tag is used to express a custom action.That action encapsulates some Java-based functionality, made possible by a Java class called a tag handler.This is, in fact, a server-side JavaBean.This...

Ngày tải lên: 14/12/2013, 22:15

... the Tag Handler object looks for an attribute in application scope, also named xalanVersion, and uses its value to select the processor At present, only Xalan Java and Xalan Java are valid values ... system_executes_command.jsp Note that if you have Xalan-Java-2, you can also set xalanVersion to Xalan Java 1, as long as the compatibility JAR file is accessible, for example, as TOMCAT_HOME\lib\xalanj1compat.jar ... OutputChatMessagesTag Class 349 ); } The first method called handles the start tag In particular, it has access to its attribute values, if any All tags have a start tag; this method is always called...

Ngày tải lên: 14/12/2013, 22:15

... public PathNameHashtable pathNameHashtable = new PathNameHashtable(); As with the NodeNameHashtable class, you can see that this cache is an instance of a class (PathNameHashtable) that has been ... is a technique that can be applied easily to the additional dynamic XML application- data sets that are envisioned for other Web applications (for example, an e-commerce application named bonMarketPlace) ... extend java.util.Hashtable, but it adds nothing else to that class Again, this has been done only to make the pathNameHashtable variable available from JSP tags BonForumEngine Uses pathNameHashtable...

Ngày tải lên: 14/12/2013, 22:15

... in a small wrapper class called Param Each pair holds one pair of the parameters class Param // A class that stores a name-value pair of parameters { private String name, value; Param (String n, ... processing program may read and write files on the server and access and modify a database 13 Accessing a Database from a Web Page The database we will initially use is that for an address book The following ... color In addition to the main tags, a table can have a caption that is put between the tags and It also can have a heading row This is given with the tags … Between...

Ngày tải lên: 22/12/2013, 17:15

... the database Using a DataGrid Control to Access a Database A DataGrid allows you to access rows in a database table In the following sections, you'll learn how to create an ASP.NET Web application ... that uses a DataGrid control to access the rows in a database table The DataGrid you'll create will display the rows from the Products table of the Northwind database Creating the Web Application ... to create a DataSet object You use a DataSet object to store a local copy of the information stored in the database A DataSet object can represent database structures such as tables, rows, and...

Ngày tải lên: 24/12/2013, 01:17

... Projects\bonForum\src\bonMakeIt.bat 481 parameter rem java -classpath “c:\jakarta-tomcat\lib\xalanj1compat.jar;c:\jakartatomcat\lib\xerces.jar;c:\jakarta-tomcat\lib\xalan.jar” org.apache.xalan.xslt.Process -IN ... de/tarent/forum/OutputDebugInfoTag.java -d /classes javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;” de/tarent/forum/NoCacheHeaderTag.java -d /classes javac -classpath “.;c:\xalan-j_1_2_2\xalan.jar;c:\xalanj_1_2_2\xerces.jar;c:\jakarta-tomcat\lib\servlet.jar;” ... “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalanj_2_0_1\bin\xalan.jar;c:\xalan-j_2_0_1\bin\xerces.jar;” de/tarent/forum/Xalan2Transformer.java -d /classes javac -classpath “.;c:\jakarta-tomcat\lib\servlet.jar;c:\xalanj_2_0_1\bin\xalanj1compat.jar;c:\xalan-j_2_0_1\bin\xalan.jar;c:\xalanj_2_0_1\bin\xerces.jar;”...

Ngày tải lên: 24/12/2013, 07:17

... user and ask again for new subject and/or new topic // if actor was in it, always join with previous status, else warn and ask again // if actor was in it, always join as guest, else warn and ask ... //handle chatMessagesNavigator chatMessagesNavigator = normalize((String)request.getParameter(“chatMessagesNavigator”)); if(chatMessagesNavigator.trim().length() > 0) { session.setAttribute(“chatMessagesNavigator”, ... java.io.*; import java.util.Collections; import java.util.ArrayList; import java.util.Iterator; import java.util.Enumeration; import java.util.TreeMap; import java.util.Hashtable; //import javax.servlet.*;...

Ngày tải lên: 24/12/2013, 07:17