The team that wrote this redbook

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1 Preface p. xix The team that wrote this redbook p. xix Comments welcome p. xxiii Overview of WebSphere Application Server V3.5 p. 1 What is WebSphere Application Server? p. 1 WebSphere Application Server architecture overview p. 1 Standard Edition p. 3 Advanced Edition p. 4 Open standards p. 5 What's new in WebSphere V3.5? p. 7 Installation p. 7 InfoCenter p. 8 Migration p. 10 Java 2 support p. 10 Security p. 11 New and improved administration tools p. 11 New and improved connection pooling p. 13 New Resource Analyzer p. 14 New Log Analyzer p. 14 New platform support p. 15 New database support p. 15 New Web Server support p. 15 Conclusion p. 15 WebSphere programming model p. 17 Analysis of an example application p. 17 Application components p. 31 Control flow mechanisms p. 80 Data flow sources p. 90 Chapter summary p. 104 WebSphere components p. 115 WebSphere Administrative Server p. 115 Application server p. 122 What is an enterprise application? p. 134 WebSphere administrative interfaces p. 134 Servlet support p. 137 What is a servlet? p. 137 How servlets work p. 137 WebSphere and servlets p. 143 Writing a simple servlet example p. 144 Deploying the example servlet under WebSphere p. 147 Internal servlets p. 167

2 JSP support p. 189 Using JSP to present dynamic content p. 189 The collaboration between form, servlet, and JSP p. 190 Rapid development using JSP p. 193 JSP life cycle p. 194 Administering JSP files p. 196 Batch compiling JSP files p. 200 JSP 1.1 p. 200 Configuring and running your JSPs p. 212 Custom tag examples p. 228 Session support p. 245 V3.02.X vs. V3.5 overview p. 246 Session feature overview p. 246 Session performance considerations p. 287 Alternatives to session support: cookies p. 292 Servlet V2.2 in WebSphere V3.5.2 p. 295 WebSphere support for Servlet API V2.2 p. 295 Selecting Servlet V2.2 support p. 297 Comparison of the Servlet API versions p. 298 Multiple error pages p. 314 Welcome file lists p. 321 The Web Application Archive (WAR) p. 323 Deploying an application from a WAR file p. 328 Using JNDI to access LDAP p. 347 What is JNDI? p. 348 Naming concepts p. 349 JNDI specifications p. 351 JNDI sample application p. 353 JDBC 2.0 support p. 371 JDBC 2.0 Core API p. 371 JDBC 2.0 Optional Extension API p. 374 Administration of data sources p. 379 Best practices for JDBC 2.0 data access with WebSphere p. 383 Recovery from DB failures p. 389 Reference information p. 391 Enterprise Java Services p. 393 Configuring Enterprise Java Services p. 393 Installing an EJB into a container p. 400 Stateless session beans p. 427 Stateful session beans p. 439 Container managed persistence (CMP) entity beans p. 459

3 WebSphere EJB security p. 472 Transactions p. 503 Transaction basics p. 503 Java and transactions p. 506 Enterprise JavaBeans distributed transaction support p. 511 EJB concurrency control p. 525 Settings based on EJB usage p. 529 Transaction exception handling p. 533 WebSphere family interoperability p. 537 Conclusion p. 537 XML and WebSphere p. 539 XML overview p. 539 Using XML in WebSphere p. 540 An XML example p. 543 XML basics p. 544 XML and Web browsers: XSL and CSS p. 552 Programming with XML p. 561 Summary p. 571 Application deployment p. 573 Samples we used p. 573 Before configuration p. 574 Create a virtual host p. 576 Create a JDBC driver and data source p. 579 Create an application server and other basic resources p. 587 Placing source files p. 598 Add Servlet p. 601 Create enterprise beans p. 606 Verification of the servlet and EJB p. 613 Create an enterprise application p. 615 Verification of an enterprise application p. 620 Deployment and classpaths p. 621 WebSphere security p. 651 Application security p. 651 WebSphere security model p. 652 What's new in WebSphere V3.5 security p. 658 Using client certificate based authentication with WebSphere p. 658 WebSphere and LDAP servers p. 752 Custom challenge p. 769 Topologies selection p. 771 Topology selection criteria p. 771 Vertical scaling with WebSphere workload management p. 774

4 HTTP server separation from the application server p. 775 Scaling WebSphere in a three-tier environment p. 783 Horizontally scaling Web servers with WebSphere p. 785 One WebSphere domain vs. many p. 785 Multiple applications within one node vs. one application per node p. 788 Closing thoughts on topologies p. 789 Workload management p. 791 Cloning p. 791 WLM p. 795 Administrative console p. 811 About WebSphere Administrative Console p. 811 In conclusion p. 842 Web console p. 843 About Web console p. 843 Web console functionality p. 847 In conclusion p. 853 The WebSphere Control Program (WSCP) p. 855 Command line administration p. 856 Tcl language fundamentals p. 857 Invoking WSCP p. 859 Command syntax of WSCP p. 862 Example WSCP procedures p. 868 Interactive administration with WSCP p. 872 Troubleshooting with WSCP p. 874 Limitations and additional information p. 876 Additional resources p. 876 XMLConfig p. 877 Introduction to XML and XMLConfig p. 877 XMLConfig components p. 878 XMLConfig new features p. 879 XML: a suitable markup language for WebSphere p. 880 Customizing XML for the WebSphere XMLConfig tool p. 881 XML Config examples and uses p. 884 WebSphere sample programs p. 907 How to obtain the samples? p. 907 WebSphere samples matrix p. 908 WebSphere samples installation p. 909 WebSphere samples location p. 911 WebSphere WSsamplesDB2_app Web application p. 912 Database configuration p. 912 WSsamplesDB2_app User Profile sample p. 919

5 Sample Enterprise JavaBeans configuration p. 919 WebSphere Standard Edition samples p. 925 Sample InstantDB configuration p. 926 Standard and Advanced Edition samples listing p. 927 Problem determination p. 933 The problem determination process p. 933 Messages p. 934 The format of log and trace files p. 935 WebSphere log files p. 936 The trace facility p. 941 Object level trace (OLT) and the IBM distributed debugger p. 958 Log Analyzer p. 975 Log Analyzer overview p. 975 Downloading and installing the Log Analyzer p. 977 Using the Log Analyzer to view the activity.log p. 977 Using showlog to view the activity.log p. 979 Configuring the activity.log p. 983 Display log entries in different groupings p. 984 Analyze action p. 992 Using the Log Analyzer to view the ring buffer dump p. 996 Updating the symptom database p. 999 Saving logs as an XML file p Resource Analyzer p About Resource Analyzer p What is collected and analyzed? p Resource Analyzer functionlity p Levels of data collection p Resource Analyzer requirements p Starting the Resource Analyzer p Working with the analyzer p Resource Analyzer with WebSphere V3.5.2 p Resource Analyzer documentation p Migration p About the Migration Assistant p Main steps in WebSphere migration p Migration Assistant panels p Files that are saved during migration p What is left to be done? p Migration of WebSphere V2.0.3.x to WebSphere V3.5 p Migration Assistant documentation p Installation steps p. 1049

6 Planning p Installation steps overview p Uninstallation of WebSphere Application Server p Remote Sybase connectivity p Sybase jconnect Client p XML sample programs p Instructions for setting up and running the XML demo: Web Client p Instructions for setting up and running the XML demo: Java Client p JNDI sample programs p JNDI sample files p Deploy JNDI sample program to default_app p Run the JNDI sample p Big3 application p Big3 - small insurance application p Object interaction diagram p Install Big3 p Test the configuration p Big3 application directory structure p The admin.config file definitions p Using the additional material p Using the CD-ROM p Locating the additional material on the Internet p Using the Web material p Special notices p Related publications p IBM Redbooks p IBM Redbooks collections p Other resources p Referenced Web sites p How to get IBM Redbooks p IBM Redbooks fax order form p Index p IBM Redbooks review p Table of Contents provided by Blackwell's Book Services and R.R. Bowker. Used with permission.