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0B0-109 | WebLogic Server 9

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0B0-109 - WebLogic Server 9 - braindump

Vendor BEA
Exam Number 0B0-109
Exam Name WebLogic Server 9
Questions 120 Q & A
Recent Update February 19, 2019
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0B0-109 exam Dumps Source : WebLogic Server 9

Test Code : 0B0-109
Test Name : WebLogic Server 9
Vendor Name : BEA
Q&A : 120 Real Questions

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BEA WebLogic Server 9

SAP's internet application Server 6.2 vs. BEA's WebLogic | killexams.com Real Questions and Pass4sure dumps

How do you cost became 6.2 from SAP in comparison to WebLogic from BEA?

SAP's upcoming net utility server (turned into) 6.2 is meant to permit developers to create Java Server pages to access the R/3 utility server. This should be completed by way of integrating the Java digital computer from a Java software server seller that SAP purchased essentially two years ago.

although, BEA has been within the Java utility server enterprise for over 5 years now, and their WebLogic server is a extremely revered product. WebLogic is currently seen because the default business general in Java utility servers, and contains points designed to guide mission vital purposes. the usage of clustering and loadbalancing, which you could ensure that your Java functions have 24x7x365 availability, and BEA continues to give imaginative technologies comparable to internet services in each and every liberate.

SAP's net software server should be ready for primetime in a yr or two, but for now it would be considered as an preliminary effort into the Entperprise Java infrastructure area. The different part of changed into is the skill to mix ABAP and HTML directives to create dynamic web applications for SAP. if you should leverage latest ABAP abilities to create applications for the information superhighway, the changed into is effectively the handiest means to go.


Configuring WebLogic Server 9.x JDBC | killexams.com Real Questions and Pass4sure dumps

WebLogic Server 9.x gives database connectivity with statistics sources. an information supply is a pool of database connections from which a connection will also be got. a data supply may also be configured separately or as a multi-datasource. A multi-records supply is assortment of records sources. a data source is configured with a JNDI binding. A DataSource object is got with a JNDI lookup. A Connection object may also be bought from a DataSource object with the getConnection() components. WebLogic Server offers an administration console to configure a data supply. WebLogic Server 9.x includes type 4 JDBC drivers from DataDirect for DB2, Informix, Microsoft SQL Server, Sybase, and Oracle databases. JDBC drivers for other databases can be integrated in the server with the aid of including the JAR data for the JDBC drivers within the server classpath.

New JDBC features in WebLogic Server 9.0 consist of aid for JDBC 3.0, distinctive JNDI names for a knowledge source, and support for a Logging remaining resource transaction alternative. SQL statement Timeout has been delivered to the connection pool configuration. SecondsToTrustAnIdlePoolConnection and PinnedToThread connection pool residences, which we'll talk about beneath, have been introduced to increase information supply performance. The connection request failover feature has been more desirable. data assortment has been introduced for the distinct connection parameters for efficiency diagnostics. New elements had been brought to WebLogic classification four JDBC drivers and there is new identification-primarily based connection pooling. Transaction, diagnostic, and safety tabs are actually part of the administration console for configuring a data supply.

setting the EnvironmentDownload WebLogic Server 9.1. To install the utility server double-click on the server910_win32 software. click on on the next button in the BEA Installer. opt for Create a brand new BEA domestic in the opt for BEA home listing body and specify a listing in the BEA home listing box. click on on next. in the choose deploy classification frame select comprehensive and click on on the subsequent button. select any non-compulsory tools if required in the optional tools body and click on the subsequent button. in the select Product directory body select the default Product setting up directory and click on on the subsequent button. click on next within the Create shortcut places frame. BEA WebLogic Server receives installed.

down load the JDBC driver for the database. we'll configure JDBC connectivity with the MySQL database. So installation the MySQL database and down load the JDBC driver Connector/J.

Extract the MySQL JDBC driver zip file to a listing. Add the MySQL JDBC driver JAR file mysql-connector-java-three.1.11-bin.jar file to the CLASSPATH variable of the <weblogic91>\samples\domains\wl_server\bin\startWebLogic script file. <weblogic91> is the directory in which WebLogic Server 9.1 is put in. Double-click on on the <weblogic91>\samples\domains\wl_server\startWebLogic to start the WebLogic examples server.

growing an information SourceA information supply is a pool of JDBC connections from which a connection will also be got with the getConnection() method of a DataSource object. during this section we will create a knowledge supply in the administration console. entry the administration console with the URL http://localhost:7001/console. in the administration console select the node capabilities>JDBC>DataSources.

To create a new JDBC statistics supply click on on New within the information Sources desk (see determine 1).

Specify a data source identify within the Create a brand new JDBC statistics source body and a JNDI identify for the data source. a knowledge supply is sure on a JNDI tree with a JNDI identify. opt for a Database category. we will create an information source with the MySQL database. select MySQL as the Database class. opt for MySQL's driver (category four) as the database driver and click on on next (see determine 2).

a data supply can be configured with any of the favourite databases. WebLogic gives class 4 JDBC drivers from DataDirect for DB2, Informix, Oracle, SQL Server, and Sybase. The DataDirect drivers are pre-put in within the <weblogic9.1>/server/lib directory (see determine three). The distinctive JDBC category four drivers protected with WebLogic Server are listed in desk 1.

Databases apart from those for which a JDBC driver is covered can also be chosen. If a JDBC driver apart from the WebLogic driver is selected add the driving force zip/JAR file to the CLASSPATH variable in the startWebLogic script (see figure 4).

in the Transaction alternatives frame the transaction attributes of the statistics source are unique. If a XA driver is selected international transactions are immediately supported with the two-section commit transaction protocol. a world transaction, or a allotted transaction, is a transaction that includes two or extra transactions over diverse (or single) aid managers (a RDBMS database is a useful resource manager). a world transaction is managed by a Transaction supervisor the use of JTA. For a non-XA information source to assist international transactions, assess the world Transactions checkbox. select the protocol that supports global transactions. The different transaction protocols are listed in table 2.

in the Transaction alternatives web page click on next (see figure 5).

in the Connection residences frame specify the Database name, examine for the default database example. Specify Host identify as localhost, Port as 3306, and consumer identify as root. A password is rarely required for the basis username. click on the next button (see figure 6).

in the examine Database Connection body the driver type identify, connection URL, and username for the MySQL database are precise. click on on the examine Database Configuration button to verify the connection with the database (see figure 7).

A message gets displayed indicating if a connection has been based. If database doesn't get connected an error message gets displayed. click on the next button.

within the opt for ambitions frame select a server where the facts supply might be deployed. To install to the examples server, select examplesServer and click on on the finish button (see figure 8).

a knowledge source receives configured and brought to the information Sources table (see determine 9).

click on on the prompt changes button to make the statistics source available to purposes in the server.

Configuring a knowledge SourceIn this area the records source created in the closing area should be configured. choose the statistics source to configure in the records Sources desk. choose the Configuration tab (selected via default). within the Configurations frame the data source JNDI identify can also be modified (see figure 10).

The different configuration alternatives for a data source are listed in table 3.

To configure the connection pool associated with facts source opt for the Connection Pool hyperlink. initial means, maximum ability, and ability increment may also be set within the connection pool configuration (see determine 11).

probably the most connection pool settings are listed in table 4.

The transaction protocol settings can be configured with the Transaction hyperlink. Monitoring facts can also be accumulated with the Diagnostics hyperlink (see determine 12).

one of the facts source profiles that may may be accrued are listed in table 5.

To monitor an information supply opt for the Monitoring tab. to administer the WebLogic Server circumstances to which the information source is deployed opt for the manage tab. In a deployed server example the statement cache can also be cleared and server will also be suspended or shut down.

making a Multi-information SourceA multi-facts source is an summary community of facts sources, which provides failover and cargo balancing around facts sources. A multi-records source has a JNDI binding corresponding to a knowledge source. To create a multi-data source click on the functions>JDBC>Multi statistics Sources link within the administration console (see determine 13).

in the Multi information Sources table click on on the brand new button to create a new multi-facts supply (see figure 14).

in the Configure the Multi records supply body specify an information source identify and a JNDI name for the records supply. choose the algorithm category as Failover or Load Balancing. click on the subsequent button (see determine 15).

in the opt for pursuits body select the examplesServer or an extra server to set up the multi-records supply to. click on the subsequent button (see determine sixteen).

within the select records source category body opt for XA driver for an XA statistics supply or a non-XA driver for a non-XA facts source. click on the subsequent button (see figure 17).

within the Add records Sources body add facts sources from the purchasable listing to the Chosen list. If new records sources are required click on the Create a new facts supply button. Then click on on the finish button (see figure 18).

a brand new information source gets configured and added to the Multi records Sources desk. click on the spark off changes button to make the records supply obtainable to purposes (see figure 19).

A multi-information source will also be configured through settling on the multi-facts supply hyperlink. The ambitions to which the multi-facts source is deployed can also be configured with the ambitions tab. The information sources within the multi-information supply can also be configured with the records Sources link in the Configuration tab. The multi-information source JNDI name may also be modified within the Configuration>generic frame. The Algorithm category specifies the algorithm used to choose a knowledge supply from which a connection is obtained. If the algorithm classification is Failover, connection requests are sent successively to the records sources in the checklist unless a connection is obtained or the conclusion of the facts source listing is reached. If the algorithm category is a Load Balancing connection request the weight is disbursed evenly over the statistics sources in the record. If load balancing is the selected connection, failover is also offered with the connection requests being despatched to distinctive data sources in the list until a connection gets based or the end of the statistics supply checklist is reached (see determine 20).

A multi-information source additionally offers the Failover Request If Busy, Failover Callback Handler, and verify Frequency settings. For a multi-facts supply with the Failover algorithm if Failover Request If Busy is selected the connection request is shipped to the subsequent information source if all of the connections in a knowledge supply are busy. The Failover Callback Handler specifies the software classification to handle the callback despatched when a multi-facts source is able to ship a Failover connection request to one more information source. check Frequency specifies the interval in x variety of seconds after which connections are demonstrated. If a connection fails the connection is closed and reopened. If the connection fails once more the connection is closed (see determine 21).

performance Tuning JDBCSome of the JDBC design considerations to enrich efficiency consist of the alternative of the JDBC driver. The WebLogic type 4 JDBC drivers from DataDirect provide related performance. The connection pooling offered by using WebLogic Server records sources improves efficiency by means of conserving a pool of connections purchasable for JDBC functions. Connection will not have to be opened and closed for every client. Tune the number of connections by using environment the preliminary capability equal to maximum capacity in a connection pool. Maximize the reuse of connections as opposed to closing and opening connections. A connection may be pinned to a thread by using setting the PinnedToThread configuration pool attribute. close connections after a connection is not required.

test Connections on Reserve checks connections before making a connection attainable to a client, but connection testing can in the reduction of efficiency. To prevent well-known connection testing set the connection pool attribute Seconds to have faith an Idle Pool Connection, which specifies the number of seconds for which a connection back by a shopper isn't established with a SQL query. information supply efficiency can be improved by picking Row Prefetch Enabled and an most excellent pre-fetch size in configuring a data source. Row pre-fetching improves efficiency with the aid of fetching varied rows from the server to an external customer. Caching statements improves efficiency through reusing statements instead of creating new ones. observation caching is designated in the connection pool configuration.

establishing a JDBC JSP ApplicationIn this section we will develop a JSP application to retrieved information from a MySQL database table with the facts source configured in the creating an information source part. First, create an example database table in the MySQL database. entry the MySQL database with the command mysql.

>mysql

To create a database table within the look at various database instance login to the test database.

mysql>use examine

Create a table, Catalog with the SQL script in record 1.

Create a JSP, catalog.jsp. within the JSP import the java.sql, javax.sql, java.util, and javax.naming programs.

<%@ web page

import="java.sql.*,javax.sql.*,java.util.*,javax.naming.*"

%>

Create a InitialContext object.

InitialContext ctx=new InitialContext();

Create a DataSource object from the JNDI identify of the MySQL facts source.

DataSource ds=(DataSource)ctx.look up("jdbc/MySQLDS");

gain a JDBC connection from the DataSource object.

Connection connection=ds.getConnection();

Create a press release object from the Connection object.

statement stmt=connection.createStatement();

Run a SQL query with the executeQuery() formulation to come back a ResultSet object. Specify a SQL question that selects all of the columns in the example database desk Catalog.

ResultSet resultSet=stmt.executeQuery("choose * from Catalog");

Create an HTML table with a column similar to each of the rows in the influence set. Add a header row to the HTML desk. Iterate over the effect set and add row values to the HTML table.

The JSP, catalog.jsp, to generate a HTML table from the illustration database table with the records source configured within the WebLogic Server is in list 2.

To run the JSP in WebLogic Server copy the JSP to the <weblogic91>\samples\server\examples\build\mainWebApp listing. Invoke the JSP with the URL http://localhost:7001/catalog.jsp. The JSP runs in WebLogic Server and generates an HTML table (see figure 22).

ConclusionWebLogic Server 9.0/9.1 has a brand new function, multi-statistics source, a bunch of records sources with a JNDI identify binding. A multi-statistics supply facilitates highest records supply availability. A separate connection pool configuration in WebLogic Server eight.1 has been removed. The facts source configuration in WebLogic Server 9.x gives better connection request failover and load balancing between facts sources.


BEA Rolls Out WebLogic Server 9.0 for SOA | killexams.com Real Questions and Pass4sure dumps

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WebLogic Server 9

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SAP's Web Application Server 6.2 vs. BEA's WebLogic | killexams.com real questions and Pass4sure dumps

How do you rate WAS 6.2 from SAP compared to WebLogic from BEA?

SAP's upcoming Web Application server (WAS) 6.2 is supposed to allow developers to create Java Server pages to access the R/3 application server. This will be accomplished by integrating the Java virtual machine from a Java application server vendor that SAP purchased nearly two years ago.

However, BEA has been in the Java application server business for over five years now, and their WebLogic server is a highly respected product. WebLogic is currently seen as the default industry standard in Java application servers, and includes features designed to support mission critical applications. Using clustering and loadbalancing, you can ensure that your Java applications have 24x7x365 availability, and BEA continues to provide innovative technologies such as Web services in each release.

SAP's Web Application server should be ready for primetime in a year or two, but for now it should be seen as an initial effort into the Entperprise Java infrastructure space. The other component of WAS is the ability to combine ABAP and HTML directives to create dynamic Web applications for SAP. If you need to leverage existing ABAP skills to create applications for the Internet, the WAS is simply the only way to go.


Configuring WebLogic Server 9.x JDBC | killexams.com real questions and Pass4sure dumps

WebLogic Server 9.x provides database connectivity with data sources. A data source is a pool of database connections from which a connection can be obtained. A data source can be configured separately or as a multi-datasource. A multi-data source is collection of data sources. A data source is configured with a JNDI binding. A DataSource object is obtained with a JNDI lookup. A Connection object can be obtained from a DataSource object with the getConnection() method. WebLogic Server provides an administration console to configure a data source. WebLogic Server 9.x includes Type 4 JDBC drivers from DataDirect for DB2, Informix, Microsoft SQL Server, Sybase, and Oracle databases. JDBC drivers for other databases can be incorporated in the server by including the JAR files for the JDBC drivers in the server classpath.

New JDBC features in WebLogic Server 9.0 include support for JDBC 3.0, multiple JNDI names for a data source, and support for a Logging Last Resource transaction option. SQL Statement Timeout has been added to the connection pool configuration. SecondsToTrustAnIdlePoolConnection and PinnedToThread connection pool properties, which we'll discuss below, have been added to improve data source performance. The connection request failover feature has been improved. Statistics collection has been added for the different connection parameters for performance diagnostics. New features have been added to WebLogic Type 4 JDBC drivers and there's new identity-based connection pooling. Transaction, diagnostic, and security tabs are now part of the administration console for configuring a data source.

Setting the EnvironmentDownload WebLogic Server 9.1. To install the application server double-click on the server910_win32 application. Click on the Next button in the BEA Installer. Select Create a New BEA Home in the Choose BEA Home Directory frame and specify a directory in the BEA Home Directory field. Click on Next. In the Choose Install Type frame select Complete and click on the Next button. Select any optional tools if required in the Optional Tools frame and click on the Next button. In the Choose Product Directory frame select the default Product Installation Directory and click on the Next button. Click on Next in the Create shortcut locations frame. BEA WebLogic Server gets installed.

Download the JDBC driver for the database. We'll configure JDBC connectivity with the MySQL database. So install the MySQL database and download the JDBC driver Connector/J.

Extract the MySQL JDBC driver zip file to a directory. Add the MySQL JDBC driver JAR file mysql-connector-java-3.1.11-bin.jar file to the CLASSPATH variable of the <weblogic91>\samples\domains\wl_server\bin\startWebLogic script file. <weblogic91> is the directory in which WebLogic Server 9.1 is installed. Double-click on the <weblogic91>\samples\domains\wl_server\startWebLogic to start the WebLogic examples server.

Creating a Data SourceA data source is a pool of JDBC connections from which a connection can be obtained with the getConnection() method of a DataSource object. In this section we'll create a data source in the administration console. Access the administration console with the URL http://localhost:7001/console. In the administration console select the node Services>JDBC>DataSources.

To create a new JDBC data source click on New in the Data Sources table (see Figure 1).

Specify a data source name in the Create a New JDBC Data Source frame and a JNDI name for the data source. A data source is bound on a JNDI tree with a JNDI name. Select a Database Type. We'll create a data source with the MySQL database. Select MySQL as the Database Type. Select MySQL's driver (Type 4) as the database driver and click on Next (see Figure 2).

A data source can be configured with any of the commonly used databases. WebLogic provides Type 4 JDBC drivers from DataDirect for DB2, Informix, Oracle, SQL Server, and Sybase. The DataDirect drivers are pre-installed in the <weblogic9.1>/server/lib directory (see Figure 3). The different JDBC Type 4 drivers included with WebLogic Server are listed in Table 1.

Databases other than those for which a JDBC driver is included can also be selected. If a JDBC driver other than the WebLogic driver is selected add the driver zip/JAR file to the CLASSPATH variable in the startWebLogic script (see Figure 4).

In the Transaction Options frame the transaction attributes of the data source are specified. If a XA driver is selected global transactions are automatically supported with the two-phase commit transaction protocol. A global transaction, or a distributed transaction, is a transaction that involves two or more transactions over multiple (or single) resource managers (a RDBMS database is a resource manager). A global transaction is managed by a Transaction Manager using JTA. For a non-XA data source to support global transactions, check the Global Transactions checkbox. Select the protocol that supports global transactions. The different transaction protocols are listed in Table 2.

In the Transaction Options page click on Next (see Figure 5).

In the Connection Properties frame specify the Database Name, test for the default database instance. Specify Host Name as localhost, Port as 3306, and user name as root. A password isn't required for the root username. Click on the Next button (see Figure 6).

In the Test Database Connection frame the driver class name, connection URL, and username for the MySQL database are specified. Click on the Test Database Configuration button to test the connection with the database (see Figure 7).

A message gets displayed indicating if a connection has been established. If database doesn't get connected an error message gets displayed. Click on the Next button.

In the Select Targets frame select a server where the data source will be deployed. To deploy to the examples server, select examplesServer and click on the Finish button (see Figure 8).

A data source gets configured and added to the Data Sources table (see Figure 9).

Click on the Activate Changes button to make the data source available to applications in the server.

Configuring a Data SourceIn this section the data source created in the last section will be configured. Select the data source to configure in the Data Sources table. Select the Configuration tab (selected by default). In the Configurations frame the data source JNDI name can be modified (see Figure 10).

The other configuration options for a data source are listed in Table 3.

To configure the connection pool associated with data source select the Connection Pool link. Initial capacity, maximum capacity, and capacity increment can be set in the connection pool configuration (see Figure 11).

Some of the connection pool settings are listed in Table 4.

The transaction protocol settings can be configured with the Transaction link. Monitoring statistics can be collected with the Diagnostics link (see Figure 12).

Some of the data source profiles that can may be collected are listed in Table 5.

To monitor a data source select the Monitoring tab. To administer the WebLogic Server instances to which the data source is deployed select the Control tab. In a deployed server instance the statement cache can be cleared and server can be suspended or shut down.

Creating a Multi-Data SourceA multi-data source is an abstract group of data sources, which provides failover and load balancing around data sources. A multi-data source has a JNDI binding similar to a data source. To create a multi-data source click on the Services>JDBC>Multi Data Sources link in the administration console (see Figure 13).

In the Multi Data Sources table click on the New button to create a new multi-data source (see Figure 14).

In the Configure the Multi Data Source frame specify a data source name and a JNDI name for the data source. Select the algorithm type as Failover or Load Balancing. Click on the Next button (see Figure 15).

In the select Targets frame select the examplesServer or another server to deploy the multi-data source to. Click on the Next button (see Figure 16).

In the Select Data Source Type frame select XA driver for an XA data source or a non-XA driver for a non-XA data source. Click on the Next button (see Figure 17).

In the Add Data Sources frame add data sources from the Available list to the Chosen list. If new data sources are required click on the Create a New Data Source button. Then click on the Finish button (see Figure 18).

A new data source gets configured and added to the Multi Data Sources table. Click on the Activate Changes button to make the data source available to applications (see Figure 19).

A multi-data source can be configured by selecting the multi-data source link. The targets to which the multi-data source is deployed can be configured with the Targets tab. The data sources in the multi-data source can be configured with the Data Sources link in the Configuration tab. The multi-data source JNDI name can be modified in the Configuration>General frame. The Algorithm Type specifies the algorithm used to select a data source from which a connection is obtained. If the algorithm type is Failover, connection requests are sent successively to the data sources in the list until a connection is obtained or the end of the data source list is reached. If the algorithm type is a Load Balancing connection request the load is distributed evenly over the data sources in the list. If load balancing is the selected connection, failover is also provided with the connection requests being sent to different data sources in the list until a connection gets established or the end of the data source list is reached (see Figure 20).

A multi-data source also provides the Failover Request If Busy, Failover Callback Handler, and Test Frequency settings. For a multi-data source with the Failover algorithm if Failover Request If Busy is selected the connection request is sent to the next data source if all the connections in a data source are busy. The Failover Callback Handler specifies the application class to handle the callback sent when a multi-data source is ready to send a Failover connection request to another data source. Test Frequency specifies the interval in x number of seconds after which connections are tested. If a connection fails the connection is closed and reopened. If the connection fails again the connection is closed (see Figure 21).

Performance Tuning JDBCSome of the JDBC design considerations to improve performance include the selection of the JDBC driver. The WebLogic Type 4 JDBC drivers from DataDirect provide comparable performance. The connection pooling provided by WebLogic Server data sources improves performance by keeping a pool of connections available for JDBC applications. Connection don't have to be opened and closed for each client. Tune the number of connections by setting the Initial Capacity equal to Maximum capacity in a connection pool. Maximize the reuse of connections rather than closing and opening connections. A connection may be pinned to a thread by setting the PinnedToThread configuration pool attribute. Close connections after a connection is not required.

Test Connections on Reserve tests connections before making a connection available to a client, but connection testing can reduce performance. To prevent frequent connection testing set the connection pool attribute Seconds to Trust an Idle Pool Connection, which specifies the number of seconds for which a connection returned by a client isn't tested with a SQL query. Data source performance can be improved by selecting Row Prefetch Enabled and an optimal pre-fetch size in configuring a data source. Row pre-fetching improves performance by fetching multiple rows from the server to an external client. Caching statements improves performance by reusing statements rather than creating new ones. Statement caching is specified in the connection pool configuration.

Developing a JDBC JSP ApplicationIn this section we'll develop a JSP application to retrieved data from a MySQL database table with the data source configured in the Creating a Data Source section. First, create an example database table in the MySQL database. Access the MySQL database with the command mysql.

>mysql

To create a database table in the test database instance login to the test database.

mysql>use test

Create a table, Catalog with the SQL script in Listing 1.

Create a JSP, catalog.jsp. In the JSP import the java.sql, javax.sql, java.util, and javax.naming packages.

<%@ page

import="java.sql.*,javax.sql.*,java.util.*,javax.naming.*"

%>

Create a InitialContext object.

InitialContext ctx=new InitialContext();

Create a DataSource object from the JNDI name of the MySQL data source.

DataSource ds=(DataSource)ctx.lookup("jdbc/MySQLDS");

Obtain a JDBC connection from the DataSource object.

Connection connection=ds.getConnection();

Create a Statement object from the Connection object.

Statement stmt=connection.createStatement();

Run a SQL query with the executeQuery() method to return a ResultSet object. Specify a SQL query that selects all of the columns in the example database table Catalog.

ResultSet resultSet=stmt.executeQuery("Select * from Catalog");

Create an HTML table with a column corresponding to each of the rows in the result set. Add a header row to the HTML table. Iterate over the result set and add row values to the HTML table.

The JSP, catalog.jsp, to generate a HTML table from the example database table with the data source configured in the WebLogic Server is in Listing 2.

To run the JSP in WebLogic Server copy the JSP to the <weblogic91>\samples\server\examples\build\mainWebApp directory. Invoke the JSP with the URL http://localhost:7001/catalog.jsp. The JSP runs in WebLogic Server and generates an HTML table (see Figure 22).

ConclusionWebLogic Server 9.0/9.1 has a new feature, multi-data source, a group of data sources with a JNDI name binding. A multi-data source facilitates maximum data source availability. A separate connection pool configuration in WebLogic Server 8.1 has been removed. The data source configuration in WebLogic Server 9.x provides enhanced connection request failover and load balancing between data sources.


Oracle app server hack let one attacker mine $226,000 worth of cryptocoins | killexams.com real questions and Pass4sure dumps

If "java" suddenly dies on your WebLogic or PeopleSoft server, you may be getting mined for Monero.If "java" suddenly dies on your WebLogic or PeopleSoft server, you may be getting mined for Monero. David Cairns / Getty Images reader comments with 24 posters participating Share this story
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  • In a report published on January 7 by SANS Technology Institute, Morphus Labs researcher Renato Marinho revealed what appears to be an ongoing worldwide hacking campaign by multiple attackers against PeopleSoft and WebLogic servers that leverages a Web application server vulnerability patched by Oracle late last year.

    Further Reading Oracle rushes out 5 patches for huge vulnerabilities in PeopleSoft app server

    These attackers aren't stealing data from victims, however—at least as far as anyone can tell. Instead, the exploit is being used to mine cryptocurrencies. In one case, according to analysis posted today by SANS Dean of Research Johannes B. Ullrich, the attacker netted at least 611 Monero coins (XMR)—$226,000 dollars' worth of the cryptocurrency.

    The attacks appear to have leveraged a proof-of-concept exploit of the Oracle vulnerability published in December by Chinese security researcher Lian Zhang. Almost immediately after the proof of concept was published, there were reports of it being used to install cryptominers from several different locations—attacks launched from servers (some of them likely compromised servers themselves) hosted by Digital Ocean, GoDaddy, and Athenix.

    "The victims are distributed worldwide," wrote Ullrich. "This isn’t a targeted attack. Once the exploit was published, anybody with limited scripting skills was able to participate in taking down WebLogic/PeopleSoft servers."

    In the case of the attack documented by Marinho, the attacker installed a legitimate Monero mining software package called xmrig on 722 vulnerable WebLogic and PeopleSoft systems—many of them running on public cloud services, according to Ulrich. More than 140 of those systems were in the Amazon Web Services public cloud, and smaller numbers of servers were on other hosting and cloud services—including roughly 30 on Oracle's own public cloud service.

    The exploit code makes scanning for vulnerable systems simple, so the entire universe of publicly exposed, unpatched Oracle Web application servers could quickly fall victim to these and other attacks. On the bright side, some of these surreptitious mining efforts were detected relatively quickly because the script used to "drop" the mining tool also killed the "java" process on the targeted servers—essentially shutting down the application server and drawing quick attention from administrators.

    The installer used in the documented Monero attack was a simple bash script. It issues commands to seek out and kill other blockchain miners that may have arrived before it, and it sets up a CRON job to download and launch the miner tool in order to keep its foothold intact.

    Ullrich warned that victims shouldn't simply end their response to these intrusions by patching their servers and removing the mining software. "It is very likely that more sophisticated attackers used this to gain a persistent foothold on the system. In this case, the only 'persistence' we noticed was the CRON job. But there are many more, and more difficult to detect, ways to gain persistence."



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