JBUILDER9 WebLogic7 actual articles
Session bean
Author: Huang Kai E_mail: hk_sz@163.com
The application of the second session bean
First, create an EJBS
1. Select File / New in the menu bar.
2. Click the Enterprise subpage;
3. Select EJB Module and click OK to appear EJB Module window;
4. Enter Math after NAME;
5. Change Version to EJB 2.0 Compliant;
6. Click OK. EJB is designed in the document window.
7. On the right MATH subpage, click the first Create EJB icon, then find and click Session Bean;
8. Enter Mathejb after Bean Name;
9. Move the mouse to Mathejb, press right-click, pop up the menu;
10. Select Add / Method, then a session box appears, you can set the properties of this method on the above;
11. Enter the add name after Method Name;
12. Enter int after return type;
13. Interfaces Select Remote;
14. Right-click Add, select View Bean Source in the pop-up menu;
15. At this time, the source code of EJB is displayed, and the ADD method is as follows:
Public Int Add (int Num1, int Num2) {
Int results = Num1 Num2;
Return Result;
}
16. Find the Mathejb.java file in the
17.
Public int add () throws remoteexception;
Replace with:
Public Int Add (int Num1, int Num2) throws RemoteException;
18. Expand the MATH module in the engineering window;
19. Double-click Mathejb, change home jndi name: content to EJB / MATHEJB in the General sub page of the document window;
20.File / Save All;
21.math module Right-click to open the menu, select Make to compile EJB Classes;
Next we test whether this bean works fine.
Second, create a client to test this bean
JBuilder provides us with a test client.
1. Select File / New in the menu bar.
2. Click the Enterprise subpage;
3. Select EJB Test Client and click OK to appear EJB Test Client Window;
4. Click Next to confirm that the content after EJB NAME is Mathejb;
5. Only choose Generate Main Function, then click Finish;
6. Select MathejbTestClient1 subpages in the document window, please confirm if the code segment contains this sentence:
Object ref = context.lookup ("ejb / mathejb");
7. Confirm that the URL is:
String URL = "T3: // localhost: 7001";
8. Add:
Try {
Mathejbhome home = client.getHome (); mathejb test = home.create ();
System.out.println ("Result IS:" Test.Add (12, 12));
}
Catch (Exception E) {
System.out.println (E.TOString ());
9.SAVE ALL;
Note: The following steps are not necessary, you can directly start WEBLOGIC, but you must only start one.
Third, configure Server
1. Select Run / Configurations in the menu bar.
2. Select the RUN page;
3. Click New;
4. Enter a server after NAME;
5. Select Server in TYPE;
6. Click OK.
Fourth, deployment and operation
1. Select Perform Server by Run Projest in the Toolbar to start WebLogic;
2. Then find the math.jar under the MATH module in the engineering window, right-click open the menu, select DeployOptions for "Math.jar" / Deploy to deploy it in WebLogic;
3. Find MathejbTestClient1.java in the engineering window, right-click to open the menu, click Run Use "MathejbTestClient1";
4. In the information window, we can see:
Result IS: 24
OK, I successfully made the first session bean.
Remember: WebLogic can be used, the port must be 7001, if not, "String Url =" T3: // localhost: 7001 ";" changed to your corresponding port.
My article is the first Auro Forum (www.newer.com.cn/bbs) and programmers forum (www.9cbs.net), welcome to reprint, but please keep the author and the name of the revision, thank you.
