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Integrate J2ME Mobile Clients into Web Service 1 -- Install Web Service

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In this post I will build one Web Service with Axis2, and write one J2ME application as one Web Service client. We will know how Web Service works with mobile client.

javax.servlet.ServletException: Unknown initial character set index '48' received from server. Initial client character set can

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This week I reinstalled my system, and I found one J2EE Servlet project can not be run after I reinstalled all of the programming softwares and eclipse, this project does connect MySQL database(This project had no problem before). I got this Exception: javax.servlet.ServletException: Unknown initial character set index
'48' received from server. Initial client character set can be forced
via the 'characterEncoding' property.

 Strange, I went to ask my Google friend and I found those information:

MyEclipse+Hibernate 4--Connect to Oracle Database

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The connection with Oracle Database has the same step when you connect with MySQL database. The difference lies on the selection of Driver JARs.

In DB Browse, click new icon to create a new connection.

Click Configure database driver:

Add new drivers:

MyEclipse+Hibernate 3--Operatation with database, update records

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If you get the data from the same one Session and want to update it right now, just use setXXX() and call session.flush(), and the new data will be inputted into the session. We have used this method in chapter before.

If you has opened one session to get he data from it and then closed the session after finished. How to update the data? Another new seesion should be opened, and call update() to update the database. For example, the first record name is "1", it will be replaced with "lee":

package test;
import java.util.Iterator;
import java.util.List;

MyEclipse+Hibernate 2--Operatation with database, query and list records

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Let's go over the project we have done. Open Package Explorer, the class and file structue is like this:

Open User.hbm.xml, this file  is the database mapping file of project, open it.

MyEclipse+Hibernate 1--Get start and add record

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First of all, I strongly recommand you to use MyEclispe 5.0.1GA and Eclipse 3.2M2, because Hibernate seems do not like the old version of MyEclipse(4.0 or 4.1) and Eclispe 3.1, many boring and stupid exceptions were thrown during the database operation test, such as "cannot connect to database","primery-key error". After 2 days of suffering this, I begin to use the new version, this makes Hibernate very very happy, and it works very fine till now.

1. Eclipse 3.2M2     free for downloading
2. MyEclispe 5.0.1 GA  free to test


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作者: eclipsetolearn


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Debugging von JSP und Java Anwendungen(T)

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Debugging von JSP und Java Anwendungen

Dieses Tutorial gibt einen Überblick wie man das integrierte Debugging Feature von Eclipse zum debuggen von Web-Projekten und anderen Projekten nutzt.



Sascha Wolski

Sebastian Hennebrüder – Tutorials für Struts, EJB, xdoclet und eclipse.



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