JDBC驱动程序的PostgreSQL采用Android [英] Driver JDBC PostgreSQL with Android
问题描述
我想我的Android应用程序连接到服务器（PostgreSQL的）与JDBC驱动程序，但我有此错误：
I'm trying to connect my android application to a server (PostgreSQL) with JDBC Driver, but i have this error :
java.lang.ClassNotFoundException: org.postgresql.Driver
...
Caused by: java.lang.NoClassDefFoundError: org/postgresql/Driver
... 12 more
Caused by: java.lang.ClassNotFoundException: org.postgresql.Driver
...
java.sql.SQLException: No suitable driver
我试了很多东西，比如添加在路径驱动程序的地址，但没有工作。我跟着这个教程： http://appliedcoffeetechnology.tumblr.com/post/10657124340 并增加了驾驶员JDBC4（我也尝试了JDBC3），在构建路径。
I tried many things, like add the address of the driver in the Path, but nothing work. I followed this tutorial : http://appliedcoffeetechnology.tumblr.com/post/10657124340 and added the driver JDBC4 (i also tried the JDBC3), in the Build Path.
每个人都可以帮我吗？
推荐答案
虽然不是严格的回答你的问题，我有一个建议。
While not the strict answer to your question, I do have a suggestion.
不要试图直接在Android设备上使用JDBC。你可以节省很多麻烦的方式。 <一href="http://stackoverflow.com/questions/15853367/jdbc-vs-web-service-for-android/15853566#15853566">I更详细地写上了JDBC VS Web Service的Android的问题。
Don't try to use JDBC on the Android device directly. You'll save a lot of hassle that way. I wrote about that in more detail on the "JDBC vs Web Service for Android" question.
写您的数据库逻辑通过Web访问的应用程序服务器上，并通过HTTP + JSON，SOAP，XML-RPC，或类似的交谈，该应用程序服务器。这将是一个很大的带宽效率，你可以让你的应用程序有更多的宽容与连接这样的问题。它也使您不必直接暴露你的数据库服务器的互联网 - 没有太大的PostgreSQL的一个担心，只要您使用SSL，但还是最好不要有做所有
Write your database logic on a web-accessible application server and talk to that application server via HTTP+JSON, SOAP, XML-RPC, or similar. This will be a lot more bandwidth efficient and you can make your app a lot more tolerant of issues with connectivity that way. It also saves you from having to expose your database server directly to the Internet - not much of a worry with PostgreSQL so long as you use SSL, but still better not to have to do at all.
使用JAX-RS在JBoss AS 7，Tomcat 7的或类似的，你应该能够把一个网页REST风格的XML / JSON API服务，为您的应用程序pretty的轻松。人们似乎也把REST / JSON API一起使用pretty的迅速用PHP。
Using JAX-RS on JBoss AS 7, Tomcat 7, or similar you should be able to put together a web RESTful XML/JSON services API for your app pretty easily. People also seem to put REST/JSON APIs together pretty quickly with PHP.
您可以写在pretty的一个JSON / REST的Web API的多，你想用不同程度的缓解任何语言。只要搜索 REST服务器yourlanguagename 。
You can write a JSON/REST web API in pretty much any language you like with varying degrees of ease. Just search for REST server yourlanguagename.
卡奥已经指出，在一个已删除的答案，也有虚拟的JDBC驱动程序，通过HTTP隧道请求。这些可适合于一些应用。
"Kaw" has pointed out in a deleted answer that there are also virtual JDBC drivers that tunnel requests over HTTP. These may be suitable for some applications.
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