我几天来一直在努力解决这个问题,我在StackOverflow和其他开发网站上搜索了数十篇文章。
我使用Deployment Manager界面使用H2 JDBC提供程序和我的应用程序的数据源为我的应用程序配置了一个Websphere Application Server 8.0.0.3。{/ 3}}。
JDBC数据源:
Name: H2 JDBC Provider
Classpath: $(H2_JDBC_DRIVER_PATH)/h2-1.3.161.jar
Implementation class name: org.h2.jdbcx.JdbcDataSource
数据来源:
Provider: H2 JDBC Provider
Name: SGO_datasource
JNDI name: jdbc/sgodb
Use this data source in container managed persistence (CMP): true
Data store helper class name: com.ibm.websphere.rsadapter.ConnectJDBCDataStoreHelper (user-defined)
(default values for all the rest)
Custom properties:
URL: jdbc:h2:mem:test;DB_CLOSE_DELAY=-1
user: sa
password: sa
我使用DM中的测试连接按钮测试了这个数据源,它工作正常。
当我尝试从我的应用程序访问此数据源时,我在首次访问时遇到此错误:
Caused by: <openjpa-2.1.2-SNAPSHOT-r422266:1227818 fatal user error> org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or DataSource class name must be specified in the ConnectionDriverName property.
阅读此here后,我检查了生成的WAR中persistence.xml文件的位置,它似乎位于正确的位置:WEB-INF / classes / META-INF / persistence.xml。
的persistence.xml:
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="sgo">
<jta-data-source>java:comp/env/jdbc/sgodb</jta-data-source>
</persistence-unit>
</persistence>
有什么想法吗?提前谢谢。
答案 0 :(得分:1)
发现它!
这些完整的JNDI名称似乎无法在Websphere中运行。我使用了简单的&#34; jdbc / sgodb&#34;相反,它可以找到上下文。
import android.app.LocalActivityManager;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTabHost;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
public class HelloTab extends Fragment {
private FragmentTabHost mTabHost;
public Context context;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.hellotablay,container, false);
context= getActivity().getApplicationContext();
mTabHost = (FragmentTabHost)rootView.findViewById(android.R.id.tabhost);
// @SuppressWarnings("deprecation")
LocalActivityManager mLocalActivityManager = new LocalActivityManager(this.getActivity(), false);
mLocalActivityManager.dispatchCreate(savedInstanceState);
mTabHost.setup(getActivity(),getChildFragmentManager(),android.R.id.tabcontent);
mTabHost.addTab(mTabHost.newTabSpec("fragmentb").setIndicator("Fragment B"),
Tab11.class, null);
mTabHost.addTab(mTabHost.newTabSpec("fragmentc").setIndicator("Fragment C"),
Tab11.class, null);
mTabHost.addTab(mTabHost.newTabSpec("fragmentd").setIndicator("Fragment D"),
Tab11.class, null);
enter code here
return rootView;
}
}
而不是
<jta-data-source>jdbc/sgodb</jta-data-source>