jboss下配置jndi利用spring的IOC来获得

本来项目内用的是普通数据源.考虑没有分布式的数据访问.就使用了apache-commons-dbcp.但是后来项目内要加一个第三方的报表***工具.该工具强制要求使用JNDI来获得连接(该死的)没办法.只有加了.显将配置步骤和一个错误做笔记如下:

1. 环境: windowsXp系统.使用的是jbossGA-4.2.2 sqlserver2000.
项目架构是 Spring+ibatis+struts.
2. 配置步骤1 . 由于jboss会自动查找server/default/deploy目录下的 **-ds.xml文件.并读取其中内容.来得到相应的DataSource,我的文件具体内容如下:
<?xml version="1.0" encoding="UTF-8"?>
<datasources>
<local-tx-datasource>
<jndi-name>jdbc/DataSource</jndi-name>
<connection-url>jdbc:jtds:sqlserver://localhost:1433/fnx</connection-url>
<driver-class>net.sourceforge.jtds.jdbc.Driver</driver-class>
<user-name>sa</user-name>
<password>1234</password>

<metadata>
<type-mapping>MS SQLSERVER2000</type-mapping>
</metadata>
</local-tx-datasource>
</datasources>

配置步骤2 . (有部分内容来自网上) 由于使用spring来获取jndi.所以实现了FactoryBean, InitializingBean

get/set方法没加

public class DataSourceFactoryBean implements FactoryBean, InitializingBean {

/** 缓存数据源对象 */
private DataSource dataSource;
/** 是否jndi数据源 */
private boolean jndi;
/** 数据源的名字（如果是jndi数据源） */
private String jndiName;
/** jdbc驱动类(非jndi的情况) */
private String driverClassName;
/** 数据库的url(非jndi的情况) */
private String url;
/** 用户名(非jndi的情况) */
private String username;
/** 密码(非jndi的情况) */
private String password;

public void afterPropertiesSet() throws Exception {
if (this.isJndi()) {
if (!org.springframework.util.StringUtils.hasText(this.jndiName)) {
throw new IllegalArgumentException("jndiName is required");
}
} else {
if (!org.springframework.util.StringUtils
.hasText(this.driverClassName)) {
throw new IllegalArgumentException(
"driverClassName is required");
}
if (!org.springframework.util.StringUtils.hasText(this.url)) {
throw new IllegalArgumentException("url is required");
}
if (!org.springframework.util.StringUtils.hasText(this.username)) {
throw new IllegalArgumentException("username is required");
}
if (!org.springframework.util.StringUtils.hasText(this.password)) {
throw new IllegalArgumentException("password is required");
}
}
// 在初始化时就创建数据源
this.createDataSource();
}

public Object getObject() throws Exception {
DataSource ds = this.createDataSource();
return ds;
}

public Class getObjectType() {
return javax.sql.DataSource.class;
}

public boolean isSingleton() {
return true;
}

protected DataSource createDataSource() {
DataSource ds = this.dataSource;
if (ds == null) {
try {
if (this.isJndi()) {
ds = new JndiDataSourceSupport()
.lookupDataSource(this.jndiName);
} else {
ds = new DriverManagerDataSource(driverClassName, url,
username, password);
}
} catch (Throwable err) {
throw new RuntimeException(err);
}
}
this.dataSource = ds;
return ds;
}

private class JndiDataSourceSupport extends JndiLocatorSupport {
public DataSource lookupDataSource(String jndiName)
throws NamingException {
return (DataSource) super.lookup(jndiName,getObjectType());
}
}

}



配置步骤3. spring的配置文件片段

<bean id="dataSource" class="****&*#*****.dao.DataSourceFactoryBean">
<property name="jndi" value="${jdbc.IS_JNDI}" />
<property name="jndiName" value="${jdbc.jndiName}" />
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
</bean>

<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:config/jdbc.properties</value>
</list>
</property>
</bean>



设置步骤4 . jdbc.properties



#false 为开发时候使用的传统datasource 。为true为使用jndi得到datasource。建议开发时候使用前者
jdbc.IS_JNDI=true
jdbc.jndiName=java:jdbc/DataSource

#sql
jdbc.driverClassName=net.sourceforge.jtds.jdbc.Driver
jdbc.url=jdbc:jtds:sqlserver://localhost:1433/fnx
jdbc.username=sa
jdbc.password=1234





设置步骤5 一些说明.上面绿色部分要相同.jndi的datasource采用的而是jdts.开始的时候总是有错.第一次无法的到连接.

刷新后就可以得到连接.百思不得其解.经过查找发现自己大意了.没有吧jdts的jar放在jboss4.2.2GA/server/default/lib下面.解决和异常如下:

jboss jndi jtds sqlserver2000 第一次错误得不到连接.然后刷新页面就ok的问题.
问题搞定.
就是jar没加对.
jdni属于容器的应该加在容器内.我们加载在项目内.当然第一次会出错.
然后第二次项目内的jar就会加载到容器你.所以就可用了.
应该在jboss4.2.2GA/server/default/lib 加数据库jar就可以了.

错误异常如下:
Throwable while attempting to get a new connection: null
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (org.jboss.resource.JBossResourceException: Apparently wrong driver class specified for URL: class: net.sourceforge.jtds.jdbc.Driver, url: jdbc:jtds:sqlserver://localhost:1433/fnx)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:179)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:577)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:262)
at org.jboss.resource.connectionmanager.JBossManagedConnectionPool$BasePool.getConnection(JBossManagedConnectionPool.java:500)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.getManagedConnection(BaseConnectionManager2.java:341)
at org.jboss.resource.connectionmanager.TxConnectionManager.getManagedConnection(TxConnectionManager.java:315)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:396)
at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:842)
at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:182)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:322)
at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:255)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:102)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
at $Proxy56.getUserByPassword(Unknown Source)
at com.thams.user.action.LoginAction.gotoLogin(LoginAction.java:43)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.thams.framework.action.BaseAction.dispatchMethod(BaseAction.java:205)
at com.thams.framework.action.BaseAction.execute(BaseAction.java:129)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.thams.framework.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:58)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.jboss.resource.JBossResourceException: Apparently wrong driver class specified for URL: class: net.sourceforge.jtds.jdbc.Driver, url: jdbc:jtds:sqlserver://localhost:1433/fnx
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.getDriver(LocalManagedConnectionFactory.java:290)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:170)
... 50 more